Talk:2017 Atlantic hurricane season/ACE calcs

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This is the page for calculating the Accumulated cyclone energy for the 2017 Atlantic hurricane season. If any storms of a season happen to cross years, the storm's ACE counts for the previous year.[1]

The ACE is calculated by summing the squares of the estimated maximum sustained velocity of every active tropical storm (wind speed 35 knots or higher), at six-hour intervals. The numbers are divided by 10,000 to make them more manageable. The unit of ACE is 104 kt2, and for use as an index the unit is assumed. Thus,

where vmax is estimated sustained wind speed in knots.

Since the ACE calculation method uses data from six-hour intervals, the value for a particular tropical storm is dependent upon the starting time. The operational advisories from NOAA's National Hurricane Center (NHC) typically begin at 3 UTC, 9 UTC, 15 UTC or 21 UTC, while NHC's Best Track reports and the Colorado State University list typically begin at 0 UTC, 6 UTC, 12 UTC, or 18 UTC.

Operational (Advisories)[edit]

01L.Arlene[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 19 April 11 am AST 30 0
2 19 April 5 pm AST 30 0
3 19 April 11 pm AST 30 0
4 20 April 5 am AST 30 0
5 20 April 11 am AST 30 0
6 20 April 5 pm AST 40 0.1600
7 20 April 11 pm AST 45 0.2025
8 21 April 5 am AST 45 0.2025
9 21 April 11 am AST 45 Post-trop.
Total       0.565

02L.Bret[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 18 June 5 pm AST 30 Potential TC
2 18 June 11 pm AST 35 Potential TC
3 19 June 5 am AST 35 Potential TC
4 19 June 11 am AST 35 Potential TC
5 19 June 5 pm AST 35 0.1225
6 19 June 11 pm AST 35 0.1225
7 20 June 5 am AST 35 0.1225
8 20 June 11 am AST 40 0.1600
9 20 June 5 pm AST 35 Open wave
Total       0.5275

03L.Cindy[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 19 June 4 pm CDT 35 Potential TC
2 19 June 10 pm CDT 35 Potential TC
3 20 June 4 am CDT 35 Potential TC
4 20 June 10 am CDT 35 Potential TC
5 20 June 4 pm CDT 40 0.1600
6 20 June 10 pm CDT 50 0.2500
7 21 June 4 am CDT 50 0.2500
8 21 June 10 am CDT 45 0.2025
9 21 June 4 pm CDT 45 0.2025
10 21 June 10 pm CDT 45 0.2025
11 22 June 4 am CDT 35 0.1225
12 22 June 10 am CDT 30 0
13 22 June 5 pm EDT 20 0
14 22 June 11 pm EDT 15 0
15 23 June 5 am EDT 15 0
16 23 June 11 am EDT 30 0
17 23 June 5 pm EDT 20 Post-trop.
18 23 June 11 pm EDT 15 Post-trop.
19 24 June 5 am EDT 20 Post-trop.
20 24 June 11 am EDT - Dissipated
Total       1.39

05L.Don[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 17 July 5 pm AST 35 0.1225
2 17 July 11 pm AST 40 0.1600
3 18 July 5 am AST 45 0.2025
4 18 July 11 am AST 35 0.1225
5 18 July 5 pm AST 35 0.1225
Total       0.73

06L.Emily[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 31 July 6 am EDT 30 special
2 31 July 8 am EDT 40 special
3 31 July 11 am EDT 40 0.1600
4 31 July 5 pm EDT 30 -
5 31 July 11 pm EDT 25 -
6 1 Aug 5 am EDT 25 -
7 1 Aug 11 am EDT 25 -
8 1 Aug 5 am EDT 30 -
9 1 Aug 11 am EDT 30 Post-trop.
Total       0.16

07L.Franklin[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 6 August 5 pm EDT 30 Potential TC
2 6 August 11 pm EDT 35 0.1225
3 7 August 5 am EDT 40 0.1600
4 7 August 10 am CDT 50 0.2500
5 7 August 4 pm CDT 50 0.2500
6 7 August 10 pm CDT 50 0.2500
7 8 August 4 am CDT 45 0.2025
8 8 August 10 am CDT 40 0.1600
9 8 August 4 pm CDT 35 0.1225
10 8 August 10 pm CDT 45 0.2025
11 9 August 4 am CDT 55 0.3025
12 9 August 10 am CDT 60 0.3600
13 9 August 4 pm CDT 65 0.4225
14 9 August 10 pm CDT 75 0.5625
15 10 August 4 am CDT 60 0.3600
16 10 August 10 am CDT 25 Dissipated
Total       3.7275

08L.Gert[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 12 August 11 pm EDT 30 0
2 13 August 5 am EDT 30 0
3 13 August 11 am EDT 30 0
4 13 August 5 pm EDT 35 0.1225
5 13 August 11 pm EDT 40 0.1600
6 14 August 5 am EDT 40 0.1600
7 14 August 11 am EDT 50 0.2500
8 14 August 5 pm EDT 60 0.3600
9 14 August 11 pm EDT 65 0.4225
10 15 August 5 am EDT 65 0.4225
11 15 August 11 am EDT 65 0.4225
12 15 August 5 pm EDT 70 0.4900
13 15 August 11 pm EDT 75 0.5625
14 16 August 5 am AST 80 0.6400
15 16 August 11 am AST 80 0.6400
16 16 August 5 pm AST 85 0.7225
17 16 August 11 pm AST 90 0.8100
18 17 August 5 am AST 85 0.7225
19 17 August 11 am AST 70 0.4900
20 17 August 5 pm AST 55 Extratropical
Total       7.3975

