1976 Atlantic hurricane season

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1976 Atlantic hurricane season
1976 Atlantic hurricane season summary map.png
Season summary map
Seasonal boundaries
First system formed May 21, 1976
Last system dissipated October 28, 1976
Strongest storm
Name Belle
 • Maximum winds 120 mph (195 km/h)
(1-minute sustained)
 • Lowest pressure 957 mbar (hPa; 28.26 inHg)
Seasonal statistics
Total depressions 23
Total storms 10
Hurricanes 6
Major hurricanes
(Cat. 3+)
2
Total fatalities 72
Total damage $100 million (1976 USD)
Atlantic hurricane seasons
1974, 1975, 1976, 1977, 1978

The 1976 Atlantic hurricane season was an average Atlantic hurricane season, officially starting on June 1, 1976, and ending on November 30, dates which conventionally limit the period of each year when most tropical cyclones develop in the Atlantic Ocean. The season produced 23 tropical cyclones, of which ten developed into named storms; six became hurricanes, and two attained major hurricane status. The strongest hurricane of the season was Hurricane Belle, which reached Category 3 status on the Saffir-Simpson Hurricane Scale east of North Carolina; Belle later struck Long Island, New York, as a Category 1 hurricane, causing $100 million in damage (1976 USD) and a total of five deaths across the New England region of the United States.

The season began with Subtropical Storm One on May 21, prior to the official start of the season; the bounds of the season are from June 1 to November 30, which conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. Tropical Storm Dottie caused flooding rains in Florida that caused a total of four deaths. In early September, Hurricane Emmy caused 68 indirect deaths when a Venezuelan Air Force plane carrying a school choir crashed on a landing attempt at Lajes Air Base in the Azores during the storm.

Seasonal summary[edit]

Saffir-Simpson hurricane wind Scale

Officially, the 1976 hurricane season began on June 1 and ended November 30;[1][2] however, the first system – Subtropical Storm One – developed on May 21.[3] Conditions across the Atlantic were somewhat unfavorable for tropical cyclogenesis throughout the year, with high wind shear dominating the Caribbean Sea and Gulf of Mexico. The bulk of the season's activity was confined to August when five named storms formed.[4]

Compared the previous ten year average of storms per season, the 1976 season was considered an average one. However, the lack of activity in both the Caribbean Sea and Gulf of Mexico was considered a rare event that had only occurred one other time in 1962 since 1900.[4]

The year's activity was reflected with a cumulative accumulated cyclone energy (ACE) rating of 84,[5] classifying it as a "near-normal" season.[6] ACE is, broadly speaking, a measure of the power of the hurricane multiplied by the length of time it existed, so storms that last a long time, as well as particularly strong hurricanes, have high ACEs. It is only calculated on tropical systems at or exceeding 39 mph (63 km/h),which is tropical storm strength.[7]

Systems[edit]

Subtropical Storm One[edit]

Subtropical storm (SSHWS)
Subtropical Storm One 1976 rainfall.gif 1976 Atlantic subtropical storm 1 track.png
Duration May 21 – May 25
Peak intensity 50 mph (85 km/h) (1-min)  994 mbar (hPa)

On May 19 an upper-level trough produced widespread thunderstorms over the Gulf of Mexico. Slowly, the system organized, first to a subtropical depression on May 21, then to a subtropical storm on May 23. The storm began to move faster, and on May 23, it hit the Florida Panhandle. After moving across Georgia at a forward motion of 25 mph (40 km/h) the storm reached its peak of maximum sustained winds reaching 50 mph (85 km/h) while southeast of the Carolinas on May 24.[8] After transitioning into an extratropical cyclone, the system traveled generally northeast and ultimately dissipated on May 31 south of Iceland.[9]

Heavy rainfall was associated with the system, but little damage occurred.[8]

Tropical Storm Anna[edit]

Tropical storm (SSHWS)
AnnamiddayJuly311976.png Anna 1976 track.png
Duration July 28 – August 1
Peak intensity 45 mph (75 km/h) (1-min)  999 mbar (hPa)

