Alert archive / Florida / Red Flag Warnings in 2012
Red Flag Warning 13, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Apr 23, 2012, 3:49 AM EDT for 6 counties in Florida. It took effect at Apr 23, 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 23, 2012, 3:49 AM EDT (07:49 UTC)
- In effect from
- Apr 23, 2012, 12:00 PM EDT
- Expired
- Apr 23, 2012, 8:00 PM EDT
- In force
- 8 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 07:48 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, 7.8 hours before the alert went out and 139 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
- 1049 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
394 WWUS82 KMLB 230749 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 349 AM EDT MON APR 23 2012 FLZ041-044>047-053-054-058-059-064-141-144-147-240000- /O.UPG.KMLB.FW.A.0011.120423T1600Z-120424T0000Z/ /O.NEW.KMLB.FW.W.0013.120423T1600Z-120424T0000Z/ /O.NEW.KMLB.FW.A.0012.120424T1500Z-120424T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 349 AM EDT MON APR 23 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR MIN RHS BELOW 35 PERCENT AND WINDS 15 TO 20 MPH FOR ALL EAST CENTRAL FLORIDA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR LONG DURATIONS OF RH BELOW 35 PERCENT AND ERC VALUES NEAR 35 OR ABOVE FOR ALL EAST CENTRAL FLORIDA COUNTIES... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE WEATHER WATCH IS IN EFFECT FROM TLATE TUESDAY MORNING THROUGH EARLY TUESDAY EVENING. * AFFECTED AREA... INLAND VOLUSIA... NORTHERN LAKE... ORANGE... SEMINOLE... SOUTHERN BREVARD... OSCEOLA... INDIAN RIVER... OKEECHOBEE... ST. LUCIE... MARTIN... COASTAL VOLUSIA... SOUTHERN LAKE... NORTHERN BREVARD. * WIND...WEST TO NORTHWEST WINDS WILL BECOME GUSTY AND INCREASE UP TO 15 TO 20 MPH. * HUMIDITY...RELATIVE HUMIDITY VALUES ARE EXPECTED TO FALL BETWEEN 25 TO 30 PERCENT FOR 4 TO 6 HOURS. * 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 LIKELY OCCUR WITHIN THE NEXT 24 HOURS. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS...LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE POSSIBLE BETWEEN 24 AND 72 HOURS. && $$
1 follow-up statement
002 WWUS82 KMLB 232359 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 759 PM EDT MON APR 23 2012 FLZ041-044>047-053-054-058-059-064-141-144-147-241000- /O.EXP.KMLB.FW.W.0013.000000T0000Z-120424T0000Z/ /O.CON.KMLB.FW.A.0012.120424T1500Z-120424T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 759 PM EDT MON APR 23 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING FOR ALL OF EAST CENTRAL FLORIDA... ...FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY FOR LONG DURATION OF CRITICAL RH AND 20 FOOT WINDS NEAR 15 MPH FOR ALL OF EAST CENTRAL FLORIDA... THE FIRE WEATHER WATCH IS IN EFFECT FROM 11 AM TO 8 PM TUESDAY. * AFFECTED AREA... VOLUSIA... LAKE... ORANGE... SEMINOLE... BREVARD... OSCEOLA... INDIAN RIVER... OKEECHOBEE... ST. LUCIE... MARTIN. * WIND...WEST TO NORTHWEST WINDS 10 TO 15 MPH WITH A FEW HIGHER GUSTS ESPECIALLY IN THE LATE MORNING AND EARLY AFTERNOON. * HUMIDITY...RELATIVE HUMIDITY VALUES ARE EXPECTED TO FALL AROUND 20 PERCENT FOR 4 TO 5 HOURS. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS...LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE POSSIBLE BETWEEN 24 AND 72 HOURS. && $$ KELLY
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 3:49 AM EDT | Fire Weather Watch | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 24 hr |
| Apr 23, 3:50 AM EDT | Lake Wind Advisory | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 16 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.