Deze bedoel je?

Bericht van: Takkie (Amstelveen) , 15-10-2008 15:59 

Hurricane OMAR is forecast to strike land to the following likelihood(s) at the given lead time(s):

Yellow Alert Country(s) or Province(s)
the British Virgin Islands
probability for CAT 1 or above is 30% in about 21 hours
probability for TS is 70% in about 21 hours
the Virgin Islands
probability for CAT 1 or above is 30% in about 21 hours
probability for TS is 70% in about 21 hours
the Netherlands Antilles
probability for CAT 1 or above is 25% in about 33 hours
probability for TS is 65% in about 33 hours
Puerto Rico
probability for CAT 1 or above is 25% in about 21 hours
probability for TS is 65% in about 21 hours
Anguilla
probability for CAT 1 or above is 30% in about 33 hours
probability for TS is 65% in about 33 hours
Guadeloupe
probability for CAT 1 or above is 25% in about 33 hours
probability for TS is 65% in about 33 hours
St. Kitts and Nevis
probability for TS is 60% in about 33 hours
Yellow Alert City(s) and Town(s)
St. Croix (17.7 N, 64.9 W)
probability for CAT 1 or above is 30% in about 21 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 25% in about 21 hours
probability for TS is 65% in about 21 hours

Note that
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.

 Quote selectie