Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 5, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Feb 11, 2011, 2:42 PM EST for Collier County, Florida. It took effect at Feb 12, 2011, 12:00 PM 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
- Feb 11, 2011, 2:42 PM EST (19:42 UTC)
- In effect from
- Feb 12, 2011, 12:00 PM EST
- Expired
- Feb 12, 2011, 6:00 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 19:43 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, 7.7 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
- 146 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 521 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
608 WWUS82 KMFL 111942 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 242 PM EST FRI FEB 11 2011 FLZ063-066-121100- /O.UPG.KMFL.FW.A.0006.110212T1700Z-110212T2200Z/ /O.NEW.KMFL.FW.W.0005.110212T1800Z-110212T2300Z/ /O.NEW.KMFL.FW.A.0007.110213T1700Z-110213T2300Z/ GLADES-HENDRY- 242 PM EST FRI FEB 11 2011 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 6 PM EST SATURDAY... ...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM TO 6 PM EST SATURDAY. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE WEATHER WATCH IS IN EFFECT SUNDAY AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION THIS WEEKEND AS CONTINENTAL HIGH PRESSURE BUILDS FROM THE NORTHWEST. THIS WILL CAUSE RELATIVE HUMIDITY VALUES TO FALL TO LESS THAN 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ON SATURDAY AFTERNOON ACROSS GLADES AND HENDRY COUNTIES. LOWEST VALUES ARE FORECAST TO BE AROUND 28 PERCENT OVER WESTERN PORTIONS OF BOTH COUNTIES. SIMILAR CONDITIONS ARE ANTICIPATED SUNDAY AFTERNOON, WITH RELATIVE HUMIDITY VALUES AS LOW AS 25 PERCENT POSSIBLE IN GLADES COUNTY. 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. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ MOLLEDA
2 follow-up statements
205 WWUS82 KMFL 120700 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 200 AM EST SAT FEB 12 2011 FLZ069-070-122300- /O.EXB.KMFL.FW.W.0005.110212T1700Z-110212T2300Z/ /O.EXA.KMFL.FW.A.0007.110213T1700Z-110213T2300Z/ COASTAL COLLIER-INLAND COLLIER- 200 AM EST SAT FEB 12 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE WEATHER WATCH IS IN EFFECT SUNDAY AFTERNOON. CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION TODAY AS CONTINENTAL HIGH PRESSURE BUILDS FROM THE NORTHWEST. THIS WILL CAUSE RELATIVE HUMIDITY VALUES TO FALL TO LESS THAN 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ACROSS COLLIER COUNTY THIS AFTERNOON. SIMILAR CONDITIONS ARE ANTICIPATED SUNDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ FLZ063-066-122300- /O.EXT.KMFL.FW.W.0005.110212T1700Z-110212T2300Z/ /O.CON.KMFL.FW.A.0007.110213T1700Z-110213T2300Z/ GLADES-HENDRY- 200 AM EST SAT FEB 12 2011 ...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... ...FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON... THE RED FLAG WARNING IS NOW IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING. A FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON. CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION TODAY AS CONTINENTAL HIGH PRESSURE BUILDS FROM THE NORTHWEST. THIS WILL CAUSE RELATIVE HUMIDITY VALUES TO FALL TO LESS THAN 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THIS AFTERNOON ACROSS GLADES AND HENDRY COUNTIES. LOWEST VALUES ARE FORECAST TO BE BETWEEN 25 AND 28 PERCENT OVER WESTERN PORTIONS OF BOTH COUNTIES. SIMILAR CONDITIONS ARE ANTICIPATED SUNDAY AFTERNOON... WITH RELATIVE HUMIDITY VALUES AS LOW AS 20 TO 22 PERCENT POSSIBLE IN GLADES COUNTY. 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. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
