Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 3, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Jan 20, 2007, 11:28 AM EST for Polk County, Sumter County, Florida. It was in force for 8 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
- Jan 20, 2007, 11:28 AM EST (16:28 UTC)
- Expired
- Jan 20, 2007, 7:00 PM EST
- In force
- 8 hr
- Issued by
- NWS Tampa Bay, FL
Counties Polk County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 85 km from the middle of the area, began a volume at 16:25 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, 4.5 hours before the alert went out and 86 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
- 967 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 15 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 201628 RFWTBW RED FLAG WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1128 AM EST SAT JAN 20 2007 ...RED FLAG WARNING FOR LONG DURATIONS OF RELATIVE HUMIDITY BELOW 35 PERCENT THIS AFTERNOON ACROSS ALL OF LEVY...CITRUS...SUMTER... PASCO AND HERNANDO COUNTIES...AS WELL AS NORTHEAST HILLSBOROUGH AND NORTHWEST POLK COUNTIES... .VERY DRY AIR HAS MOVED INTO NORTH-CENTRAL FLORIDA...AND RELATIVE HUMIDITY VALUES ARE ALREADY BELOW 35 PERCENT OVER PORTIONS OF THE NATURE COAST. THIS DRY AIR WILL RESULT IN 4 TO 6 HOURS OF CRITICAL RELATIVE HUMIDITIES. FLZ039-042-043-048-049-051-052-210000- /O.NEW.KTBW.FW.W.0003.070120T1628Z-070121T0000Z/ LEVY-CITRUS-SUMTER-HERNANDO-PASCO-HILLSBOROUGH-POLK- 1128 AM EST SAT JAN 20 2007 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM EST THIS EVENING. RELATIVE HUMIDITY VALUES ARE CURRENTLY NEAR OR JUST BELOW 35 PERCENT...AND WILL CONTINUE TO DROP TO AS LOW AS 24 PERCENT OVER LEVY COUNTY...AND AROUND 30 PERCENT OVER THE REMAINDER OF THE WARNED AREA. THIS WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS FOR THE REST OF THE AFTERNOON. A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD. $$
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 Jan 20, 9:15 AM EST, 2 hours 13 minutes earlier.
Area forecast discussion, Jan 20, 9:15 AM EST, 2 hours 13 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY - RUSKIN FL 915 AM EST SAT JAN 20 2007 .FOR THE MORNING UPDATE...HIGH PRESSURE SURFACE AND ALOFT WILL CONTINUE TO HOLD OVER THE REGION WITH PARTLY CLOUDY SKIES AND DRY CONDITIONS. TEMPERATURES WILL BE NEAR CLIMATIC NORMALS...BUT SLIGHTLY WARMER THAN NORMAL OVER SOUTHWEST FLORIDA. AFTERNOON HIGH TEMPERATURES WILL RANGE FROM THE UPPER 60S NORTH...LOWER 70S CENTRAL...TO THE UPPER 70S SOUTH. OVERALL...A VERY NICE AFTERNOON FOR OUTDOOR ACTIVITIES ACROSS THE REGION. CURRENT ZONES ON TRACK WITH NO UPDATES PLANNED. .AVIATION...BRIEF MVFR CONDITIONS IN SHALLOW PATCHY GROUND FOG NEAR FMY/RSW THIS MORNING HAS MIXED OUT LEAVING VFR CONDITIONS FOR THE REST OF THE DAY. && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && SHORT TERM/MARINE/FIRE...PRC LONG TERM/AVIATION...JLC
Hazardous weather outlook, Jan 20, 5:07 AM EST, 6 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 507 AM EST SAT JAN 20 2007 FLZ039-042-043-048>052-201500- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- 507 AM EST SAT JAN 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL FLORIDA INCLUDING THE NATURE COAST. .DAY ONE...TODAY AND TONIGHT HIGH PRESSURE BUILDING IN OVER THE EASTERN U.S. IS BRINGING COOLER AND DRIER AIR INTO THE NATURE COAST AND WEST CENTRAL FLORIDA THIS MORNING. THIS DRIER AIR WILL ALLOW HUMIDITY VALUES TO DROP TO NEAR 35 PERCENT FOR A FEW HOURS DURING THIS AFTERNOON. THESE MARGINALLY LOW HUMIDITY VALUE WILL INCREASE THE SPREAD OF ANY FIRE THAT MAY START TODAY...AND RESIDENTS SHOULD USE EXTRA CARE WITH ANY OUTDOOR OPEN FLAMES TODAY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY FAIR PLEASANT WEATHER IS EXPECTED ON SUNDAY WITH A GRADUAL WARMING TREND. A COLD FRONT WILL APPROACH THE REGION DURING TUESDAY AND MOVE THROUGH THE REGION ON WEDNESDAY. THE FRONT WILL INCREASE CHANCES FOR SOME SHOWERS OR THUNDERSTORMS DURING TUESDAY AND WEDNESDAY THEN COOLER AND DRIER WEATHER IS EXPECTED ON THURSDAY AND FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FLZ055>057-060>062-065-201500- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 507 AM EST SAT JAN 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST FLORIDA AND WEST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT SOME PATCHY FOG MAY BRIEFLY RESTRICT VISIBILITIES TO A MILE OR LESS IN SOME LOCATIONS EARLY THIS MORNING OTHERWISE DRY PLEASANT WEATHER WILL BE THE RULE TODAY. MORNING MOTORISTS SHOULD SLOW DOWN AND EXERCISE CAUTION IF ENCOUNTERING ANY FOG. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY FAIR PLEASANT WEATHER IS EXPECTED ON SUNDAY WITH A GRADUAL WARMING TREND. A COLD FRONT WILL APPROACH THE REGION DURING TUESDAY AND MOVE THROUGH THE REGION ON WEDNESDAY. THE FRONT WILL INCREASE CHANCES FOR SOME SHOWERS OR THUNDERSTORMS DURING TUESDAY AND WEDNESDAY THEN COOLER DRIER WEATHER IS EXPECTED ON THURSDAY AND FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. JCM
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.