Alert archive / Florida / Freeze Warnings in 2012

Freeze Warning 13, NWS Tampa Bay, FL

December 22, 20124 counties in Florida

NWS Tampa Bay, FL issued this freeze warning at Dec 22, 2012, 2:52 PM EST for 4 counties in Florida. It took effect at Dec 22, 2012, 11:00 PM EST. It was in force for 10 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
Dec 22, 2012, 2:52 PM EST (19:52 UTC)
In effect from
Dec 22, 2012, 11:00 PM EST
Expired
Dec 23, 2012, 9:00 AM EST
In force
10 hr
Issued by
NWS Tampa Bay, FL

Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 63 km from the middle of the area, began a volume at 19:51 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

Tampa Bay, FL (KTBW), launched 12:00Z, 7.9 hours before the alert went out and 63 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 2012-12-22Temperature 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 2012-12-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 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
2023 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
-42 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.

969 
WWUS72 KTBW 221952
NPWTBW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
252 PM EST SAT DEC 22 2012

...FREEZING TEMPERATURES ARE EXPECTED AGAIN ACROSS THE NATURE
COAST LATE TONIGHT INTO EARLY SUNDAY MORNING...

.ANOTHER COLD NIGHT IS EXPECTED ACROSS WEST-CENTRAL AND SOUTHWEST
FLORIDA WITH MANY AREAS DROPPING BELOW FREEZING.

FLZ039-042-048-231400-
/O.UPG.KTBW.FZ.A.0010.121223T0700Z-121223T1400Z/
/O.NEW.KTBW.HZ.W.0005.121223T0400Z-121223T1400Z/
LEVY-CITRUS-HERNANDO-
INCLUDING THE CITIES OF...CEDAR KEY...CHIEFLAND...CRYSTAL RIVER...
INVERNESS...BROOKSVILLE...SPRING HILL
252 PM EST SAT DEC 22 2012

...HARD FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A HARD FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 9 AM EST SUNDAY. 

* TEMPERATURE...5 TO 7 HOURS OF TEMPERATURES BELOW FREEZING ARE
  LIKELY ACROSS THE WARNING AREA LATE TONIGHT INTO EARLY SUNDAY
  MORNING.

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE
IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND
OTHER SENSITIVE VEGETATION.

&&

$$

FLZ043-049-231400-
/O.UPG.KTBW.FZ.A.0010.121223T0700Z-121223T1400Z/
/O.NEW.KTBW.FZ.W.0013.121223T0400Z-121223T1400Z/
SUMTER-PASCO-
INCLUDING THE CITIES OF...BUSHNELL...THE VILLAGES...
NEW PORT RICHEY...ZEPHYRHILLS
252 PM EST SAT DEC 22 2012

...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 9 AM EST SUNDAY. 

* TEMPERATURE...5 TO 7 HOURS OF TEMPERATURES BELOW FREEZING ARE
  EXPECTED ACROSS THE WARNING AREA LATE TONIGHT INTO EARLY SUNDAY
  MORNING.

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING IS ISSUED FOR 2 OR MORE HOURS OF TEMPERATURES
BETWEEN 27 AND 32 OVER A WIDESPREAD AREA.

RESIDENTS SHOULD COVER OR MOVE INDOORS ANY COLD SENSITIVE
PLANTS...AND BRING PETS INDOORS THIS EVENING.

&&

$$

FLZ056-057-061-231400-
/O.NEW.KTBW.FZ.W.0013.121223T0400Z-121223T1400Z/
HARDEE-HIGHLANDS-DESOTO-
INCLUDING THE CITIES OF...WAUCHULA...SEBRING...AVON PARK...
ARCADIA
252 PM EST SAT DEC 22 2012

...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 9 AM EST SUNDAY. 

* TEMPERATURE...5 TO 7 HOURS OF TEMPERATURES BELOW FREEZING ARE
  EXPECTED ACROSS THE WARNING AREA LATE TONIGHT INTO EARLY
  SUNDAY MORNING.

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING IS ISSUED FOR 2 OR MORE HOURS OF TEMPERATURES
BETWEEN 27 AND 32 OVER A WIDESPREAD AREA.

