Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 46, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Apr 22, 2007, 5:16 AM EDT for 4 counties in Florida. It took effect at Apr 22, 2007, 10:50 AM 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
- Apr 22, 2007, 5:16 AM EDT (09:16 UTC)
- In effect from
- Apr 22, 2007, 10:50 AM EDT
- Expired
- Apr 22, 2007, 7:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Collier County, FL, Miami-Dade County, FL, Monroe County, FL
The radar
The Miami radar (KAMX), 48 km from the middle of the area, began a volume at 09:21 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, 9.3 hours before the alert went out and 53 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
- 9 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 125 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 220916 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 516 AM EDT SUN APR 22 2007 ...RED FLAG WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR GLADES...HENDRY AND EASTERN COLLIER COUNTIES... FLZ063-066-070-221730- /O.UPG.KMFL.FW.A.0026.070422T1700Z-070422T2300Z/ /O.NEW.KMFL.FW.W.0046.070422T1700Z-070422T2300Z/ GLADES-HENDRY-EASTERN COLLIER- 516 AM EDT SUN APR 22 2007 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING. A DRY AIRMASS WILL SPREAD ACROSS SOUTH FLORIDA THROUGHOUT THE DAY ON SUNDAY. THE DRY AIR...COUPLED WITH ABUNDANT HEATING OF THE SURFACE AIRMASS...WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS FROM SUNDAY AFTERNOON INTO EARLY SUNDAY EVENING. 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. $$ 70/DD
2 follow-up statements
000 WWUS82 KMFL 221450 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 1050 AM EDT SUN APR 22 2007 ...RED FLAG WARNING IN EFFECT FROM THIS AFTERNOON THROUGH EARLY THIS EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR GLADES...HENDRY AND EASTERN COLLIER COUNTIES... ...RED FLAG WARNING HAS BEEN EXPANDED FROM THIS AFTERNOON THROUGH EARLY THIS EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR WESTERN PALM BEACH...WESTERN BROWARD...WESTERN MIAMI DADE...WESTERN COLLIER AND MAINLAND MONROE COUNTIES... FLZ067-069-071-073-075-222300- /O.EXA.KMFL.FW.W.0046.070422T1700Z-070422T2300Z/ PALM BEACH WESTERN-WESTERN COLLIER-WESTERN BROWARD-WESTERN DADE- MAINLAND MONROE- 1050 AM EDT SUN APR 22 2007 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM EDT THIS EVENING. AIRMASS WILL BE DRIER THAN EARLIER EXPECTED ACROSS THE EVERGLADES, WESTERN PALM BEACH COUNTY, THE INLAND SECTIONS OF COLLIER COUNTY AND NORTHEAST SECTIONS OF MAINLAND MONROE COUNTY THROUGH TODAY. THE DRY AIR...COUPLED WITH ABUNDANT HEATING OF THE SURFACE AIRMASS...WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS FROM SUNDAY AFTERNOON INTO EARLY SUNDAY EVENING. THE 20 FOOT WIND SPEED MAY REACH 15 MPH OVER SOME OF THE AREAS JUST WEST OF THE EASTERN METRO ZONES. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ FLZ063-066-070-222300- /O.CON.KMFL.FW.W.0046.070422T1700Z-070422T2300Z/ GLADES-HENDRY-EASTERN COLLIER- 1050 AM EDT SUN APR 22 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. A DRY AIRMASS WILL SPREAD ACROSS SOUTH FLORIDA TODAY. THE DRY AIR...COUPLED WITH ABUNDANT HEATING OF THE SURFACE AIRMASS...WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS FROM THIS AFTERNOON INTO EARLY THIS EVENING. 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. $$
000 WWUS82 KMFL 221852 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 252 PM EDT SUN APR 22 2007 ...RED FLAG WARNING IN EFFECT THROUGH EARLY THIS EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR GLADES...HENDRY...EASTERN COLLIER...WESTERN PALM BEACH...WESTERN BROWARD...WESTERN MIAMI DADE...INLAND WESTERN COLLIER AND NORTHEAST MAINLAND MONROE COUNTIES... ...FIRE WEATHER WATCH IN EFFECT FOR MONDAY AFTERNOON THROUGH EARLY MONDAY EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR GLADES...HENDRY...EASTERN COLLIER...WESTERN PALM BEACH...WESTERN BROWARD...WESTERN MIAMI DADE...INLAND WESTERN COLLIER AND NORTHEAST MAINLAND MONROE COUNTIES... FLZ063-066-067-069>071-073-075-230930- /O.NEW.KMFL.FW.A.0027.070423T1700Z-070423T2300Z/ /O.CON.KMFL.FW.W.0046.000000T0000Z-070422T2300Z/ GLADES-HENDRY-PALM BEACH WESTERN-WESTERN COLLIER-EASTERN COLLIER- WESTERN BROWARD-WESTERN DADE-MAINLAND MONROE- 252 PM EDT SUN APR 22 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. AIRMASS WILL CONTINUE TO BE DRY ACROSS THE EVERGLADES...WESTERN PALM BEACH COUNTY...COLLIER COUNTY AND NORTHEAST SECTIONS OF MAINLAND MONROE COUNTY THROUGH EARLY THIS EVENING. THE DRY AIR...COUPLED WITH ABUNDANT HEATING OF THE SURFACE AIRMASS...WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THROUGH EARLY THIS EVENING. THE 20 FOOT WIND SPEED MAY REACH 15 MPH OVER SOME OF THE AREAS JUST WEST OF THE EASTERN METRO ZONES. THE MINIMUM RELATIVE HUMIDITY CONCERNS WILL BE THE SAME MONDAY AFTERNOON AND EARLY EVENING FOR THE SAME AREAS ABOVE. 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. 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 Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 5:08 AM EDT | Marine Weather Statement | MFL | 13 hr | |
| Apr 22, 2:52 PM EDT | Fire Weather Watch | MFL | Broward, Collier, Miami-Dade, Monroe | 14 hr |
| Apr 22, 7:26 PM EDT | Marine Weather Statement | MFL | 7 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.