09L.Harvey[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 17 August 11 am AST 30 Potential TC
2 17 August 5 pm AST 35 0.1225
3 17 August 11 pm AST 35 0.1225
4 18 August 5 am AST 35 0.1225
5 18 August 11 am AST 35 0.1225
6 18 August 5 pm AST 35 0.1225
7 18 August 11 pm AST 35 0.1225
8 19 August 5 am AST 35 0.1225
9 19 August 11 am AST 35 0.1225
10 19 August 5 pm EDT 30 0
11 19 August 11 pm EDT 30 Dissipated
Between 11 pm EDT 19 August and 10 am CDT 23 August,
the system was a tropical wave, not a tropical cyclone.
12 23 August 10 am CDT 30 0
13 23 August 4 pm CDT 30 0
14 23 August 10 pm CDT 30 0
15 24 August 4 am CDT 40 0.1600
16 24 August 10 am CDT 55 0.3025
17 24 August 1 pm CDT 75 Special
18 24 August 4 pm CDT 75 0.5625
19 24 August 10 pm CDT 75 0.5625
20 25 August 4 am CDT 90 0.8100
21 25 August 10 am CDT 95 0.9025
22 25 August 4 pm CDT 110 1.2100
23 25 August 10 pm CDT 115 1.3225
24 26 August 4 am CDT 85 0.7225
25 26 August 10 am CDT 65 0.4225
26 26 August 4 pm CDT 55 0.3025
27 26 August 10 pm CDT 45 0.2025
28 27 August 4 am CDT 40 0.1600
29 27 August 10 am CDT 35 0.1225
30 27 August 4 pm CDT 35 0.1225
31 27 August 10 pm CDT 35 0.1225
32 28 August 4 am CDT 35 0.1225
33 28 August 10 am CDT 35 0.1225
34 28 August 4 pm CDT 40 0.1600
35 28 August 10 pm CDT 40 0.1600
36 29 August 4 am CDT 40 0.1600
37 29 August 10 am CDT 40 0.1600
38 29 August 4 pm CDT 45 0.2025
39 29 August 10 pm CDT 45 0.2025
40 30 August 4 am CDT 40 0.1600
41 30 August 10 am CDT 40 0.1600
42 30 August 4 pm CDT 35 0.1225
Total       10.7225

11L.Irma[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 30 August 11 am AST 45 0.2025
2 30 August 5 pm AST 50 0.2500
3 30 August 11 pm AST 55 0.3025
4 31 August 5 am AST 60 0.3600
5 31 August 11 am AST 85 0.7225
6 31 August 5 pm AST 100 1.0000
7 31 August 11 pm AST 100 1.0000
8 1 September 5 am AST 100 1.0000
9 1 September 11 am AST 95 0.9025
10 1 September 5 pm AST 105 1.1025
11 1 September 11 pm AST 100 1.0000
12 2 September 5 am AST 95 0.9025
13 2 September 11 am AST 95 0.9025
14 2 September 5 pm AST 95 0.9025
15 2 September 11 pm AST 95 0.9025
16 3 September 5 am AST 100 1.0000
17 3 September 11 am AST 100 1.0000
18 3 September 5 pm AST 100 1.0000
19 3 September 11 pm AST 100 1.0000
20 4 September 5 am AST 100 1.0000
21 4 September 11 am AST 105 1.1025
22 4 September 5 pm AST 115 1.3225
23 4 September 11 pm AST 120 1.4400
24 5 September 5 am AST 130 1.6900
25 5 September 8 am AST 150 Special
26 5 September 11 am AST 155 2.4025
27 5 September 5 pm AST 160 2.5600
28 5 September 11 pm AST 160 2.5600
29 6 September 5 am AST 160 2.5600
30 6 September 11 am AST 160 2.5600
31 6 September 5 pm AST 160 2.5600
32 6 September 11 pm AST 160 2.5600
33 7 September 5 am AST 155 2.4025
34 7 September 11 am AST 150 2.2500
35 7 September 5 pm AST 150 2.2500
36 7 September 11 pm AST 145 2.1025
37 8 September 5 am EDT 135 1.8225
38 8 September 11 am EDT 130 1.6900
39 8 September 5 pm EDT 135 1.8225
40 8 September 11 pm EDT 140 1.9600
41 9 September 5 am EDT 135 1.8225
42 9 September 11 am EDT 110 1.2100
43 9 September 5 pm EDT 110 1.2100
44 9 September 11 pm EDT 105 1.1025
45 10 September 5 am EDT 115 1.3225
46 10 September 11 am EDT 115 1.3225
47 10 September 5 pm EDT 95 0.9025
48 10 September 11 pm EDT 85 0.7225
49 11 September 5 am EDT 65 0.4225
50 11 September 11 am EDT 55 0.3025
51 11 September 5 pm EDT 45 0.2025
52 11 September 11 pm EDT 30 0
53 12 September 5 am EDT 10 Post-trop.
Total       66.6125

