Alert archive / Florida / Wind Chill Advisories in 2010

Wind Chill Advisory 21, NWS Melbourne, FL

December 27, 20106 counties in Florida

NWS Melbourne, FL issued this wind chill advisory at Dec 27, 2010, 10:05 AM EST for 6 counties in Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Dec 27, 2010, 10:05 AM EST (15:05 UTC)
Expired
Dec 27, 2010, 11:00 AM EST
In force
55 min
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 15:07 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, 3.1 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 2010-12-27Temperature 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 2010-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
917 m above ground
0-6 km bulk shear
107 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
22 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.

966 
WWUS42 KMLB 271505
WSWMLB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
1005 AM EST MON DEC 27 2010

FLZ041-044>047-053-054-058-059-064-141-144-147-271615-
/O.EXP.KMLB.WC.Y.0020.000000T0000Z-101227T1500Z/
/O.NEW.KMLB.WC.Y.0021.101227T1505Z-101227T1600Z/
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
1005 AM EST MON DEC 27 2010

...WIND CHILL ADVISORY IN EFFECT UNTIL 11 AM EST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS EXTENDED THE WIND
CHILL ADVISORY...WHICH IS NOW IN EFFECT UNTIL 11 AM EST THIS
MORNING.

WHILE TEMPERATURES HAVE RISEN INTO THE MID 30S TO LOWER 40S AS
OF 10 AM...NORTHWEST WINDS OF 15 TO 20 MPH GUSTING TO 25 TO 30 MPH
WILL KEEP WIND CHILLS BELOW 32 DEGREES THROUGH 11 AM.

BRISK NORTHWEST WINDS WILL KEEP IT QUITE CHILLY FEELING THROUGHOUT
THE DAY.

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 OUTSIDE
...DRESS WARMLY IN LAYERS AND MAKE SURE TO WEAR A HAT AND GLOVES.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 4:33 AM ESTFreeze WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia27 hr
Dec 27, 4:54 AM ESTRed Flag WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia38 hr
Dec 27, 2:28 PM ESTFire Weather WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia24 hr
Dec 27, 3:15 PM ESTFreeze WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia13 hr
Dec 27, 3:15 PM ESTHard Freeze WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia17 hr

Nearby

Wind Chill Advisories in Florida, 2010Every wind chill advisory in 2010

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.