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Draft:Timeline of the 1984 Atlantic hurricane season

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Timeline of the
1984 Atlantic hurricane season
Season summary map
Season boundaries
First system formedJune 11, 1984
Last system dissipatedDecember 24, 1984
Strongest system
NameDiana
Maximum winds130 mph (215 km/h)
(1-minute sustained)
Lowest pressure949 mbar (hPa; 28.02 inHg)
Longest lasting system
NameJosephine
Duration11 days
Storm articles
Other years
1982, 1983, 1984, 1985, 1986

The 1984 Atlantic hurricane season was an event in the annual tropical cyclone season in the north Atlantic Ocean. It was the most active since 1971.[1] During the season, 13 tropical cyclones in the Atlantic Ocean became named storms. the first named storm, Tropical Storm Arthur develops on August 28. the last named storm Hurricane Lili, dissipated on December 24. These dates, adopted by convention, historically describe the period in each year when most systems form.

This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not initially warned upon, has been included.

By convention, meteorologists use one time zone when issuing forecasts and making observations: Coordinated Universal Time (UTC), and also use the 24-hour clock (where 00:00 = midnight UTC).[2] The National Hurricane Center uses both UTC and the time zone where the center of the tropical cyclone is currently located. The time zones utilized (east to west) prior to 2020 were: Atlantic, Eastern, and Central.[3] In this timeline, all information is listed by UTC first, with the respective regional time zone included in parentheses. Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest five units (knots, miles, or kilometers) and averaged over one minute, following National Hurricane Center practice. Direct wind observations are rounded to the nearest whole number. Atmospheric pressures are listed to the nearest millibar and nearest hundredth of an inch of mercury.

Timeline

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Late November 1984 Nor'easterHurricane Klaus (1984)Hurricane Josephine (1984)Tropical Storm Isidore (1984)Tropical Storm Fran (1984)Hurricane Diana (1984)Saffir-Simpson scale

June

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June 1
June 11
June 14
June 18
  • 12:00 UTC  – Tropical Depression Two, forms.[5][4]
June 20
  • 06:00 UTC  – Tropical Depression Two dissipated over the mountainous terrain of eastern Mexico.[5][4]

July

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July 24
July 26

August

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August 18
August 19
August 21
  • 12:00 UTC  – Subtropical Storm One weakens to a tropical depression.[6]
  • 18:00 UTC  – Subtropical Storm One dissipates over the open waters.[6]
August 28
August 29
August 30
  • 12:00 UTC  – Tropical Depression Five forms about 1,170 mi (1,885 km).[8]
August 31
  • 00:00 UTC  – Tropical Depression Six forms about 600 mi (970 km) east of Jacksonville, Florida.[9]
  • 12:00 UTC  – Tropical Depression Six strengthened into Tropical Storm Cesar.[9]

September

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Hurricane Diana
September 2
  • 18:00 UTC  – Tropical Storm Cesar transitions into an extratropical cyclone east of Newfoundland.[9]
September 6
September 8
September 11
  • 07:00 UTC  – Hurricane Diana makes landfall as a Category 2 hurricane, with winds of 92 mph (150 km/h). near Wilmington.[11]
September 12
  • 00:00 UTC  – Hurricane Diana strengthens into a Category 4 hurricane.[11]
September 14
  • 00:00 UTC  – Tropical Depression Nine forms in the Bay of Campeche.[12]
September 15
  • 12:00 UTC  – Tropical Depression Ten develops.[13]
  • 18:00 UTC  – Tropical Storm Edouard dissipates shortly.[12]

October

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Track of Hurricane Josephine
October 2
October 8
October 10
  • 06:00 UTC  – Tropical Storm Josephine strengthens into a hurricane.[14]
October 18
  • 18:00 UTC  – Tropical Storm Josephine transitions into an extratropical cyclone.[14]
October 25

November

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November 5
  • 18:00 UTC  – Tropical Depression Klaus, forms.[16]
November 30
  • The 1984 Atlantic hurricane season officially ends.[1]

December

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December 20
  • 12:00 UTC  – Tropical Storm Lili strengthens into a hurricane.[17]

See also

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References

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  1. ^ a b c "Hurricane FAQ". NOAA's Atlantic Oceanographic and Meteorological Laboratory. Retrieved 2024-09-17.
  2. ^ "Understanding the Date/Time Stamps". Silver Spring, Maryland: National Oceanic and Atmospheric Administration. Archived from the original on February 26, 2023. Retrieved July 10, 2020.
  3. ^ "Update on National Hurricane Center Products and Services for 2020" (PDF). Miami, Florida: National Hurricane Center. April 20, 2020. Archived (PDF) from the original on November 28, 2023. Retrieved May 12, 2023.
  4. ^ a b c d e f g "Atlantic hurricane best track (HURDAT version 2)" (Database). United States National Hurricane Center. April 5, 2023. Retrieved November 15, 2024. Public Domain This article incorporates text from this source, which is in the public domain.
  5. ^ a b David M. Roth (March 8, 2010). "Tropical Depression Two — June 16–20, 1984". Hydrometeorological Prediction Center. Retrieved March 8, 2010.
  6. ^ a b c d "Subtropical Storm One Preliminary Report Page 2". National Hurricane Center. 1984.
  7. ^ a b c "Tropical Storm Arthur Preliminary Report Page 2". National Hurricane Center. 1984. Archived from the original on June 27, 2017.
  8. ^ "Tropical Storm Bertha Preliminary Report Page 5". National Hurricane Center. 1984.
  9. ^ a b c "Tropical Storm Cesar Preliminary Report Page 2". National Hurricane Center. 1984.
  10. ^ David M. Roth (March 9, 2010). "Tropical Depression Seven — September 1–8, 1984". Hydrometeorological Prediction Center. Retrieved March 9, 2010.
  11. ^ a b "Hurricane Diana Preliminary Report Page 4". National Hurricane Center. 1984.
  12. ^ a b "Tropical Storm Edouard Preliminary Report Page 2". National Hurricane Center. 1984.
  13. ^ "Tropical Storm Fran Preliminary Report Page 2". National Hurricane Center. 1984.
  14. ^ a b c "Hurricane Josephine Preliminary Report Page 4". National Hurricane Center. 1984.
  15. ^ David M. Roth (May 11, 2008). "Tropical Depression: October 25–29, 1984". Hydrometeorological Prediction Center. Archived from the original on October 5, 2008. Retrieved November 13, 2008.
  16. ^ "Hurricane Klaus Preliminary Report Page 3". National Hurricane Center. 1984.
  17. ^ "Hurricane Lili Preliminary Report Page 3". National Hurricane Center. 1984.
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