239 WWUS82 KMFL 121914 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 214 PM EST SAT FEB 12 2011 FLZ063-066-130900- /O.UPG.KMFL.FW.A.0007.110213T1700Z-110213T2300Z/ /O.NEW.KMFL.FW.W.0006.110213T1700Z-110213T2300Z/ /O.NEW.KMFL.FW.A.0008.110214T1800Z-110214T2300Z/ /O.CON.KMFL.FW.W.0005.000000T0000Z-110212T2300Z/ GLADES-HENDRY- 214 PM EST SAT FEB 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... ...RED FLAG WARNING NOW IN EFFECT FROM NOON TO 6 PM EST SUNDAY... ...FIRE WEATHER WATCH IN EFFECT MONDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST SUNDAY. THIS REPLACES THE PREVIOUS FIRE WEATHER WATCH. A NEW FIRE WEATHER WATCH HAS ISSUED FOR MONDAY AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. CONSIDERABLY DRIER CONDITIONS HAS MOVED INTO SOUTHWEST FLORIDA THIS AFTERNOON AS CONTINENTAL HIGH PRESSURE BUILDS FROM THE NORTHWEST. AS A RESULT, RELATIVE HUMIDITY VALUES WILL FALL TO LESS THAN 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THIS AFTERNOON ACROSS GLADES AND HENDRY COUNTIES. LOWEST VALUES ARE FORECAST TO BE BETWEEN 28 AND 30 PERCENT OVER NORTHERN AND WESTERN PORTIONS OF BOTH COUNTIES. EVEN DRIER AIR WILL MOVE INTO THE REGION SUNDAY AFTERNOON, WITH LOWEST RELATIVE HUMIDITY VALUES OF 24 TO 27 PERCENT ACROSS NORTHERN AND WESTERN PORTIONS OF BOTH COUNTIES AND 28 TO 32 PERCENT ELSEWHERE. DRY AIR WILL LINGER ON MONDAY, WITH LOWEST AFTERNOON HUMIDITY VALUES OF 28 TO 30 PERCENT POSSIBLE OVER MUCH OF GLADES AND HENDRY COUNTIES. 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. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ FLZ069-070-130900- /O.UPG.KMFL.FW.A.0007.110213T1700Z-110213T2300Z/ /O.NEW.KMFL.FW.W.0006.110213T1700Z-110213T2300Z/ /O.CON.KMFL.FW.W.0005.000000T0000Z-110212T2300Z/ COASTAL COLLIER-INLAND COLLIER- 214 PM EST SAT FEB 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... ...RED FLAG WARNING NOW IN EFFECT FROM NOON TO 6 PM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST SUNDAY. THIS REPLACES THE PREVIOUS FIRE WEATHER WATCH. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. CONSIDERABLY DRIER CONDITIONS HAS MOVED INTO SOUTHWEST FLORIDA THIS AFTERNOON AS CONTINENTAL HIGH PRESSURE BUILDS FROM THE NORTHWEST. AS A RESULT, RELATIVE HUMIDITY VALUES WILL FALL TO LESS THAN 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS THIS AFTERNOON ACROSS MUCH OF COLLIER COUNTY. LOWEST RELATIVE HUMIDITY VALUES OF 30 TO 34 PERCENT ARE EXPECTED OVER NORTHERN AND WESTERN SECTIONS OF COLLIER COUNTY, WITH SLIGHTLY HIGHER VALUES OVER EASTERN SECTIONS. EVEN DRIER AIR WILL MOVE INTO THE REGION SUNDAY AFTERNOON, WITH LOWEST RELATIVE HUMIDITY VALUES OF 27 TO 30 PERCENT ACROSS NORTHERN AND WESTERN SECTIONS OF COLLIER COUNTY AND 30 TO 34 PERCENT OVER MOST OF CENTRAL AND EASTERN COLLIER COUNTY. 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. && $$ MOLLEDA
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 2:17 AM EST | Fire Weather Watch | MFL | 12 hr | |
| Feb 11, 1:46 PM EST | Special Marine Warning | MFL | 59 min | |
| Feb 11, 2:42 PM EST | Fire Weather Watch | MFL | Collier | 24 hr |
| Feb 11, 3:14 PM EST | Small Craft Advisory for Winds | MFL | 12 hr | |
| Feb 11, 3:14 PM EST | Small Craft Advisory for Hazardous Seas | MFL | 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.