Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 37, NWS Tallahassee, FL
NWS Tallahassee, FL issued this red flag warning at Apr 13, 2011, 8:42 PM EDT for Leon County, Wakulla County, Florida. It took effect at Apr 14, 2011, 2:00 PM EDT. It was in force for 5 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 13, 2011, 8:42 PM EDT (00:42 UTC)
- In effect from
- Apr 14, 2011, 2:00 PM EDT
- Expired
- Apr 14, 2011, 7:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Tallahassee, FL
Counties Leon County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 11 km from the middle of the area, began a volume at 00:47 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, 0.7 hours before the alert went out and 11 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
- 3089 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
461 WWUS82 KTAE 140042 RFWTAE URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TALLAHASSEE FL 842 PM EDT WED APR 13 2011 ...A RED FLAG WARNING IS NOW IN EFFECT FROM 2 PM TO 7 PM EDT THURSDAY FOR LEON AND WAKULLA COUNTIES IN THE FLORIDA BIG BEND DUE TO A COMBINATION OF LONG DURATIONS OF LOW RELATIVE HUMIDITY AND FORECAST ERC VALUES OF 35 OR GREATER... .LONG DURATIONS OF LOW RELATIVE HUMIDITY WILL PERSIST THURSDAY AFTERNOON ACROSS THE FLORIDA ZONES...AND THIS COMBINED WITH ERC VALUES OF 35 OR GREATER OVER LEON AND WAKULLA COUNTIES HAS PROMPTED AN UPGRADE OF THE FIRE WEATHER WATCH TO A RED FLAG WARNING FOR THURSDAY AFTERNOON. AS WAS THE CASE ON WEDNESDAY...WILL ISSUE A FIRE WEATHER STATEMENT SHORTLY FOR THE SAME FLORIDA COUNTIES WITH EXPECTED ERC READINGS BETWEEN 30 AND 34. ACROSS THE GEORGIA AND ALABAMA ZONES...ALTHOUGH RELATIVE HUMIDITY VALUES MAY APPROACH 25 PERCENT THURSDAY AFTERNOON...LONG DURATIONS ARE NOT EXPECTED. A GRADUAL MOISTENING TREND WILL COMMENCE ON FRIDAY AHEAD OF THE NEXT FRONTAL BOUNDARY. FLZ009>013-016-026-140145- /O.CAN.KTAE.FW.A.0030.110414T1800Z-110414T2300Z/ HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-GADSDEN-LIBERTY- 842 PM EDT WED APR 13 2011 /742 PM CDT WED APR 13 2011/ ...THE FIRE WEATHER WATCH HAS BEEN CANCELLED FOR THURSDAY AFTERNOON DUE TO FORECAST ERC VALUES LESS THAN 35... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE FIRE WEATHER WATCH DUE TO FORECAST ERC VALUES LESS THAN 35...BUT A FIRE WEATHER STATEMENT WILL BE ISSUED FOR THESE COUNTIES SHORTLY. $$ FLZ017-027-127-142300- /O.UPG.KTAE.FW.A.0030.110414T1800Z-110414T2300Z/ /O.NEW.KTAE.FW.W.0037.110414T1800Z-110414T2300Z/ LEON-INLAND WAKULLA-COASTAL WAKULLA- 842 PM EDT WED APR 13 2011 ...A RED FLAG WARNING IS NOW IN EFFECT FROM 2 PM TO 7 PM EDT THURSDAY DUE TO LONG DURATIONS OF RELATIVE HUMIDITY BELOW 35 PERCENT AND FORECAST ERC VALUES OF 35 OR GREATER... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 2 PM TO 7 PM EDT THURSDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY WILL ENHANCE FIRE GROWTH POTENTIAL. && $$ 17-GOULD
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.