ZCZC MIATCPAT1 ALL
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Hurricane Delta Intermediate Advisory Number 5A
NWS National Hurricane Center Miami FL AL262020
800 PM EDT Mon Oct 05 2020
...DATA FROM A NOAA HURRICANE HUNTER AIRCRAFT INDICATE THAT DELTA
HAS BECOME A HURRICANE...
SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION
ABOUT 150 MI...245 KM SSW OF NEGRIL JAMAICA
ABOUT 220 MI...355 KM SSE OF GRAND CAYMAN
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...980 MB...28.94 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Cuba province of Pinar del Rio
* Tulum to Rio Lagartos Mexico
A Hurricane Watch is in effect for...
* Cuban province of Artemisa
* Isle of Youth
A Tropical Storm Warning is in effect for...
* Cayman Islands including Little Cayman and Cayman Brac
* Isle of Youth
A Tropical Storm Watch is in effect for...
* Cuba province of La Habana
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.
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 PM EDT (0000 UTC), the center of Hurricane Delta was located
near latitude 16.5 North, longitude 79.6 West. Delta is moving
toward the west-northwest near 8 mph (13 km/h). A faster
northwestward motion is expected Tuesday through Wednesday night.
On the forecast track, the center of Delta is expected to pass
southwest of the Cayman Islands early Tuesday, and approach the
northeastern portion of the Yucatan peninsula and the Yucatan
Channel Tuesday afternoon or evening. Delta is forecast to move
over the southern Gulf of Mexico Tuesday night or early Wednesday,
and be over the south-central Gulf of Mexico on Wednesday and
Data from a NOAA Hurricane Hunter aircraft indicate that the
maximum sustained winds have increased to near 75 mph (120 km/h)
with higher gusts. Additional rapid strengthening is expected
during the next day or so, and Delta is expected to be a major
hurricane when it nears the Yucatan Peninsula.
Hurricane-force winds extend outward up to 15 miles (25 km) from
the center and tropical-storm-force winds extend up to 70 miles (110
km) from the center.
The minimum central pressure estimated from data provided by the
NOAA reconnaissance aircraft is 980 mb (28.94 inches).
HAZARDS AFFECTING LAND
Key messages for 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 4 to 7 feet above normal tide levels along coast of the
Yucatan peninsula within the hurricane warning area, near and to
right of where the center makes landfall. Near the coast, the surge
will be accompanied by large and dangerous waves.
WIND: Tropical storm conditions are expected in the Cayman Islands
later tonight. Hurricane conditions are expected within the
hurricane warning area in the Yucatan Peninsula Tuesday night, with
tropical storm conditions beginning late Tuesday. Hurricane
conditions are expected within a portion of the the Hurricane
Warning area in western Cuba by late Tuesday night, with tropical
storm conditions expected beginning late Tuesday. Hurricane
conditions are possible on the Isle of Youth beginning Tuesday
afternoon with tropical storm conditions expected by early Tuesday.
Tropical storm conditions are possible in the Tropical Storm Watch
area in Cuba on Tuesday.
RAINFALL: Through midweek, Delta is expected to produce 3 to 6
inches of rain with isolated maximum totals of 8 inches across
Jamaica, the Cayman Islands, western Cuba and the northern Yucatan
Peninsula. This rainfall could lead to significant flash floods and
Later this week into the weekend, Delta is expected to bring heavy
rainfall across portions of the central Gulf Coast into the
southeastern United States.
Next complete advisory at 1100 PM EDT.