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2009 Pacific hurricane season

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Template:Infobox hurricane season active The 2009 Pacific hurricane season is an ongoing event in the annual cycle of tropical cyclone formation. The season officially started on May 15 in the eastern Pacific, and on June 1 for the central Pacific, and will end on November 30, 2009. For the first time in ten years, no tropical depressions formed during the month of May. This inactivity continued into the early part of June and was the least active since 1994.[1] The first named storm of the season did not develop until June 21, marking the second latest start to a Pacific hurricane season since reliable records began.

Seasonal forecasts

Predictions of tropical activity in the 2009 season
for the Eastern North Pacific
Source Date Named
storms 		Hurricanes Major
hurricanes
NOAA Average[2] 15.3 8.8 4.2
NOAA 1995-2008 average[2] 14 7 3
NOAA[2] 21 May 2009 13 – 18 6 – 10 2 – 5
Record high activity 27 16 9
Record low activity 8 4 0
––––––––––––––––––––––––––––––––––––––
Actual activity 2 1 0

On May 21, 2009, NOAA released their forecast for the 2009 Eastern Pacific and Central Pacific hurricane seasons. They predicted a below-normal level of activity in the Eastern Pacific, with 13 to 18 named storms, of which 6 to 10 were expected to become hurricanes, and 2 to 5 expected to become major hurricanes. The forecast was based on the dissipation of a La Niña in April 2009. Sea surface temperatures were near normal around the equator makes the season a ENSO-neutral. Additionally, an El Niño was forecast to develop during the latter part of the season. Depending on the intensity of the El Niño, forecasters were unsure of whether or not it would have an effect on the overall activity in the basin. However, due to the low-activity cycle that began in 1995, the El Niño would likely only bring the season to near-normal or slightly above normal.[2]

The Central Pacific basin was also expected to be slightly below average, with three to five tropical cyclones expected to form or cross into the area.[3]

Season summary

Track map of all storms thus far in the season

Since 1999, eastern Pacific hurricane seasons featured one or two May named storms. The ten year span of May named storms marked the longest occurrence of this event. In 2009, it became the first time since 1999 that no named storms formed within the month of May. However, on average, a May storm forms every other year, making the lack of May activity in 2009 normal.[1] The first tropical cyclone of the year was a short-lived tropical depression that impacted Sinaloa, Mexico, becoming the only June tropical system to do so on record. On June 23, the NHC declared that Tropical Depression Two-E had intensified into Tropical Storm Andres; this marks the second latest date that the first named storm of a season developed since 1969 when Tropical Storm Ava developed on July 1 of that year.[4]

Storms

See also: Timeline of the 2009 Pacific hurricane season

Tropical Depression One-E

Tropical depression (SSHWS)
 
DurationJune 18 – June 20
Peak intensity35 mph (55 km/h) (1-min);
1001 mbar (hPa)
Main article: Tropical Depression One-E (2009)

An area of disturbed weather persisted off the southwest Mexican coast on June 15.[5] It moved slowly west-northwestward, developing an area of low pressure as it became better organized.[6] The system continued to organize, and on June 17 the National Hurricane Center (NHC) noted the likelihood for tropical cyclogenesis, although at the time the circulation was not well-defined.[7] Subsequently it organized further,[8] and early on June 18, the NHC initiated advisories on the first tropical depression of the 2009 season about 370 miles (595 km) south-southwest of Mazatlán, Mexico.[9] Deep convection persisted near the southern portion of the depression; however, the northern portion of the depression was partially devoid of convective activity. A mid to upper-level trough situated over the Baja California Peninsula led to a northward movement of the depression.[8] The system remained disorganized most of its lifetime due to shear. One-E dissipated as it made landfall early on June 20.[10]

On June 19, 2.44 in (62 mm) of rain fell in Mazatlán, near where the remnants of the depression moved ashore.[11] High winds in Mazatlán knocked down several trees, cutting power to numerous residents. Heavy rains also triggered street flooding throughout the city.[12] Landslides along major roadways caused several accidents, one involving a bus that was damaged by rocks.[13]

