National Weather Service Weather Forecast Office

HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 148 PM CST WED NOV 25 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF COASTAL WATERS OF SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI...SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

.DAY ONE...THIS AFTERNOON AND TONIGHT BREEZY CONDITIONS ARE EXPECTED TO RETURN TO THE COASTAL WATERS TONIGHT. EXERCISE CAUTION HEADLINES ARE IN EFFECT FOR THE GULF WATERS BEGINNING AT 9 PM TONIGHT.

ADDITIONALLY...RIVER FLOODING WILL CONTINUE ALONG THE ATCHAFALAYA RIVER NEAR MORGAN CITY. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENT FOR DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A REINFORCING COLD AND DRY AIR MASS WILL MOVE INTO THE AREA THURSDAY...RESULTING IN THE COLDEST TEMPERATURES OF THE SEASON THUS FAR. A FEW HOURS OF FREEZING TEMPERATURES ARE FORECAST ACROSS PORTIONS OF SOUTHERN MISSISSIPPI AND THE UPPER FLORIDA PARISHES. A FREEZE WARNING MAY BE NEEDED FOR THESE AREAS FOR A FEW HOURS EARLY FRIDAY MORNING.

A COLD FRONT IS FORECAST TO AFFECT THE AREA EARLY NEXT WEEK. AS THE FRONT MOVES THROUGH THE AREA MONDAY OR MONDAY NIGHT...THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS...SOME OF WHICH WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL. BEHIND THE FRONT...A COLD AND DRY AIR MASS WILL MOVE INTO THE AREA WITH ANOTHER ROUND OF NEAR FREEZING...OR FREEZING...TEMPERATURES EXPECTED TUESDAY NIGHT. THE COLDEST TEMPERATURES ARE EXPECTED ACROSS SOUTHERN MISSISSIPPI AND PORTIONS OF SOUTHEAST LOUISIANA THAT ARE GENERALLY NORTH OF THE INTERSTATE 10 AND 12 CORRIDOR.

MARINE...EXERCISE CAUTION HEADLINES MAY NEED TO BE REPLACED WITH SMALL CRAFT ADVISORIES THURSDAY AND THURSDAY NIGHT AS A COLD AIR MASS MOVES INTO THE NORTHERN GULF OF MEXICO. ADDITIONAL HEADLINES MAY BE NEEDED TUESDAY AND WEDNESDAY AS ANOTHER STRONG SURFACE RIDGE BUILDS INTO THE COASTAL WATERS BEHIND A COLD FRONT.

.SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.