Alert archive / Florida / Red Flag Warnings in 2017
Red Flag Warning 17, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at May 12, 2017, 3:22 PM EDT for 4 counties in Florida. It took effect at May 13, 2017, 12:00 PM EDT. It was in force for 3 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
- May 12, 2017, 3:22 PM EDT (19:22 UTC)
- In effect from
- May 13, 2017, 12:00 PM EDT
- Expired
- May 13, 2017, 2:36 PM EDT
- In force
- 3 hr
- Issued by
- NWS Melbourne, FL
Counties Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL
The radar
The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 72 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
- 1811 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
499 WWUS82 KMLB 121922 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 322 PM EDT Fri May 12 2017 ...Very High Wildfire Spread Threat on Saturday... FLZ054-058-059-140000- /O.UPG.KMLB.FW.A.0010.170513T1600Z-170514T0000Z/ /O.NEW.KMLB.FW.W.0017.170513T1600Z-170514T0000Z/ /O.CON.KMLB.FW.W.0016.000000T0000Z-170513T0000Z/ Indian River-Okeechobee-St. Lucie- 322 PM EDT Fri May 12 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT SATURDAY FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from noon to 8 PM EDT Saturday. The * AFFECTED AREA...Indian River...Okeechobee...and St. Lucie counties. * WIND...Southwest around 10 to 15 mph with some higher gusts this afternoon increasing to around 20 mph and gusty Saturday. * HUMIDITY...Minimum RH values 25 to 30 percent this afternoon and 30 to 35 percent Saturday afternoon. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. 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. && $$ FLZ045>047-053-064-147-140000- /O.CON.KMLB.FW.W.0016.000000T0000Z-170513T0000Z/ /O.CON.KMLB.FW.A.0010.170513T1600Z-170514T0000Z/ Orange-Seminole-Southern Brevard County-Osceola-Martin- Northern Brevard County- 322 PM EDT Fri May 12 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... A Red Flag Warning remains in effect until 8 PM EDT this evening. A Fire Weather Watch has also been issued for Saturday afternoon through Saturday evening. * AFFECTED AREA...Seminole...Orange...Brevard...Osceola...and Martin counties. * WIND...Southwest 10 to 15 mph with some higher gusts this afternoon increasing to around 20 mph and gusty Saturday. * HUMIDITY...Minimum RH values 25 to 30 percent this afternoon and 35 to 40 percent Saturday afternoon. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ FLZ041-044-141-144-130000- /O.CON.KMLB.FW.W.0016.000000T0000Z-170513T0000Z/ Inland Volusia County-Northern Lake County-Coastal Volusia County- Southern Lake County- 322 PM EDT Fri May 12 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... * AFFECTED AREA...LAKE and VOLUSIA COUNTIES. * WIND...Southwest 10 to 15 mph and gusty. * HUMIDITY...Minimum RH values 25 to 30 percent. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. 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. && $$
3 follow-up statements
658 WWUS82 KMLB 130707 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 307 AM EDT Sat May 13 2017 FLZ045>047-053-064-147-131515- /O.UPG.KMLB.FW.A.0010.170513T1600Z-170514T0000Z/ /O.EXA.KMLB.FW.W.0017.170513T1600Z-170514T0000Z/ Orange-Seminole-Southern Brevard County-Osceola-Martin- Northern Brevard County- 307 AM EDT Sat May 13 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from noon today to 8 PM EDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Seminole...Orange...Brevard...Osceola...and Martin counties. * WIND...Southwest 15 to 20 mph with frequent gusts 25 to 30 mph. * HUMIDITY...Minimum RH values between 30 and 35 percent. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. && $$ FLZ054-058-059-131515- /O.CON.KMLB.FW.W.0017.170513T1600Z-170514T0000Z/ Indian River-Okeechobee-St. Lucie- 307 AM EDT Sat May 13 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... * AFFECTED AREA...Indian River...Okeechobee...and St. Lucie counties. * WIND...Southwest 20 mph with frequent gusts near 30 mph. * HUMIDITY...Minimum RH values near 30 percent. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. 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. && $$ Kelly
907 WWUS82 KMLB 131248 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 848 AM EDT Sat May 13 2017 FLZ045>047-053-147-131400- /O.CAN.KMLB.FW.W.0017.170513T1600Z-170514T0000Z/ Orange-Seminole-Southern Brevard County-Osceola- Northern Brevard County- 848 AM EDT Sat May 13 2017 ...RED FLAG WARNING IS CANCELLED FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... The National Weather Service in Melbourne has cancelled the Red Flag Warning. Considerable clouds along with scattered showers and isolated storms moving across the area are expected to keep minimum RH values above critical thresholds today. Gusty winds will occur near thunderstorms and could lead to rapid fire spread where rainfall is sparse. $$ FLZ054-058-059-064-140000- /O.CON.KMLB.FW.W.0017.170513T1600Z-170514T0000Z/ Indian River-Okeechobee-St. Lucie-Martin- 848 AM EDT Sat May 13 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND EXTREMELY DRY VEGETATION WITH WIND... * AFFECTED AREA...Indian River...St. Lucie and Martin counties. * WIND...Southwest 15 to 20 mph with frequent gusts 25 to 30 mph. * HUMIDITY...Minimum RH values between 30 and 35 percent. * IMPACTS...Any fires that develop will be capable of spreading rapidly. A burn ban is in effect for all of east central Florida. 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. && $$
431 WWUS82 KMLB 131836 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 236 PM EDT Sat May 13 2017 FLZ054-058-059-064-131945- /O.CAN.KMLB.FW.W.0017.000000T0000Z-170514T0000Z/ Indian River-Okeechobee-St. Lucie-Martin- 236 PM EDT Sat May 13 2017 ...RED FLAG WARNING IS CANCELLED... The National Weather Service in Melbourne has cancelled the Red Flag Warning. Moist southwest winds have kept relative humidity above critical levels, so the Red Flag Warning has been cancelled. Gusty winds will occur through late afternoon though, so there will still be a high threat for spread of any wildfires. $$
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 3:48 AM EDT | Fire Weather Watch | MLB | Okeechobee, Orange, Osceola, Seminole | 23 hr |
| May 12, 3:48 AM EDT | Red Flag Warning | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 16 hr |
Nearby
Red Flag Warnings in Florida, 2017Every red flag warning in 2017
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.