Hurricane Andres

Main article: Hurricane Andres (2009)
Category 1 hurricane (SSHWS)
 
DurationJune 21 – June 24
Peak intensity75 mph (120 km/h) (1-min);
987 mbar (hPa)

Andres originated from a broad area of disturbed weather associated with remnant of tropical depression One-E persisted off the southern coast of Mexico after Tropical Depression One-E formed, which generated shower and thunderstorm activity. At this time, the National Hurricane Center remarked upon the possibility for tropical cyclone formation.[14] On June 20, associated convective activity began to organize.[15] The system continued to develop, though by early on June 21, the low-level center had not yet become well-defined.[16] Later that day, the NHC declared that Tropical Depression Two-E had developed near the southern coast of Mexico.[17] Early the next day, the depression strengthened to the first tropical storm of the 2009 season and was named Andres. Andres strengthened in a steady stage eventually becoming a hurricane around 2 p.m. PDT on June 23, although it was possible that Andres became a hurricane earlier that day. [18] It also brought gale force winds to the Mexican coast. The system then weakened back to a tropical storm shortly after. High shear and dry air weakened Andres rapidly to a depression on the 24th, with the NHC issuing their last advisory that day.

Rough seas produced by the storm led to the drowning of a fisherman off the coast of Mexico. Flooding caused by Andres resulted in the evacuation of 200 people and 14 shelters were opened to accommodate the evacuees.[19]

Tropical Storm Blanca

Tropical storm (SSHWS)
 
DurationJuly 6 – July 9
Peak intensity50 mph (85 km/h) (1-min);
998 mbar (hPa)

On July 6, an area of disturbed weather situated approximately 420 mi (675 km) south-southwest of Baja California, Mexico was designated as Tropical Storm Blanca by the NHC, skipping tropical depression status.[20] The newly upgraded storm featured deep convection and a possible eye-feature around the center of circulation. Favorable conditions allowed the storm to intensify later that day.[21] Large convective banding features developed around the central dense overcast during the morning of July 6, as winds around the center of the storm increased to 45 mph (75 km/h). All forecast models agreed on further intensification of the storm; however, some models indicated rapid intensification before the storm moved into a less favorable environment.[22] However, this didn't happen, and the system moved into colder waters, weakening to a tropical depression on the 8th, before finally becoming a remnant low on the 9th and moving Northwestward.

Tropical Depression Four-E

Tropical Depression Four-E
Current storm status
Tropical depression (1-min mean)
File:Ep200904 sat.jpg
Satellite image
Forecast map
As of:8 a.m. PDT (1500 UTC) July 10
Location:10.4°N 112.8°W ± 30 nm
About 885 mi (1425 km) SSW of Baja California, Mexico
Sustained winds:30 knots | 35 mph | 65 km/h (1-min mean)
gusting to 40 knots | 45 mph | 85 km/h
Pressure:1007 mbar (hPa) | 29.74 inHg
Movement:W at 10 kt |12 mph | 20 km/h
See more detailed information.

On July 9, showers and thunderstorms associated with an area of disturbed weather located about 900 miles south of the Southern Tip of Baja California became more concentrated around a developing low level centre. In the early hours of July 10th ,the system was designated as Tropical Depression Four-E.

Timeline of recent events

See also: Timeline of the 2009 Pacific hurricane season
2009 Pacific hurricane season#Tropical Depression Four-E2009 Pacific hurricane season#Tropical Storm BlancaHurricane Andres (2009)Tropical Depression One-E (2009)Saffir-Simpson Hurricane Scale

July

July 6
  • 1230 UTC (5:30 a.m. PDT) - Tropical Storm Blanca forms about 420 mi (675 km) south-southwest of the southern tip of Baja California.[23]
July 8
  • 0900 UTC (2:00 a.m. PDT) - The NHC downgrades Blanca to a tropical depression.
July 9
  • 0300 UTC (8:00 p.m. July 8 PDT) - NHC issues its last advisory on the remnants of Tropical Storm Blanca.
July 10
  • 0900 UTC (2 a.m. PDT) - Tropical Depression Four-E forms about 900 mi (1445 km) south of the southern tip of Baja California.