A non-tropical low pressure area developed over the central Atlantic in late July. After merging the low merged with a polar trough on July 28,[10] a subtropical depression developed about 800 mi (1,300 km) east-southeast of Bermuda at 18:00 UTC. The subtropical depression moved eastward and strengthened, becoming a subtropical storm early on July 30.[3] At 02:00 UTC, the ship M.S. Pointe Allegre observed a barometric pressure of 999 mbar (29.5 inHg) and wind gusts as high as 69 mph (111 km/h).[11] The cyclone peaked with maximum sustained winds of 45 mph (75 km/h) at 12:00 UTC on July 30. Curving east-northeastward, the system also acquired tropical characteristics, with a transition to Tropical Storm Anna becoming complete about six hours later.[3] The surface ridge to the north and east caused Anna to begin curving northeastward on August 1.[11] Anna soon lost tropical characteristics and became an extratropical cyclone while situated about 110 mi (180 km) east-southeast of the Azores. The remnants moved in a circular path and approached the Azores from the north, before dissipating on August 16.[3] Gale force winds were reported in the Azores after Anna became extratropical.[11]

Hurricane Belle[edit]

Category 3 hurricane (SSHWS)
Hurricane Belle.jpg Belle 1976 track.png
Duration August 6 – August 10
Peak intensity 120 mph (195 km/h) (1-min)  957 mbar (hPa)

In late July, a tropical wave emerged off the west coast of Africa. Traversing the Atlantic Ocean for more than a week, the system eventually consolidated into a tropical depression near the Bahamas on August 6. Remaining nearly stationary for a day, the depression strengthened into a tropical storm on August 7 and a hurricane later that day as it acquired a northwest motion. Formation of an eye accompanied quick intensification and Belle reached its peak the following day with winds of 120 mph (195 km/h).[3][12] The hurricane subsequently turned north and accelerated, skirting the Outer Banks of North Carolina. Early on August 10, Belle made landfall in Long Island, New York, as a minimal hurricane before moving inland over southern New England as a tropical storm hours later. Thereafter, Belle transitioned into an extratropical cyclone before moving over Atlantic Canada.[12] The system turned east while over the north Atlantic and ultimately dissipated on August 15 to the south of Iceland.[13]

Threatening much of the East Coast of the United States, hurricane warnings were issued from Georgia to Maine. An estimated 500,000 people evacuated coastal areas accordingly. Overall, impacts from Belle were less than expected and mainly attributed to flooding across New England. Hundreds of thousands of residents lost power due to high winds. A total of 12 people lost their lives, mostly incidents indirectly related to the hurricane, and damage reached an estimated $100 million.[12][14][15] Portions of New Jersey, New York, and Vermont were later declared major disaster areas by then-President Gerald Ford.[16][17][18] Some damage also took place in New Brunswick, Canada, from heavy rain.[19]

Tropical Storm Dottie[edit]

Tropical storm (SSHWS)
Dottieaug211976.png Dottie 1976 track.png
Duration August 18 – August 21
Peak intensity 50 mph (85 km/h) (1-min)  996 mbar (hPa)

An area of low pressure in the southeastern Gulf of Mexico developed into a tropical depression early on August 18. The depression drifted east and northeastward over the next day, before beginning to accelerate on August 19. The cyclone further intensified to into Tropical Storm Dottie by 12:00 UTC.[20] Shortly thereafter, Dottie made landfall in Florida over mainland Monroe County.[3] The cyclone quickly proceeded northeastward before re-emerging into the Atlantic near Palm Beach.[20] Dottie moved northward and peaked with winds of 50 mph (85 km/h) at 06:00 UTC on August 20,[21] before subsequently weakening due to wind shear. By the time Dottie made landfall in Charleston, South Carolina early on August 21, it was barely of tropical storm intensity.[20] It deteriorated into a tropical depression on August 21 and dissipated shortly thereafter.[21] The remnant low pressure system turned southward and once again entered the Atlantic before turning westward and crossing the Florida peninsula.[22]

