1963 revisions
Posted by Fred on 12/24/2019, 3:21 pm



Hurricane Arlene [July 31 - August 12, 1963] AL011963 (pages 168-179)

Significant Revisions:
Intensity is significantly reduced on the 2nd, 3rd, and 9th based upon
aircraft reconnaissance.
Added a disturbance stage on August 6th.
Intensity is significantly boosted on the 9th based upon aircraft
reconnaissance.
Upgraded to a major hurricane on the 10th
Position substantially adjusted southeastward on the 11th based upon ship
observations.
Added 66 hours to the life cycle as an extratropical cyclone.

Impacts and landfalls not revisions

Hurricane Landfall
------------------
08/09 1530Z 32.3N 64.8W 95 kt Bermuda 975 mb






Hurricane Beulah [August 20 September 6, 1963] AL021963 (pages 180-193)

Significant Revisions:
Several central pressures were added, mainly based upon aircraft
reconnaissance.
Intensity substantially reduced on the 26th based upon aircraft observations.
A major alteration is to add ten days to the lifetime of this tropical
cyclone.


Impacts and landfalls not revisions
NONE





Unnamed Hurricane [September 9-14, 1963] AL031963 (pages 193-198)

Significant Revisions:
Intensity substantially boosted(from Tropical Storm to Hurricane) on the 11th and 12th based upon ship
observations.
A major alteration is to indicate that the tropical cyclone reached
hurricane intensity.
Positions are substantially shifted east-northeastward on the 13th based upon
ship observations.
No extratropical transition is now shown for this system.


Impacts and landfalls not revisions
NONE




Tropical Storm Cindy [September 16-20, 1963] AL041963 (pages 199-204)

Significant Revisions:
Intensity substantially reduced on the 16th and 17th based upon aircraft
reconnaissance data.
Downgrade introduced for the system from a hurricane to a tropical storm.

Impacts and landfalls not revisions

U.S. Tropical Storm Landfall
----------------------------
09/17 14Z 29.6N 94.3W 55 kt TX - 997 mb





Hurricane Debra [September 19-24, 1963] AL051963 (pages 204-210)

Significant Revisions:
Substantial boost to intensity on 20th and 21st based upon ship observHurricane Edith [September 23-29, 1963] AL061963 (pages 211-220)ations.
Removed the extratropical transition for this system.

Impacts and landfalls not revisions
NONE




Hurricane Edith [September 23-29, 1963] AL061963 (pages 211-220)


Significant Revisions:
Intensity substantially increased on the 24th based upon aircraft
reconnaissace
Intensity substantially reduced on the 27th based upon aircraft
reconnaissance
A remnant low status is indicated for 12 and 18Z on the 29th based upon
satellite imagery. This is the earliest such usage of remnant low in
HURDAT.

Impacts and landfalls not revisions

Hurricane Landfall
------------------
09/25 07Z 14.0N 60.9W 85 kt St. Lucia
Tropical Storm Landfall
-----------------------
09/27 10Z 18.4N 69.1W 60 kt Dominican Republic
09/28 18Z 21.8N 72.2W 35 kt Turks and Caicos Islands




Hurricane Flora [September 26 October 13, 1963] AL071963 (220-241)

Significant Revisions:
Genesis is delayed by two days based upon satellite imagery.
Several central pressures added/modified based upon aircraft
reconnaissance.
Many central pressures removed from 12Z HURDAT, as these were analyses and
not based upon specific observations.
Intensity substantially reduced on the 30th, 1st, 2nd, 5th, 6th, 7th, and 8th
based upon aircraft reconnaissance.
Intensity substantially boosted on the 9th based upon aircraft
reconnaissance.
Positions substantially adjusted west-southwest on the 12th.
Four additional days added to end of track as extratropical cyclone



Impacts and landfalls not revisions


Hurricane Landfall
------------------
09/30 18Z 11.2N 60.7W 90 kt Tobago
10/04 01Z 18.2N 73.0W 130 kt Haiti
10/04 18Z 20.0N 74.9W 105 kt Cuba








Hurricane Ginny [October 17-30, 1963] AL081963 (241-260)


Significant Revisions:
Genesis indicated to have occurred 30 hours later.
Intensity substantially reduced on the 25th and 26th based upon aircraft
reconnaissance.
Intensity substantially reduced on the 30th based upon ship observations.
Ginny explicitly shown to be a hurricane at landfall in Canada (previously
it was ambiguous in HURDAT).


impacts and landfalls

U.S. Tropical Storm Impact
--------------------------
09/26 06Z 33.1N 76.9W 55 kt North Carolina
09/29 06Z 38.1N 68.8W 35 kt Massachusetts
Internation Landfall
--------------------
09/29 1730Z 43.8N 65.8W 90 kt 948 mb Canada






Tropical Storm Helena [October 25-30, 1963] AL091963 (pages 260-266)

Significant Revisions:
1. None


impacts and landfalls
Tropical Storm Landfall
-----------------------
10/28 02Z 17.0N 61.8W 45 kt Antigua




NEW STORMS

Unnamed Tropical Storm (New June 2-4, 1063) AL101963 (Pages 266-270)

Significant Revisions:
A new tropical storm has been added to HURDAT, not previously shown in
McAdie et al. (2009)


Impacts and landfalls

U.S. Tropical Storm Landfall
----------------------------
06/03 08Z 35.2N 75.8W 50 kt NC (40 kt peak winds along the coast)
































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official reanalysis of the 1961-65 seasons - Fred, 11/30/2019, 10:30 am
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