12L.Jose[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 5 September 11 am AST 35 0.1225
2 5 September 5 pm AST 40 0.1600
3 5 September 11 pm AST 45 0.2025
4 6 September 5 am AST 50 0.2500
5 6 September 11 am AST 60 0.3600
6 6 September 5 pm AST 65 0.4225
7 6 September 11 pm AST 75 0.5625
8 7 September 5 am AST 80 0.6400
9 7 September 11 am AST 80 0.6400
10 7 September 5 pm AST 105 1.1025
11 7 September 11 pm AST 105 1.1025
12 8 September 5 am AST 110 1.2100
13 8 September 11 am AST 130 1.6900
14 8 September 5 pm AST 130 1.6900
15 8 September 11 pm AST 135 1.8225
16 9 September 5 am AST 130 1.6900
17 9 September 11 am AST 125 1.5625
18 9 September 5 pm AST 125 1.5625
19 9 September 11 pm AST 115 1.3225
20 10 September 5 am AST 115 1.3225
21 10 September 11 am AST 115 1.3225
22 10 September 5 pm AST 105 1.1025
23 10 September 11 pm AST 100 1.0000
24 11 September 5 am AST 90 0.8100
25 11 September 11 am AST 90 0.8100
26 11 September 5 pm AST 85 0.7225
27 11 September 11 pm AST 75 0.5625
28 12 September 5 am AST 65 0.4225
29 12 September 11 am AST 65 0.4225
30 12 September 5 pm AST 65 0.4225
31 12 September 11 pm AST 65 0.4225
32 13 September 5 am AST 65 0.4225
33 13 September 11 am AST 65 0.4225
34 13 September 5 pm AST 65 0.4225
35 13 September 11 pm AST 70 0.4900
36 14 September 5 am AST 65 0.4225
37 14 September 11 am AST 60 0.3600
38 14 September 5 pm AST 60 0.3600
39 14 September 11 pm AST 60 0.3600
40 15 September 5 am AST 60 0.3600
41 15 September 11 am AST 60 0.3600
42 15 September 5 pm EDT 65 0.4225
43 15 September 11 pm EDT 70 0.4900
44 16 September 5 am EDT 70 0.4900
45 16 September 11 am EDT 70 0.4900
46 16 September 5 pm EDT 70 0.4900
47 16 September 11 pm EDT 70 0.4900
48 17 September 5 am EDT 70 0.4900
49 17 September 11 am EDT 80 0.6400
50 17 September 5 pm EDT 80 0.6400
51 17 September 11 pm EDT 80 0.6400
52 18 September 5 am EDT 75 0.5625
53 18 September 11 am EDT 65 0.4225
54 18 September 5 pm EDT 65 0.4225
55 18 September 11 pm EDT 65 0.4225
56 19 September 5 am EDT 65 0.4225
57 19 September 11 am EDT 65 0.4225
58 19 September 5 pm EDT 65 0.4225
59 19 September 11 pm EDT 60 0.3600
60 20 September 5 am EDT 55 0.3025
61 20 September 11 am EDT 60 0.3600
62 20 September 5 pm EDT 60 0.3600
63 20 September 11 pm EDT 50 0.2500
64 21 September 5 am EDT 50 0.2500
65 21 September 11 am EDT 50 0.2500
66 21 September 5 pm EDT 45 0.2025
67 21 September 11 pm EDT 45 Post-Trop.
68 22 September 5 am EDT 45 Post-Trop.
Total       42.1525

13L.Katia[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 5 September 4 pm CDT 30 0
2 5 September 10 pm CDT 30 0
3 6 September 4 am CDT 35 0.1225
4 6 September 10 am CDT 40 0.1600
5 6 September 4 pm CDT 65 0.4225
6 6 September 10 pm CDT 70 0.4900
7 7 September 4 am CDT 70 0.4900
8 7 September 10 am CDT 70 0.4900
9 7 September 4 pm CDT 70 0.4900
10 7 September 10 pm CDT 75 0.5625
11 8 September 4 am CDT 80 0.6400
12 8 September 10 am CDT 85 0.7225
13 8 September 4 pm CDT 90 0.8100
14 8 September 10 pm CDT 65 0.4225
15 8 September 4 am CDT 35 0.1225
16 8 September 10 am CDT 30 Dissipated
Total       5.945

14L.Lee[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 14 September 11 pm AST 30 0
2 15 September 5 am AST 30 0
3 15 September 11 am AST 30 0
4 15 September 5 pm AST 30 0
5 15 September 11 pm AST 30 0
6 16 September 5 am AST 30 0
7 16 September 11 am AST 35 0.1225
8 16 September 5 pm AST 35 0.1225
9 16 September 11 pm AST 35 0.1225
10 17 September 5 am AST 35 0.1225
11 17 September 11 am AST 30 0
12 17 September 5 pm AST 30 0
13 17 September 11 pm AST 30 0
14 18 September 5 am AST 30 0
15 18 September 11 am AST 30 0
16 18 September 5 pm AST 30 0
17 18 September 11 pm AST 30 0
Between 11 pm AST 18 September and 5 pm AST 22 September,
the system was not a tropical cyclone.
18 22 September 5 pm AST 30 0
19 22 September 11 pm AST 35 0.1225
20 23 September 5 am AST 35 0.1225
21 23 September 11 am AST 40 0.1600
22 23 September 5 pm AST 40 0.1600
23 23 September 11 pm AST 45 0.2025
24 24 September 2 am AST 65 Special
25 24 September 5 am AST 75 0.5625
26 24 September 11 am AST 80 0.6400
27 24 September 5 pm AST 80 0.6400
28 24 September 11 pm AST 80 0.6400
29 25 September 5 am AST 80 0.6400
30 25 September 11 am AST 80 0.6400
31 25 September 5 pm AST 70 0.5625
32 25 September 11 pm AST 80 0.6400
33 26 September 5 am AST 85 0.7225
34 26 September 11 am AST 90 0.8100
35 26 September 5 pm AST 95 0.9025
36 26 September 11 pm AST 95 0.9025
37 27 September 5 am AST 95 0.9025
38 27 September 11 am AST 100 1.0000
39 27 September 5 pm AST 100 1.0000
40 27 September 11 pm AST 95 0.9025
41 28 September 5 am AST 95 0.9025
42 28 September 11 am AST 85 0.7225
43 28 September 5 pm AST 80 0.6400
44 28 September 11 pm AST 70 0.4900
45 29 September 5 am AST 65 0.4225
46 29 September 11 am AST 60 0.3600
47 29 September 5 pm AST 55 0.3025
48 29 September 11 pm AST 50 0.2500
49 30 September 5 am AST 45 Extratrop
Total       17.455

