1984 Atlantic hurricane season

Infobox hurricane season
Basin=Atl
Year=1984
Track=1984 Atlantic hurricane season map.png First storm formed=June 11, 1984
Last storm dissipated=December 24, 1984
Strongest storm name=Diana
Strongest storm pressure=949
Strongest storm winds=115
Average wind speed=1
Total depressions=17
Total storms=13
Total hurricanes=5
Total intense=1
Fatalities=35
Da

Inflated=1
five seasons=1982, 1983, 1984, 1985, 1986 The 1984 Atlantic hurricane season officially began on June 1, 1984, and lasted until November 30, 1984. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. The 1984 season was an active one in terms of named storms, but most of them were weak and stayed at sea.

The most damaging storm was Hurricane Diana, which caused $65.5 million (1984 dollars) in damage in North Carolina. Diana was the first hurricane to strike a nuclear power plant, but no damage was reported; it was also the first major hurricane to strike the U.S. East Coast in nearly 20 years. Also of note was Hurricane Lili, which lasted well after the official end of the season. It was downgraded from a named storm on December 24.

torms

Tropical Depression One

Infobox Hurricane Small
Basin=Atl


Formed=June 11
Dissipated=June 14
1-min winds=30
Prepressure=≤
Pressure=1015By June 11, an upper level low caused thunderstorm development off the Florida coast, which caused the formation of a tropical depression. Moving westward, the depression moved into St. Augustine, causing a total of convert|5.02|in|mm of rainfall at Jacksonville Beach, Florida as its main thunderstorm activity was concentrated north of the center. It dissipated as a tropical cyclone on June 14 while moving through the Florida panhandle. [http://nl.newsbank.com/nl-search/we/Archives?p_product=DN&s_site=philly&p_multi=PI DN&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB296A509DA6C8E&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM TROPICAL DEPRESSION HITS FLORIDA COAST] ] [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB35FD3513DC90B&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM HARBINGER OF HURRICANE FADING FAST] ] The small remnant low continued moving westward inland of the Gulf coast, causing occasional redevelopment of thunderstorm activity as the system moved into Louisiana, before both the thunderstorm activity and low pressure area dissipated by June 17. [David M. Roth. [http://www.hpc.ncep.noaa.gov/tropical/rain/td1of1984.html Tropical Depression One - June 12-17, 1984.] Retrieved on 2008-04-24.] [NOAA. [http://docs.lib.noaa.gov/rescue/dwm/1984/19840611-19840617.djvu Daily Weather Maps: June 11-17, 1984.] Retrieved on 2008-04-24.]

Tropical Depression Two

Infobox Hurricane Small
Basin=Atl


Formed=June 18
Dissipated=June 20
1-min winds=30
Pressure=1000A tropical depression formed on June 19 in the Gulf of Mexico east of Brownsville, Texas. [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB35FDA26874527&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM NEW TROPICAL DEPRESSION FORMS IN GULF OF MEXICO] ]

Tropical Depression Three

Infobox Hurricane Small
Basin=Atl


Formed=July 25
Dissipated=July 28
1-min winds=30
Pressure=1000A tropical depression formed on July 25 [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB3600CF76ABDB2&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM POTENTIAL TROPICAL STORM MONITORED] ] and produced rainfall up to six inches in Barbados on July 26. [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB3600F2CEE7ABB&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM Search Results ] ] The depression dissipated on July 28. Two commercial fisherman were reported missing near St. Lucia. [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB3601509C9B4B5&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM STORM WEAKENS IN CARIBBEAN TWO FISHERMEN MISSING AFTER IGNORING WARNINGS] ]

ubtropical Storm One

Infobox Hurricane Small
Basin=Atl


Track=1984 Atlantic subtropical storm 1 track.pngFormed=August 18
Dissipated=August 21
1-min winds=50
Pressure=1000A weak front generated a low pressure system that organized into a subtropical depression north of Bermuda on August 18. The depression headed northeast and strengthened to a subtropical storm. It is believed to have merged with a front on August 21. The history of Subtropical Storm One is not entirely certain, as satellite images were largely unavailable due to a failure of the VISSR unit on GOES EAST (then GOES-5).

Tropical Storm Arthur

Infobox Hurricane Small
Basin=Atl


Track=Arthur 1984 track.pngFormed=August 28
Dissipated=September 6
1-min winds=45
Pressure=1004The 1984 season started late, with its first named storm forming on August 28. Arthur formed east of the Windward Islands and tracked generally northwest. It was downgraded to a depression on September 1, and dissipated several days later. Arthur was a minimal tropical storm, and caused no significant weather on land.

