Alert archive / Florida / Freeze Warnings in 2021

Freeze Warning 1, NWS Melbourne, FL

February 2, 2021Lake County, Volusia County, Florida

NWS Melbourne, FL issued this freeze warning at Feb 2, 2021, 3:04 AM EST for Lake County, Volusia County, Florida. It took effect at Feb 3, 2021, 4:00 AM EST. It was in force for 5 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, 3:04 AM EST (08:04 UTC)
In effect from
Feb 3, 2021, 4:00 AM EST
Expired
Feb 3, 2021, 9:00 AM EST
In force
5 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 117 km from the middle of the area, began a volume at 07:52 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.1 hours before the alert went out and 103 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, Cape Canaveral, FL at 00:00Z on 2021-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Cape Canaveral, FL at 00:00Z on 2021-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1000 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WWUS72 KMLB 020804
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
304 AM EST Tue Feb 2 2021

FLZ041-044-144-022100-
/O.NEW.KMLB.FZ.W.0001.210203T0900Z-210203T1400Z/
Inland Volusia-Northern Lake-Southern Lake-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Clermont, Mascotte, and Groveland
304 AM EST Tue Feb 2 2021

...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EST WEDNESDAY...

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

* WHERE...Inland Volusia and Lake Counties.

* WHEN...From 4 AM to 9 AM EST Wednesday.

* IMPACTS...Freezing temperatures will hurt sensitive persons and
  outdoor pets. Frost and freeze conditions will kill crops other
  sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters may be open in your 
  location tonight. Check with local county emergency management 
  for locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

Rodriguez
2 follow-up statements
315 
WWUS72 KMLB 021815
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
115 PM EST Tue Feb 2 2021

FLZ141-031400-
/O.EXA.KMLB.FZ.W.0001.210203T0900Z-210203T1400Z/
Coastal Volusia-
Including the cities of Daytona Beach, New Smyrna Beach, 
and Ormond Beach
115 PM EST Tue Feb 2 2021

...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EST WEDNESDAY...

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

* WHERE...Coastal Volusia County.

* WHEN...From 4 AM to 9 AM EST Wednesday.

* IMPACTS...Freezing temperatures will hurt sensitive persons and
  outdoor pets. Frost and freeze conditions will kill crops other
  sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters may be open in your 
  location tonight. Check with local county emergency management 
  for locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

FLZ041-044-144-031400-
/O.CON.KMLB.FZ.W.0001.210203T0900Z-210203T1400Z/
Inland Volusia-Northern Lake-Southern Lake-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Clermont, Mascotte, and Groveland
115 PM EST Tue Feb 2 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 9 AM EST
WEDNESDAY...

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

* WHERE...Inland Volusia and Lake Counties.

* WHEN...From 4 AM to 9 AM EST Wednesday.

* IMPACTS...Freezing temperatures will hurt sensitive persons and
  outdoor pets. Frost and freeze conditions will kill crops other
  sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters may be open in your 
  location tonight. Check with local county emergency management 
  for locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$
371 
WWUS72 KMLB 030853
NPWMLB

URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
353 AM EST Wed Feb 3 2021

FLZ041-044-141-144-032100-
/O.NEW.KMLB.FZ.W.0002.210204T0600Z-210204T1300Z/
/O.CON.KMLB.FZ.W.0001.210203T0900Z-210203T1400Z/
Inland Volusia-Northern Lake-Coastal Volusia-Southern Lake-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Daytona Beach, New Smyrna Beach, 
Ormond Beach, Clermont, Mascotte, and Groveland
353 AM EST Wed Feb 3 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM EST THURSDAY...

* WHAT...Sub-freezing temperatures as low as 32 expected this
  morning. For the second Freeze Warning, sub-freezing 
  temperatures as low as 31 expected Fromtonight.

* WHERE...Volusia and Lake Counties

* WHEN...Through 9 AM this morning. For the second Freeze Warning,
  from 1 AM to 8 AM Thursday.

* IMPACTS...Freezing temperatures will hurt sensitive persons 
  and outdoor pets. Frost and freeze conditions will kill crops 
  other sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters are open in many 
communities. Check with local county emergency management for 
locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

FLZ045-046-147-032100-
/O.NEW.KMLB.FZ.W.0002.210204T0600Z-210204T1300Z/
Orange-Seminole-Northern Brevard-
Including the cities of Apopka, Maitland, Orlando, Winter Park, 
Union Park, Altamonte Springs, Casselberry, Oviedo, Sanford, 
Winter Springs, Cocoa, and Titusville
353 AM EST Wed Feb 3 2021

...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM EST THURSDAY...

* WHAT...Sub-freezing temperatures as low as 32 expected.

* WHERE...Orange, Seminole and Northern Brevard Counties.

* WHEN...From 1 AM to 8 AM EST Thursday.

* IMPACTS...Freezing temperatures will hurt sensitive persons 
  and outdoor pets. Frost and freeze conditions will kill crops 
  other sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters are open in many 
communities. Check with local county emergency management for 
locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

FLZ047-053-054-058-059-032100-
/O.NEW.KMLB.FZ.A.0001.210204T0600Z-210204T1300Z/
Southern Brevard-Osceola-Indian River-Okeechobee-St. Lucie-
Including the cities of Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, 
and Fort Pierce
353 AM EST Wed Feb 3 2021

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

* WHAT...Sub-freezing temperatures as low as 32 possible.

* WHERE...Southern Brevard, Osceola, Indian River, Okeechobee 
  and St. Lucie Counties.

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

* IMPACTS...Freezing temperatures could hurt sensitive persons 
  and outdoor pets. Frost and freeze conditions could kill crops 
  other sensitive vegetation.

* ADDITIONAL DETAILS...Cold weather shelters are open in many 
communities. Check with local county emergency management for 
locations and operating hours of shelters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect the elderly, children, outdoor pets,
tender plants, and crops from the freezing temperatures.

&&

$$

Rodriguez

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 2, 1:25 PM ESTWind Chill AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia20 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.