Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 1, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Jan 12, 2011, 2:26 AM EST for 5 counties in Florida. It took effect at Jan 12, 2011, 10:00 AM EST. 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
- Jan 12, 2011, 2:26 AM EST (07:26 UTC)
- In effect from
- Jan 12, 2011, 10:00 AM EST
- Expired
- Jan 12, 2011, 7:00 PM EST
- In force
- 9 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 07:25 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, 7.4 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
- 522 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 928 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
696 WWUS82 KMFL 120726 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 226 AM EST WED JAN 12 2011 FLZ174-120830- /O.CAN.KMFL.FW.A.0001.110112T1500Z-110113T0000Z/ FAR SOUTH MIAMI DADE- 226 AM EST WED JAN 12 2011 ...FIRE WEATHER WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE FIRE WEATHER WATCH. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 30 AND 35 PERCENT FOR ONLY TWO OR THREE CONSECUTIVE HOURS ACROSS FAR SOUTH MIAMI DADE COUNTY THIS AFTERNOON. $$ FLZ063-066-067-069>071-073-075-130000- /O.UPG.KMFL.FW.A.0001.110112T1500Z-110113T0000Z/ /O.NEW.KMFL.FW.W.0001.110112T1500Z-110113T0000Z/ GLADES-HENDRY-INLAND PALM BEACH-COASTAL COLLIER-INLAND COLLIER- INLAND BROWARD-INLAND MIAMI DADE-MAINLAND MONROE- 226 AM EST WED JAN 12 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING. A MUCH COOLER AND VERY DRY AIR MASS WILL ALLOW RELATIVE HUMIDITIES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THIS AFTERNOON AND EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FLZ068-072-074-130000- /O.NEW.KMFL.FW.W.0001.110112T1500Z-110113T0000Z/ METRO PALM BEACH-METRO BROWARD-METRO MIAMI DADE- 226 AM EST WED JAN 12 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING. A MUCH COOLER AND VERY DRY AIR MASS WILL ALLOW RELATIVE HUMIDITIES TO FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THIS AFTERNOON AND EARLY EVENING. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ BETTWY
1 follow-up statement
254 WWUS82 KMFL 121929 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 229 PM EST WED JAN 12 2011 FLZ063-066-069-070-130330- /O.NEW.KMFL.FW.A.0002.110113T1700Z-110113T2300Z/ /O.CON.KMFL.FW.W.0001.000000T0000Z-110113T0000Z/ GLADES-HENDRY-COASTAL COLLIER-INLAND COLLIER- 229 PM EST WED JAN 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT THURSDAY AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. RELATIVE HUMIDITIES WILL REMAIN IN THE 25 TO 35 PERCENT RANGE ACROSS THE AREA THROUGH THE REST OF THIS AFTERNOON BEFORE INCREASING THIS EVENING. RELATIVE HUMIDITIES COULD AGAIN FALL BELOW 35 PERCENT AGAIN ON THURSDAY. FOR THIS REASON...A FIRE WEATHER WATCH HAS BEEN ISSUED FOR THE AREA FOR THURSDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ FLZ067-068-071>075-130000- /O.CON.KMFL.FW.W.0001.000000T0000Z-110113T0000Z/ INLAND PALM BEACH-METRO PALM BEACH-INLAND BROWARD-METRO BROWARD- INLAND MIAMI DADE-METRO MIAMI DADE-MAINLAND MONROE- 229 PM EST WED JAN 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING. RELATIVE HUMIDITIES WILL BE IN THE 30 TO 35 PERCENT RANGE ACROSS MUCH OF THE AREA THROUGH THE REST OF THIS AFTERNOON ALONG WITH 20 FOOT WINDS OF 10 TO 15 MPH. FOR THIS REASON...A RED FLAG WARNING REMAINS IN EFFECT. 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 WILL CREATE 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 |
|---|---|---|---|---|
| Jan 12, 2:48 AM EST | Freeze Warning | MFL | Collier, Glades, Hendry, Palm Beach | 30 hr |
| Jan 12, 3:06 AM EST | Wind Chill Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more | 30 hr |
| Jan 12, 2:29 PM EST | Fire Weather Watch | MFL | Collier | 12 hr |
Nearby
Red Flag Warnings in Florida, 2011Every red flag warning in 2011
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.