N Atlantic: Storm Alert issued at 4 Aug, 2020 9:00 GMT
Tropical Storm ISAIAS is currently located near 36.3 N 77.5 W with maximum 1-min sustained winds of 60kts (69 mph). ISAIAS is forecast to affect land to the following likelihood(s) at the given lead time(s):
Red Alert Country(s) or Province(s) the United States
probability for CAT 1 or above is 35% currently
probability for TS is 100% currently
Yellow Alert Country(s) or Province(s) Canada
probability for TS is 80% in about 21 hours
Yellow Alert City(s) and Town(s) Salisbury (38.3 N, 75.6 W)
probability for CAT 1 or above is 20% within 9 hours
probability for TS is 100% within 9 hours
Capeville (37.2 N, 75.9 W)
probability for CAT 1 or above is 15% within 9 hours
probability for TS is 100% within 9 hours
Norfolk (36.9 N, 76.2 W)
probability for CAT 1 or above is 20% within 9 hours
probability for TS is 100% within 9 hours
Belmar (40.1 N, 74.1 W)
probability for TS is 100% within 9 hours
Philadelphia (39.9 N, 75.2 W)
probability for CAT 1 or above is 15% within 9 hours
probability for TS is 100% within 9 hours
Atlantic City (39.0 N, 74.8 W)
probability for CAT 1 or above is 15% within 9 hours
probability for TS is 100% within 9 hours
New York (40.7 N, 73.9 W)
probability for TS is 95% within 9 hours
Baltimore (39.5 N, 76.0 W)
probability for CAT 1 or above is 20% within 9 hours
probability for TS is 90% within 9 hours
Richmond (37.5 N, 77.5 W)
probability for CAT 1 or above is 10% within 9 hours
probability for TS is 85% currently
Albany (42.7 N, 73.8 W)
probability for TS is 80% in about 21 hours
Providence (41.8 N, 71.4 W)
probability for TS is 80% in about 21 hours
Hartford (41.5 N, 72.7 W)
probability for TS is 80% in about 21 hours
Montauk (41.0 N, 72.2 W)
probability for TS is 80% in about 21 hours
Montpelier (44.3 N, 72.6 W)
probability for TS is 80% in about 21 hours
Concord (43.2 N, 71.5 W)
probability for TS is 80% in about 21 hours
Kitty Hawk (36.1 N, 75.7 W)
probability for TS is 75% currently
Portland (43.5 N, 70.4 W)
probability for TS is 75% in about 21 hours
Boston (42.3 N, 71.0 W)
probability for TS is 75% in about 21 hours
Washington D.C. (38.9 N, 77.0 W)
probability for TS is 70% within 9 hours
Augusta (44.3 N, 69.8 W)
probability for TS is 70% in about 21 hours
Hatteras (35.2 N, 75.6 W)
probability for TS is 65% currently
Quebec (46.8 N, 71.2 W)
probability for TS is 55% in about 33 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).
