Alert archive / Florida / Wind Chill Advisories in 2011

Wind Chill Advisory 2, NWS Melbourne, FL

January 12, 20116 counties in Florida

NWS Melbourne, FL issued this wind chill advisory at Jan 12, 2011, 3:50 PM EST for 6 counties in Florida. It took effect at Jan 12, 2011, 10:00 PM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jan 12, 2011, 3:50 PM EST (20:50 UTC)
In effect from
Jan 12, 2011, 10:00 PM EST
Expired
Jan 13, 2011, 10:00 AM EST
In force
12 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 radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 20:47 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 12:00Z, 8.8 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 2011-01-12Temperature 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 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 2011-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897Sfc1 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
1526 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
98 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.

702 
WWUS42 KMLB 122050
WSWMLB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
ISSUED BY NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
350 PM EST WED JAN 12 2011

...VERY LOW WIND CHILL VALUES TONIGHT AND EARLY THURSDAY...

.THE COMBINATION OF A LARGE OCEAN STORM OFF THE NEW ENGLAND COAST
AND STRONG HIGH PRESSURE OVER THE CENTRAL PLAINS WILL CONTINUE TO
DRIVE COLD AIR INTO THE REGION ON NORTHERLY WINDS.

FLZ041-044>047-053-054-058-059-064-141-144-147-131500-
/O.NEW.KMLB.WC.Y.0002.110113T0300Z-110113T1500Z/
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...DE LAND...LEESBURG...ORLANDO...
SANFORD...MELBOURNE...PALM BAY...KISSIMMEE...ST CLOUD...
VERO BEACH...OKEECHOBEE...FORT PIERCE...HOBE SOUND...
DAYTONA BEACH...CLERMONT...TITUSVILLE
350 PM EST WED JAN 12 2011

...WIND CHILL ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM
EST THURSDAY. 

WINDS ARE EXPECTED TO REMAIN OUT OF THE NORTH AND NORTHWEST AT
AROUND 10 MPH WITH SOME HIGHER GUSTS NEAR THE COAST. WIND CHILL
VALUES WILL FALL TO BETWEEN 20 AND 25 DEGREES OVERNIGHT WITH
BRIEFLY LOWER VALUES POSSIBLE OVER THE INTERIOR NORTH OF
OKEECHOBEE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT COLD AIR AND STRONG WINDS WILL
COMBINE TO GENERATE LOW WIND CHILLS. IF YOU MUST VENTURE
OUTDOORS....DRESS WARMLY IN LAYERS AND MAKE SURE YOU WEAR A HAT
AND GLOVES.

&&

$$
1 follow-up statement
701 
WWUS42 KMLB 130833
WSWMLB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
333 AM EST THU JAN 13 2011

FLZ041-044>047-053-054-058-059-064-141-144-147-131500-
/O.CON.KMLB.WC.Y.0002.000000T0000Z-110113T1500Z/
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...DE LAND...LEESBURG...ORLANDO...
SANFORD...MELBOURNE...PALM BAY...KISSIMMEE...ST CLOUD...
VERO BEACH...OKEECHOBEE...FORT PIERCE...HOBE SOUND...
DAYTONA BEACH...CLERMONT...TITUSVILLE
333 AM EST THU JAN 13 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING. 

TEMPERATURES HAVE DROPPED INTO THE MID TO UPPER 30S ACROSS THE
REGION AND ARE EXPECTED TO CONTINUE TO FALL TO BELOW FREEZING FOR
MOST LOCATIONS BY DAYBREAK. NORTH TO NORTHWEST WINDS REMAIN AROUND
10 TO 15 MPH WITH OCCASIONAL HIGHER GUSTS TO AROUND 20 MPH. THE
COMBINATION OF COLD TEMPERATURES AND WINDS WILL PRODUCE WIND CHILL
VALUES RANGING FROM THE UPPER TEENS ACROSS INLAND VOLUSIA AND LAKE
COUNTIES INTO THE LOW TO MID 20S ACROSS THE ORLANDO
METRO...BREVARD AND OSCEOLA COUNTIES. TEMPERATURES WILL REMAIN
SLIGHTLY WARMER ACROSS MARTIN AND SAINT LUCIE COUNTIES...AND WIND
CHILLS WILL DROP INTO THE UPPER 20S AND LOW 30S BY SUNRISE. 

TEMPERATURES WILL BE SLOW TO WARM AGAIN THIS MORNING AND WIND
CHILLS WILL REMAIN IN THE LOW TO MID 30S IN THE COLDEST LOCATIONS
THROUGH MID MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT COLD AIR AND STRONG WINDS WILL
COMBINE TO GENERATE LOW WIND CHILLS. IF YOU MUST VENTURE
OUTDOORS....DRESS WARMLY IN LAYERS AND MAKE SURE YOU WEAR A HAT
AND GLOVES.

&&

$$

MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 3:18 AM ESTFire Weather WatchMLBLake, Okeechobee, Orange, Osceola, Seminole23 hr
Jan 12, 3:29 AM ESTFreeze WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia29 hr
Jan 12, 3:41 PM ESTHard Freeze WarningMLBLake16 hr

Nearby

Wind Chill Advisories in Florida, 2011Every wind chill advisory in 2011

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.