Alert archive / Florida / Wind Chill Advisories in 2021

Wind Chill Advisory 2, NWS Melbourne, FL

February 2, 20216 counties in Florida

NWS Melbourne, FL issued this wind chill advisory at Feb 2, 2021, 1:25 PM EST for 6 counties in Florida. It took effect at Feb 3, 2021, 2:00 AM EST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Feb 2, 2021, 1:25 PM EST (18:25 UTC)
In effect from
Feb 3, 2021, 2:00 AM EST
Expired
Feb 3, 2021, 9:00 AM EST
In force
7 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.4 hours before the alert went out and 73 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 12:00Z on 2021-02-02Temperature 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, Cape Canaveral, FL at 12:00Z on 2021-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897117136Sfc1 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
1003 m above ground
0-6 km bulk shear
110 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

687 
WWUS42 KMLB 021825
WSWMLB

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

FLZ041-044>047-053-054-058-059-064-141-144-147-031400-
/O.NEW.KMLB.WC.Y.0002.210203T0700Z-210203T1400Z/
Inland Volusia-Northern Lake-Orange-Seminole-Southern Brevard-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Apopka, Maitland, Orlando, 
Winter Park, Union Park, Altamonte Springs, Casselberry, Oviedo, 
Sanford, Winter Springs, Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, Fort Pierce, 
Hobe Sound, Jensen Beach, Port Salerno, Stuart, Daytona Beach, 
New Smyrna Beach, Ormond Beach, Clermont, Mascotte, Groveland, 
Cocoa, and Titusville
125 PM EST Tue Feb 2 2021

...WIND CHILL ADVISORY IN EFFECT FROM 2 AM TO 9 AM EST
WEDNESDAY...

* WHAT...Cold wind chills expected. Air temperatures in the low to
  mid 30s, and west to northwest winds around 10 mph across the
  interior and 10 to 15 mph along the coast will lead to wind
  chills ranging from 26 to 33 degrees late tonight through early
  morning Wednesday.

* WHERE...Volusia, Lake, Orange, Seminole, Brevard, Osceola,
  Indian River, Okeechobee, St. Lucie, and Martin Counties.

* WHEN...2 AM to 9 AM Wednesday.

* 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...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Make sure you dress
appropriately for the cold weather, including a coat, a hat and
gloves.

$$
1 follow-up statement
729 
WWUS42 KMLB 030848
WSWMLB

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

FLZ041-044>047-053-054-058-059-064-141-144-147-031400-
/O.CON.KMLB.WC.Y.0002.000000T0000Z-210203T1400Z/
Inland Volusia-Northern Lake-Orange-Seminole-Southern Brevard-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
Including the cities of Debary, Deland, Deltona, Eustis, 
Mount Dora, Leesburg, Tavares, Apopka, Maitland, Orlando, 
Winter Park, Union Park, Altamonte Springs, Casselberry, Oviedo, 
Sanford, Winter Springs, Melbourne, Palm Bay, Rockledge, 
Celebration, Kissimmee, Saint Cloud, Sebastian, Vero Beach, 
Basinger, Fort Drum, Okeechobee, Port Saint Lucie, Fort Pierce, 
Hobe Sound, Jensen Beach, Port Salerno, Stuart, Daytona Beach, 
New Smyrna Beach, Ormond Beach, Clermont, Mascotte, Groveland, 
Cocoa, and Titusville
348 AM EST Wed Feb 3 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS
MORNING...

* WHAT...Cold wind chills expected. Expect wind chills to range
  from 29 to 34.

* WHERE...Volusia, Lake, Orange, Seminole, Brevard, Osceola,
  Indian River, Okeechobee, St. Lucie, and Martin Counties.

* WHEN...Now to 9 AM this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Make sure you dress
appropriately for the cold weather, including a coat, a hat and
gloves.

$$

Rodriguez

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 2, 3:04 AM ESTFreeze WarningMLBLake, Volusia30 hr

Nearby

Wind Chill Advisories in Florida, 2021Every wind chill advisory 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.