NHC Graphical Outlook Archive
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ZCZC MIATWOAT ALL TTAA00 KNHC DDHHMM TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT SUN SEP 18 2011 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... 1. A BROAD AREA OF LOW PRESSURE LOCATED OVER THE CENTRAL TROPICAL ATLANTIC ABOUT MIDWAY BETWEEN THE LESSER ANTILLES AND AFRICA IS PRODUCING A LARGE AREA OF CLOUDINESS AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS ARE FAVORABLE FOR GRADUAL DEVELOPMENT OF THIS LARGE DISTURBANCE OVER THE NEXT FEW DAYS AS IT MOVES WESTWARD AT 5 TO 10 MPH. THIS SYSTEM HAS A LOW CHANCE...20 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. 2. AN ELONGATED AREA OF LOW PRESSURE IS LOCATED ABOUT 300 MILES SOUTH OF THE CAPE VERDE ISLANDS. THIS SYSTEM HAS CHANGED LITTLE AND DEVELOPMENT...IF ANY...SHOULD BE SLOW TO OCCUR AS IT INTERACTS WITH A LARGER DISTURBANCE TO ITS SOUTHWEST. THIS SYSTEM HAS A LOW CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS MOVES WEST-NORTHWESTWARD AT 10 TO 15 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART NNNN
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