Alert archive / Florida / Red Flag Warnings in 2012
Red Flag Warning 19, NWS Tallahassee, FL
NWS Tallahassee, FL issued this red flag warning at Apr 6, 2012, 5:00 PM CDT for 16 counties in Florida. It took effect at Apr 7, 2012, 11:00 AM CDT. 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 6, 2012, 5:00 PM CDT (22:00 UTC)
- In effect from
- Apr 7, 2012, 11:00 AM CDT
- Expired
- Apr 7, 2012, 7:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Tallahassee, FL
Counties Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL
The radar
The Tallahassee radar (KTLH), 32 km from the middle of the area, began a volume at 21:59 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 12:00Z, 10.0 hours before the alert went out and 35 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
- 1429 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
835 WWUS82 KTAE 062200 RFWTAE URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TALLAHASSEE FL 600 PM EDT FRI APR 6 2012 ...A RED FLAG WARNING IS IN EFFECT FROM NOON EDT /11 AM CDT/ TO 8 PM EDT /7 PM CDT/ SATURDAY FOR ALL OF THE FLORIDA PANHANDLE AND BIG BEND DUE TO THE COMBINATION OF LOW RELATIVE HUMIDITY...DISPERSION OF 75 OR HIGHER AND ERC VALUES OF 20 OR GREATER... .RED FLAG CONDITIONS ARE NOW EXPECTED ACROSS ALL OF OUR NORTH FLORIDA COUNTIES ON SATURDAY DUE TO THE COMBINATION OF LOW RELATIVE HUMIDITY...HIGH DISPERSION AND ERC VALUES OF 20 OR GREATER. ADDITIONALLY...SUSTAINED WINDS MAY BRIEFLY EXCEED 15 MPH. IT WILL ALSO BE DRY ACROSS OUR ALABAMA AND GEORGIA COUNTIES SATURDAY BUT RED FLAG CRITERIA WILL NOT BE. MET. THE DRY AIR MASS WILL REMAIN IN OUR AREA THROUGH SUNDAY...KEEPING RELATIVE HUMIDITY VALUES LOW. FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-071130- /O.NEW.KTAE.FW.W.0019.120407T1600Z-120408T0000Z/ INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY- CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON- MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE- INLAND DIXIE-SOUTH WALTON-COASTAL BAY-COASTAL GULF- COASTAL FRANKLIN-COASTAL JEFFERSON-COASTAL WAKULLA-COASTAL TAYLOR- COASTAL DIXIE- 600 PM EDT FRI APR 6 2012 /500 PM CDT FRI APR 6 2012/ ...RED FLAG WARNING IN EFFECT FROM NOON EDT /11 AM CDT/ TO 8 PM EDT /7 PM CDT/ SATURDAY. * AFFECTED AREA...ALL OF THE FLORIDA PANHANDLE AND BIG BEND. * WIND...NORTHEAST 10 TO 15 MPH WITH GUSTS OVER 20 MPH. * HUMIDITY...20 TO 30 PERCENT. * DISPERSION...75 TO 85. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. 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. && $$ BARRY
1 follow-up statement
031 WWUS82 KTAE 070803 RFWTAE URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TALLAHASSEE FL 403 AM EDT SAT APR 7 2012 ...A RED FLAG WARNING IN EFFECT FOR ALL OF NORTH FLORIDA FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7 PM CDT/ THIS EVENING DUE TO LOW RELATIVE HUMIDITY COUPLED WITH HIGH DISPERSIONS AND ERC VALUES ABOVE 20... .DRY CONDITIONS DUE TO SINKING AIR ON THE BACKSIDE OF THE DEPARTING EAST COAST TROUGH...AND SURFACE HIGH PRESSURE SETTLING IN FROM THE NORTH WILL ALLOW RELATIVE HUMIDITIES TO FALL TO CRITICAL LEVELS REGION WIDE. A RED FLAG WARNING WILL REMAIN IN EFFECT ACROSS NORTH FLORIDA DUE TO CRITICAL RH VALUES...HIGH DISPERSIONS...AND ERC VALUES GREATER THAN 20. CRITICAL RH LEVELS WILL BE REACHED IN FLORIDA ON SUNDAY...HOWEVER THE DETERMINATION ON A WARNING WILL HAVE TO BE MADE ONCE THE NEW ERC VALUES COME IN LATER THIS AFTERNOON AS NO OTHER CRITERIA WILL WARRANT A WARNING. FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-080000- /O.CON.KTAE.FW.W.0019.120407T1600Z-120408T0000Z/ INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY- CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON- MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE- INLAND DIXIE-SOUTH WALTON-COASTAL BAY-COASTAL GULF- COASTAL FRANKLIN-COASTAL JEFFERSON-COASTAL WAKULLA-COASTAL TAYLOR- COASTAL DIXIE- 403 AM EDT SAT APR 7 2012 /303 AM CDT SAT APR 7 2012/ ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR ALL OF NORTH FLORIDA... * AFFECTED AREA...ALL OF NORTH FLORIDA. * WIND...NORTHEAST 10 TO 15 MPH. * HUMIDITY...20 TO 35 PERCENT. * DISPERSION...75 TO 80. * ERC...27 TO 34. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. 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. && $$ HARRIGAN
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 1:49 PM CDT | Small Craft Advisory | TAE | 20 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.