Alert archive / Florida / Freeze Warnings in 2021

Freeze Warning 3, NWS Tampa Bay, FL

February 2, 2021Citrus County, Levy County, Sumter County, Florida

NWS Tampa Bay, FL issued this freeze warning at Feb 2, 2021, 4:05 AM EST for Citrus County, Levy County, Sumter County, Florida. It took effect at Feb 3, 2021, 5:00 AM EST. It was in force for 3 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
Feb 2, 2021, 4:05 AM EST (09:05 UTC)
In effect from
Feb 3, 2021, 5:00 AM EST
Expired
Feb 3, 2021, 8:00 AM EST
In force
3 hr
Issued by
NWS Tampa Bay, FL

Counties Citrus County, FL, Levy County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 138 km from the middle of the area, began a volume at 09:06 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 00:00Z, 9.1 hours before the alert went out and 138 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 00:00Z on 2021-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939587897117Sfc1 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
2 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

177 
WWUS72 KTBW 020905
NPWTBW

URGENT - WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
405 AM EST Tue Feb 2 2021

FLZ239-242-031300-
/O.UPG.KTBW.FZ.A.0002.210203T1000Z-210203T1300Z/
/O.NEW.KTBW.FZ.W.0003.210203T1000Z-210203T1300Z/
Inland Levy-Inland Citrus-
Including the cities of Chiefland, Bronson, Williston, 
and Inverness
405 AM EST Tue Feb 2 2021

...FREEZE WARNING IN EFFECT FROM 5 AM TO 8 AM EST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Inland Levy and Inland Citrus Counties.

* WHEN...From 5 AM to 8 AM EST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze warning means widespread freezing temperatures are
expected to occur. Take steps now to protect tender plants from
the cold. Exposed outdoor water pipes may burst if not wrapped or
covered.

&&

$$

FLZ043-031300-
/O.NEW.KTBW.FZ.W.0003.210203T1000Z-210203T1300Z/
Sumter-
Including the cities of Wildwood, Lake Panasoffkee, Bushnell, 
and The Villages
405 AM EST Tue Feb 2 2021

...FREEZE WARNING IN EFFECT FROM 5 AM TO 8 AM EST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...Sumter County.

* WHEN...From 5 AM to 8 AM EST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze warning means widespread freezing temperatures are
expected to occur. Take steps now to protect tender plants from
the cold. Exposed outdoor water pipes may burst if not wrapped or
covered.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/tampa
2 follow-up statements
690 
WWUS72 KTBW 021958
NPWTBW

URGENT - WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
258 PM EST Tue Feb 2 2021

FLZ043-239-242-030400-
/O.NEW.KTBW.FZ.A.0003.210204T1000Z-210204T1300Z/
/O.CON.KTBW.FZ.W.0003.210203T1000Z-210203T1300Z/
Sumter-Inland Levy-Inland Citrus-
Including the cities of Wildwood, Lake Panasoffkee, Bushnell, 
The Villages, Chiefland, Bronson, Williston, and Inverness
258 PM EST Tue Feb 2 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 5 AM TO 8 AM EST
WEDNESDAY...
...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Freeze Watch, sub-freezing 
  temperatures as low as 31 possible.

* WHERE...Sumter, Inland Levy and Inland Citrus Counties.

* WHEN...For the Freeze Warning, from 5 AM to 8 AM EST 
  Wednesday. For the Freeze Watch, from late Wednesday night 
  through Thursday morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze warning means widespread freezing temperatures are
expected to occur. Take steps now to protect tender plants from
the cold. Exposed outdoor water pipes may burst if not wrapped or
covered.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/tampa
592 
WWUS72 KTBW 030827
NPWTBW

URGENT - WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
327 AM EST Wed Feb 3 2021

FLZ043-239-242-041300-
/O.UPG.KTBW.FZ.A.0003.210204T1000Z-210204T1300Z/
/O.NEW.KTBW.FZ.W.0004.210204T0900Z-210204T1300Z/
/O.CON.KTBW.FZ.W.0003.210203T1000Z-210203T1300Z/
Sumter-Inland Levy-Inland Citrus-
Including the cities of Wildwood, Lake Panasoffkee, Bushnell, 
The Villages, Chiefland, Bronson, Williston, and Inverness
327 AM EST Wed Feb 3 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 4 AM TO 8 AM EST THURSDAY...

* WHAT...For the first Freeze Warning, sub-freezing temperatures 
  as low as 30 expected. For the second Freeze Warning, sub- 
  freezing temperatures as low as 28 expected.

* WHERE...Sumter, Inland Levy and Inland Citrus Counties.

* WHEN...For the first Freeze Warning, until 8 AM EST this 
  morning. For the second Freeze Warning, from 4 AM to 8 AM EST 
  Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze warning means widespread freezing temperatures are
expected to occur. Take steps now to protect tender plants from
the cold. Exposed outdoor water pipes may burst if not wrapped or
covered.

&&

$$

FLZ139-142-148-248-249-041300-
/O.NEW.KTBW.FZ.W.0004.210204T0900Z-210204T1300Z/
Coastal Levy-Coastal Citrus-Coastal Hernando-Inland Hernando-
Inland Pasco-
Including the cities of Cedar Key, Yankeetown, Crystal River, 
Homosassa, Hernando Beach, Bayport, Brooksville, Spring Hill, 
Dade City, and Zephyrhills
327 AM EST Wed Feb 3 2021

...FREEZE WARNING IN EFFECT FROM 4 AM TO 8 AM EST THURSDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Coastal Levy, Coastal Citrus, Coastal Hernando, Inland 
  Hernando and Inland Pasco Counties.

* WHEN...From 4 AM to 8 AM EST Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze warning means widespread freezing temperatures are
expected to occur. Take steps now to protect tender plants from
the cold. Exposed outdoor water pipes may burst if not wrapped or
covered.

&&

$$

FLZ052-056-057-061-041300-
/O.NEW.KTBW.FZ.A.0004.210204T0900Z-210204T1300Z/
Polk-Hardee-Highlands-DeSoto-
Including the cities of Lakeland, Winter Haven, Wauchula, 
Bowling Green, Zolfo Springs, Sebring, Avon Park, Placid Lakes, 
and Arcadia
327 AM EST Wed Feb 3 2021

...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...

* WHAT...Sub-freezing temperatures possible.

* WHERE...Polk, Hardee, Highlands and DeSoto Counties.

* WHEN...From late tonight through Thursday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A freeze watch means there is the potential for widespread
freezing temperatures within the next 24 to 48 hours. Take steps
now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/tampa

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 2, 2:58 PM ESTFreeze WatchTBWCitrus, Levy, Sumter12 hr

Nearby

Freeze Warnings in Florida, 2021Every freeze warning in 2021

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.