1984 Hurricane Season
season was an ongoing event in the annual cycle of tropical cyclone
formation. It officially started June 1, 1984, and lasted until November
The 1984 was an active season, but most of the storms 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
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.
1984 storm 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
name changes. Names that were not assigned are marked in gray.
- Marco (unused)
- Nana (unused)
- Omar (unused)
- Paloma (unused)
- Rene (unused)
- Sally (unused)
- Teddy (unused)
- Vicky (unused)
- Wilfred (unused)
Subtropical Storm One
A 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
The 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
Bertha was a short-lived tropical storm that formed in the mid-Atlantic
on August 31. The storm took a clockwise curving path before merging with
a cold front on September 4. Bertha never approached land and caused no
Tropical Storm Cesar
A 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
traveled northeast and strengthened gradually until it became
extratropical and merged with another system off the coast of Newfoundland
on September 2.
On September 8, a non-tropical low organized into Tropical Storm Diana
north of the Bahamas. Diana proved difficult for meteorologists to
forecast. Initially, the storm headed almost due west towards Cape
Canaveral. When within 50 miles (80 km) of the coast, it turned north, and
generally paralleled the coast. On September 11, the storm reached
hurricane strength, and continued to intensify to a strong Category 3
Diana moved north-northeast, and performed a small anti-cyclonic loop
before striking near Cape Fear, North Carolina 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. There was no damage
to the facility.
Tropical Storm Edouard
The 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 Veracruz.
Tropical Storm Fran
Fran formed near Cape Verde on September 15, and traveled generally
west-northwest. It dissipated on September 20. No damage was reported,
although weather stations in Cape Verde reported winds just under tropical
Tropical Storm Gustav
Gustav 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.
On 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. No damage or deaths were reported.
Tropical Storm Isidore
A 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
dollars). One death from electrocution was reported.
Josephine 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 US 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.
Klaus 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.
Only minimal damage was reported.
A 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.