Alert archive / Florida / Red Flag Warnings in 2007
Red Flag Warning 39, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Apr 7, 2007, 2:32 PM EDT for 5 counties in Florida. It took effect at Apr 8, 2007, 4:50 AM EDT. It was in force for 15 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 7, 2007, 2:32 PM EDT (18:32 UTC)
- In effect from
- Apr 8, 2007, 4:50 AM EDT
- Expired
- Apr 8, 2007, 8:00 PM EDT
- In force
- 15 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Collier County, FL, Miami-Dade County, FL, Monroe County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 55 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.5 hours before the alert went out and 50 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
- 1848 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -87 m²/s²
- 0-3 km storm-relative helicity
- -29 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 071832 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 232 PM EDT SAT APR 7 2007 FLZ063-066-067-069>071-080245- /O.UPG.KMFL.FW.A.0021.070408T1600Z-070408T2300Z/ /O.NEW.KMFL.FW.W.0039.070408T1500Z-070409T0000Z/ /O.EXT.KMFL.FW.W.0038.070407T1832Z-070407T2300Z/ GLADES-HENDRY-PALM BEACH WESTERN-WESTERN COLLIER-EASTERN COLLIER- WESTERN BROWARD- 232 PM EDT SAT APR 7 2007 ...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR GLADES,HENDRY,PALM BEACH WESTERN, WESTERN COLLIER,EASTERN COLLIER AND WESTERN BROWARD FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT... ... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY FOR GLADES,HENDRY,PALM BEACH WESTERN, WESTERN COLLIER,EASTERN COLLIER AND WESTERN BROWARD FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM EDT TODAY FOR GLADES,HENDRY,PALM BEACH WESTERN, WESTERN COLLIER,EASTERN COLLIER AND WESTERN BROWARD FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT. THE CURRENT RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. A VERY DRY AIRMASS REMAINS IN PLACE OVER SOUTH FLORIDA. WITH CLEAR SUNNY SKIES, AFTERNOON TEMPERATURES TO REACH THE MID 70S AS DEW POINTS FALL FROM THE UPPER 30S NORTHWEST INTERIOR TO THE LOWER TO MID 40S EXTREME SOUTH. SOME AREAS HAVE ALREADY FALLEN BELOW CRITICAL RELATIVE HUMIDITY VALUES AND THIS WILL EXPAND ACROSS SOUTH FLORIDA THIS AFTERNOON. ONLY THE IMMEDIATE GULF COAST MAY ESCAPE LONG DURATION OF CRITICAL RHS THIS AFTERNOON DUE TO AN ONSHORE WIND FLOW THERE. THE DRY AIRMASS WILL BE RE-ENFORCED BY A SECOND SHOT OF DRY AIR SUNDAY...LEADING TO RELATIVE HUMIDITIES BELOW 35 PERCENT FOR SEVERAL HOURS AGAIN SUNDAY AFTERNOON AND EARLY EVENING FOR THE SAME AREA. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. $$ FLZ068-072>075-080245- /O.EXT.KMFL.FW.W.0038.070407T1832Z-070407T2300Z/ /O.EXT.KMFL.FW.A.0021.070408T1500Z-070409T0000Z/ PALM BEACH EASTERN-BROWARD METROPOLITAN-WESTERN DADE- DADE METROPOLITAN-MAINLAND MONROE- 232 PM EDT SAT APR 7 2007 ...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR PALM BEACH EASTERN, BROWARD METROPOLITAN,WESTERN DADE, DADE METROPOLITAN AND MAINLAND MONROE COUNTIES FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT... ...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR PALM BEACH EASTERN, BROWARD METROPOLITAN,WESTERN DADE,DADE METROPOLITAN AND MAINLAND MONROE COUNTIES FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 7 PM EDT THIS EVENING PALM BEACH EASTERN, BROWARD METROPOLITAN,WESTERN DADE, DADE METROPOLITAN AND MAINLAND MONROE COUNTIES FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT. ALSO , A FIRE WEATHER WATCH IS NOW IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING. A VERY DRY AIRMASS IS IN PLACE OVER SOUTH FLORIDA. WITH CLEAR SUNNY SKIES, AFTERNOON TEMPERATURES WILL REACH THE MID 70S AS DEW POINTS FALL FROM THE UPPER 30S IN THE NORTHWEST