RESIDENTS SHOULD COVER OR MOVE INDOORS ANY COLD SENSITIVE
PLANTS...AND BRING PETS INDOORS THIS EVENING.

&&

$$

FLZ051-052-055-060-062-065-231400-
/O.NEW.KTBW.FR.Y.0005.121223T0400Z-121223T1400Z/
HILLSBOROUGH-POLK-MANATEE-SARASOTA-CHARLOTTE-LEE-
INCLUDING THE CITIES OF...BRANDON...TAMPA...LAKELAND...
WINTER HAVEN...BRADENTON...NORTH PORT...SARASOTA...VENICE...
PORT CHARLOTTE...PUNTA GORDA...CAPE CORAL...FORT MYERS
252 PM EST SAT DEC 22 2012

...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 9 AM EST SUNDAY. 

* TEMPERATURE...TEMPERATURES WILL FALL TO BETWEEN 32 AND 36
  DEGREES RESULTING IN AREAS OF FROST.

* IMPACTS...FROST WILL KILL SENSITIVE PLANTS. PLANTS SHOULD BE
  COVERED OR BROUGHT INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT
  INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
769 
WWUS72 KTBW 230228
NPWTBW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
928 PM EST SAT DEC 22 2012

...FREEZING TEMPERATURES ARE EXPECTED AGAIN ACROSS THE NATURE
COAST LATE TONIGHT INTO EARLY SUNDAY MORNING...

.ANOTHER COLD NIGHT IS EXPECTED ACROSS WEST-CENTRAL AND SOUTHWEST
FLORIDA WITH MANY AREAS DROPPING BELOW FREEZING.

FLZ051-055-060-062-231400-
/O.UPG.KTBW.FR.Y.0005.121223T0400Z-121223T1400Z/
/O.EXA.KTBW.FZ.W.0013.121223T0400Z-121223T1400Z/
HILLSBOROUGH-MANATEE-SARASOTA-CHARLOTTE-
INCLUDING THE CITIES OF...BRANDON...TAMPA...BRADENTON...
NORTH PORT...SARASOTA...VENICE...PORT CHARLOTTE...PUNTA GORDA
928 PM EST SAT DEC 22 2012

...FREEZE WARNING IN EFFECT UNTIL 9 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A FREEZE WARNING...WHICH IS IN EFFECT UNTIL 9 AM EST
SUNDAY. THE FROST ADVISORY IS NO LONGER IN EFFECT. 

* TEMPERATURE...TEMPERATURES WILL FALL TO BETWEEN 30 AND 32
  DEGREES FOR A COUPLE HOURS AROUND DAYBREAK SUNDAY. 

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING IS ISSUED FOR 2 OR MORE HOURS OF TEMPERATURES
BETWEEN 27 AND 32 OVER A WIDESPREAD AREA.

RESIDENTS SHOULD COVER OR MOVE INDOORS ANY COLD SENSITIVE
PLANTS...AND BRING PETS INDOORS THIS EVENING.

&&

$$

FLZ039-042-048-231400-
/O.CON.KTBW.HZ.W.0005.121223T0400Z-121223T1400Z/
LEVY-CITRUS-HERNANDO-
INCLUDING THE CITIES OF...CEDAR KEY...CHIEFLAND...CRYSTAL RIVER...
INVERNESS...BROOKSVILLE...SPRING HILL
928 PM EST SAT DEC 22 2012

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST SUNDAY...

* TEMPERATURE...5 TO 7 HOURS OF TEMPERATURES BELOW FREEZING ARE 
  LIKELY ACROSS THE WARNING AREA LATE TONIGHT INTO EARLY SUNDAY 
  MORNING. 

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE
IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND
OTHER SENSITIVE VEGETATION.

&&

$$

FLZ043-049-056-057-061-231400-
/O.CON.KTBW.FZ.W.0013.121223T0400Z-121223T1400Z/
SUMTER-PASCO-HARDEE-HIGHLANDS-DESOTO-
INCLUDING THE CITIES OF...BUSHNELL...THE VILLAGES...
NEW PORT RICHEY...ZEPHYRHILLS...WAUCHULA...SEBRING...AVON PARK...
ARCADIA
928 PM EST SAT DEC 22 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST SUNDAY...

