Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 13, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Mar 20, 2011, 6:27 AM EDT for Collier County, Monroe County, Florida. It took effect at Mar 20, 2011, 1:00 PM EDT. It was in force for 3 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
- Mar 20, 2011, 6:27 AM EDT (10:27 UTC)
- In effect from
- Mar 20, 2011, 1:00 PM EDT
- Expired
- Mar 20, 2011, 4:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Miami, FL
Counties Collier County, FL, Monroe County, FL
The radar
The Miami radar (KAMX), 78 km from the middle of the area, began a volume at 10:26 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, 10.5 hours before the alert went out and 86 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
- 1468 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- -38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
894 WWUS82 KMFL 201027 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 627 AM EDT SUN MAR 20 2011 ...RED FLAG WARNING FOR COLLIER AND MAINLAND MONROE COUNTIES... FLZ069-070-075-201830- /O.NEW.KMFL.FW.W.0013.110320T1700Z-110321T2200Z/ COASTAL COLLIER-INLAND COLLIER-MAINLAND MONROE- 627 AM EDT SUN MAR 20 2011 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT MONDAY FOR COLLIER AND MAINLAND MONROE COUNTIES... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT MONDAY FOR COLLIER AND MAINLAND MONROE COUNTIES AS RELATIVE HUMIDITIES WILL FALL BELOW 35 PERCENT AND 20 FOOT WINDS WILL BE SUSTAINED AT 15 MPH OR HIGHER. 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. && $$
2 follow-up statements
122 WWUS82 KMFL 201515 CCA RFWMFL URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE MIAMI FL 1113 AM EDT SUN MAR 20 2011 ...RED FLAG WARNING FOR COLLIER AND MAINLAND MONROE COUNTIES... FLZ069-070-075-202330- /O.COR.KMFL.FW.W.0013.110320T1700Z-110321T2200Z/ COASTAL COLLIER-INLAND COLLIER-MAINLAND MONROE- 1113 AM EDT SUN MAR 20 2011 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT THIS EVENING FOR COLLIER AND MAINLAND MONROE COUNTIES... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT THIS EVENING FOR COLLIER AND MAINLAND MONROE COUNTIES AS RELATIVE HUMIDITIES WILL FALL BELOW 35 PERCENT AND 20 FOOT WINDS WILL BE SUSTAINED AT 15 MPH OR HIGHER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
371 WWUS82 KMFL 202015 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 415 PM EDT SUN MAR 20 2011 FLZ069-070-075-202115- /O.CAN.KMFL.FW.W.0013.000000T0000Z-110321T2200Z/ COASTAL COLLIER-INLAND COLLIER-MAINLAND MONROE- 415 PM EDT SUN MAR 20 2011 ...RED FLAG WARNING IS CANCELLED FOR COLLIER AND MAINLAND MONROE COUNTIES... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG WARNING. RELATIVE HUMIDITIES HAVE ONLY FALLEN INTO THE 40 TO 50 PERCENT RANGE ACROSS THE AREA THIS AFTERNOON. RELATIVE HUMIDITIES HAVE LEVELLED OFF AND WILL BEGIN TO STEADILY RISE OVER INTO EARLY THIS EVENING. THEREFORE...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ GREGORIA
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 8:00 AM EDT | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Palm Beach | 3 hr |
| Mar 20, 4:41 PM EDT | Small Craft Advisory | MFL | 29 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.