INTERIOR TO THE LOWER TO MID 40S EXTREME SOUTH. SOME AREAS HAVE ALREADY FALLEN BELOW CRITICAL RELATIVE HUMIDITY VALUES AND THIS WILL EXPAND ACROSS SOUTH FLORIDA THIS AFTERNOON. ONLY THE IMMEDIATE GULF COAST MAY ESCAPE LONG DURATION OF CRITICAL RELATIVE HUMIDITIES THIS AFTERNOON DUE TO AN ONSHORE WIND FLOW THERE. THE DRY AIRMASS WILL BE RE-UNFORCED BY A SECOND SHOT OF DRY AIR SUNDAY...LEADING TO RELATIVE HUMIDITIES BELOW 35 PERCENT FOR SEVERAL HOURS AGAIN SUNDAY AFTERNOON AND EARLY EVENING. BUT DUE TO SHIFTING WINDS OFF OF THE ATLANTIC AND THE POTENTIAL FOR A WEST COAST SEA BREEZE, A FIRE WEATHER WATCH REMAINS IN EFFECT FOR THE EAST COAST AND SOUTH PORTIONS OF THE FLORIDA PENINSULA AS THE LOWEST RELATIVE HUMIDITIES MAY BE JUST ACROSS THE INTERIOR AND GULF COAST AS WINDS TURN NORTHEASTERLY DUE TO POSSIBLE INFLUX OF LOW LEVEL MOISTURE. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. 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. $$
4 follow-up statements
000 WWUS82 KMFL 080154 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 954 PM EDT SAT APR 7 2007 FLZ063-066-067-069>071-081000- /O.CON.KMFL.FW.W.0039.070408T1500Z-070409T0000Z/ GLADES-HENDRY-PALM BEACH WESTERN-WESTERN COLLIER-EASTERN COLLIER- WESTERN BROWARD- 954 PM EDT SAT APR 7 2007 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY. A DRY AND STABLE AIR MASS CONTINUES ACROSS SOUTH FLORIDA THIS EVENING. THE DRY AIRMASS WILL BE RE-ENFORCED BY A SECOND SHOT OF DRY AIR SUNDAY...LEADING TO RELATIVE HUMIDITIES BELOW 35 PERCENT FOR SEVERAL HOURS AGAIN SUNDAY AFTERNOON AND EARLY EVENING FOR GLADES AND HENDRY COUNTIES...THE WESTERN PORTION OF PALM BEACH AND BROWARD COUNTIES AND ACROSS COLLIER COUNTY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. $$ FLZ068-072>075-081000- /O.CON.KMFL.FW.A.0021.070408T1500Z-070409T0000Z/ PALM BEACH EASTERN-BROWARD METROPOLITAN-WESTERN DADE- DADE METROPOLITAN-MAINLAND MONROE- 954 PM EDT SAT APR 7 2007 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING. A DRY AND STABLE AIR MASS CONTINUES ACROSS SOUTH FLORIDA. THE DRY AIRMASS WILL BE RE-ENFORCED BY A SECOND SHOT OF DRY AIR SUNDAY...LEADING TO RELATIVE HUMIDITIES BELOW 35 PERCENT FOR SEVERAL HOURS AGAIN SUNDAY AFTERNOON AND EARLY EVENING. BUT DUE TO SHIFTING WINDS OFF OF THE ATLANTIC AND THE POTENTIAL FOR A WEST COAST SEA BREEZE... A FIRE WEATHER WATCH REMAINS IN EFFECT FOR THE EAST COAST AND SOUTH PORTIONS OF THE FLORIDA PENINSULA AS THE LOWEST RELATIVE HUMIDITIES MAY BE JUST ACROSS THE INTERIOR AND GULF COAST AS WINDS TURN NORTHEASTERLY DUE TO POSSIBLE INFLUX OF LOW LEVEL MOISTURE. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. $$ 60
000 WWUS82 KMFL 080850 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 450 AM EDT SUN APR 8 2007 FLZ068-072-074-081000- /O.CAN.KMFL.FW.A.0021.070408T1500Z-070409T0000Z/ PALM BEACH EASTERN-BROWARD METROPOLITAN-DADE METROPOLITAN- 450 AM EDT SUN APR 8 2007 ...FIRE WEATHER WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE FIRE WEATHER WATCH FOR EASTERN PALM BEACH...EASTERN BROWARD...AND EASTERN MIAMI-DADE COUNTIES. ALTHOUGH RHS ARE EXPECTED TO FALL BELOW 35 PERCENT TODAY ACROSS THESE AREAS...DURATION IS EXPECTED TO BE ONLY FOR A FEW HOURS. A BREEZE OFF THE OCEAN IS FORECAST TO DEVELOP THIS AFTERNOON...ALLOWING RHS TO QUICKLY REBOUND. THUS...THE FIRE WEATHER WATCH HAS BEEN CANCELLED. HOWEVER...OBSERVATIONS WILL BE CLOSELY MONITORED TODAY...SINCE A DELAY IN THE SEA BREEZE WOULD RESULT IN LONG DURATION OF CRITICAL RHS. THIS IS NOT EXPECTED AT THIS TIME. $$ FLZ073-075-090000- /O.UPG.KMFL.FW.A.0021.070408T1500Z-070409T0000Z/ /O.EXA.KMFL.FW.W.0039.070408T1500Z-070409T0000Z/ WESTERN DADE-MAINLAND MONROE- 450 AM EDT SUN APR 8 2007 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING FOR WESTERN MIAMI-DADE AND MAINLAND MONROE COUNTIES FOR RHS BELOW 35 PERCENT FOR MORE THAN 4 HOURS... