Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 2, NWS Miami, FL

January 15, 20125 counties in Florida

NWS Miami, FL issued this red flag warning at Jan 15, 2012, 9:38 AM EST for 5 counties in Florida. It took effect at Jan 15, 2012, 10:00 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
Jan 15, 2012, 9:38 AM EST (14:38 UTC)
In effect from
Jan 15, 2012, 10:00 AM EST
Expired
Jan 15, 2012, 5:00 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, Palm Beach County, FL

The radar

The Miami radar (KAMX), 55 km from the middle of the area, began a volume at 14:36 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, 2.6 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.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2012-01-15Temperature 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 12:00Z on 2012-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -114 square meters per square second.1939587897Sfc1 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
4092 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-114 m²/s²
0-3 km storm-relative helicity
5 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.

209 
WWUS82 KMFL 151438
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
938 AM EST SUN JAN 15 2012

...RED FLAG WARNING ALL OF SOUTH FLORIDA TODAY...

FLZ063-066>075-168-172>174-152200-
/O.NEW.KMFL.FW.W.0002.120115T1500Z-120115T2200Z/
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-
938 AM EST SUN JAN 15 2012

...RED FLAG WARNING IN EFFECT UNTIL 5 PM EST THIS AFTERNOON FOR
RELATIVE HUMIDITY VALUES BELOW 35 PERCENT AND SUSTAINED 20 FOOT
WINDS OF AT LEAST 15MPH FOR FIRE WEATHER ZONES 063...066...067...
068...069...070...071...072...073...074...075...168...172...173
AND 174...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON. 

* AFFECTED AREA...FIRE WEATHER ZONES 063...066...067...068... 
  069...070...071...072...073...074...075...168...172...173 AND 
  174. 

* WIND...NORTH WINDS AT THE 20 FOOT LEVEL ARE FORECAST TO INCREASE
  TO 15 MPH WITH HIGHER GUSTS LATER THIS MORNING AND CONTINUE INTO
  THE AFTERNOON.

* HUMIDITY...DRY CONTINENTAL AIR WILL REMAIN IN PLACE OVER SOUTH
  FLORIDA TODAY, WITH RELATIVE HUMIDITY VALUES IN THE 20 TO 30
  PERCENT RANGE OVER ALL OF SOUTH FLORIDA THROUGH MOST OF THE
  AFTERNOON. 

* ENERGY RELEASE COMPONENT (ERC)...ERC VALUES ARE FORECAST TO BE
  IN THE 30 TO 35 RANGE TODAY.

* HIGHEST THREAT...LOWEST RELATIVE HUMIDITY VALUES AND GREATEST
  POTENTIAL FOR WINDS OF GREATER THAN 15 MPH WILL BE OVER THE
  EASTERN HALF OF THE SOUTH FLORIDA PENINSULA.

* 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 AND VERY LOW RELATIVE HUMIDITY VALUES...ALONG WITH
WARMING TEMPERATURES...WILL CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

&&

$$

MOLLEDA

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.