Alert archive / Florida / Red Flag Warnings in 2018
Red Flag Warning 1, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Mar 7, 2018, 10:41 AM EST for 6 counties in Florida. It took effect at Mar 7, 2018, 11:00 AM EST. 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
- Mar 7, 2018, 10:41 AM EST (15:41 UTC)
- In effect from
- Mar 7, 2018, 11:00 AM EST
- Expired
- Mar 7, 2018, 7:00 PM EST
- 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 15:42 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 12:00Z, 3.7 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
- 756 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 331 m²/s²
- 0-3 km storm-relative helicity
- 307 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
953 WWUS82 KMLB 071541 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 1041 AM EST Wed Mar 7 2018 ...RELATIVE HUMIDITY VALUES PLUMMETING AS MUCH DRIER AIR SURGES SOUTHWARD ACROSS EAST CENTRAL FLORIDA BEHIND A COLD FRONT... FLZ041-044>047-053-054-058-059-064-141-144-147-080000- /O.NEW.KMLB.FW.W.0001.180307T1600Z-180308T0000Z/ Inland Volusia County-Northern Lake County-Orange-Seminole- Southern Brevard County-Osceola-Indian River-Okeechobee-St. Lucie- Martin-Coastal Volusia County-Southern Lake County- Northern Brevard County- 1041 AM EST Wed Mar 7 2018 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY VALUES COUPLED WITH GUSTY NORTHWEST WINDS OF UP TO 15 MPH. The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect until 7 PM EST this evening. * AFFECTED AREA... Inland Volusia County... Northern Lake County... Orange... Seminole... Southern Brevard County... Osceola... Indian River... Okeechobee... St. Lucie... Martin... Coastal Volusia County... Southern Lake County... Northern Brevard County. * WIND...SUSTAINED WINDS OF AROUND 15 MPH, GUSTING ABOVE 20 TO 25 MPH AT TIMES. * HUMIDITY...RAPIDLY FALLING INTO THE LOWER 20S. * 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. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
1 follow-up statement
790 WWUS82 KMLB 080021 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 721 PM EST Wed Mar 7 2018 ...Another very dry day in store on Thursday with breezy northwest winds... FLZ041-044>047-053-054-058-059-064-141-144-147-081100- /O.EXP.KMLB.FW.W.0001.000000T0000Z-180308T0000Z/ /O.NEW.KMLB.FW.A.0001.180308T1600Z-180309T0000Z/ Inland Volusia County-Northern Lake County-Orange-Seminole- Southern Brevard County-Osceola-Indian River-Okeechobee-St. Lucie- Martin-Coastal Volusia County-Southern Lake County- Northern Brevard County- 721 PM EST Wed Mar 7 2018 ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY VALUES COUPLED WITH GUSTY NORTHWEST WINDS OF UP TO 15 MPH... The National Weather Service in Melbourne has issued a Fire Weather Watch, which is in effect from Thursday morning through Thursday evening. * AFFECTED AREA... Inland Volusia County... Northern Lake County... Orange... Seminole... Southern Brevard County... Osceola... Indian River... Okeechobee... St. Lucie... Martin... Coastal Volusia County... Southern Lake County... Northern Brevard County. * WIND...SUSTAINED WINDS OF AROUND 15 MPH, GUSTING ABOVE 20 MPH AT TIMES. * HUMIDITY...RAPIDLY FALLING INTO THE MID TO UPPER 20S. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ SEDLOCK
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 4:19 AM EST | Rip Current Statement | MLB | Volusia | 15 hr |
| Mar 7, 4:19 AM EST | High Surf Advisory | MLB | Volusia | 12 hr |
Nearby
Red Flag Warnings in Florida, 2018Every red flag warning in 2018
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.