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Tropical Storm Delta Intermediate Advisory Number 3A
NWS National Hurricane Center Miami FL AL262020
800 AM EDT Mon Oct 05 2020
...TROPICAL DEPRESSION STRENGTHENS INTO A TROPICAL STORM...
...ADDITIONAL STRENGTHENING LIKELY OVER THE NEXT FEW DAYS...
SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION
ABOUT 130 MI...210 KM S OF NEGRIL JAMAICA
ABOUT 270 MI...440 KM SE OF GRAND CAYMAN
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Watch is in effect for...
* Cuban provinces of Pinar del Rio and Artemisa
* Isle of Youth
A Tropical Storm Warning is in effect for...
* Cayman Islands including Little Cayman and Cayman Brac
A Tropical Storm Watch is in effect for...
* Cuba province of La Habana
A Hurricane Watch means that hurricane conditions are possible
within the watch area, generally within 48 hours.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 800 AM EDT (1200 UTC), the center of Tropical Storm Delta was
located near latitude 16.4 North, longitude 78.4 West. The
storm is moving toward the west-northwest near 9 mph (15 km/h), and
this general motion should continue for the next day or so. A
faster northwestward motion is expected on Tuesday and Wednesday.
On the forecast track, the center of Delta is expected to
move away from Jamaica later today, move near or over the Cayman
Islands later tonight, and approach the Isle of Youth and western
Cuba Tuesday afternoon or evening. Delta is forecast to move into
the southeastern Gulf of Mexico Tuesday night or early Wednesday.
Maximum sustained winds have increased to near 40 mph (65 km/h)
with higher gusts. Additional strengthening is expected during the
next few days, and the tropical storm is expected to be a hurricane
when it moves near or over western Cuba.
Tropical-storm-force winds extend outward up to 45 miles (75 km)
from the center.
The estimated minimum central pressure is 1004 mb (29.65 inches).
HAZARDS AFFECTING LAND
Key messages for Tropical Storm Delta can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml.
STORM SURGE: A dangerous storm surge will raise water levels by
as much as 3 to 5 feet above normal tide levels along the immediate
coast of the Isle of Youth and along the south coast of western
Cuba near and to right of where the center makes landfall. Near the
coast, the surge will be accompanied by large and dangerous waves.
RAINFALL: Through midweek, Delta is expected to produce 3 to
5 inches of rain with isolated maximum totals of 8 inches across
Jamaica and western Cuba. This rainfall could lead to significant
flash floods and mudslides. Over the Cayman Islands, 2 to 4 inches
of rainfall will be possible with this system.
WIND: Tropical storm conditions are expected in the Cayman Islands
beginning late today. Hurricane conditions are possible within
the Hurricane Watch area by Tuesday afternoon, with tropical storm
conditions possible by early Tuesday. Tropical Storm conditions
are possible in the Tropical Storm Watch area in Cuba by early
Next complete advisory at 1100 AM EDT.