Dottie dropped heavy rainfall in South Florida, with a peak total of 10.86 in (276 mm).[23] However, impact from the precipitation was mainly limited to street flooding in several cities,[24] which delayed the commute of thousands of motorists during morning rush hour traffic, especially in Miami.[25] Tropical storm force wind gusts damaged a roof in Marathon, downed some trees,[24] and disrupted electricity in at least 20 neighborhoods,[26] though wind damage overall was minor.[24] In the Bahamas, a fishing boat capsized near Grand Bahama, drowning four of its occupants.[22] Rainfall was generally light in the Carolinas, though 7.78 in (198 mm) of precipitation fell in Carolina Beach, North Carolina,[20] flooding some areas of the city with up to 5 ft (1.5 m) of water.[24] However, rainfall was mostly beneficial due to a severe drought. Beach erosion occurred due to tides reaching 3.5 ft (1.1 m) normal at Atlantic Beach.[20]

Hurricane Candice[edit]

Category 1 hurricane (SSHWS)
Candiceaug221976.png Candice 1976 track.png
Duration August 18 – August 24
Peak intensity 90 mph (150 km/h) (1-min)  964 mbar (hPa)

On August 11, a cold-core low was located south of Bermuda. Over the next week, the system warmed and moved toward the surface. On August 18, it became a tropical depression, and later that day, it was named Tropical Storm Candice. Moving to the northeast, it remained weak until August 21, when it rapidly became a hurricane, located at 41ºN, 400 miles (640 km) east of Cape Cod. When Candice became a hurricane, it was one of only seven hurricanes to reach hurricane strength north of 40ºN. Soon after, Candice rapidly moved to the northeast, and it lost its identity to a cold front on August 24.

Hurricane Emmy[edit]

Category 2 hurricane (SSHWS)
Hurricane Emmy (1976).JPG Emmy 1976 track.png
Duration August 20 – September 4
Peak intensity 105 mph (165 km/h) (1-min)  974 mbar (hPa)

The tropical depression that became Hurricane Emmy developed on August 20 from a tropical wave, located about 1,000 mi (1,600 km) east of the Lesser Antilles. As it moved west-northwestward, the area strengthened to a tropical storm on August 22. On August 24, it recurved to the northeastward, and strengthened to a hurricane on August 25. Its eastward movement so early in the year is almost unprecedented, as it occurred from the rapid development of a low pressure system to its northeast. Emmy moved recurved back northwest on August 26, but again moved eastward on August 29, when it reached its peak of 105 mph (165 km/h). It gradually weakened, and on September 4, a weakened extratropical Emmy was absorbed by the larger circulation of Hurricane Frances while located over the Azores.[27]

Hurricane Emmy caused 68 deaths when a Venezuelan Air Force plane carrying a school choir crashed on a landing attempt at Lajes Air Base in the Azores during the storm.[27]

Hurricane Frances[edit]

Category 3 hurricane (SSHWS)
Hurricane Frances (1976).JPG Frances 1976 track.png
Duration August 27 – September 4
Peak intensity 115 mph (185 km/h) (1-min)  963 mbar (hPa)

Like Emmy, the tropical depression that became Hurricane Frances formed from a tropical wave on August 27, while midway between the Lesser Antilles and the coast of Africa. The next day, it became a tropical storm, and on August 30, Frances became a hurricane. As it recurved to the north and east, Frances reached its peak of 115 mph (185 km/h) on September 1. Steady weakening occurred afterwards, and Frances became extratropical on September 4.

Subtropical Storm Three[edit]

Subtropical storm (SSHWS)
1976 Atlantic subtropical storm 3 track.png 
Duration September 13 – September 17
Peak intensity 45 mph (75 km/h) (1-min)  1011 mbar (hPa)

On September 12, the interaction between mid-tropospheric low and a diffuse stationary front led to the formation of a low pressure system over central Florida. As it moved north-northeastward, it developed a circulation and became a subtropical depression on September 13. The next day it became a subtropical storm, and reached its peak of 45 mph (75 km/h) over the western tropical Atlantic, off the coast of Georgia. The storm quickly made landfall near Charleston, South Carolina, and dissipated over southern Virginia on September 17.