Storm names

The following names will be used for named storms that form in East Pacific in 2009. Retired names, if any, will be announced by the World Meteorological Organization in the spring of 2010. The names not retired from this list will be used again in the 2015 season. Names that were not used are marked in gray, and names in bold are storms currently active. This is the same list used in the 2003 season. The first Central Pacific name to be used will be Lana, if a tropical cyclone forms there.

  • Andres
  • Blanca
  • Carlos (unused)
  • Dolores (unused)
  • Enrique (unused)
  • Felicia (unused)
  • Guillermo (unused)
  • Hilda (unused)
  • Ignacio (unused)
  • Jimena (unused)
  • Kevin (unused)
  • Linda (unused)
  • Marty (unused)
  • Nora (unused)
  • Olaf (unused)
  • Patricia (unused)
  • Rick (unused)
  • Sandra (unused)
  • Terry (unused)
  • Vivian (unused)
  • Waldo (unused)
  • Xina (unused)
  • York (unused)
  • Zelda (unused)

Season Effects

This is a table of the storms in 2009 and their landfall(s), if any; the table does not include storms that did not make landfall, which is defined as the center of the storm moving over a landmass. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but are still storm-related. Damage and deaths include totals while the storm was extratropical or a wave or low.

Saffir–Simpson scale
TD TS C1 C2 C3 C4 C5

Template:TC stats table start

|- style="background:#6EC1EA" ! align=left | One-E | style="text-align:left;background:#FFFFFF; color:black" data-sort-value="June 18 , 2017" | June 18 – June 20 | style="text-align:center;" data-sort-value="5"|Tropical depression | style="text-align:center;" | 35 | style="text-align:center;" | 1001 | style="text-align:left;background:#FFFFFF; color:black" | {{{areas}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{damage}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{deaths}}} | style="text-align:right;background:#FFFFFF; color:black" data-sort-value="0"| Template:TC stats first landfall Template:TC stats impact

|- style="background:#FFFFD9" ! align=left | Andres | style="text-align:left;background:#FFFFFF; color:black" data-sort-value="June 21 , 2017" | June 21 – June 24 | style="text-align:center;" data-sort-value="10"|Category 1 hurricane | style="text-align:center;" | 75 | style="text-align:center;" | 987 | style="text-align:left;background:#FFFFFF; color:black" | {{{areas}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{damage}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{deaths}}} | style="text-align:right;background:#FFFFFF; color:black" data-sort-value="0"| Template:TC stats first landfall Template:TC stats impact

|- style="background:#4DFFFF" ! align=left | Blanca | style="text-align:left;background:#FFFFFF; color:black" data-sort-value="July 6 – July 9" | July 6 – July 9 | style="text-align:center;" data-sort-value="8"|Tropical storm | style="text-align:center;" | 50 | style="text-align:center;" | 998 | style="text-align:left;background:#FFFFFF; color:black" | {{{areas}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{damage}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{deaths}}} | style="text-align:right;background:#FFFFFF; color:black" data-sort-value="0"| Template:TC stats no landfall Template:TC stats impact

|- style="background:#6EC1EA" ! align=left | Four-E | style="text-align:left;background:#FFFFFF; color:black" data-sort-value="July 10 , 2017" | July 10 – Still Active | style="text-align:center;" data-sort-value="5"|Tropical depression | style="text-align:center;" | 35 | style="text-align:center;" | 1007 | style="text-align:left;background:#FFFFFF; color:black" | {{{areas}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{damage}}} | style="text-align:center;background:#FFFFFF; color:black" data-sort-value=""| {{{deaths}}} | style="text-align:right;background:#FFFFFF; color:black" data-sort-value="0"| Template:TC stats no landfall Template:TC stats impact Template:TC stats table end