15L.Maria[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 16 September 11 am AST 30 Potential TC
2 16 September 5 pm AST 45 0.2025
3 16 September 11 pm AST 45 0.2025
4 17 September 5 am AST 55 0.3025
5 17 September 11 am AST 55 0.3025
6 17 September 5 pm AST 65 0.4225
7 17 September 11 pm AST 75 0.5625
8 18 September 5 am AST 80 0.6400
9 18 September 11 am AST 105 1.1025
10 18 September 5 pm AST 115 1.3225
11 18 September 8 pm AST 140 Special
12 18 September 11 pm AST 140 1.9600
13 19 September 5 am AST 135 1.8225
14 19 September 11 am AST 140 1.9600
15 19 September 5 pm AST 145 2.1025
16 19 September 11 pm AST 150 2.2500
17 20 September 5 am AST 135 1.8225
18 20 September 11 am AST 120 1.4400
19 20 September 5 pm AST 95 0.9025
20 20 September 11 pm AST 95 0.9025
21 21 September 5 am AST 100 1.0000
22 21 September 11 am AST 100 1.0000
23 21 September 5 pm AST 105 1.1025
24 21 September 11 pm AST 110 1.2100
25 22 September 5 am AST 110 1.2100
26 22 September 11 am AST 110 1.2100
27 22 September 5 pm AST 110 1.2100
28 22 September 11 pm AST 110 1.2100
29 23 September 5 am AST 105 1.1025
30 23 September 11 am AST 100 1.0000
31 23 September 5 pm AST 100 1.0000
32 23 September 11 pm AST 100 1.0000
33 24 September 5 am AST 95 0.9025
34 24 September 11 am AST 90 0.8100
35 24 September 5 pm AST 90 0.8100
36 24 September 11 pm AST 80 0.6400
37 25 September 5 am AST 70 0.4900
38 25 September 11 am EDT 70 0.4900
39 25 September 5 pm AST 70 0.4900
40 25 September 11 pm EDT 70 0.4900
41 26 September 5 am AST 65 0.4225
42 26 September 11 am AST 65 0.4225
43 26 September 5 pm AST 60 0.3600
44 26 September 11 pm AST 60 0.3600
45 27 September 5 am AST 60 0.3600
46 27 September 11 am AST 65 0.4225
47 27 September 5 pm AST 65 0.4225
48 27 September 11 pm AST 65 0.4225
49 28 September 5 am AST 60 0.3600
50 28 September 11 am AST 60 0.3600
51 28 September 5 pm AST 55 0.3025
52 28 September 11 pm AST 55 0.3025
53 29 September 5 am AST 50 0.2500
54 29 September 11 am AST 50 0.2500
55 29 September 5 pm AST 50 0.2500
56 29 September 11 pm AST 50 0.2500
57 30 September 5 am AST 50 0.2500
58 30 September 11 am AST 50 0.2500
59 30 September 5 am AST 45 Extratrop
Total       44.6175

16L.Nate[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 4 October 11 am EDT 30 0
2 4 October 5 pm EDT 30 0
3 4 October 11 pm EDT 30 0
4 5 October 5 am EDT 30 0
5 5 October 11 am EDT 35 0.1225
6 5 October 5 pm EDT 35 0.1225
7 5 October 11 pm EDT 35 0.1225
8 6 October 4 am CDT 40 0.1600
9 6 October 10 am CDT 45 0.2025
10 6 October 4 pm CDT 50 0.2500
11 6 October 10 pm CDT 60 0.3600
12 7 October 4 am CDT 70 0.4900
13 7 October 10 am CDT 80 0.6400
14 7 October 4 pm CDT 80 0.6400
15 7 October 10 pm CDT 75 0.5625
16 8 October 4 am CDT 60 0.3600
17 8 October 10 am CDT 30 0
18 8 October 5 pm EDT 30 0
19 8 October 11 pm EDT 30 0
20 9 October 5 am EDT 15 Post-trop.
Total       4.0325

17L.Ophelia[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 9 October 5 am AST 30 0
2 9 October 11 am AST 35 0.1225
3 9 October 5 pm AST 40 0.1600
4 9 October 11 pm AST 45 0.2025
5 10 October 5 am AST 45 0.2025
6 10 October 11 am AST 45 0.2025
7 10 October 5 pm AST 50 0.2500
8 10 October 11 pm AST 45 0.2025
9 11 October 5 am AST 55 0.3025
10 11 October 11 am AST 60 0.3600
11 11 October 5 pm AST 65 0.4225
12 11 October 11 pm AST 75 0.5625
13 12 October 5 am AST 75 0.5625
14 12 October 11 am AST 80 0.6400
15 12 October 5 pm AST 85 0.7225
16 12 October 11 pm AST 90 0.8100
17 13 October 5 am AST 90 0.8100
18 13 October 11 am AST 85 0.7225
19 13 October 5 pm AST 85 0.7225
20 13 October 11 pm AST 85 0.7225
21 14 October 5 am AST 85 0.7225
22 14 October 11 am AST 100 1.0000
23 14 October 5 pm AST 100 1.0000
24 14 October 11 pm AST 100 1.0000
25 15 October 5 am AST 90 0.8100
26 15 October 11 am AST 80 0.6400
27 15 October 5 pm AST 75 0.5625
Total       14.4375

18L.Philippe[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 27 October 5 pm EDT 35 Potential TC
2 27 October 11 pm EDT 35 Potential TC
3 28 October 5 am EDT 30 Potential TC
4 28 October 11 am EDT 30 0
5 28 October 5 pm EDT 35 0.1225
6 28 October 11 pm EDT 35 0.1225
7 29 October 5 am EDT 40 0.1600
8 29 October 11 am EDT 45 0.2025
9 29 October 5 pm EDT 50 Dissipated
Total       0.6075

19L.Rina[edit]

Adv. Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
1 6 November 5 am AST 30 0
2 6 November 11 am AST 30 0
3 6 November 5 pm AST 30 0
4 6 November 11 pm AST 35 0.1225
5 7 November 5 am AST 35 0.1225
6 7 November 11 am AST 35 0.1225
7 7 November 5 pm AST 40 0.1600
8 7 November 11 pm AST 45 0.2025
9 8 November 5 am AST 50 0.2500
10 8 November 11 am AST 50 0.2500
11 8 November 5 pm AST 45 0.2025
12 8 November 11 pm AST 45 0.2025
13 9 November 5 am AST 40 0.1600
14 9 November 11 am AST 40 Post-trop.
Total       1.795

Best Track (Tropical Cyclone Reports)[edit]