Hurricane Gloria[edit]

Category 2 hurricane (SSHWS)
Gloriaseptember291976.gif Gloria 1976 track.png
Duration September 26 – October 4
Peak intensity 105 mph (165 km/h) (1-min)  970 mbar (hPa)

A tropical wave became a tropical depression on September 26, located 400 miles (640 km) northeast of the Lesser Antilles. On September 27 while moving northward, it strengthened to become Tropical Storm Gloria. After moving northwestward for a day, Gloria moved northeast, strengthening to a 105 mph (165 km/h) hurricane on September 30. Steady weakening ensued, and Gloria lost its tropical characteristics on October 4.

Hurricane Holly[edit]

Category 1 hurricane (SSHWS)
Hollyoctober241976.gif Holly 1976 track.png
Duration October 22 – October 28
Peak intensity 75 mph (120 km/h) (1-min)  990 mbar (hPa)

The tropical depression that became Hurricane Holly formed from a tropical wave 200 miles (320 km) east of the northern Lesser Antilles on October 22. After a day, the storm became Tropical Storm Holly, strengthening to Hurricane Holly on October 24. Holly weakened to a tropical storm on October 25. The storm became extratropical on October 28 while located 400 miles (640 km) northwest of the Azores islands.

Other systems[edit]

Rainfall accumulations from Tropical Depression Ten in Puerto Rico

Throughout the 1976 season, there were 11 tropical depressions monitored that did not achieve gale intensity.[3]

Tropical Depression Ten in early October brought heavy rains to Puerto Rico.[28]

Seasonal effects[edit]

This is a table of all of the storms that have formed during the 1976 Atlantic hurricane season. It includes their names, duration, peak strength, areas affected, damage, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 1976 USD.

Saffir–Simpson hurricane wind scale
TD TS C1 C2 C3 C4 C5
1976 North Atlantic tropical cyclone season statistics
Storm
name
Dates active Storm category

at peak intensity

Max 1-min
wind
mph (km/h)
Min.
press.
(mbar)
Areas affected Damage
(millions USD)
Deaths


One May 21 – 25 Subtropical storm 50 (85) 994 Southeastern United States Minimal None
Depression June 7 – 9 Tropical depression 35 (55) N/A None None None
Depression June 11 – 12 Tropical depression 35 (55) N/A Florida None None
Depression July 20 – 22 Tropical depression 30 (45) N/A None None None
Depression July 23 – 24 Tropical depression 30 (45) N/A None None None
Anna July 28 – August 1 Tropical storm 45 (75) 999 Azores None None
Belle August 6 – 10 Category 3 hurricane 120 (195) 957 North Carolina, Mid-Atlantic states, New England, Atlantic Canada 101 12
Dottie August 18 – 21 Tropical storm 50 (85) 996 Southeastern United States, Bahamas Minimal 4
Candice August 18 – 24 Category 1 hurricane 90 (150) 964 None None None
Emmy August 20 – September 4 Category 2 hurricane 105 (165) 974 Lesser Antilles, Azores Minimal 68
Frances August 27 – September 4 Category 3 hurricane 115 (185) 963 Azores None None
Depression September 4 – 6 Tropical depression 30 (45) N/A None None None
Depression September 5 – 7 Tropical depression 30 (45) N/A None None None
Three September 13 – 17 Subtropical storm 50 (85) 1011 Southeastern United States None None
Depression September 20 – 27 Tropical depression 35 (55) N/A None None None
Depression September 22 – 24 Tropical depression 30 (45) N/A None None None
Gloria September 26 – October 4 Category 2 hurricane 105 (165) 970 None None None
Depression September 26 – 28 Tropical depression 35 (55) N/A None None None
Ten October 3 – 12 Tropical depression 35 (55) N/A Lesser Antilles, Hispaniola, Puerto Rico None None
Depression October 12 – 15 Tropical depression 35 (55) N/A None None None
Holly October 22 – 28 Category 1 hurricane 75 (120) 990 None None None
Season Aggregates
21 systems May 21 – October 29   120 (195) 957 101 84