See also

Template:Tcportal

References

  1. ^ a b Blake (June 1, 2009). "Eastern Pacific Tropical Weather Summary for May 2009". National Hurricane Center. Retrieved June 11, 2009.
  2. ^ a b c d Climate Prediction Center, NOAA (May 21, 2009). "NOAA: 2008 Tropical Eastern North Pacific Hurricane Outlook". National Oceanic and Atmospheric Administration. Retrieved June 11, 2009.
  3. ^ Central Pacific Hurricane Center, NOAA (May 20, 2009). "NOAA Predicts Near to Below Normal Central Pacific Hurricane Season" (PDF). National Oceanic and Atmospheric Administration. Retrieved June 11, 2009.
  4. ^ National Hurricane Center Hurricane Research Division (2009). "Eastern Pacific HURDAT tracks, 1949-2008". National Oceanic and Atmospheric Administration. Retrieved June 11, 2009.
  5. ^ Daniel Brown (2009-06-15). "Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-18.
  6. ^ Kimberlain/Pasch (2009-06-16). "Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-18.
  7. ^ Kimberlain/Pasch (2009-06-17). "Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-18.
  8. ^ a b Brennan and Berg (June 18, 2009). "Tropical Depression One-E Discussion One". National Hurricane Center. Retrieved June 18, 2009.
  9. ^ Brennan and Berg (June 18, 2009). "Tropical Depression One-E Public Advisory One". National Hurricane Center. Retrieved June 18, 2009.
  10. ^ Beven (June 19, 2009). "Tropical Depression One-E Advisory Seven (Final)". National Hurricane Center. Retrieved June 19, 2009.
  11. ^ Template:Es icon "Weather History for Mazatlán, Mexico". Weather Underground. June 19, 2009. Retrieved June 19, 2009.
  12. ^ Template:Es icon Staff Writer (June 19, 2009). "Vigilan autoridades de Sinaloa comportamiento de depresión tropical". SDP Noticias. Retrieved June 19, 2009.
  13. ^ Template:Es icon Staff Writer (June 19, 2009). "Causa estragos la depresión tropical en Mazatlán". Noroeste. Retrieved June 19, 2009. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  14. ^ Beven (June 19, 2009). "June 19 Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-22.
  15. ^ Beven (June 10, 2009). "June 20 Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-22.
  16. ^ Berg/Pasch (June 10, 2009). "June 22 Tropical Weather Outlook". National Hurricane Center. Retrieved 2009-06-22.
  17. ^ "Tropical Depression Two-E Archive". United States Naval Research Laboratory. June 21, 2009. Retrieved June 21, 2009.
  18. ^ "Hurricane Andres Forecast Discussion #9". National Hurricane Center. June 23, 2009. Retrieved June 23, 2009.
  19. ^ Associated Press (June 23, 2009). "Tropical Storm Andres brushes Mexico 1 killed". Southern Ledger. Retrieved June 23, 2009. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  20. ^ Kimberlain and Brown (July 6, 2009). "Tropical Storm Blanca Public Advisory One". National Hurricane Center. Retrieved July 6, 2009.
  21. ^ Kimberlain and Brown (July 6, 2009). "Tropical Storm Blanca Discussion One". National Hurricane Center. Retrieved July 6, 2009.
  22. ^ Kimberlain and Brown (July 6, 2009). "Tropical Storm Blanca Discussion Two". National Hurricane Center. Retrieved July 6, 2009.
  23. ^ Kimberlain and Brown (June 6, 2009). "Tropical Storm Blanca Advisory One". National Hurricane Center. Retrieved July 6, 2009.

Template:2000-2009 Pacific hurricane seasons

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