* TEMPERATURE...3 TO 5 HOURS OF TEMPERATURES BELOW FREEZING ARE 
  EXPECTED ACROSS THE WARNING AREA LATE TONIGHT INTO EARLY 
  SUNDAY MORNING. 

* IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT 
  INDOORS TONIGHT. PETS SHOULD ALSO BE BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING IS ISSUED FOR 2 OR MORE HOURS OF TEMPERATURES
BETWEEN 27 AND 32 OVER A WIDESPREAD AREA.

RESIDENTS SHOULD COVER OR MOVE INDOORS ANY COLD SENSITIVE
PLANTS...AND BRING PETS INDOORS THIS EVENING.

&&

$$

FLZ052-065-231400-
/O.CON.KTBW.FR.Y.0005.121223T0400Z-121223T1400Z/
POLK-LEE-
INCLUDING THE CITIES OF...LAKELAND...WINTER HAVEN...CAPE CORAL...
FORT MYERS
928 PM EST SAT DEC 22 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST SUNDAY...

* TEMPERATURE...TEMPERATURES WILL FALL TO BETWEEN 32 AND 37
  DEGREES RESULTING IN AREAS OF FROST. A FEW MORE SHELTERED
  LOCATIONS MAY DROP TO AS LOW AS 30 DEGREES IN POLK COUNTY. 

* IMPACTS...FROST WILL KILL SENSITIVE PLANTS. PLANTS SHOULD BE 
  COVERED OR BROUGHT INDOORS TONIGHT. PETS SHOULD ALSO BE 
  BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
152 
WWUS72 KTBW 231403
NPWTBW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
903 AM EST SUN DEC 23 2012

...TEMPERATURES NOW ABOVE FREEZING...

.TEMPERATURES HAVE RISEN TO ABOVE FREEZING AND ANY LINGERING FROST
WILL BE GONE WITHIN THE HOUR.

FLZ039-042-048-231515-
/O.EXP.KTBW.HZ.W.0005.000000T0000Z-121223T1400Z/
LEVY-CITRUS-HERNANDO-
INCLUDING THE CITIES OF...CEDAR KEY...CHIEFLAND...CRYSTAL RIVER...
INVERNESS...BROOKSVILLE...SPRING HILL
903 AM EST SUN DEC 23 2012

...HARD FREEZE WARNING HAS EXPIRED...

TEMPERATURES ARE NOW ABOVE FREEZING.

$$

FLZ043-049-051-055>057-060>062-231515-
/O.EXP.KTBW.FZ.W.0013.000000T0000Z-121223T1400Z/
SUMTER-PASCO-HILLSBOROUGH-MANATEE-HARDEE-HIGHLANDS-SARASOTA-
DESOTO-CHARLOTTE-
INCLUDING THE CITIES OF...BUSHNELL...THE VILLAGES...
NEW PORT RICHEY...ZEPHYRHILLS...BRANDON...TAMPA...BRADENTON...
WAUCHULA...SEBRING...AVON PARK...NORTH PORT...SARASOTA...VENICE...
ARCADIA...PORT CHARLOTTE...PUNTA GORDA
903 AM EST SUN DEC 23 2012

...FREEZE WARNING HAS EXPIRED...

TEMPERATURES ARE NOW ABOVE FREEZING.

$$

FLZ052-065-231515-
/O.EXP.KTBW.FR.Y.0005.000000T0000Z-121223T1400Z/
POLK-LEE-
INCLUDING THE CITIES OF...LAKELAND...WINTER HAVEN...CAPE CORAL...
FORT MYERS
903 AM EST SUN DEC 23 2012

...FROST ADVISORY HAS EXPIRED...

ANY LINGERING FROST WILL BE GONE WITHIN THE HOUR.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 3:23 AM ESTRed Flag WarningTBWPinellas15 hr
Dec 22, 1:55 PM ESTFire Weather WatchTBWPinellas8 hr
Dec 22, 2:52 PM ESTFrost AdvisoryTBWPolk18 hr
Dec 22, 2:52 PM ESTHard Freeze WarningTBW18 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; radar from the NEXRAD Level II archive.