01L.Arlene[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
16 April 0600 UTC 55 Extratrop.
16 April 1200 UTC 55 Extratrop.
16 April 1800 UTC 55 Extratrop.
17 April 0000 UTC 50 Extratrop.
17 April 0600 UTC 45 Extratrop.
17 April 1200 UTC 45 Extratrop.
17 April 1800 UTC 45 Extratrop.
18 April 0000 UTC 40 Extratrop.
18 April 0600 UTC 35 Extratrop.
18 April 1200 UTC 35 Extratrop.
18 April 1800 UTC 30 Extratrop.
19 April 0000 UTC 30 0
19 April 0600 UTC 30 0
19 April 1200 UTC 30 0
19 April 1800 UTC 30 0
20 April 0000 UTC 30 0
20 April 0600 UTC 35 0.1225
20 April 1200 UTC 35 0.1225
20 April 1800 UTC 40 0.1600
21 April 0000 UTC 45 0.2025
21 April 0600 UTC 45 0.2025
21 April 1200 UTC 45 Extratrop.
21 April 1800 UTC 40 Extratrop.
22 April 0000 UTC 40 Extratrop.
22 April 0600 UTC 40 Extratrop.
22 April 1200 UTC 35 Extratrop.
22 April 1800 UTC 30 Extratrop.
Total     0.81

02L.Bret[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
18 June 1800 UTC 35 Disturbance
19 June 0000 UTC 35 Disturbance
19 June 0600 UTC 35 Disturbance
19 June 1200 UTC 35 Disturbance
19 June 1800 UTC 40 0.1600
20 June 0000 UTC 40 0.1600
20 June 0200 UTC 45 Special
20 June 0600 UTC 45 0.2025
20 June 0900 UTC 45 Special
20 June 1200 UTC -- Dissipated
Total     0.5225

03L.Cindy[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
19 June 1800 UTC 35 Disturbance
20 June 0000 UTC 35 Disturbance
20 June 0600 UTC 35 Disturbance
20 June 1200 UTC 40 Disturbance
20 June 1800 UTC 45 0.2025
21 June 0000 UTC 50 0.2500
21 June 0600 UTC 50 0.2500
21 June 1200 UTC 50 0.2500
21 June 1800 UTC 45 0.2025
22 June 0000 UTC 45 0.2025
22 June 0600 UTC 45 0.2025
22 June 0700 UTC 45 Special
22 June 1200 UTC 40 0.1600
22 June 1800 UTC 35 0.1225
23 June 0000 UTC 30 0
23 June 0600 UTC 30 0
23 June 1200 UTC 30 0
23 June 1800 UTC 25 Extratrop.
24 June 0000 UTC 25 Extratrop.
24 June 0600 UTC 25 Extratrop.
24 June 1200 UTC -- Dissipated
Total     1.8425

05L.Don[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
17 July 0600 UTC 30 0
17 July 1200 UTC 35 0.1225
17 July 1800 UTC 40 0.16
18 July 0000 UTC 45 0.2025
18 July 0600 UTC 40 0.16
18 July 1200 UTC 35 0.1225
18 July 1800 UTC -- Dissipated
Total     0.7675

06L.Emily[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
30 July 1800 UTC 30 0
31 July 0000 UTC 35 0.1225
31 July 0600 UTC 40 0.16
31 July 1200 UTC 45 0.2025
31 July 1445 UTC 50 Special
31 July 1800 UTC 35 0.1225
1 August 0000 UTC 30 0
1 August 0600 UTC 30 0
1 August 1200 UTC 30 0
1 August 1800 UTC 30 0
2 August 0000 UTC 30 Low
Total     0.6075

07L.Franklin[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
7 August 0000 UTC 35 0.1225
7 August 0600 UTC 40 0.16
7 August 1200 UTC 45 0.2025
7 August 1800 UTC 50 0.25
8 August 0000 UTC 50 0.25
8 August 0600 UTC 50 0.25
8 August 1200 UTC 40 0.16
8 August 1800 UTC 35 0.1225
9 August 0000 UTC 40 0.16
9 August 0600 UTC 55 0.3025
9 August 1200 UTC 60 0.36
9 August 1800 UTC 65 0.4225
10 August 0000 UTC 75 0.5625
10 August 0600 UTC 60 0.36
10 August 1200 UTC 25 0
10 August 1800 UTC -- Dissipated
Total     3.685

08L.Gert[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
12 August 1800 UTC 30 0
13 August 0000 UTC 35 0.1225
13 August 0600 UTC 35 0.1225
13 August 1200 UTC 35 0.1225
13 August 1800 UTC 35 0.1225
14 August 0000 UTC 40 0.1600
14 August 0600 UTC 45 0.2025
14 August 1200 UTC 50 0.2500
14 August 1800 UTC 55 0.3025
15 August 0000 UTC 60 0.3600
15 August 0600 UTC 65 0.4225
15 August 1200 UTC 70 0.4900
15 August 1800 UTC 70 0.4900
16 August 0000 UTC 75 0.5625
16 August 0600 UTC 80 0.6400
16 August 1200 UTC 85 0.7225
16 August 1800 UTC 95 0.9025
17 August 0000 UTC 90 0.8100
17 August 0600 UTC 80 0.6400
17 August 1200 UTC 60 0.3600
17 August 1800 UTC 50 Extratrop.
Total     7.805

