Tropical Storm Isaac 2am ET advisory issued; storm is 55 miles SW of Port au Prince, Haiti

Atlantic Graphical Tropical Weather Outlook

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GIS data:  .shp

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TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT SAT AUG 25 2012

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

THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
STORM ISAAC...LOCATED ABOUT 55 MILES SOUTHWEST OF PORT AU PRINCE
HAITI.

1. A WEAK AREA OF LOW PRESSURE...THE REMNANTS OF TROPICAL DEPRESSION
JOYCE...IS LOCATED ABOUT 750 MILES EAST-NORTHEAST OF THE LEEWARD
ISLANDS.  ENVIRONMENTAL CONDITIONS DO NOT APPEAR FAVORABLE FOR THE
REMNANT LOW TO REGENERATE INTO A TROPICAL CYCLONE DURING THE NEXT
COUPLE OF DAYS.  THIS SYSTEM HAS A LOW CHANCE...10 PERCENT...OF
BECOMING A TROPICAL CYCLONE AGAIN DURING THE NEXT 48 HOURS AS IT
MOVES WEST-NORTHWESTWARD TO NORTHWESTWARD AT ABOUT 20 MPH.

2. THERE HAS BEEN LITTLE CHANGE IN THE SHOWER AND THUNDERSTORM ACTIVITY
ASSOCIATED WITH A BROAD AREA OF LOW PRESSURE CENTERED ABOUT 300
MILES SOUTHWEST OF THE CAPE VERDE ISLANDS.  ENVIRONMENTAL
CONDITIONS ARE MARGINALLY CONDUCIVE FOR DEVELOPMENT AS THE SYSTEM
MOVES TOWARD THE WEST-NORTHWEST AT 10 TO 15 MPH. THIS SYSTEM HAS A
MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING
THE NEXT 48 HOURS.

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