NHC Graphical Outlook Archive

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ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT THU OCT 28 2010

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

1. SHOWER AND THUNDERSTORM ACTIVITY ASSOCIATED WITH A LOW PRESSURE
SYSTEM LOCATED ABOUT 1200 MILES NORTHWEST OF THE NORTHERNMOST CAPE
VERDE ISLANDS HAS BECOMES LESS ORGANIZED OVER THE PAST FEW HOURS. 
SATELLITE DATA INDICATE THAT THE LOW IS PRODUCING WINDS TO GALE
FORCE.  ALTHOUGH UPPER-LEVEL WINDS ARE ONLY MARGINALLY CONDUCIVE
FOR DEVELOPMENT...AN INCREASE IN ORGANIZATION COULD RESULT IN THE
FORMATION OF A TROPICAL STORM.  THERE IS A MEDIUM CHANCE...50
PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS AS IT MOVES SLOWLY WESTWARD.

2. SATELLITE IMAGES AND SURFACE OBSERVATIONS INDICATE THAT A SURFACE
LOW IS FORMING WITHIN A DEEP-LAYER TROUGH LOCATED ABOUT 700 MILES
SOUTH-SOUTHEAST OF BERMUDA.  SHOWER AND THUNDERSTORM ACTIVITY HAS
CHANGED LITTLE DURING THE LAST FEW HOURS.  HOWEVER...ENVIRONMENTAL
CONDITIONS ARE BECOMING MORE CONDUCIVE FOR THE DEVELOPMENT OF A
TROPICAL OR SUBTROPICAL DEPRESSION DURING THE NEXT DAY OR TWO. 
THERE IS A HIGH CHANCE...60 PERCENT...OF THIS SYSTEM BECOMING A
SUBTROPICAL OR TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT
MOVES WEST-NORTHWESTWARD NEAR 15 MPH.

3. A VIGOROUS TROPICAL WAVE LOCATED OVER THE TROPICAL ATLANTIC 
ABOUT 1000 MILES EAST-SOUTHEAST OF THE WINDWARD ISLANDS IS PRODUCING
A LARGE AREA OF SHOWERS AND THUNDERSTORMS.  ENVIRONMENTAL
CONDITIONS APPEAR FAVORABLE FOR SOME SLOW DEVELOPMENT OF THIS
SYSTEM DURING THE NEXT COUPLE OF DAYS.  THERE IS A LOW CHANCE...20
PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS AS IT MOVES WESTWARD OR WEST-NORTHWESTWARD AT 15 TO
20 MPH.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER CANGIALOSI/PASCH
NNNN

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