Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 66, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Dec 17, 2007, 2:15 AM EST for Collier County, Florida. It took effect at Dec 17, 2007, 11:00 AM EST. It was in force for 6 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
- Dec 17, 2007, 2:15 AM EST (07:15 UTC)
- In effect from
- Dec 17, 2007, 11:00 AM EST
- Expired
- Dec 17, 2007, 5:00 PM EST
- In force
- 6 hr
- Issued by
- NWS Miami, FL
County Collier County, FL
The radar
The Miami radar (KAMX), 111 km from the middle of the area, began a volume at 07:20 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
Miami, FL (KMFL), launched 00:00Z, 7.3 hours before the alert went out and 113 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
- 896 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS82 KMFL 170715 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 215 AM EST MON DEC 17 2007 ...RED FLAG WARNING TODAY FOR 4 OR MORE HOURS WITH RELATIVE HUMIDITIES BELOW 35 PERCENT IN GLADES, HENDRY, AND COLLIER COUNTIES... FLZ063-066-070-172200- /O.UPG.KMFL.FW.A.0039.071217T1600Z-071217T2200Z/ /O.NEW.KMFL.FW.W.0066.071217T1600Z-071217T2200Z/ GLADES-HENDRY-INLAND COLLIER- 215 AM EST MON DEC 17 2007 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON. THIS REPLACES THE FIRE WEATHER WATCH PREVIOUSLY ISSUED FOR THIS AREA. A RATHER DRY AIRMASS HAS SPREAD SOUTH BEHIND A COLD FRONT THAT MOVED THROUGH MAINLAND SOUTH FLORIDA ON SUNDAY. IN ADDITION, VERY DRY AIR JUST ABOVE THE SURFACE WILL MIX DOWN TO THE SURFACE AS THE DAY PROGRESSES. THUS, RELATIVE HUMIDITIES WILL BE DROP BELOW 35 PERCENT BY LATE MONDAY MORNING AND WILL LIKELY REMAIN BELOW 35 PERCENT UNTIL LATE AFTERNOON ACROSS GLADES...HENDRY...AND INLAND COLLIER COUNTIES...ESPECIALLY AWAY FROM LAKE OKEECHOBEE...WHERE WINDS OFF THE LAKE WILL MODERATE LOW-LEVEL MOISTURE LEVELS. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ FLZ069-172200- /O.NEW.KMFL.FW.W.0066.071217T1600Z-071217T2200Z/ COASTAL COLLIER- 215 AM EST MON DEC 17 2007 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON. A RATHER DRY AIRMASS HAS SPREAD SOUTH BEHIND A COLD FRONT THAT MOVED THROUGH MAINLAND SOUTH FLORIDA ON SUNDAY. IN ADDITION, VERY DRY AIR JUST ABOVE THE SURFACE WILL MIX DOWN TO THE SURFACE AS THE DAY PROGRESSES. THUS, RELATIVE HUMIDITIES WILL BE DROP BELOW 35 PERCENT BY LATE MONDAY MORNING AND WILL LIKELY REMAIN BELOW 35 PERCENT UNTIL LATE AFTERNOON ACROSS COASTAL COLLIER COUNTY...AS NORTHEASTERLY WINDS CARRY DRY AIR FROM THE INTERIOR TO COASTAL REGIONS. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ GS/JR
1 follow-up statement
000 WWUS82 KMFL 171909 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 209 PM EST MON DEC 17 2007 ...RED FLAG WARNING TODAY FOR 4 OR MORE HOURS WITH RELATIVE HUMIDITIES BELOW 35 PERCENT IN GLADES... HENDRY... AND COLLIER COUNTIES... FLZ063-066-070-172015- /O.CAN.KMFL.FW.W.0066.000000T0000Z-071217T2200Z/ GLADES-HENDRY-INLAND COLLIER- 209 PM EST MON DEC 17 2007 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG WARNING. TEMPERATURES ACROSS THE AREA HAVE STRUGGLED TO REBOUND THIS AFTERNOON...ONLY REACHING INTO THE MID TO UPPER 50S ACROSS MOST OF THE AREA. THIS HAS KEPT RHS FROM FALLING TO CRITICAL LEVELS THIS AFTERNOON. IT IS POSSIBLE THAT RHS COULD FALL TO NEAR 35 PERCENT OVER THE NEXT HOUR OR SO...BUT LONG DURATION IS NO LONGER ACHIEVABLE. ALSO...WINDS ACROSS THE AREA REMAIN AT 10 MPH OR LESS. THUS...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ FLZ069-172200- /O.CON.KMFL.FW.W.0066.000000T0000Z-071217T2200Z/ COASTAL COLLIER- 209 PM EST MON DEC 17 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON FOR COASTAL COLLIER COUNTY. TEMPERATURES ACROSS COASTAL COLLIER COUNTY HAVE REACHED INTO THE LOWER 60S AND DEWPOINTS HAVE TUMBLED INTO THE LOWER 30S. THIS HAS ALLOWED RHS TO FALL JUST BELOW 35 PERCENT FOR A FEW HOURS ACROSS THE AREA. THESE LOW RHS WILL CONTINUE THROUGH ABOUT 5 PM BEFORE REBOUNDING. THUS...THE RED FLAG WARNING CONTINUES IN EFFECT FOR THE GREATER NAPLES AREA. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THIS COULD RESULT IN EXPLOSIVE FIRE GROWTH POTENTIAL. $$ GREGORIA
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 8:01 PM EST | Fire Weather Watch | MFL | 6 hr |
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.