Tropical Storm Bertha

Infobox Hurricane Small
Basin=Atl


Track=Bertha 1984 track.pngFormed=August 30
Dissipated=September 4
1-min winds=35
Pressure=1007Bertha was a short-lived tropical storm that formed in the mid-Atlantic on August 31, in close proxmitity to Arthur. The storm took a clockwise curving path before merging with a cold front on September 4. Bertha never approached land and caused no reported damage.

Tropical Storm Cesar

Infobox Hurricane Small
Basin=Atl


Track=Cesar 1984 track.pngFormed=August 31
Dissipated=September 2
1-min winds=50
Pressure=997A second storm formed on August 31 as a non-tropical low strengthened into Tropical Storm Cesar off the East Coast of the United States. Cesar travelled northeast and strengthened gradually until it became extratropical and merged with another system off the coast of Newfoundland on September 2.

Hurricane Diana

Infobox Hurricane Small
Basin=Atl

---

Track=Diana 1984 track.pngFormed=September 8
Dissipated=September 16
1-min winds=115
Pressure=949On September 8, a non-tropical low organized into Tropical Storm Diana north of the Bahamas. Diana proved difficult for meteorologists to forecast, initially moving westward towards Cape Canaveral, but then turned to the north and paralleled the coastline. On September 11, the storm reached hurricane strength, and continued to intensify to a Category 4 hurricane. Diana moved north-northeast, and performed a small anti-cyclonic loop before striking near Cape Fear as a minimal Category 2 hurricane on the 13th. A weakened Tropical Storm Diana curved back out to sea and headed northeast until it became extratropical near Newfoundland on September 16.

Damage estimates were set at $65.5 million dollars. Three indirect deaths were associated with Diana. Diana was the first hurricane to strike a nuclear power plant — the Carolina Power and Light Brunswick Nuclear Power Plant recorded sustained hurricane force winds, but there was no damage to the facility.

Tropical Storm Edouard

Infobox Hurricane Small
Basin=Atl


Track=Edouard 1984 track.pngFormed=September 14
Dissipated=September 15
1-min winds=55
Pressure=998The origins of Tropical Storm Edouard are unclear, but an area of persistent organized storms formed in the Bay of Campeche, which strengthened into a tropical storm on September 14. Edouard rapidly intensified, with wind speeds reaching 65 mph (100 km/h) in 18 hours. Following its strengthening, Edouard dissipated even more quickly, degenerating into an area of thunderstorms the next day. The remnants of Edouard moved over land near the port of Veracruz.

Tropical Storm Fran

Infobox Hurricane Small
Basin=Atl


Track=Fran 1984 track.pngFormed=September 15
Dissipated=September 20
1-min winds=55
Pressure=994Fran formed near Cape Verde on September 15, and travelled generally west-northwest. It dissipated on September 20. No damage was reported, although weather stations in Cape Verde reported winds just under tropical storm force. 31 people were reported dead on the islands. [Edward N. Rappaport and Jose Fernandez-Partagas. [http://www.nhc.noaa.gov/pastdeadlyapp1.shtml The Deadliest Atlantic Tropical Cyclones, 1492-1996.] Retrieved on 2008-04-24.]

Tropical Storm Gustav

Infobox Hurricane Small
Basin=Atl


Track=Gustav 1984 track.pngFormed=September 16
Dissipated=September 19
1-min winds=45
Pressure=1006Gustav spent most of its life as a well-organized tropical depression, which formed on September 16 in the open Atlantic south of Bermuda. The depression moved north, and its motion stalled over Bermuda on the 17th. A day later, the depression had strengthened to a tropical storm and was named Gustav. Tropical Storm Gustav headed northeast until it was absorbed by a front on September 19.