Storm names[edit]

The following names were used for named storms that formed in the Atlantic basin in 1976.[1] No storms were retired following the season; however, an overhaul of the naming system in 1979 to include male names resulted in the majority of this list being discarded.[29]

  • Holly
  • Inga (unused)
  • Jill (unused)
  • Kay (unused)
  • Lilias (unused)
  • Maria (unused)
  • Nola (unused)
  • Orpha (unused)
  • Pamela (unused)
  • Ruth (unused)
  • Shirley (unused)
  • Trixie (unused)
  • Vilda (unused)
  • Wynne (unused)

See also[edit]

References[edit]

  1. ^ a b "Hurricane Unit Ready for 'Crying Wolf' Charges". The Danville Register. Miami, Florida. Associated Press. May 23, 1976. p. 8B.   – via Newspapers.com (subscription required)
  2. ^ "Hurricane Season Ends". The Naples Daily News. Miami, Florida. United Press International. November 30, 1976. p. 9A.   – via Newspapers.com (subscription required)
  3. ^ a b c d e f g National Hurricane Center; Hurricane Research Division (April 11, 2017). "Atlantic hurricane best track (HURDAT version 2)". United States National Oceanic and Atmospheric Administration. Retrieved July 21, 2017. 
  4. ^ a b Miles B. Lawrence (April 1977). "Atlantic Hurricane Season of 1976: General Summary" (PDF). Monthly Weather Review. American Meteorological Society. 105 (4): 497–498. Bibcode:1977MWRv..105..497L. doi:10.1175/1520-0493(1977)105<0497:AHSO>2.0.CO;2. Retrieved June 17, 2015. 
  5. ^ "Atlantic basin Comparison of Original and Revised HURDAT". Hurricane Research Division. National Oceanic and Atmospheric Administration. March 2011. Retrieved June 17, 2015. 
  6. ^ "Background Information: The North Atlantic Hurricane Season". Climate Prediction Center. National Oceanic and Atmospheric Administration. August 7, 2014. Retrieved June 17, 2015. 
  7. ^ David Levinson (August 20, 2008). "2005 Atlantic Ocean Tropical Cyclones". National Climatic Data Center. Retrieved June 17, 2015. 
  8. ^ a b Miles B. Lawrence (April 1977). "Atlantic Hurricane Season of 1976: Subtropical storm no. 1, 21-25 May" (PDF). Monthly Weather Review. American Meteorological Society. 105 (4): 507. Bibcode:1977MWRv..105..497L. doi:10.1175/1520-0493(1977)105<0497:AHSO>2.0.CO;2. Retrieved June 17, 2015. 
  9. ^ Elwyn E. Wilson, ed. (November 1976). "Marine Weather Review: Principal Tracks of Centers of Cyclones at Sea Level, North Atlantic May 1976". Mariners Weather Log. Washington, D.C. National Oceanic and Atmospheric Administration, Environmental Data Service. 20 (6): 354. 
  10. ^ A. James Wagner (October 1976). "Weather and Circulation of July 1976". Monthly Weather Review. Washington, D.C.: National Weather Service. 104 (10): 1340. Bibcode:1976MWRv..104.1333W. doi:10.1175/1520-0493(1976)104<1333:WACOJ>2.0.CO;2. Retrieved June 13, 2017. 
  11. ^ a b c Miles B. Lawrence (April 1977). "Atlantic Hurricane Season of 1976: Subtropical storm no. 1, 21-25 May" (PDF). Monthly Weather Review. American Meteorological Society. 105 (4): 499-500. Bibcode:1977MWRv..105..497L. doi:10.1175/1520-0493(1977)105<0497:AHSO>2.0.CO;2. Retrieved June 13, 2017. 
