Alert archive / Florida / Freeze Warnings in 2012

Freeze Warning 2, NWS Miami, FL

January 4, 2012Glades County, Florida

NWS Miami, FL issued this freeze warning at Jan 4, 2012, 3:00 PM EST for Glades County, Florida. It took effect at Jan 5, 2012, 1:00 AM EST. It was in force for 8 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 4, 2012, 3:00 PM EST (20:00 UTC)
In effect from
Jan 5, 2012, 1:00 AM EST
Expired
Jan 5, 2012, 9:06 AM EST
In force
8 hr
Issued by
NWS Miami, FL

County Glades County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.0 hours before the alert went out and 146 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, Tampa Bay, FL at 12:00Z on 2012-01-04Temperature 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, Tampa Bay, FL at 12:00Z on 2012-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.193958Sfc1 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
3028 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
-37 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.

308 
WWUS72 KMFL 042000
NPWMFL

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
300 PM EST WED JAN 4 2012

...FREEZE WARNING IN EFFECT FOR GLADES COUNTY TONIGHT THROUGH EARLY
THURSDAY MORNING...

...FROST ADVISORY IN EFFECT FOR HENDRY COUNTY AND INTERIOR
PORTIONS OF COLLIER AND PALM BEACH COUNTIES TONIGHT THROUGH EARLY THURSDAY
MORNING...

FLZ063-050400-
/O.UPG.KMFL.FZ.A.0002.120105T0600Z-120105T1300Z/
/O.NEW.KMFL.FZ.W.0002.120105T0600Z-120105T1400Z/
GLADES-
INCLUDING THE CITY OF...MOORE HAVEN
300 PM EST WED JAN 4 2012

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 1 AM TO 9 AM EST THURSDAY. THE
FREEZE WATCH IS NO LONGER IN EFFECT. 

* TEMPERATURE...TEMPERATURES ARE EXPECTED TO BE NEAR 30 DEGREES TO
  THE LOWER THIRTIES TONIGHT.

* IMPACTS...POTENTIAL DAMAGE TO CROPS AND OTHER SENSITIVE
  VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS TEMPERATURES OF 32 DEGREES OR LOWER ARE
IMMINENT OR HIGHLY LIKELY...FOR ANY DURATION OF TIME. THESE
CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$

FLZ067-070-050400-
/O.EXB.KMFL.FR.Y.0001.120105T0600Z-120105T1400Z/
INLAND PALM BEACH-INLAND COLLIER-
INCLUDING THE CITIES OF...PAHOKEE...SOUTH BAY...BELLE GLADE...
WELLINGTON...IMMOKALEE
300 PM EST WED JAN 4 2012

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 9 AM EST THURSDAY. 

* TEMPERATURE...TEMPERATURES ARE EXPECTED TO BE IN THE MID TO 
  UPPER THIRTIES TONIGHT WITH NEAR FREEZING TEMPERATURES 
  POSSIBLE IN ISOLATED AREAS. 

* IMPACTS...POTENTIAL DAMAGE TO CROPS AND OTHER SENSITIVE 
  VEGETATION AND PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

FLZ066-050400-
/O.EXT.KMFL.FR.Y.0001.120105T0600Z-120105T1400Z/
HENDRY-
INCLUDING THE CITY OF...CLEWISTON
300 PM EST WED JAN 4 2012

...FROST ADVISORY NOW IN EFFECT FROM 1 AM TO 9 AM EST THURSDAY...

* TEMPERATURE...TEMPERATURES ARE EXPECTED TO BE IN THE MID TO 
  UPPER THIRTIES TONIGHT WITH NEAR FREEZING TEMPERATURES 
  POSSIBLE IN ISOLATED AREAS. 

* IMPACTS...POTENTIAL DAMAGE TO CROPS AND OTHER SENSITIVE 
  VEGETATION AND PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
1 follow-up statement
681 
WWUS72 KMFL 051406
NPWMFL

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
906 AM EST THU JAN 5 2012

...FREEZE WARNING IS CANCELLED...

...FROST ADVISORY IS CANCELLED...


FLZ063-051515-
/O.CAN.KMFL.FZ.W.0002.000000T0000Z-120105T1400Z/
GLADES-
INCLUDING THE CITY OF...MOORE HAVEN
906 AM EST THU JAN 5 2012

...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE FREEZE
WARNING. 

REGIONAL OBSERVATIONS INDICATE THAT TEMPERATURES ACROSS GLADES
COUNTY HAVE RISEN ABOVE FREEZING AND WILL CONTINUE TO STEADILY
CLIMB. THEREFORE THE FREEZE WARNING HAS BEEN CANCELLED.

$$

FLZ066-067-070-051515-
/O.CAN.KMFL.FR.Y.0001.000000T0000Z-120105T1400Z/
HENDRY-INLAND PALM BEACH-INLAND COLLIER-
INCLUDING THE CITIES OF...CLEWISTON...PAHOKEE...SOUTH BAY...
BELLE GLADE...WELLINGTON...IMMOKALEE
906 AM EST THU JAN 5 2012

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELLED THE FROST
ADVISORY. 

REGIONAL OBSERVATIONS INDICATE THAT TEMPERATURES ACROSS THE
ADVISORY AREA CONTINUE TO STEADILY CLIMB. ALTHOUGH FROST MAY
LINGER IN ISOLATED AREAS...TEMPERATURES WILL CONTINUE TO STEADILY
CLIMB OVER THE NEXT SEVERAL HOURS. THEREFORE THE FREEZE WARNING HAS
BEEN CANCELLED.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 9:39 PM ESTWind Chill AdvisoryMFLBroward, Miami-Dade, Palm Beach11 hr
Jan 3, 10:24 PM ESTSmall Craft Advisory for Hazardous SeasMFL24 hr
Jan 4, 4:12 AM ESTFrost AdvisoryMFLCollier, Hendry, Palm Beach29 hr
Jan 4, 4:12 AM ESTFreeze WatchMFLGlades11 hr

Nearby

Freeze Warnings in Florida, 2012Every freeze 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.