Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 35, NWS Tallahassee, FL
NWS Tallahassee, FL issued this red flag warning at Apr 12, 2011, 4:38 AM CDT for 13 counties in Florida. It took effect at Apr 12, 2011, 1:00 PM CDT. It was in force for 4 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 12, 2011, 4:38 AM CDT (09:38 UTC)
- In effect from
- Apr 12, 2011, 1:00 PM CDT
- Expired
- Apr 12, 2011, 5:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Tallahassee, FL
Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL
The radar
The Tallahassee radar (KTLH), 60 km from the middle of the area, began a volume at 09:39 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.6 hours before the alert went out and 63 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
- 867 J/kg
- Mixed-layer CIN
- -282 J/kg
- Mixed-layer LCL
- 1008 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
767 WWUS82 KTAE 120938 RFWTAE URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TALLAHASSEE FL 538 AM EDT TUE APR 12 2011 ...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON TO 6 PM EDT /5 PM CDT/ THIS EVENING FOR MUCH OF THE INTERIOR EASTERN FLORIDA PANHANDLE AND WESTERN FLORIDA BIG BEND... ...FIRE WEATHER WATCH IS CANCELLED FOR THE COASTAL ZONES ALONG THE FLORIDA PANHANDLE FROM WALTON COUNTY TO FRANKLIN COUNTY... .DISCUSSION...SHOWERS WILL EXIT THE REGION EARLY THIS MORNING WITH A MUCH DRIER AIRMASS ARRIVING FROM THE NORTHWEST ON GUSTY WINDS. RELATIVE HUMIDITY VALUES WILL DROP INTO THE LOWER 30S DURING THE AFTERNOON HOURS FOR MUCH OF THE AREA. HIGHER VALUES WILL BE FOUND ALONG THE COAST...AND ALSO ACROSS THE SOUTHEASTERN FLORIDA BIG BEND. HIGH DISPERSION INDICES WILL COMBINE WITH THE LOW RELATIVE HUMIDITY TO PRODUCE RED FLAG CONDITIONS ACROSS MUCH OF THE INTERIOR FLORIDA BIG BEND AND WESTERN FLORIDA PANHANDLE THIS AFTERNOON AND EARLY EVENING. FLZ108-112-114-115-121045- /O.CAN.KTAE.FW.A.0028.110412T1900Z-110412T2300Z/ SOUTH WALTON-COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN- 538 AM EDT TUE APR 12 2011 /438 AM CDT TUE APR 12 2011/ ...FIRE WEATHER WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE FIRE WEATHER WATCH. $$ FLZ007>019-026-027-118-127-122200- /O.UPG.KTAE.FW.A.0028.110412T1900Z-110412T2300Z/ /O.NEW.KTAE.FW.W.0035.110412T1800Z-110412T2200Z/ INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY- CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON- MADISON-LIBERTY-INLAND WAKULLA-COASTAL JEFFERSON-COASTAL WAKULLA- 538 AM EDT TUE APR 12 2011 /438 AM CDT TUE APR 12 2011/ ...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON TO 6 PM EDT /5 PM CDT/ THIS EVENING... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON TO 6 PM EDT /5 PM CDT/ THIS EVENING FOR MUCH OF THE INTERIOR EASTERN FLORIDA PANHANDLE AND WESTERN FLORIDA BIG BEND. RELATIVE HUMIDITY WILL DROP BELOW CRITICAL LEVELS FOR A BRIEF TIME THIS AFTERNOON AND COMBINE WITH HIGH DISPERSION INDICES ABOVE 75 TO PRODUCE RED FLAG CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY WILL ENHANCE FIRE GROWTH POTENTIAL. && $$ MROCZKA
1 follow-up statement
