Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 4, NWS Miami, FL

March 6, 20124 counties in Florida

NWS Miami, FL issued this red flag warning at Mar 6, 2012, 3:06 AM EST for 4 counties in Florida. It took effect at Mar 6, 2012, 11:00 AM EST. It was in force for 7 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 6, 2012, 3:06 AM EST (08:06 UTC)
In effect from
Mar 6, 2012, 11:00 AM EST
Expired
Mar 6, 2012, 5:37 PM EST
In force
7 hr
Issued by
NWS Miami, FL

Counties Broward County, FL, Collier County, FL, Miami-Dade County, FL, Monroe County, FL

The radar

The Miami radar (KAMX), 48 km from the middle of the area, began a volume at 08:10 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, 8.1 hours before the alert went out and 53 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.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 00:00Z on 2012-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 00:00Z on 2012-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1427 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

293 
WWUS82 KMFL 060806
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
306 AM EST TUE MAR 6 2012

...RED FLAG WARNING FOR INTERIOR AND WEST FIRE WEATHER ZONES FROM 
  11 AM TO 6 PM FOR RELATIVE HUMIDITY EQUAL TO OR BELOW 35 PERCENT
  WITH 20 FOOT WINDS EQUAL TO OR GREATER THAN 15 MPH...

FLZ063-066-067-069>071-073-075-061615-
/O.NEW.KMFL.FW.W.0004.120306T1600Z-120306T2300Z/
GLADES-HENDRY-INLAND PALM BEACH-COASTAL COLLIER-INLAND COLLIER-
INLAND BROWARD-INLAND MIAMI DADE-MAINLAND MONROE-
306 AM EST TUE MAR 6 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS EVENING FOR HUMIDITY EQUAL TO OR BELOW 35 PERCENT WITH 20
FOOT WINDS EQUAL TO OR GREATER THAN 15 MPH FOR FIRE WEATHER ZONES
063...066...067...069...070...071...073 AND 075...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONES 063...066...067...069...070
  ...071...073 AND 075.

* WIND...20 FOOT WINDS OF 15 MPH OR GREATER


* HUMIDITY...35 PERCENT OR LESS 

* HIGHEST THREAT...IS FOR WESTERN PALM BEACH, WESTERN BROWARD,
  WESTERN MIAMI DADE, COLLIER, HENDRY AND GLADES COUNTIES.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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
622 
WWUS82 KMFL 061913
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
213 PM EST TUE MAR 6 2012

FLZ063-066-067-071-073-075-062015-
/O.CAN.KMFL.FW.W.0004.000000T0000Z-120306T2300Z/
GLADES-HENDRY-INLAND PALM BEACH-INLAND BROWARD-INLAND MIAMI DADE-
MAINLAND MONROE-
213 PM EST TUE MAR 6 2012

...RED FLAG WARNING IS CANCELLED FOR GLADES, HENDRY, INLAND PALM
BEACH, INLAND BROWARD, INLAND MIAMI-DADE AND MAINLAND MONROE
COUNTIES...

RELATIVE HUMIDITIES HAVE ONLY DROPPED INTO THE 40S ACROSS THIS
AREA...WITH NO FURTHER DECREASE EXPECTED. THEREFORE, THE RED FLAG
WARNING HAS BEEN CANCELLED.

$$

FLZ069-070-062300-
/O.CON.KMFL.FW.W.0004.000000T0000Z-120306T2300Z/
COASTAL COLLIER-INLAND COLLIER-
213 PM EST TUE MAR 6 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING
FOR WESTERN SECTIONS OF COLLIER COUNTY...

* AFFECTED AREA...COLLIER COUNTY WEST OF STATE ROAD 29.

* WIND...20 FOOT WINDS OF 15 MPH OR GREATER

* HUMIDITY...30 TO 35 PERCENT

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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
573 
WWUS82 KMFL 062237
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
537 PM EST TUE MAR 6 2012

...CANCELLATION OF RED FLAG WARNING...

FLZ069-070-062345-
/O.CAN.KMFL.FW.W.0004.000000T0000Z-120306T2300Z/
COASTAL COLLIER-INLAND COLLIER-
537 PM EST TUE MAR 6 2012

...RED FLAG WARNING IS CANCELLED FOR RISING RELATIVE HUMIDITIES FOR
FIRE WEATHER ZONES 069 AND 070...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE RED FLAG
WARNING. 

REGIONAL OBSERVATIONS INDICATE THAT THE RELATIVE HUMIDITIES NEAR
CRITICAL LEVELS ACROSS WESTERN COLLIER COUNTY EARLIER THIS
AFTERNOON ARE STEADILY RISING WITH MOST AREAS LIKELY ABOVE
CRITICAL LEVELS. THEREFORE...THE RED FLAG WARNING HAS BEEN ALLOWED
TO EXPIRE.

$$


60

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 6, 3:08 AM ESTRip Current StatementMFLBroward, Miami-Dade, Palm Beach64 hr

Nearby

Red Flag Warnings in Florida, 2012Every red flag warning in 2012

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.