Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 29, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Mar 11, 2007, 1:16 PM EDT for 6 counties in Florida. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 11, 2007, 1:16 PM EDT (17:16 UTC)
- Expired
- Mar 11, 2007, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Tampa Bay, FL
Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Pinellas County, FL, Polk County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 49 km from the middle of the area, began a volume at 17:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 5.3 hours before the alert went out and 49 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- -19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS82 KTBW 111716 RFWTBW RED FLAG WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 116 PM EDT SUN MAR 11 2007 ...RED FLAG WARNING IN EFFECT FOR ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA FOR 4 OR MORE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT... .VERY DRY AIR ABOVE THE SURFACE WILL MIX DOWN WITH AFTERNOON HEATING RESULTING IN CRITICAL RELATIVE HUMIDITIES TODAY. FLZ039-042-043-048>052-055>057-060>062-065-120000- /O.NEW.KTBW.FW.W.0029.070311T1716Z-070312T0000Z/ LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 116 PM EDT SUN MAR 11 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING. DEW POINTS ARE FALLING INTO THE MIDDLE 40S AT THIS TIME... RESULTING IN RELATIVE HUMIDITIES BETWEEN 30 AND 35 PERCENT. DEW POINTS MAY CONTINUE TO FALL FOR ANOTHER HOUR OR SO...WITH RELATIVE HUMIDITY VALUES DROPPING INTO THE MID 20S THIS AFTERNOON. AN EAST COAST SEA BREEZE WILL BRING HIGHER MOISTURE LEVELS INTO FAR EASTERN AREAS THIS AFTERNOON...BUT THE FURTHER WEST YOU GO...THE LONGER THE DURATION OF CRITICAL RELATIVE HUMIDITIES WILL BE. WITH THE WEST COAST SEA BREEZE REMAINING PINNED CLOSE TO THE COAST TODAY...AREAS JUST EAST OF THE GULF BREEZE WILL SEE UP TO 7 HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT. ON AVERAGE...4 TO 6 HOUR DURATIONS ARE EXPECTED. A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. $$
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tampa Bay, FL wrote its last area forecast discussion before this red flag warning went out at Mar 11, 9:00 AM EDT, 4 hours 16 minutes earlier.
Area forecast discussion, Mar 11, 9:00 AM EDT, 4 hours 16 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 900 AM EDT SUN MAR 11 2007 .DISCUSSION...SOME LOW CLOUDS AND FOG HAVE SPREAD SOUTH AND WEST ACROSS THE NATURE COAST AND INTO PORTIONS OF THE TAMPA BAY REGION EARLY THIS MORNING. THESE CLOUDS AND FOG SHOULD GRADUALLY LIFT AND DISSIPATE THIS MORNING WITH MAINLY SUNNY SKIES PREVAILING FOR THE REST OF THE DAY. SHOULD SEE A SEA BREEZE ONCE AGAIN TODAY...BUT FLOW IS LITTLE STRONGER OUT OF THE EAST NORTHEAST SO EXPECT WIND SHIFT TO REMAIN NEAR THE COAST AND NOT PUSH AS FAR INLAND AS YESTERDAY. OVERALL THE CURRENT FORECAST LOOKS ON TRACK AND WILL ONLY UPDATE TO REMOVE THE FOG MENTION FROM TODAY IN AN HOUR OR SO. && .MARINE...WINDS AND SEAS WILL REMAIN BELOW FLAG CRITERIA WITH AN EAST TO NORTHEAST FLOW CONTINUING OVER THE NEXT COUPLE OF DAYS... EXCEPT FOR A SHIFT TO ONSHORE NEAR THE COAST EACH AFTERNOON WITH THE SEA BREEZE. PRESENT MARINE FORECAST LOOKS GOOD WITH NO MAJOR CHANGES PLANNED FOR LATE MORNING FORECAST. && .AVIATION...A LARGE AREA OF FOG...LOCALLY DENSE...IS MOVING SOUTHWEST TOWARD THE TPA/PIE TERMINALS WITH SOME OTHER PATCHES OVER SOUTH CENTRAL AND SOUTHWEST FLORIDA. WITH THE SUN ALREADY UP...EXPECT JUST SOME MVFR VISIBILITIES AT THE TERMINALS FOR MAYBE ANOTHER HOUR BEFORE THE FOG BURNS OFF COMPLETELY. VFR CONDITIONS WILL THEN PREVAIL THROUGH THE REMAINDER OF THE DAY. && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && DISCUSSION/MARINE...PRC AVIATION...EJ
Hazardous weather outlook, Mar 11, 5:12 AM EDT, 8 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 512 AM EDT SUN MAR 11 2007 FLZ039-042-043-048>052-055>057-060>062-065-111400- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 512 AM EDT SUN MAR 11 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...FIRE WEATHER IMPACT... DRIER AIR WILL RETURN TO WEST CENTRAL AND SOUTHWEST FLORIDA TODAY AND MONDAY. THE DRY CONDITIONS WILL MAINTAIN A THREAT FOR THE SPREAD OF WILDFIRES ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA BOTH DAYS. RELATIVE HUMIDITY VALUES ARE EXPECTED TO FALL CLOSE TO 35 PERCENT FOR A FEW HOURS IN MANY LOCATIONS AWAY FROM THE GULF COAST EACH AFTERNOON. OUTDOOR BURNING OF ANY KIND IS GENERALLY DISCOURAGED DUE TO THE DRY GROUND AND EXPECTED LOW HUMIDITY VALUES. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. DRY PLEASANT WEATHER IS EXPECTED ACROSS THE REGION MONDAY THROUGH WEDNESDAY AS HIGH PRESSURE OVER THE SOUTHEASTERN U.S. REMAINS IN CONTROL. BY LATE WEDNESDAY AN UPPER LEVEL LOW OVER SOUTHEAST TEXAS IS EXPECTED TO DRIFT SLOWLY EAST ACROSS THE NORTHERN GULF REGION THROUGH THURSDAY...CROSSING FLORIDA ON FRIDAY THEN EXITING INTO THE WESTERN ATLANTIC ON SATURDAY. AS THIS LOW MOVES EASTWARD INCREASING MOISTURE ALONG AND AHEAD OF AN ATTENDANT SURFACE COLD FRONT WILL INCREASE CHANCES FOR SHOWERS AND THUNDERSTORMS OVER WEST CENTRAL AND SOUTHWEST FLORIDA DURING THURSDAY AND FRIDAY. PLEASANT DRY WEATHER WILL RETURN TO THE REGION ON SATURDAY AS HIGH PRESSURE BUILDS IN FROM THE NORTH. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. MCMICHAEL
Nearby
Red Flag Warnings in Florida, 2007Every red flag warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.