909
ABNT20 KNHC 121141
TWOAT
TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT TUE AUG 12 2025
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF AMERICA:
ACTIVE SYSTEMS:
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
STORM ERIN, LOCATED OVER THE EASTERN TROPICAL ATLANTIC SEVERAL
HUNDRED MILES WEST OF THE CABO VERDE ISLANDS.
NORTHWESTERN ATLANTIC:
A NON-TROPICAL AREA OF LOW PRESSURE LOCATED A FEW HUNDRED MILES
SOUTHEAST OF NOVA SCOTIA, CANADA, IS PRODUCING DISORGANIZED SHOWER
AND THUNDERSTORM ACTIVITY TO THE WEST OF ITS CENTER. SOME
LIMITED TROPICAL OR SUBTROPICAL DEVELOPMENT IS POSSIBLE OVER THE
NEXT DAY OR SO AS THE LOW MEANDERS NEAR THE RELATIVELY WARM WATERS
OF THE GULF STREAM. THE SYSTEM IS EXPECTED TO MOVE NORTHWARD OVER
COOLER WATERS BY WEDNESDAY, ENDING ITS CHANCES FOR TROPICAL
DEVELOPMENT.
* FORMATION CHANCE THROUGH 48 HOURS...LOW...10 PERCENT.
* FORMATION CHANCE THROUGH 7 DAYS...LOW...10 PERCENT.
NORTH-CENTRAL GULF:
A SURFACE TROUGH NEAR THE COAST OF LOUISIANA IS PRODUCING A BROAD
AREA OF DISORGANIZED SHOWERS AND THUNDERSTORMS. WHILE DEVELOPMENT
OF THIS SYSTEM IS NOT ANTICIPATED BEFORE IT MOVES INLAND LATER
TODAY, LOCALLY HEAVY RAINFALL COULD PRODUCE FLASH FLOODING ACROSS
PORTIONS OF THE NORTHERN GULF COAST OVER THE NEXT DAY OR SO. FOR
MORE INFORMATION ON THE RAINFALL HAZARDS RELATED TO THIS SYSTEM,
PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE.
* FORMATION CHANCE THROUGH 48 HOURS...LOW...NEAR 0 PERCENT.
* FORMATION CHANCE THROUGH 7 DAYS...LOW...NEAR 0 PERCENT.
PUBLIC ADVISORIES ON TROPICAL STORM ERIN ARE ISSUED UNDER WMO HEADER
WTNT35 KNHC AND UNDER AWIPS HEADER MIATCPAT5. FORECAST/ADVISORIES ON
TROPICAL STORM ERIN ARE ISSUED UNDER WMO HEADER WTNT25 KNHC AND
UNDER AWIPS HEADER MIATCMAT5.
FORECASTER BERG
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