Red Flag Warning 18, NWS Melbourne, FL

000 
WWUS82 KMLB 132219
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
519 PM EST FRI FEB 13 2009

...RED FLAG WARNING EXTENDED UNTIL 7 PM ACROSS INLAND VOLUSIA
...LAKE...SEMINOLE ORANGE AND OSCEOLA COUNTIES...

FLZ041-044>046-053-144-140000-
/O.EXP.KMLB.FW.W.0018.000000T0000Z-090213T2200Z/
/O.NEW.KMLB.FW.W.0019.090213T2219Z-090214T0000Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
519 PM EST FRI FEB 13 2009

...RED FLAG WARNING HAS BEEN EXTENDED UNTIL 7 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS EXTENDED THE RED
FLAG WARNING...WHICH IS NOW IN EFFECT UNTIL 7 PM EST THIS EVENING.

HUMIDITY OBSERVATIONS AT 5 PM INDICATE RELATIVE HUMIDITIES 20 PERCENT
OR LESS AT ORLANDO...SANFORD AND LEESBURG. RELATIVE HUMIDITIES ARE
EXPECTED TO REMAIN BELOW 35 PERCENT THROUGH 7 PM OVER NORTHERN
INTERIOR PORTIONS OF EAST CENTRAL FLORIDA.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
LOW RELATIVE HUMIDITY AND WARM TEMPERATURES MAY CREATE EXPLOSIVE
FIRE GROWTH POTENTIAL.

$$

15

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
920 AM EST FRI FEB 13 2009

.DISCUSSION...
CURRENT-TODAY...THE COOL FRONTAL BOUNDARY IS SETTLING TEMPORARILY
OVER THE SOUTHERN PENINSULA THIS MORNING. FOG/STRATUS HAS CLEARED
MOST AREAS EXCEPT A LITTLE SLOWER IN OKEECHOBEE...ST. LUCIE AND
MARTIN COUNTIES AND CONDITIONS HERE SHOULD CONTINUE TO IMPROVE
THROUGH MID-LATE MORNING. HAVE ALREADY SENT UPDATES TO ZONES/HWO TO
CLEAN UP FIRST PERIOD WORDING. DRIER AIR WILL FILTER SOUTHWARD DOWN
THE PENINSULA DURING THE DAY...THOUGH CURRENT LIGHT NORTH WINDS WILL
CONTINUE TO VEER TO NORTHEAST THROUGH THE LATE MORNING AND EARLY
AFTERNOON...BECOMING EASTERLY BY LATE IN THE DAY. THIS IN PART DUE
TO HIGH PRESSURE MOVING OFF OF THE SOUTHEAST U.S. COAST. MOSTLY
SUNNY SKIES WILL PREVAIL...EXCEPT PARTLY SUNNY SKIES SOUTH WHERE
CLOUDS ARE SLOWER TO BREAK UP BEHIND THE RECENT BOUNDARY PASSAGE.
NOT MUCH IN THE WAY OF COOLER AIR BEHIND THIS FRONT AS HIGHS RECOVER
NICELY THIS AFTERNOON INTO THE MIDDLE 70S NORTH TO AROUND 80 DEGREES
SOUTH.

TONIGHT...(PREVIOUS)...EXPECT THE MAIN PROBLEM WILL AGAIN BE FOG AS
THE WEAK BOUNDARY TRANSITIONS BACK NORTHWARD. AN AREA OF CONVECTION
OVER THE NORTH GULF COAST SHOULD MAINLY STAY TO OUR NORTH THOUGH
HAVE CONTINUED A SLIGHT CHANCE FOR SHOWERS AFTER MIDNIGHT ACROSS THE
NORTH HALF IN ACCORDANCE WITH MOS POPS. THINK THAT ANY RAINFALL WILL
BE LIGHT. THE SOUTH HALF SHOULD HAVE LESS CLOUDINESS AND HENCE THE
THREAT FOR DENSE FOG MAY BE THE GREATEST THERE AGAIN.