09L.Harvey[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
17 August 0600 UTC 25 0
17 August 1200 UTC 30 0
17 August 1800 UTC 35 0.1225
18 August 0000 UTC 40 0.1600
18 August 0600 UTC 40 0.1600
18 August 1000 UTC 40 Special
18 August 1200 UTC 40 0.1600
18 August 1500 UTC 40 Special
18 August 1800 UTC 35 0.1225
19 August 0000 UTC 35 0.1225
19 August 0600 UTC 35 0.1225
19 August 1200 UTC 30 0
19 August 1800 UTC 30 Trop. wave
Between 1800 UTC 19 August and 1800 UTC 22 August,
the system was a tropical wave, not a tropical cyclone;
between 1800 UTC 22 August and 1200 UTC 23 August,
the system was a tropical low instead of a tropical cyclone.
23 August 1200 UTC 30 0
23 August 1800 UTC 35 0.1225
24 August 0000 UTC 40 0.1600
24 August 0600 UTC 50 0.2500
24 August 1200 UTC 60 0.3600
24 August 1800 UTC 70 0.4900
25 August 0000 UTC 80 0.6400
25 August 0600 UTC 90 0.8100
25 August 1200 UTC 95 0.9025
25 August 1800 UTC 105 1.1025
26 August 0000 UTC 115 1.3225
26 August 0300 UTC 115 Special
26 August 0600 UTC 105 1.1025
26 August 1200 UTC 65 0.4225
26 August 1800 UTC 50 0.2500
27 August 0000 UTC 45 0.2025
27 August 0600 UTC 40 0.1600
27 August 1200 UTC 35 0.1225
27 August 1800 UTC 35 0.1225
28 August 0000 UTC 35 0.1225
28 August 0600 UTC 40 0.1600
28 August 1200 UTC 40 0.1600
28 August 1800 UTC 40 0.1600
29 August 0000 UTC 40 0.1600
29 August 0600 UTC 40 0.1600
29 August 1200 UTC 40 0.1600
29 August 1800 UTC 45 0.2025
30 August 0000 UTC 45 0.2025
30 August 0600 UTC 40 0.1600
30 August 0800 UTC 40 Special
30 August 1200 UTC 40 0.1600
30 August 1800 UTC 35 0.1225
31 August 0000 UTC 30 0
31 August 0600 UTC 25 0
31 August 1200 UTC 20 0
31 August 1800 UTC 25 0
1 September 0000 UTC 30 0
1 September 0600 UTC 30 Extratrop.
1 September 1200 UTC 25 Extratrop.
1 September 1800 UTC 20 Extratrop.
2 September 0000 UTC 20 Extratrop.
2 September 0600 UTC 20 Extratrop.
2 September 1200 UTC 15 Extratrop.
2 September 1800 UTC -- Dissipated
Total     11.4425

11L.Irma[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
30 August 0000 UTC 30 0
30 August 0600 UTC 35 0.1225
30 August 1200 UTC 45 0.2025
30 August 1800 UTC 50 0.2500
31 August 0000 UTC 55 0.3025
31 August 0600 UTC 65 0.4225
31 August 1200 UTC 80 0.6400
31 August 1800 UTC 95 0.9025
1 September 0000 UTC 100 1.0000
1 September 0600 UTC 100 1.0000
1 September 1200 UTC 100 1.0000
1 September 1800 UTC 100 1.0000
2 September 0000 UTC 100 1.0000
2 September 0600 UTC 100 1.0000
2 September 1200 UTC 95 0.9025
2 September 1800 UTC 95 0.9025
3 September 0000 UTC 95 0.9025
3 September 0600 UTC 95 0.9025
3 September 1200 UTC 100 1.0000
3 September 1800 UTC 100 1.0000
4 September 0000 UTC 100 1.0000
4 September 0600 UTC 105 1.1025
4 September 1200 UTC 110 1.2100
4 September 1800 UTC 115 1.3225
5 September 0000 UTC 125 1.5625
5 September 0600 UTC 135 1.8225
5 September 1200 UTC 150 2.2500
5 September 1800 UTC 155 2.4025
6 September 0000 UTC 155 2.4025
6 September 0600 UTC 155 2.4025
6 September 1115 UTC 155 Special
6 September 1200 UTC 155 2.4025
6 September 1800 UTC 150 2.2500
7 September 0000 UTC 150 2.2500
7 September 0600 UTC 145 2.1025
7 September 1200 UTC 145 2.1025
7 September 1800 UTC 145 2.1025
8 September 0000 UTC 140 1.9600
8 September 0600 UTC 135 1.8225
8 September 1200 UTC 135 1.8225
8 September 1800 UTC 140 1.9600
9 September 0000 UTC 145 2.1025
9 September 0600 UTC 130 1.6900
9 September 1200 UTC 110 1.2100
9 September 1800 UTC 95 0.9025
10 September 0000 UTC 100 1.0000
10 September 0600 UTC 115 1.3225
10 September 1200 UTC 115 1.3225
10 September 1800 UTC 100 1.0000
11 September 0000 UTC 80 0.6400
11 September 0600 UTC 65 0.4225
11 September 1200 UTC 50 0.2500
11 September 1800 UTC 45 0.2025
12 September 0000 UTC 35 0.1225
12 September 0600 UTC 25 Low
Total     64.8925

12L.Jose[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
5 September 0600 UTC 30 0
5 September 1200 UTC 35 0.1225
5 September 1800 UTC 40 0.1600
6 September 0000 UTC 45 0.2025
6 September 0600 UTC 50 0.2500
6 September 1200 UTC 55 0.3025
6 September 1800 UTC 65 0.4225
7 September 0000 UTC 70 0.4900
7 September 0600 UTC 80 0.6400
7 September 1200 UTC 90 0.8100
7 September 1800 UTC 100 1.0000
8 September 0000 UTC 105 1.1025
8 September 0600 UTC 115 1.3225
8 September 1200 UTC 130 1.6900
8 September 1800 UTC 135 1.8225
9 September 0000 UTC 135 1.8225
9 September 0600 UTC 130 1.6900
9 September 1200 UTC 125 1.5625
9 September 1800 UTC 120 1.4400
10 September 0000 UTC 115 1.3225
10 September 0600 UTC 115 1.3225
10 September 1200 UTC 115 1.3225
10 September 1800 UTC 105 1.1025
11 September 0000 UTC 100 1.0000
11 September 0600 UTC 90 0.8100
11 September 1200 UTC 85 0.7225
11 September 1800 UTC 80 0.6400
12 September 0000 UTC 75 0.5625
12 September 0600 UTC 70 0.4900
12 September 1200 UTC 70 0.4900
12 September 1800 UTC 70 0.4900
13 September 0000 UTC 70 0.4900
13 September 0600 UTC 70 0.4900
13 September 1200 UTC 70 0.4900
13 September 1800 UTC 70 0.4900
14 September 0000 UTC 70 0.4900
14 September 0600 UTC 70 0.4900
14 September 1200 UTC 65 0.4225
14 September 1800 UTC 65 0.4225
15 September 0000 UTC 60 0.3600
15 September 0600 UTC 60 0.3600
15 September 1200 UTC 60 0.3600
15 September 1800 UTC 65 0.4225
16 September 0000 UTC 65 0.4225
16 September 0600 UTC 65 0.4225
16 September 1200 UTC 65 0.4225
16 September 1800 UTC 65 0.4225
17 September 0000 UTC 70 0.4900
17 September 0600 UTC 75 0.5625
17 September 1200 UTC 80 0.6400
17 September 1800 UTC 80 0.6400
18 September 0000 UTC 80 0.6400
18 September 0600 UTC 75 0.5625
18 September 1200 UTC 70 0.4900
18 September 1800 UTC 65 0.4225
19 September 0000 UTC 65 0.4225
19 September 0600 UTC 65 0.4225
19 September 1200 UTC 60 0.3600
19 September 1800 UTC 60 0.3600
20 September 0000 UTC 60 0.3600
20 September 0600 UTC 60 0.3600
20 September 1200 UTC 60 0.3600
20 September 1800 UTC 60 0.3600
21 September 0000 UTC 55 0.3025
21 September 0600 UTC 55 0.3025
21 September 1200 UTC 55 0.3025
21 September 1800 UTC 50 0.2500
22 September 0000 UTC 45 0.2025
22 September 0600 UTC 45 0.2025
22 September 1200 UTC 40 0.1600
22 September 1800 UTC 40 Low
Total     43.28