  12. ^ a b c Miles B. Lawrence (April 1977). "Atlantic Hurricane Season of 1976: Hurricane Belle, 6-10 August" (PDF). Monthly Weather Review. American Meteorological Society. 105 (4): 500–504. Bibcode:1977MWRv..105..497L. doi:10.1175/1520-0493(1977)105<0497:AHSO>2.0.CO;2. Retrieved June 4, 2015. 
  13. ^ Elwyn E. Wilson, ed. (January 1977). "Marine Weather Review: Principal Tracks of Centers of Cyclones at Sea Level, North Atlantic August 1976". Mariners Weather Log. Washington, D.C. National Oceanic and Atmospheric Administration, Environmental Data Service. 21 (1): 37. 
  14. ^ "Hurricane Belle at Long Island Beach". Pittsburgh Post Gazette. New York, New York. Associated Press. August 10, 1976. pp. 1, 3. Retrieved June 4, 2015. 
  15. ^ "Belle leaves victims". The Portsmouth Herald. Vernon, Connecticut. Associated Press. August 16, 1976. p. 1.   – via Newspapers.com (subscription required)
  16. ^ "Designated Areas: New Jersey Severe Storms, High Winds, Flooding". Federal Emergency Management Agency. Government of the United States. August 21, 1976. Retrieved June 6, 2015. 
  17. ^ "Designated Areas: New York Hurricane Belle". Federal Emergency Management Agency. Government of the United States. September 3, 1976. Retrieved June 6, 2015. 
  18. ^ "Hurricane Belle leaves four dead". The Bryan Times. August 11, 1976. p. 11. Retrieved June 5, 2015. 
  19. ^ "Rain damage". The Portsmouth Herald. Fredericton, Canada. Associated Press. August 17, 1976. p. 6.   – via Newspapers.com (subscription required)
  20. ^ a b c d e "Tropical Storm Dottie Preliminary Report Page 1". National Hurricane Center. Retrieved 2009-07-05. 
  21. ^ a b "Tropical Storm Dottie Preliminary Report Page 3". National Hurricane Center. Retrieved 2009-07-05. 
  22. ^ a b "Tropical Storm Dottie Preliminary Report Page 2". National Hurricane Center. Retrieved 2009-07-05. 
  23. ^ Roth, David M. (April 29, 2015). "Tropical Cyclone Point Maxima". Tropical Cyclone Rainfall Data. United States Weather Prediction Center. Retrieved May 8, 2016. 
  24. ^ a b c d "Storm Data and Unusual Weather Phenomena" (PDF). Storm Data. Asheville, North Carolina: National Climatic Data Center. 18 (8). August 1976. ISSN 0039-1972. Retrieved July 5, 2017. 
  25. ^ John M. Purnell (August 20, 1976). "Dottie Pays PB County a Damp Visit". The Palm Beach Post. p. A1. Retrieved June 14, 2017 – via Newspapers.com.  free to read
  26. ^ "Dottie: Storm Has Her Eye On Carolinas". The Evening Independent. Miami, Florida. Associated Press. August 20, 1976. p. 2. Retrieved July 5, 2017. 
  27. ^ a b Miles B. Lawrence (April 1977). "Atlantic Hurricane Season of 1976: Hurricane Emmy, 20 August-4 September" (PDF). Monthly Weather Review. American Meteorological Society. 105 (4): 505–506. Bibcode:1977MWRv..105..497L. doi:10.1175/1520-0493(1977)105<0497:AHSO>2.0.CO;2. Retrieved June 17, 2015. 
  28. ^ David M. Roth (2015). "Tropical Depression Ten - October 8-13, 1976". Weather Prediction Center. National Oceanic and Atmospheric Administration. Retrieved June 17, 2015. 
  29. ^ "Tropical Cyclone Naming History and Retired Names". National Hurricane Center. Miami, Florida: National Oceanic and Atmospheric Administration. April 17, 2015. Retrieved June 17, 2015. 

External links[edit]