&&

.AVIATION...AREA OF STRATUS IN OKEECHOBEE/MARTIN AND ST. LUCIE
COUNTIES WILL CONTINUE TO BREAK THROUGH LATE MORNING AS RECENT COLD
FRONTAL BOUNDARY SETTLES INTO THE SOUTHERN PENINSULA. MUCH DRIER AIR
WILL SPREAD SOUTHWARD INTO EAST CENTRAL FLORIDA DURING THE DAY. VFR
THE REST OF THE DAY. LOW STRATUS AND FOG ARE EXPECTED AGAIN TONIGHT.

&&

.MARINE...THROUGH TONIGHT...THE FRONTAL BOUNDARY HAS SHIFTED INTO
THE SOUTHERN PENINSULA. NORTH WINDS THIS MORNING WILL VEER TO
NORTHEAST INTO EARLY AFTERNOON AND EASTERLY BY LATE IN THE DAY. THE
AFOREMENTIONED BOUNDARY IS POISED TO MOVE BACK NORTHWARD EARLY THIS
EVENING AS A WARM FRONT WITH WINDS SHIFTING TO THE SOUTHEAST AFTER
ITS PASSAGE. WINDS WILL CONTINUE TO VEER OVERNIGHT AND BECOME
SOUTHERLY BY DAYBREAK SAT MORNING. SPEEDS ARE EXPECTED TO BE MAINLY
AROUND 10 KTS WITH SEAS 2-3 FT.

&&

.FIRE WEATHER...TODAY...(PREVIOUS DISCUSSION)...THE LATEST MAV
GUIDANCE HAS DEW POINTS IN THE MID 40S ACROSS THE NORTH AND THE MET
GUIDANCE IS EVEN DRIER. AT LEAST A FEW HOURS OF RH BELOW 35 PERCENT
IS EXPECTED ACROSS THE NORTH HALF OF THE INTERIOR...AND WITH THE
FORECAST SOUNDINGS SHOWING CONSIDERABLE DRY AIR ABOVE THE
SURFACE...WOULD NOT BE SURPRISED IF 4 OR MORE HOURS OF LOW RH
OCCURRED. HAVE NOT RAISED A RED FLAG BUT DAY SHIFT MAY HAVE TO ISSUE
AFTER LOOKING AT EARLY MORNING SOUNDINGS AND DEW POINT TRENDS.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.

&&

SEDLOCK/CRISTALDI

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MELBOURNE FL
900 AM EST FRI FEB 13 2009

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-132100-
COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE
OUT 20 NM-
COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN
INLET OUT 20 NM-
COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO
60 NM OFFSHORE-
WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO
60 NM OFFSHORE-
WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE-
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
900 AM EST FRI FEB 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...FIRE WEATHER IMPACT...
DUE TO DRY AIR FILTERING INTO THE AREA FROM THE NORTH...THERE IS A
FIRE WEATHER THREAT MAINLY ALONG AND WEST OF INTERSTATE FOUR.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
A COLD FRONT IS FORECAST TO PUSH THROUGH THE AREA LATE SUNDAY
NIGHT AND RESULT IN HAZARDOUS BOATING CONDITIONS ON MONDAY.

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

LASCODY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
508 AM EST FRI FEB 13 2009

FLZ041-046-141-147-131300-
COASTAL VOLUSIA-INLAND VOLUSIA-NORTHERN BREVARD-SEMINOLE-
508 AM EST FRI FEB 13 2009

...PATCHY DENSE FOG LOWERING VISIBILITIES THIS MORNING...

PATCHY DENSE FOG WILL REDUCE VISIBILITIES TO A QUARTER MILE OR
LESS FROM VOLUSIA COUNTY ACROSS SANFORD TO NORTH BREVARD COUNTY.
CONDITIONS WILL START TO IMPROVE BETWEEN 8 AND 9 AM.

MOTORISTS WHO ENCOUNTER PATCHY DENSE FOG SHOULD SLOW DOWN...USE
LOW BEAM HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE BETWEEN YOUR
VEHICLE AND THE ONE AHEAD OF YOU.

RL