13L.Katia[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
5 September 1200 UTC 25 0
5 September 1800 UTC 30 0
6 September 0000 UTC 30 0
6 September 0600 UTC 35 0.1225
6 September 1200 UTC 45 0.2025
6 September 1800 UTC 65 0.4225
7 September 0000 UTC 70 0.4900
7 September 0600 UTC 70 0.4900
7 September 1200 UTC 70 0.4900
7 September 1800 UTC 70 0.4900
8 September 0000 UTC 75 0.5625
8 September 0600 UTC 80 0.6400
8 September 1200 UTC 85 0.7225
8 September 1800 UTC 90 0.8100
9 September 0000 UTC 70 0.4900
9 September 0600 UTC 35 0.1225
9 September 1200 UTC 30 0
9 September 1800 UTC -- Dissipated
Total     6.055

14L.Lee[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
14 September 1800 UTC 25 0
15 September 0000 UTC 30 0
15 September 0600 UTC 30 0
15 September 1200 UTC 30 0
15 September 1800 UTC 30 0
16 September 0000 UTC 30 0
16 September 0600 UTC 30 0
16 September 1200 UTC 35 0.1225
16 September 1800 UTC 35 0.1225
17 September 0000 UTC 35 0.1225
17 September 0600 UTC 35 0.1225
17 September 1200 UTC 30 0
17 September 1800 UTC 30 0
18 September 0000 UTC 30 0
18 September 0600 UTC 30 0
18 September 1200 UTC 30 0
18 September 1800 UTC 30 0
19 September 0000 UTC 25 0
19 September 0600 UTC 25 0
19 September 1200 UTC 30 0
19 September 1800 UTC 35 0.1225
20 September 0000 UTC 40 0.1600
20 September 0600 UTC 35 0.1225
20 September 1200 UTC 30 Disturbance
Between 1200 UTC 20 September and 1200 UTC 22 September,
the system was a tropical disturbance, not a tropical cyclone.
22 September 1200 UTC 25 0
22 September 1800 UTC 30 0
23 September 0000 UTC 35 0.1225
23 September 0600 UTC 35 0.1225
23 September 1200 UTC 40 0.1600
23 September 1800 UTC 45 0.2025
24 September 0000 UTC 50 0.2500
24 September 0600 UTC 65 0.4225
24 September 1200 UTC 75 0.5625
24 September 1800 UTC 80 0.6400
25 September 0000 UTC 85 0.7225
25 September 0600 UTC 80 0.6400
25 September 1200 UTC 80 0.6400
25 September 1800 UTC 75 0.5625
26 September 0000 UTC 80 0.6400
26 September 0600 UTC 85 0.7225
26 September 1200 UTC 90 0.8100
26 September 1800 UTC 95 0.9025
27 September 0000 UTC 95 0.9025
27 September 0600 UTC 95 0.9025
27 September 1200 UTC 100 1.0000
27 September 1800 UTC 100 1.0000
28 September 0000 UTC 95 0.9025
28 September 0600 UTC 90 0.8100
28 September 1200 UTC 85 0.7225
28 September 1800 UTC 80 0.6400
29 September 0000 UTC 75 0.5625
29 September 0600 UTC 70 0.4900
29 September 1200 UTC 65 0.4225
29 September 1800 UTC 55 0.3025
30 September 0000 UTC 50 0.2500
30 September 0600 UTC 45 Low
30 September 1200 UTC -- Dissipated
Total     17.925

