Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 10, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Mar 11, 2011, 4:23 AM EST for 5 counties in Florida. It took effect at Mar 11, 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
- Mar 11, 2011, 4:23 AM EST (09:23 UTC)
- In effect from
- Mar 11, 2011, 10:00 AM EST
- Expired
- Mar 11, 2011, 6:39 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 09:22 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, 9.4 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1138 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -65 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
901 WWUS82 KMFL 110923 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 423 AM EST FRI MAR 11 2011 ...RED FLAG WARNING ALL OF SOUTH FLORIDA... FLZ063-066>075-168-172>174-111730- /O.NEW.KMFL.FW.W.0010.110311T1500Z-110312T0000Z/ GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER- INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE- METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 423 AM EST FRI MAR 11 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING FOR RELATIVE HUMIDITIES BELOW 35 PERCENT AND SUSTAINED 20 FOOT WIND OF 15 MPH OR GREATER... 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. SUSTAINED 20 FOOT WIN SPEEDS WILL BE GREATER THAN 15 MPH...WITH RELATIVE HUMIDITIES AT LEAST BRIEFLY BELOW 35 PERCENT ACROSS ALL OF SOUTH FLORIDA. 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. && $$
3 follow-up statements
274 WWUS82 KMFL 112102 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 402 PM EST FRI MAR 11 2011 ...RED FLAG WARNING ALL OF SOUTH FLORIDA... FLZ063-066-069-070-075-112215- /O.CAN.KMFL.FW.W.0010.000000T0000Z-110312T0000Z/ GLADES-HENDRY-COASTAL COLLIER-INLAND COLLIER-MAINLAND MONROE- 402 PM EST FRI MAR 11 2011 ...RED FLAG WARNING IS CANCELLED FOR THE WESTERN HALF OF SOUTH FLORIDA... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG WARNING. RELATIVE HUMIDITIES ACROSS COLLIER...GLADES...HENDRY AND MAINLAND MONROE COUNTIES HAVE REMAINED ABOVE CRITICAL LEVELS. THEREFORE...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ FLZ067-068-071>074-168-172>174-120000- /O.CON.KMFL.FW.W.0010.000000T0000Z-110312T0000Z/ INLAND PALM BEACH-METRO PALM BEACH-INLAND BROWARD-METRO BROWARD- INLAND MIAMI DADE-METRO MIAMI DADE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 402 PM EST FRI MAR 11 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING FOR THE EASTERN HALF OF SOUTH FLORIDA... RELATIVE HUMIDITIES BELOW CRITICAL LEVELS ARE POSSIBLE THIS AFTERNOON AND EARLY EVENING...BUT MAINLY ACROSS THE EASTERN SECTIONS OF SOUTH FLORIDA ALONG THE COASTAL ZONE...WITH ISOLATED AREAS POSSIBLE INLAND. IN ADDITION...SUSTAINED 20 FOOT WIND SPEEDS COULD BE GREATER THAN 15 MPH. THEREFORE...THE RED FLAG WARNING REMAINS IN EFFECT FOR THE EASTERN HALF OF SOUTH FLORIDA. 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. && $$
568 WWUS82 KMFL 112119 CCA RFWMFL URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE MIAMI FL 418 PM EST FRI MAR 11 2011 FLZ063-066-069-070-075-112230- /O.CAN.KMFL.FW.W.0010.000000T0000Z-110312T0000Z/ GLADES-HENDRY-COASTAL COLLIER-INLAND COLLIER-MAINLAND MONROE- 418 PM EST FRI MAR 11 2011 ...RED FLAG WARNING IS CANCELLED FOR THE WESTERN HALF OF SOUTH FLORIDA... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG WARNING. RELATIVE HUMIDITIES ACROSS COLLIER...GLADES...HENDRY AND MAINLAND MONROE COUNTIES HAVE REMAINED ABOVE CRITICAL LEVELS. THEREFORE...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ FLZ067-068-071>074-168-172>174-120000- /O.CON.KMFL.FW.W.0010.000000T0000Z-110312T0000Z/ INLAND PALM BEACH-METRO PALM BEACH-INLAND BROWARD-METRO BROWARD- INLAND MIAMI DADE-METRO MIAMI DADE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 418 PM EST FRI MAR 11 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING FOR THE EASTERN HALF OF SOUTH FLORIDA... RELATIVE HUMIDITIES BELOW CRITICAL LEVELS ARE POSSIBLE THIS AFTERNOON AND EARLY EVENING...BUT MAINLY ACROSS THE EASTERN SECTIONS OF SOUTH FLORIDA ALONG THE COASTAL ZONE...WITH ISOLATED AREAS POSSIBLE INLAND. IN ADDITION...SUSTAINED 20 FOOT WIND SPEEDS COULD BE GREATER THAN 15 MPH. THEREFORE...THE RED FLAG WARNING REMAINS IN EFFECT FOR THE EASTERN HALF OF SOUTH FLORIDA. 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. && $$
533 WWUS82 KMFL 112339 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 639 PM EST FRI MAR 11 2011 ...RED FLAG WARNING ALLOWED TO EXPIRE... FLZ067-068-071>074-168-172>174-120045- /O.CAN.KMFL.FW.W.0010.000000T0000Z-110312T0000Z/ INLAND PALM BEACH-METRO PALM BEACH-INLAND BROWARD-METRO BROWARD- INLAND MIAMI DADE-METRO MIAMI DADE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE- 639 PM EST FRI MAR 11 2011 ...RED FLAG WARNING ALLOWED TO EXPIRE... THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG WARNING. THE RELATIVE HUMIDITIES ACROSS THE WARNING AREA HAVE RISEN ABOVE CRITICAL LEVELS. THEREFORE...THE RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE. $$
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.