Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 11, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Mar 24, 2011, 4:37 AM EDT for 6 counties in Florida. It took effect at Mar 24, 2011, 12:00 PM EDT. It was in force for 7 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
- Mar 24, 2011, 4:37 AM EDT (08:37 UTC)
- In effect from
- Mar 24, 2011, 12:00 PM EDT
- Expired
- Mar 24, 2011, 7:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 08:42 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
Cape Canaveral, FL (KXMR), launched 00:00Z, 8.6 hours before the alert went out and 73 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
- 1445 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
046 WWUS82 KMLB 240837 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 437 AM EDT THU MAR 24 2011 FLZ041-044>047-053-054-058-059-064-141-144-147-242300- /O.NEW.KMLB.FW.W.0011.110324T1600Z-110324T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 437 AM EDT THU MAR 24 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING. WEST-SOUTHWEST SURFACE AND TRANSPORT WINDS WILL INCREASE TO AROUND 15 MPH WITH HIGHER GUSTS LATE THIS MORNING ACROSS EAST CENTRAL FLORIDA. THIS WILL ALLOW TEMPERATURES TO CLIMB INTO THE MID TO UPPER 80S...BRINGING AFTERNOON RELATIVE HUMIDITIES DOWN TO 3O TO 35 PERCENT. THE COMBINATION OF WIND AND LOW RELATIVE HUMIDITY THIS AFTERNOON WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR WITHIN THE NEXT 24 HOURS. && $$
1 follow-up statement
293 WWUS82 KMLB 242313 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 713 PM EDT THU MAR 24 2011 FLZ041-044>047-053-054-058-059-064-141-144-147-250015- /O.EXP.KMLB.FW.W.0011.000000T0000Z-110324T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 713 PM EDT THU MAR 24 2011 ...RED FLAG WARNING HAS EXPIRED... THE RED FLAG WARNING IS NO LONGER IN EFFECT. RELATIVE HUMIDITY VALUES HAVE RISEN ABOVE CRITICAL LEVELS ACROSS THE AREA AND THEREFORE THE RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER GUSTY WEST WINDS UP TO 15 TO 20 MPH WILL CONTINUE AT LEAST THROUGH SUNSET. $$ WEITLICH
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.