15L.Maria[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
16 September 1200 UTC 30 0
16 September 1800 UTC 40 0.1600
17 September 0000 UTC 45 0.2025
17 September 0600 UTC 55 0.3025
17 September 1200 UTC 60 0.3600
17 September 1800 UTC 65 0.4225
18 September 0000 UTC 75 0.5625
18 September 0600 UTC 80 0.6400
18 September 1200 UTC 100 1.0000
18 September 1800 UTC 110 1.2100
19 September 0000 UTC 145 2.1025
19 September 0115 UTC 145 Special
19 September 0600 UTC 135 1.8225
19 September 1200 UTC 140 1.9600
19 September 1800 UTC 145 2.1025
20 September 0000 UTC 150 2.2500
20 September 0300 UTC 150 Special
20 September 0600 UTC 140 1.9600
20 September 1015 UTC 135 Special
20 September 1200 UTC 115 1.3225
20 September 1800 UTC 95 0.9025
21 September 0000 UTC 95 0.9025
21 September 0600 UTC 100 1.0000
21 September 1200 UTC 100 1.0000
21 September 1800 UTC 105 1.1025
22 September 0000 UTC 110 1.2100
22 September 0600 UTC 110 1.2100
22 September 1200 UTC 110 1.2100
22 September 1800 UTC 110 1.2100
23 September 0000 UTC 105 1.1025
23 September 0600 UTC 100 1.0000
23 September 1200 UTC 100 1.0000
23 September 1800 UTC 100 1.0000
24 September 0000 UTC 100 1.0000
24 September 0600 UTC 95 0.9025
24 September 1200 UTC 95 0.9025
24 September 1800 UTC 90 0.8100
25 September 0000 UTC 85 0.7225
25 September 0600 UTC 75 0.5625
25 September 1200 UTC 70 0.4900
25 September 1800 UTC 70 0.4900
26 September 0000 UTC 70 0.4900
26 September 0000 UTC 65 0.4225
26 September 1200 UTC 65 0.4225
26 September 1800 UTC 65 0.4225
27 September 0000 UTC 65 0.4225
27 September 0600 UTC 65 0.4225
27 September 1200 UTC 65 0.4225
27 September 1800 UTC 65 0.4225
28 September 0000 UTC 65 0.4225
28 September 0600 UTC 60 0.3600
28 September 1200 UTC 60 0.3600
28 September 1800 UTC 55 0.3025
29 September 0000 UTC 55 0.3025
29 September 0600 UTC 50 0.2500
29 September 1200 UTC 50 0.2500
29 September 1800 UTC 50 0.2500
30 September 0000 UTC 50 0.2500
30 September 0600 UTC 50 0.2500
30 September 1200 UTC 50 0.2500
30 September 1800 UTC 45 Extratrop.
Total     44.805

16L.Nate[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
4 October 1200 UTC 25 0
4 October 1800 UTC 30 0
5 October 0000 UTC 30 0
5 October 0600 UTC 35 0.1225
5 October 1200 UTC 35 0.1225
5 October 1800 UTC 35 0.1225
6 October 0000 UTC 35 0.1225
6 October 0600 UTC 40 0.1600
6 October 1200 UTC 40 0.1600
6 October 1800 UTC 45 0.2025
7 October 0000 UTC 55 0.3025
7 October 0600 UTC 70 0.4900
7 October 1200 UTC 80 0.6400
7 October 1800 UTC 80 0.6400
8 October 0000 UTC 75 0.5625
8 October 0600 UTC 60 0.3600
8 October 1200 UTC 35 0.1225
8 October 1800 UTC 25 0
9 October 0000 UTC 20 Low
Total     4.13

17L.Ophelia[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
9 October 0600 UTC 35 0.1225
9 October 1200 UTC 35 0.1225
9 October 1800 UTC 40 0.1600
10 October 0000 UTC 40 0.1600
10 October 0600 UTC 45 0.2025
10 October 1200 UTC 45 0.2025
10 October 1800 UTC 45 0.2025
11 October 0000 UTC 50 0.2500
11 October 0600 UTC 55 0.3025
11 October 1200 UTC 60 0.3600
11 October 1800 UTC 65 0.4225
12 October 0000 UTC 70 0.4900
12 October 0600 UTC 75 0.5625
12 October 1200 UTC 80 0.6400
12 October 1800 UTC 85 0.7225
13 October 0000 UTC 90 0.8100
13 October 0600 UTC 90 0.8100
13 October 1200 UTC 80 0.6400
13 October 1800 UTC 80 0.6400
14 October 0000 UTC 85 0.7225
14 October 0600 UTC 95 0.9025
14 October 1200 UTC 100 1.0000
14 October 1800 UTC 100 1.0000
15 October 0000 UTC 95 0.9025
15 October 0600 UTC 90 0.8100
15 October 1200 UTC 85 0.7225
15 October 1800 UTC 80 0.6400
16 October 0000 UTC 75 Extratrop.
Total     14.5225

18L.Philippe[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
27 October 1800 UTC 30 Extratrop.
28 October 0000 UTC 30 Extratrop.
28 October 0600 UTC 30 Extratrop.
28 October 1200 UTC 30 0
28 October 1800 UTC 35 0.1225
28 October 2200 UTC 35 Special
29 October 0000 UTC 30 0
29 October 0600 UTC -- Dissipated
Total     0.1225

19L.Rina[edit]

Date Time Maximum Sustained Winds (kt) ACE (104 kt2)
4 November 1200 UTC 25 0
4 November 1800 UTC 25 0
5 November 0000 UTC 25 0
5 November 0600 UTC 25 0
5 November 1200 UTC 30 0
5 November 1800 UTC 30 0
6 November 0000 UTC 30 0
6 November 0600 UTC 30 0
6 November 1200 UTC 30 0
6 November 1800 UTC 35 0.1225
7 November 0000 UTC 40 0.1600
7 November 0600 UTC 40 0.1600
7 November 1200 UTC 40 0.1600
7 November 1800 UTC 45 0.2025
8 November 0000 UTC 50 0.2500
8 November 0600 UTC 45 0.2025
8 November 1200 UTC 45 0.2025
8 November 1800 UTC 45 0.2025
9 November 0000 UTC 40 Extratrop.
9 November 0600 UTC 40 Extratrop.
9 November 1200 UTC -- Dissipated
Total     1.6625

Season total[edit]

StormTypeACE (104 kt2)
01L (Arlene) Best Track 0.8100
02L (Bret) Best Track 0.5225
03L (Cindy) Best Track 1.8425
05L (Don) Best Track 0.7675
06L (Emily) Best Track 0.6075
07L (Franklin) Best Track 3.6850
08L (Gert) Best Track 7.8050
09L (Harvey) Best Track 11.4425
11L (Irma) Best Track 64.8925
12L (Jose) Best Track 43.2800
13L (Katia) Best Track 6.0550
14L (Lee) Best Track 17.9250
15L (Maria) Best Track 44.8050
16L (Nate) Best Track 4.1300
17L (Ophelia) Best Track 14.5225
18L (Philippe) Best Track 0.1225
19L (Rina) Best Track 1.6625
Total224.8775

References[edit]

  1. ^ Stacy R. Stewart (January 6, 2006). Tropical Storm Zeta Discussion Number 30 (Report). National Hurricane Center. Retrieved April 20, 2017.