N Atlantic: Storm Alert issued at 22 Oct, 2023 3:00 GMT
Hurricane TAMMY is currently located near 17.8 N 61.9 W with maximum 1-min sustained winds of 75 kts (86 mph). TAMMY is a category 1 storm on the Saffir Simpson Hurricane Wind Scale. TAMMY is forecast to affect land to the following likelihood(s) at the given lead time(s):
Red Alert Country(s) or Province(s)
Antigua and Barbuda
probability for CAT 1 or above is 70% currently
probability for TS is 100% currently
Yellow Alert Country(s) or Province(s)
Guadeloupe
probability for TS is 100% currently
Anguilla
probability for CAT 1 or above is 10% within 9 hours
probability for TS is 80% within 9 hours
the Netherlands Antilles
probability for TS is 60% currently
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).