Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 32, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Apr 15, 2007, 2:16 PM EDT for 6 counties in Florida. It took effect at Apr 16, 2007, 11:00 AM EDT. It was in force for 9 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 15, 2007, 2:16 PM EDT (18:16 UTC)
- In effect from
- Apr 16, 2007, 11:00 AM EDT
- Expired
- Apr 16, 2007, 8:00 PM EDT
- In force
- 9 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 18:16 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, 6.3 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
- 882 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 552 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS82 KMLB 151816 RFWMLB RED FLAG WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 216 PM EDT SUN APR 15 2007 ...MUCH DRIER AIR MONDAY BEHIND THE COLD FRONT... FLZ041-044>047-053-054-058-059-064-141-144-147-161000- /O.UPG.KMLB.FW.A.0028.070416T1500Z-070417T0000Z/ /O.NEW.KMLB.FW.W.0032.070416T1500Z-070417T0000Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 216 PM EDT SUN APR 15 2007 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM EDT MONDAY... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS UPGRADED THE FIRE WEATHER WATCH TO A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM EDT MONDAY. STRONG AND GUSTY NORTHWEST WINDS AROUND 20 MPH WILL USHER IN A VERY DRY AIRMASS PRODUCING LONG DURATION OF CRITICAL RH VALUES MONDAY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS... LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE EITHER OCCURRING NOW... OR ARE FORECAST TO OCCUR IN THE NEXT 24 HOURS. $$ KELLY
2 follow-up statements
000 WWUS82 KMLB 160808 RFWMLB RED FLAG WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 408 AM EDT MON APR 16 2007 ...A MUCH DRIER AIRMASS WILL BE IN PLACE ACROSS EAST CENTRAL FLORIDA TODAY AND AGAIN TUESDAY... FLZ041-044>047-053-054-058-059-064-141-144-147-171000- /O.NEW.KMLB.FW.A.0029.070417T1500Z-070417T2300Z/ /O.CON.KMLB.FW.W.0032.070416T1500Z-070417T0000Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 408 AM EDT MON APR 16 2007 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING. A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING. STRONG AND GUSTY NORTHWEST WINDS AROUND 20 MPH WILL USHER IN A VERY DRY AIRMASS PRODUCING LONG DURATION OF CRITICAL RELATIVE HUMIDITY VALUES TODAY. WHILE WINDS WILL DECREASE OVER THE AREA ON TUESDAY...VERY DRY AIR WILL REMAIN IN PLACE WITH POSSIBLE LONG DURATION OF CRITICAL VALUES OF RELATIVE HUMIDITY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS... LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE EITHER OCCURRING NOW... OR ARE FORECAST TO OCCUR IN THE NEXT 24 HOURS. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS...LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE POSSIBLE BETWEEN 24 AND 72 HOURS. $$ SEDLOCK
000 WWUS82 KMLB 161818 RFWMLB RED FLAG WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 218 PM EDT MON APR 16 2007 ...A MUCH DRIER AIRMASS WILL BE IN PLACE ACROSS EAST CENTRAL FLORIDA TODAY AND AGAIN TUESDAY... FLZ041-044>047-053-054-058-059-064-141-144-147-171100- /O.UPG.KMLB.FW.A.0029.070417T1500Z-070417T2300Z/ /O.NEW.KMLB.FW.W.0033.070417T1600Z-070418T0000Z/ /O.CON.KMLB.FW.W.0032.000000T0000Z-070417T0000Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 218 PM EDT MON APR 16 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM 12 PM TO 8 PM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 12 PM TO 8 PM EDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. ALTHOUGH WINDS WILL HAVE DIMINISHED TUESDAY...A VERY DRY AIR MASS REMAINS IN PLACE RESULTING IN 4 OR MORE HOURS OF RELATIVE HUMIDITY VALUES BELOW 35 PERCENT FOR TUESDAY AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS... LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE EITHER OCCURRING NOW... OR ARE FORECAST TO OCCUR IN THE NEXT 24 HOURS. $$ 67
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 1:10 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 35 min |
Nearby
Red Flag Warnings in Florida, 2007Every red flag warning in 2007
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.