Tropical Depression Eleven

Infobox Hurricane Small
Basin=Atl


Formed=September 17
Dissipated=September 18
1-min winds=30A tropical depression formed on September 17 and dissipated the next day after passing over Bermuda. [http://nl.newsbank.com/nl-search/we/Archives?p_product=MH&s_site=miami&p_multi=MH&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0EB3607B6BD2A698&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM ONE DEPRESSION FALTERS] ]

Hurricane Hortense

Infobox Hurricane Small
Basin=Atl


Track=Hortense 1984 track.pngFormed=September 23
Dissipated=October 2
1-min winds=65
Pressure=993On September 23, a subtropical storm formed southeast of Bermuda. The storm acquired tropical characteristics and was named Hortense the next day. Hortense followed a winding path for the next several days, and briefly became a hurricane. On September 30, the center of the tropical storm passed near Bermuda. The storm merged with an extratropical low on October 2. The extratropical low that merged with Hortense later caused severe damage and six deaths in France and Spain. [http://www.atl.ec.gc.ca/weather/hurricane/storm84.html]

Tropical Storm Isidore

Infobox Hurricane Small
Basin=Atl


Track=Isidore 1984 track.pngFormed=September 25
Dissipated=October 1
1-min winds=50
Pressure=999A tropical depression formed on September 25 off the southeastern Bahamas. The depression headed west, and was upgraded to a tropical storm in the central Bahamas on the 26th. It struck the US coast near Jupiter, Florida. Retaining tropical storm strength, Isidore curved to the northeast, emerging over water near Jacksonville, Florida. Isidore continued northeast until it was absorbed by a front on October 1.

Storm damages in the US were estimated at $750,000 dollars (1984 US dollars). One death from electrocution was reported.

Hurricane Josephine

Infobox Hurricane Small
Basin=Atl


Track=Josephine 1984 track.pngFormed=October 7
Dissipated=October 18
1-min winds=90
Pressure=965Josephine became a named storm on October 8 while northeast of Puerto Rico. It briefly moved west then turned almost due north. While it stayed well away from the U.S. coast, Josephine was a large storm and sustained tropical storm winds were measured at the Diamond Shoals of Cape Hatteras. When it passed 36°N latitude (roughly level with Norfolk, Virginia, Josephine curved to the southeast, then back to the northeast. It continued on this path until it made a cyclonic loop beginning on October 17 while becoming extratropical. The storm lost its identity on the 21st.

The hurricane caused wave damage to coastal areas, but primarily posed a threat to the shipping lanes of the North Atlantic.

Hurricane Klaus

Infobox Hurricane Small
Basin=Atl


Track=Klaus 1984 track.pngFormed=November 5
Dissipated=November 13
1-min winds=80
Pressure=971Klaus formed as a tropical depression in the central Caribbean Sea on November 6. The depression moved north over Puerto Rico later that day as it reached tropical storm strength. On the 7th, Klaus reached hurricane strength. The hurricane headed generally northeast until it began losing its tropical characteristics on November 12.

Damage from the storm totaled to $152 million (1984 USD), and the hurricane killed two on Dominica.

Hurricane Lili

Infobox Hurricane Small
Basin=Atl


Track=Lili 1984 track.pngFormed=December 12
Dissipated=December 24
1-min winds=70
Pressure=980A rare December hurricane, Lili began as a subtropical storm in the central North Atlantic on December 12. The storm looped over open water for more than a week before acquiring tropical characteristics and being classified as a hurricane. At this point, Hurricane Lili was headed southwest toward the Caribbean. It continued on this path but weakened to a tropical depression as it approached Hispaniola. By the time of landfall in Haiti on December 24, it had degenerated to an area of thunderstorms.

Accumulated Cyclone Energy (ACE) Rating

The table on the right shows the ACE for each storm in the season. The ACE is, broadly speaking, a measure of the power of the hurricane multiplied by the length of time it existed for, so hurricanes that lasted a long time have higher ACEs.

torm names

The following names were used for named storms that formed in the north Atlantic in 1984. No names were retired, so it was used again in the 1990 season. This is the first time these names were used since the post-1978 naming change, except for Bertha and Fran which were previously used in 1957 and 1973. Names that were not assigned are marked in tcname unused.

Retirement

The World Meteorological Organization did not retire any names used in the 1984 season.

ee also

*List of Atlantic hurricanes
*List of Atlantic hurricane seasons
*1984 Pacific hurricane season
*1984 Pacific typhoon season
*1984 North Indian Ocean cyclone season
*Southern Hemisphere tropical cyclone seasons: 1983–84, 1984–85

References

External links

* [http://www.aoml.noaa.gov/general/lib/lib1/nhclib/mwreviews/1984.pdf Monthly Weather Review]
* [http://www.hpc.ncep.noaa.gov/tropical/rain/1984.html U.S. Rainfall information for tropical cyclones from 1984]