The National Hurricane Service put out an updated advisory at 2 p.m. EDT regarding Hurricane Irma which remains Category 5 hurricane with winds of 185 mph.
Below is the alert in FULL:
Hurricane Irma Intermediate Advisory Number 30A
NWS National Hurricane Center Miami FL AL112017
200 PM AST Wed Sep 06 2017
…EXTREMELY DANGEROUS CORE OF CATEGORY 5 HURRICANE IRMA PASSING
OVER THE NORTHERNMOST VIRGIN ISLANDS…
SUMMARY OF 200 PM AST…1800 UTC…INFORMATION
ABOUT 20 MI…35 KM ENE OF ST. THOMAS
ABOUT 90 MI…150 KM E OF SAN JUAN PUERTO RICO
MAXIMUM SUSTAINED WINDS…185 MPH…295 KM/H
PRESENT MOVEMENT…WNW OR 285 DEGREES AT 16 MPH…26 KM/H
MINIMUM CENTRAL PRESSURE…920 MB…27.17 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of Curacao on behalf of Sint Maartin has discontinued
the Hurricane Warning for Sint Maartin.
The government of Antigua has discontinued the Hurricane warning
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for…
* Saint Martin and Saint Barthelemy
* British Virgin Islands
* U.S. Virgin Islands
* Puerto Rico, Vieques, and Culebra
* Dominican Republic from Cabo Engano to the northern border with
* Haiti from the northern border with the Dominican Republic to Le
Mole St. Nicholas
* Southeastern Bahamas and the Turks and Caicos Islands
A Hurricane Watch is in effect for…
* Cuba from Matanzas province eastward to Guantanamo province
* Central Bahamas
A Tropical Storm Warning is in effect for…
* Dominican Republic from south of Cabo Engano westward to the
southern border with Haiti
* Haiti from south of Le Mole St. Nicholas to Port-Au-Prince
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 Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
Interests elsewhere in the Dominican Republic and Haiti, as well as
Cuba, the northwestern Bahamas, and Florida should monitor the
progress of Irma.
For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area outside
the United States, please monitor products issued by your national
DISCUSSION AND 48-HOUR OUTLOOK
At 200 PM AST (1800 UTC), the eye of Hurricane Irma was located near
latitude 18.5 North, longitude 64.7 West. Irma is moving toward the
west-northwest near 16 mph (26 km/h), and this general motion is
expected to continue for the next couple of days. On the forecast
track, the extremely dangerous core of Irma will continue to move
over portions of the Virgin Islands during the next couple of
hours, pass near or just north of Puerto Rico this afternoon or
tonight, pass near or just north of the coast of the Dominican
Republic Thursday, and be near the Turks and Caicos and southeastern
Bahamas late Thursday.
Maximum sustained winds are near 185 mph (295 km/h) with higher
gusts. Irma is a category 5 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Some fluctuations in intensity are likely
during the next day or two, but Irma is forecast to remain a
powerful category 4 or 5 hurricane during the next couple of days.
An unofficial observation on Buck Island in the U.S. Virgin Islands
has recently reported sustained winds of 106 mph (171 km/h) with a
gust to 131 mph (211 km/h).
Hurricane-force winds extend outward up to 50 miles (85 km) from
the center and tropical-storm-force winds extend outward up to 185
miles (295 km).
The latest estimated minimum central pressure from reconnaissance
data is 920 mb (27.17 inches).
HAZARDS AFFECTING LAND
STORM SURGE: The combination of a life-threatening storm surge and
large breaking waves will raise water levels ABOVE NORMAL TIDE
LEVELS by the following amounts within the hurricane warning area
near and to the north of the center of Irma. Near the coast, the
surge will be accompanied by large and destructive waves.
Northern Leeward Islands…7 to 11 ft
Turks and Caicos Islands…15 to 20 ft
Southeastern Bahamas…15 to 20 ft
Northern coast of the Dominican Republic…3 to 5 ft
Northern coast of Haiti and the Gulf of Gonave…1 to 3 ft
The combination of a life-threatening storm surge and the tide will
cause normally dry areas near the coast to be flooded by rising
waters moving inland from the shoreline. The water is expected to
reach the following HEIGHTS ABOVE GROUND if the peak surge occurs at
the time of high tide…
British and U.S. Virgin Islands except St. Croix…7 to 11 ft
Northern coast of Puerto Rico…4 to 6 ft
Southern coast of Puerto Rico and St. Croix…2 to 4 ft
The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large and
destructive waves. Surge-related flooding depends on the relative
timing of the surge and the tidal cycle, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
WIND: Hurricane conditions will continue today within the hurricane
warning area in the Leeward Islands. Hurricane conditions are
occurring over the British and U.S. Virgin Islands and will spread
westward over portions of Puerto Rico later today. Hurricane
conditions are expected to begin within the hurricane warning area
in the Dominican Republic and and Haiti on Thursday, with tropical
storm conditions beginning tonight. Hurricane conditions are
expected in the warning area in the southeastern Bahamas and the
Turks and Caicos Islands beginning Thursday night.
Hurricane and tropical storm conditions are possible within the
watch area in the central Bahamas and Cuba by Friday.
RAINFALL: Irma is expected to produce the following rain
accumulations through Saturday:
Northern Leeward Islands…8 to 12 inches, isolated 20 inches
Northeast Puerto Rico and the British and U.S. Virgin Islands…4 to
10 inches, isolated 15 inches
Southwest Puerto Rico, the southern Leeward Islands, and Saint
Croix…2 to 4 inches
Southeast Bahamas and Turks and Caicos…8 to 12 inches, isolated 20
Northern Dominican Republic, northern Haiti, eastern and central
Cuba…4 to 10 inches, isolated 15 inches
Southwest Haiti…1 to 4 inches
In all areas this rainfall may cause life-threatening flash floods
SURF: Swells generated by Irma will affect the northern Leeward
Islands, Puerto Rico, the Virgin Islands, the southeastern Bahamas,
the Turks and Caicos Islands, the northern coast of the Dominican
Republic, and portions of the southeast coast of the United States
during the next several days. 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 500 PM AST.
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