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. A VERY DRY AIRMASS WILL CONTINUE IN PLACE ACROSS THE AREA THIS AFTERNOON...AND WITH TEMPERATURES WARMING INTO THE UPPER 70S TO NEAR 80 DEGREES...RHS ARE EXPECTED TO FALL BELOW 35 PERCENT FOR MORE THAN 4 HOURS THIS AFTERNOON AND EARLY THIS EVENING. IN FACT...RHS IN THE 20S ARE EXPECTED THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ FLZ063-066-067-069>071-090000- /O.CON.KMFL.FW.W.0039.070408T1500Z-070409T0000Z/ GLADES-HENDRY-PALM BEACH WESTERN-WESTERN COLLIER-EASTERN COLLIER- WESTERN BROWARD- 450 AM EDT SUN APR 8 2007 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING FOR GLADES...HENDRY...COLLIER...WESTERN PALM BEACH...AND WESTERN BROWARD COUNTIES FOR RHS BELOW 35 PERCENT FOR MORE THAN 4 HOURS... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING. A VERY DRY AIRMASS WILL CONTINUE IN PLACE ACROSS THE AREA THIS AFTERNOON...AND WITH TEMPERATURES WARMING INTO THE UPPER 70S TO NEAR 80 DEGREES...RHS ARE EXPECTED TO FALL BELOW 35 PERCENT FOR MORE THAN 4 HOURS THIS AFTERNOON AND EARLY THIS EVENING. IN FACT...RHS IN THE 20S ARE EXPECTED THIS AFTERNOON...WITH EVEN SOME UPPER TEENS POSSIBLE. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ DG
000 WWUS82 KMFL 081712 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 112 PM EDT SUN APR 8 2007 FLZ068-072-074-090000- /O.EXA.KMFL.FW.W.0039.000000T0000Z-070409T0000Z/ PALM BEACH EASTERN-BROWARD METROPOLITAN-DADE METROPOLITAN- 112 PM EDT SUN APR 8 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR METROPOLITAN PALM BEACH...METROPOLITAN BROWARD AND METROPOLITAN MIAMI-DADE COUNTIES FOR 4 OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT. A VERY DRY AIRMASS OVER SOUTH FLORIDA WILL BEGIN TO ERODE FROM THE EAST AS THE EAST COAST SEA BREEZE DEVELOPS. BUT THE SEA BREEZE WILL BE TOO LATE TO PREVENT THE RELATIVE HUMIDITIES FROM EXCEEDING 4 CONSECUTIVE HOURS. RELATIVE HUMIDITIES WILL IMPROVE FROM EAST TO WEST THIS AFTERNOON ACROSS THE EAST COAST FIRE WEATHER ZONES WITH THE INTERIOR AREAS WEST OF THE SUBURBS RECEIVING SEVERAL HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ FLZ063-066-067-069>071-073-075-090000- /O.CON.KMFL.FW.W.0039.000000T0000Z-070409T0000Z/ GLADES-HENDRY-PALM BEACH WESTERN-WESTERN COLLIER-EASTERN COLLIER- WESTERN BROWARD-WESTERN DADE-MAINLAND MONROE- 112 PM EDT SUN APR 8 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. A VERY DRY AIRMASS WILL CONTINUE IN PLACE ACROSS THE AREA THIS AFTERNOON...AND WITH TEMPERATURES WARMING INTO THE UPPER 70S TO NEAR 80 DEGREES...RHS ARE EXPECTED TO FALL BELOW 35 PERCENT FOR MORE THAN 4 HOURS THIS AFTERNOON AND EARLY THIS EVENING. IN FACT...RHS IN THE 20S ARE EXPECTED THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$
000 WWUS82 KMFL 090007 RFWMFL RED FLAG WARNING NATIONAL WEATHER SERVICE MIAMI FL 807 PM EDT SUN APR 8 2007 ...RED FLAG WARNING ALLOWED TO EXPIRE AT 8 PM EDT THIS EVENING... FLZ063-066>075-090115- /O.EXP.KMFL.FW.W.0039.000000T0000Z-070409T0000Z/ GLADES-HENDRY-PALM BEACH WESTERN-PALM BEACH EASTERN- WESTERN COLLIER-EASTERN COLLIER-WESTERN BROWARD- BROWARD METROPOLITAN-WESTERN DADE-DADE METROPOLITAN- MAINLAND MONROE- 807 PM EDT SUN APR 8 2007 ...RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING. ALMOST ALL AREAS OF SOUTH FLORIDA NOW HAVE RELATIVE HUMIDITIES THAT ARE ABOVE 35 PERCENT. WHILE THERE ARE STILL ISOLATED AREAS OF THE INTERIOR PORTIONS OF SOUTH FLORIDA THAT ARE BELOW 35 PERCENT...THESE ARE EXPECTED TO BE ABOVE 35 PERCENT IN THE NEXT HOUR OR TWO. THEREFORE...THE RED FLAG WARNING THAT WAS IN EFFECT FOR ALL OF SOUTH FLORIDA HAS BEEN ALLOWED TO EXPIRE. $$
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.