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Hurricane Maria Intermediate Advisory Number 25A
NWS National Hurricane Center Miami FL AL152017
800 AM EDT Fri Sep 22 2017
...HURRICANE CONDITIONS OCCURRING ON THE TURKS AND CAICOS ISLANDS...
SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION
ABOUT 30 MI...50 KM NNE OF GRAND TURK ISLAND
ABOUT 465 MI...745 KM ESE OF NASSAU
MAXIMUM SUSTAINED WINDS...125 MPH...205 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of the Bahamas has changed the Tropical Storm Watch
for the central Bahamas to a Tropical Storm Warning.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Dominican Republic from Cabo Engano to Puerto Plata
* Turks and Caicos Islands and the Southeastern Bahamas
A Tropical Storm Warning is in effect for...
* Dominican Republic west of Puerto Plata to the northern border of
the Dominican Republic and Haiti
* Central Bahamas
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
Interests elsewhere in the Bahamas should monitor the progress of
For storm information specific to your area, please monitor products
issued by your national meteorological service.
DISCUSSION AND 48-HOUR OUTLOOK
At 800 AM EDT (1200 UTC), the center of Hurricane Maria was located
near latitude 21.9 North, longitude 70.9 West. Maria is moving
toward the northwest near 7 mph (11 km/h), and a motion toward the
north-northwest is expected later today and Saturday. On the
forecast track, Maria's eye will move near or just east of the Turks
and Caicos Islands and southeastern Bahamas today.
Maximum sustained winds are near 125 mph (205 km/h) with higher
gusts. Maria is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. A gradual weakening is forecast during the
next 48 hours.
Hurricane-force winds extend outward up to 70 miles (110 km) from
the center, and tropical-storm-force winds extend outward up to 160
miles (260 km).
The minimum central pressure based on data from an Air Force
Reserve Hurricane Hunter aircraft is 959 mb (28.32 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions across portions of the Dominican
Republic should subside during the next several hours. Hurricane
conditions are spreading into the Turks and Caicos Islands and the
southeastern Bahamas and will continue through today. Tropical
storm conditions are expected in the central Bahamas beginning
STORM SURGE: A dangerous storm surge accompanied by large and
destructive waves will raise water levels by as much as 9 to 12 feet
above normal tide levels within the hurricane warning area of the
southeastern Bahamas and the Turks and Caicos Islands.
RAINFALL: Maria is expected to produce the following rainfall
accumulations through Saturday:
Turks and Caicos...8 to 16 inches, isolated 20 inches
Puerto Rico...additional 3 to 6 inches, isolated maximum storm
total amounts 40 inches
Eastern Dominican Republic...additional 4 to 8 inches, isolated
storm total amounts 20 inches
Western Dominican Republic and northern Haiti...additional 3 to 6
Mayaguana, southeast Bahamas...4 to 8 inches
Inagua Islands and Crooked Island, Bahamas...2 to 6 inches
Rest of eastern Bahamas...1 to 3 inches
Rainfall on these islands will continue to cause life-threatening
flash floods and mudslides.
SURF: Swells generated by Maria are affecting Puerto Rico, the
Virgin Islands, the northern coast of Hispaniola, the Turks and
Caicos Islands, and the southeastern Bahamas. These swells will
reach the remainder of the Bahamas soon and should reach portions
of the United States southeastern coast today. These swells are
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.
Next complete advisory at 1100 AM EDT.