Alert archive / Florida / Red Flag Warnings in 2021
Red Flag Warning 2, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Mar 18, 2021, 3:03 AM EDT for 5 counties in Florida. It took effect at Mar 18, 2021, 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
- Mar 18, 2021, 3:03 AM EDT (07:03 UTC)
- In effect from
- Mar 18, 2021, 2:00 PM EDT
- Expired
- Mar 18, 2021, 7:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Melbourne, FL
Counties Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 55 km from the middle of the area, began a volume at 07:06 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, 7.1 hours before the alert went out and 65 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
- 254 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1402 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
823 WWUS82 KMLB 180703 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 303 AM EDT Thu Mar 18 2021 ...DANGEROUS FIRE WEATHER CONDITIONS ARE EXPECTED THURSDAY AFTERNOON... FLZ044-144-180815- /O.CAN.KMLB.FW.A.0002.210318T1600Z-210318T2300Z/ Northern Lake-Southern Lake- 303 AM EDT Thu Mar 18 2021 The National Weather Service in Melbourne has cancelled the Fire Weather Watch. Critical fire weather conditions are not expected across Lake County, with minimum RH values expected to remain above 40 percent. $$ FLZ041-045>047-053-054-058-059-064-141-147-182300- /O.UPG.KMLB.FW.A.0002.210318T1600Z-210318T2300Z/ /O.NEW.KMLB.FW.W.0002.210318T1800Z-210318T2300Z/ Inland Volusia-Orange-Seminole-Southern Brevard-Osceola- Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 303 AM EDT Thu Mar 18 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM THIS EVENING FOR LOW RELATIVE HUMIDITY, STRONG GUSTY SOUTHWEST WINDS, VERY HIGH DISPERSION, AND DRY GROUND CONDITIONS... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from 2 PM this afternoon to 7 PM EDT this evening. The Fire Weather Watch is no longer in effect. The National Weather Service in Melbourne has issued a Fire Weather Watch, which is in effect from Thursday afternoon through Thursday evening. * AFFECTED AREA...Inland Volusia... Northern Lake... Orange... Seminole... Southern Brevard... Osceola... Indian River... Okeechobee... St. Lucie... Martin... Coastal Volusia... Southern Lake... Northern Brevard. * WIND...Sustained near 20 mph gusting to around 30 mph. * HUMIDITY...In the mid to upper 30s. * DISPERSION...Values between 90 and 110. * IMPACTS...Any new or smoldering fires will spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
1 follow-up statement
945 WWUS82 KMLB 180715 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 315 AM EDT Thu Mar 18 2021 ...DANGEROUS FIRE WEATHER CONDITIONS EXPECTED THIS AFTERNOON... FLZ041-045>047-053-054-058-059-064-141-147-182300- /O.CON.KMLB.FW.W.0002.210318T1800Z-210318T2300Z/ Inland Volusia-Orange-Seminole-Southern Brevard-Osceola- Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 315 AM EDT Thu Mar 18 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM THIS EVENING FOR LOW RELATIVE HUMIDITY, STRONG GUSTY SOUTHWEST WINDS, VERY HIGH DISPERSION, AND DRY GROUND CONDITIONS... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from 2 PM this afternoon through 7 PM this 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...Sustained near 20 mph gusting to around 30 mph. * HUMIDITY...In the mid to upper 30s. * DISPERSION...Values between 90 and 110. * IMPACTS...Any new or smoldering fires will 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. && $$
Nearby
Red Flag Warnings in Florida, 2021Every red flag warning in 2021
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.