Alert archive / Florida / Red Flag Warnings in 2012
Red Flag Warning 23, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Apr 25, 2012, 5:37 AM EDT for Polk County, Florida. It took effect at Apr 25, 2012, 12:00 PM EDT. 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
- Apr 25, 2012, 5:37 AM EDT (09:37 UTC)
- In effect from
- Apr 25, 2012, 12:00 PM EDT
- Expired
- Apr 25, 2012, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Tampa Bay, FL
County Polk County, FL
The radar
The Tampa radar (KTBW), 74 km from the middle of the area, began a volume at 09:36 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 00:00Z, 9.6 hours before the alert went out and 74 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
- 1969 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
904 WWUS82 KTBW 250937 RFWTBW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 537 AM EDT WED APR 25 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY THROUGH THIS EVENING FOR POLK...LEE...HERNANDO AND PASCO COUNTIES DUE TO LONG DURATIONS OF LOW RH VALUES AND HIGH ERC VALUES... .HIGH PRESSURE WILL BE ACROSS THE FLORIDA PENINSULA TODAY AND KEEPING A DRY AIR MASS IN PLACE. LOW RELATIVE HUMIDITY AND SEVERAL AREAS WITH HIGH ERC VALUES WILL COMBINE FOR RED FLAG CRITERIA TODAY. FLZ043-051-055>057-060>062-251045- /O.CAN.KTBW.FW.A.0011.120425T1700Z-120425T2300Z/ SUMTER-HILLSBOROUGH-MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO- CHARLOTTE- 537 AM EDT WED APR 25 2012 ...FIRE WEATHER WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS CANCELLED THE FIRE WEATHER WATCH. ALTHOUGH HUMIDITIES MAY EXPERIENCE LONG DURATIONS OF VALUES BELOW 35 PERCENT...ERC VALUES AND WIND SPEEDS WILL REMAIN BELOW WARNING CRITERIA. $$ FLZ052-065-260000- /O.UPG.KTBW.FW.A.0011.120425T1700Z-120425T2300Z/ /O.NEW.KTBW.FW.W.0023.120425T1600Z-120426T0000Z/ POLK-LEE- 537 AM EDT WED APR 25 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LOW HUMIDITIES AND HIGH ERC VALUES... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING. * AFFECTED AREA...POLK...LEE. * WIND...SOUTHEAST WINDS 5 TO 10 MPH BECOMING SOUTHWEST NEAR THE COAST IN THE AFTERNOON. * HUMIDITY...WILL BE BELOW 35 PERCENT FOR AROUND 4 TO 6 HOURS WITH INTERIOR LOCATIONS FALLING TO AROUND 25 PERCENT. * ERC VALUES WILL REACH 35 OR HIGHER. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$ FLZ048-049-260000- /O.NEW.KTBW.FW.W.0023.120425T1600Z-120426T0000Z/ HERNANDO-PASCO- 537 AM EDT WED APR 25 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES AND HIGH ERC VALUES... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING. * AFFECTED AREA...HERNANDO...PASCO. * WIND...SOUTHWEST WINDS 5 TO 10 MPH. * HUMIDITY...WILL BE BELOW 35 PERCENT FOR AROUND 4 TO 6 HOURS WITH INTERIOR LOCATIONS FALLING TO AROUND 25 PERCENT. * ERC VALUES WILL REACH 35 OR HIGHER. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$
1 follow-up statement
420 WWUS82 KTBW 251732 RFWTBW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 132 PM EDT WED APR 25 2012 ...RED FLAG WARNING IN EFFECT THROUGH 8 PM EDT THIS EVENING FOR POLK...LEE...HERNANDO AND PASCO COUNTIES DUE TO LONG DURATIONS OF LOW RH VALUES AND HIGH ERC VALUES... ...FIRE WEATHER WATCH IN EFFECT THURSDAY AFTERNOON AND EVENING FOR POLK AND LEE COUNTIES FOR LONG DURATIONS OF LOW RELATIVE HUMIDITY VALUES AND HIGH ERC VALUES... .HIGH PRESSURE REMAINS OVER THE FLORIDA PENINSULA THROUGH THURSDAY AND KEEPS DRY AIR IN PLACE. LOW RELATIVE HUMIDITY HIGH ERC VALUES WILL COMBINE TO CREATE RED FLAG CONDITIONS. FLZ052-065-270000- /O.NEW.KTBW.FW.A.0012.120426T1700Z-120427T0000Z/ /O.CON.KTBW.FW.W.0023.000000T0000Z-120426T0000Z/ POLK-LEE- 132 PM EDT WED APR 25 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND HIGH ERC VALUES... ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR LOW RELATIVE HUMIDITY AND HIGH ERC VALUES... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING. * AFFECTED AREA...POLK...LEE. * WIND...SOUTHEAST WINDS 5 TO 10 MPH BECOMING SOUTHWEST NEAR THE COAST IN THE AFTERNOON. * HUMIDITY...BELOW 35 PERCENT FOR AROUND 5 HOURS WITH INTERIOR LOCATIONS FALLING TO AROUND 25 PERCENT. * ERC VALUES IN EXCESS OF 35. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD. && $$ FLZ048-049-260000- /O.CON.KTBW.FW.W.0023.000000T0000Z-120426T0000Z/ HERNANDO-PASCO- 132 PM EDT WED APR 25 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND HIGH ERC VALUES... * AFFECTED AREA...HERNANDO...PASCO. * WIND...SOUTHWEST WINDS 5 TO 10 MPH. * HUMIDITY...WILL BE BELOW 35 PERCENT FOR AROUND 4 TO 6 HOURS WITH INTERIOR LOCATIONS FALLING TO AROUND 25 PERCENT. * ERC VALUES IN EXCESS OF 35. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$ LJ
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 1:32 PM EDT | Fire Weather Watch | TBW | Polk | 15 hr |
Nearby
Red Flag Warnings in Florida, 2012Every red flag warning in 2012
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.