754 WWUS82 KTAE 121856 RFWTAE URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TALLAHASSEE FL 256 PM EDT TUE APR 12 2011 ...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS EVENING FOR MUCH OF THE INTERIOR EASTERN FLORIDA PANHANDLE AND WESTERN FLORIDA BIG BEND DUE TO THE COMBINATION OF LOW RELATIVE HUMIDITY AND HIGH DISPERSION... ...A FIRE WEATHER WATCH IS IN EFFECT WEDNESDAY AFTERNOON FOR PORTIONS OF THE FLORIDA PANHANDLE DUE TO LONG DURATIONS OF LOW RELATIVE HUMIDITY COMBINED WITH THE POSSIBILITY OF HIGH ERC VALUES... ...A FIRE WEATHER WATCH IS IN EFFECT WEDNESDAY AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL GEORGIA DUE TO LONG DURATIONS OF LOW RELATIVE HUMIDITY... .DRY AIR WILL CONTINUE TO MOVE INTO THE AREA ON WEDNESDAY BEHIND THE COLD FRONT THAT PASSED THROUGH THE AREA TODAY. LONG DURATIONS OF LOW RELATIVE HUMIDITY ARE EXPECTED ON WEDNESDAY ACROSS THE FLORIDA ZONES...BUT RED FLAG CONDITIONS WILL DEPEND ON THE ERC VALUES SINCE DISPERSIONS AND 20 FOOT WINDS ARE FORECAST TO BE BELOW CRITERIA. HIGHLIGHTED A WATCH FOR THE COUNTIES IN FLORIDA THAT ARE FORECAST TO HAVE FAIRLY HIGH ERC VALUES TODAY...AND ASSUMING SIMILAR VALUES ARE FORECAST AGAIN TOMORROW...PARTS OR ALL OF THE WATCH MAY BE TRANSITIONED TO EITHER A STATEMENT OR A WARNING. MARGINALLY LONG DURATIONS OF LOW RELATIVE HUMIDITY ARE ALSO EXPECTED ACROSS PORTIONS OF SOUTHWEST GEORGIA ON WEDNESDAY AFTERNOON AND HAVE ISSUED A WATCH FOR THAT REGION AS WELL. FLZ012-013-016-017-026-027-130000- /O.NEW.KTAE.FW.A.0029.110413T1700Z-110414T0000Z/ /O.CON.KTAE.FW.W.0035.000000T0000Z-110412T2200Z/ INLAND BAY-CALHOUN-GADSDEN-LEON-LIBERTY-INLAND WAKULLA- 256 PM EDT TUE APR 12 2011 /156 PM CDT TUE APR 12 2011/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING. A RED FLAG WARNING ALSO REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY WILL ENHANCE FIRE GROWTH POTENTIAL. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ FLZ007>011-014-015-018-019-118-127-122200- /O.CON.KTAE.FW.W.0035.000000T0000Z-110412T2200Z/ INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON- INLAND GULF-INLAND FRANKLIN-INLAND JEFFERSON-MADISON- COASTAL JEFFERSON-COASTAL WAKULLA- 256 PM EDT TUE APR 12 2011 /156 PM CDT TUE APR 12 2011/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY WILL ENHANCE FIRE GROWTH POTENTIAL. && $$ FLZ112-130000- /O.NEW.KTAE.FW.A.0029.110413T1700Z-110414T0000Z/ COASTAL BAY- 156 PM CDT TUE APR 12 2011 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ GAZ120>131-142>148-155>161-130000- /O.NEW.KTAE.FW.A.0029.110413T1800Z-110413T2300Z/ QUITMAN-CLAY-RANDOLPH-CALHOUN-TERRELL-DOUGHERTY-LEE-WORTH-TURNER- TIFT-BEN HILL-IRWIN-EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK- BERRIEN-SEMINOLE-DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- 256 PM EDT TUE APR 12 2011 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ DVD
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 1:56 PM CDT | Fire Weather Watch | TAE | Bay, Calhoun, Gadsden, Leon, Wakulla | 14 hr |
| Apr 12, 6:51 PM CDT | Red Flag Warning | TAE | Leon, Wakulla | 24 hr |
Nearby
Red Flag Warnings in Florida, 2011Every red flag warning in 2011
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.