Alert archive / Florida / Red Flag Warnings in 2017
Red Flag Warning 11, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at May 7, 2017, 4:00 AM EDT for 4 counties in Florida. It took effect at May 7, 2017, 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
- May 7, 2017, 4:00 AM EDT (08:00 UTC)
- In effect from
- May 7, 2017, 12:00 PM EDT
- Expired
- May 7, 2017, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL
The radar
The Melbourne radar (KMLB), 82 km from the middle of the area, began a volume at 08:02 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, 8.0 hours before the alert went out and 137 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
- 2112 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
257 WWUS82 KMLB 070800 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 400 AM EDT Sun May 7 2017 ...RED FLAG WARNING FOR LAKE...SEMINOLE...ORANGE AND OSCEOLA COUNTIES FROM NOON TO 8 PM TODAY FOR LONG DURATION OF LOW RH WITH HIGH ERC VALUES... FLZ044>046-053-144-080000- /O.NEW.KMLB.FW.W.0011.170507T1600Z-170508T0000Z/ Northern Lake County-Orange-Seminole-Osceola-Southern Lake County- 400 AM EDT Sun May 7 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LONG DURATION OF LOW RH BELOW 35 PERCENT WITH HIGH ERC VALUES FOR LAKE...SEMINOLE...ORANGE AND OSCEOLA 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. * AFFECTED AREA... Northern Lake County... Orange... Seminole... Osceola... Southern Lake County. * WIND...Northwest winds 5 to 10 mph. * HUMIDITY...Min RHs between 25 and 30 percent. * 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. && $$ 15
1 follow-up statement
817 WWUS82 KMLB 071902 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 302 PM EDT Sun May 7 2017 ...RED FLAG WARNING FOR LAKE...SEMINOLE...ORANGE AND OSCEOLA COUNTIES FROM NOON TO 8 PM TODAY FOR LONG DURATION OF LOW RH WITH HIGH ERC VALUES... FLZ044>046-053-144-080000- /O.NEW.KMLB.FW.A.0005.170508T1600Z-170508T2300Z/ /O.CON.KMLB.FW.W.0011.000000T0000Z-170508T0000Z/ Northern Lake County-Orange-Seminole-Osceola-Southern Lake County- 302 PM EDT Sun May 7 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR LONG DURATION OF LOW RH BELOW 35 PERCENT WITH HIGH ERC VALUES... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LONG DURATION OF LOW RH BELOW 35 PERCENT WITH HIGH ERC VALUES... The National Weather Service in Melbourne has issued a Fire Weather Watch, which is in effect from Monday afternoon through Monday evening. * AFFECTED AREA... Northern Lake County... Orange... Seminole... Osceola... Southern Lake County. * WIND...Northwest winds 5 to 10 mph. * HUMIDITY...Min RHs between 25 and 30 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 3:02 PM EDT | Fire Weather Watch | MLB | Lake, Orange, Osceola, Seminole | 14 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.