N Atlantic: Storm Alert issued at 19 Sep, 2017 3:00 GMT
Intense Hurricane MARIA is currently located near 15.5 N 61.4 W with maximum 1-min sustained winds of 140 kts (161 mph). MARIA is a category 5 storm on the Saffir Simpson Hurricane Wind Scale. MARIA is forecast to affect land to the following likelihood(s) at the given lead time(s):
Red Alert Country(s) or Province(s)
Guadeloupe
probability for CAT 1 or above is 100% currently
probability for TS is 100% currently
Dominica
probability for CAT 1 or above is 100% currently
probability for TS is 100% currently
Martinique
probability for CAT 1 or above is 65% currently
probability for TS is 100% currently
Montserrat
probability for CAT 1 or above is 55% within 9 hours
probability for TS is 100% within 9 hours
Antigua and Barbuda
probability for CAT 1 or above is 45% in about 21 hours
probability for TS is 100% in about 21 hours
St. Kitts and Nevis
probability for CAT 1 or above is 40% in about 21 hours
probability for TS is 95% within 9 hours
the Virgin Islands
probability for CAT 1 or above is 40% in about 33 hours
probability for TS is 80% in about 21 hours
the Netherlands Antilles
probability for CAT 1 or above is 35% in about 21 hours
probability for TS is 85% within 9 hours
the British Virgin Islands
probability for CAT 1 or above is 35% in about 33 hours
probability for TS is 70% in about 21 hours
Puerto Rico
probability for CAT 1 or above is 35% in about 33 hours
probability for TS is 70% in about 33 hours
Red Alert City(s) and Town(s)
St. Croix (17.7 N, 64.9 W)
probability for CAT 1 or above is 40% in about 33 hours
probability for TS is 70% in about 21 hours
St. Thomas (18.5 N, 64.7 W)
probability for CAT 1 or above is 35% in about 33 hours
probability for TS is 70% in about 33 hours
San Juan (18.4 N, 66.1 W)
probability for CAT 1 or above is 35% in about 33 hours
probability for TS is 70% in about 33 hours
Yellow Alert Country(s) or Province(s)
St. Lucia
probability for TS is 85% currently
Anguilla
probability for CAT 1 or above is 15% in about 33 hours
probability for TS is 80% in about 21 hours
the Dominican Republic
probability for CAT 1 or above is 10% in about 45 hours
probability for TS is 60% in about 45 hours
the Turks & Caicos Islands
probability for CAT 1 or above is 10% in about 93 hours
probability for TS is 35% in about 69 hours
Yellow Alert City(s) and Town(s)
Grand Turk (21.5 N, 71.5 W)
probability for CAT 1 or above is 10% in about 93 hours
probability for TS is 40% in about 69 hours
Santo Domingo (18.7 N, 69.9 W)
probability for CAT 1 or above is 10% in about 69 hours
probability for TS is 45% in about 69 hours
Note that
Red Alert (Severe) is CAT 1 or above to between 31% and 100% probability.
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Hurricane strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
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This alert is provided by Tropical Storm Risk (TSR) which is sponsored by UCL, Crawford & Company and the Aon Benfield UCL Hazard Research Centre.