Hazardous Weather Outlook

By: National Weather Service
By: National Weather Service

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
612 AM EST TUE FEB 17 2009

ALZ065069-FLZ007019-026029-034-GAZ120131-142148-155161-
GMZ730-750-755-765-770-775-180900-
COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-COASTAL WALTON-
HOLMES-WASHINGTON-JACKSON-BAY-CALHOUN-GULF-FRANKLIN-GADSDEN-LEON-
JEFFERSON-MADISON-LIBERTY-WAKULLA-TAYLOR-LAFAYETTE-DIXIE-QUITMAN-
CLAY-RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-
IRWIN-EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-
DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM-
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM-
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM-
COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM-
WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM-
WATERS FROM SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM-
612 AM EST TUE FEB 17 2009 /512 AM CST TUE FEB 17 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA...
SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND
AND PANHANDLE...AND ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT...

DRIER AIR WILL REMAIN IN PLACE TODAY ALLOWING LONG DURATIONS OF
LOW RELATIVE HUMIDITY TO OCCUR OVER MUCH OF NORTH FLORIDA ONCE
AGAIN. HOWEVER...HIGH LEVEL CLOUDS WILL BE ON THE INCREASE FROM
WEST TO EAST...SO THE WARMEST TEMPERATURES AND LONGEST DURATIONS
OF CRITICAL RELATIVE HUMIDITY ARE EXPECTED OVER THE FLORIDA BIG
BEND NEAR THE SUWANNEE RIVER VALLEY. THE DRY AIR WILL LIKELY
ENHANCE ANY WILDFIRES.

SOUTHERLY FLOW WILL BEGIN TO INCREASE TONIGHT WELL AHEAD OF AN
APPROACHING COLD FRONT. WINDS AND SEAS ARE EXPECTED TO REACH
CAUTIONARY LEVELS OVER THE MARINE ZONES AND MAY EVEN APPROACH
ADVISORY LEVELS TOWARD MORNING OVER THE WESTERN LEGS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

SOUTHERLY WINDS WILL CONTINUE TO INCREASE DURING WEDNESDAY
RESULTING IN WINDS AND SEAS REACHING SOLID ADVISORY LEVELS ACROSS
THE MARINE AREA BY THE AFTERNOON HOURS. WINDS WILL SHIFT TO THE
NORTHWEST BEHIND A PASSING COLD FRONT WEDNESDAY NIGHT...HOWEVER
ADVISORY LEVEL CONDITIONS ARE ANTICIPATED TO CONTINUE THROUGH AT
LEAST THURSDAY NIGHT BEFORE HIGH PRESSURE BUILDS OVER THE NORTHERN
GULF ON FRIDAY. THE PASSAGE OF A STRONG COLD FRONT SATURDAY NIGHT
IS ANTICIPATED TO PRODUCE ANOTHER ROUND OF ADVISORY LEVEL
NORTHERLY WINDS FOR THE SECOND HALF OF THE UPCOMING WEEKEND.

ELEVATED SURF BETWEEN 3 AND 5 FEET IS EXPECT WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING ALONG THE BEACHES OF THE EASTERN FLORIDA
PANHANDLE AND FRANKLIN COUNTY IN THE WESTERN BIG BEND. A FEW 6 TO
7 FOOT SETS ARE POSSIBLE WEDNESDAY EVENING INTO EARLY THURSDAY.
THOSE WITH BEACH ACTIVITIES PLANNED FOR WEDNESDAY AND THURSDAY
SHOULD MONITOR THE LATER FORECASTS FOR ANY POSSIBLE ADVISORY
STATEMENTS THAT MAY BECOME NECESSARY.

A BAND OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO CROSS THE
FORECAST AREA LATER WEDNESDAY AFTERNOON THROUGH WEDNESDAY NIGHT
AHEAD OF A STRONG COLD FRONT. DESPITE LIMITED INSTABILITY...THE
ENVIRONMENTAL WINDS AND DEEP LAYER SHEAR ARE HIGH ENOUGH TO
SUPPORT ORGANIZED UPDRAFTS. A LIMITED THREAT FOR DAMAGING
STRAIGHT LINE WINDS IS ANTICIPATED WITH ANY DISCRETE BOWING
SEGMENTS...AND THE STORM PREDICTION CENTER HAS OUTLINED OUR AREA
UNDER A SLIGHT RISK FOR SEVERE WEATHER. THE COLD FRONT WILL EXIT
THE SOUTHEAST FLORIDA BIG BEND EARLY THURSDAY MORNING...ENDING
THE THREAT FOR SEVERE WEATHER.

A LIGHT ADVECTION FREEZE IS POSSIBLE LATE THURSDAY NIGHT...
ESPECIALLY NORTH OF THE FLORIDA BORDER ACROSS PORTIONS OF
SOUTHEAST ALABAMA AND SOUTHERN GEORGIA. HIGH PRESSURE THEN SETTLES
OVERHEAD FRIDAY NIGHT PROVIDING A GOOD RADIATIONAL COOLING
SETUP...AND A MORE WIDESPREAD LIGHT FREEZE AWAY FROM THE IMMEDIATE
COAST. ANOTHER FRONT WILL DELIVER A SHOT OF COLD AND DRY AIR FOR
THE END OF THE WEEKEND WITH A LIGHT FREEZE AGAIN POSSIBLE SUNDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATE WEDNESDAY AFTERNOON
AND WEDNESDAY NIGHT.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA
OF INTEREST ON THE NATIONAL MAP.


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