Alert archive / Florida / Wind Chill Advisories in 2012
Wind Chill Advisory 3, NWS Melbourne, FL
NWS Melbourne, FL issued this wind chill advisory at Dec 21, 2012, 4:11 AM EST for 6 counties in Florida. It took effect at Dec 22, 2012, 1:00 AM EST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Dec 21, 2012, 4:11 AM EST (09:11 UTC)
- In effect from
- Dec 22, 2012, 1:00 AM EST
- Expired
- Dec 22, 2012, 9:00 AM EST
- In force
- 8 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
Tampa Bay, FL (KTBW), launched 00:00Z, 9.2 hours before the alert went out and 139 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.
- Mixed-layer CAPE
- 97 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
158 WWUS42 KMLB 210911 WSWMLB URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 411 AM EST FRI DEC 21 2012 ...NEAR TO BELOW FREEZING WIND CHILL VALUES EXPECTED LATE FRIDAY NIGHT INTO EARLY SATURDAY MORNING... FLZ041-044>047-053-054-058-059-064-141-144-147-221400- /O.NEW.KMLB.WC.Y.0003.121222T0600Z-121222T1400Z/ 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 411 AM EST FRI DEC 21 2012 ...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 9 AM EST SATURDAY... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 9 AM EST SATURDAY. * NORTHWEST WINDS UP TO 10 TO 15 MPH WILL COMBINE WITH CHILLY OVERNIGHT TEMPERATURES ACROSS THE AREA TO PRODUCE WIND CHILL VALUES IN THE UPPER 20S TO LOW 30S LATE TONIGHT INTO EARLY SATURDAY 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. && $$ WEITLICH
1 follow-up statement
734 WWUS42 KMLB 220922 WSWMLB URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 422 AM EST SAT DEC 22 2012 ...NEAR TO BELOW FREEZING WIND CHILL VALUES EXPECTED LATE FRIDAY NIGHT INTO EARLY SATURDAY MORNING... FLZ041-044>047-053-054-058-059-064-141-144-147-221400- /O.CON.KMLB.WC.Y.0003.000000T0000Z-121222T1400Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- INCLUDING THE CITIES OF...DE LAND...LEESBURG...ORLANDO... SANFORD...MELBOURNE...PALM BAY...KISSIMMEE...ST CLOUD... VERO BEACH...OKEECHOBEE...FORT PIERCE...HOBE SOUND... DAYTONA BEACH...CLERMONT...TITUSVILLE 422 AM EST SAT DEC 22 2012 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * NORTHWEST WINDS UP TO 10 TO 15 MPH WILL COMBINE WITH CHILLY TEMPERATURES TO PRODUCE WIND CHILL VALUES RANGING FROM THE UPPER 20S TO LOW 30S EARLY THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. IF YOU MUST VENTURE OUTDOORS...DRESS WARMLY IN LAYERS AND MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ WEITLICH
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 10:12 PM EST | Special Weather Statement | MLB | Lake, Seminole | 48 min |
| Dec 21, 4:03 AM EST | Lake Wind Advisory | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 14 hr |
| Dec 21, 2:08 PM EST | Freeze Warning | MLB | Lake | 17 hr |
| Dec 21, 2:49 PM EST | Fire Weather Watch | MLB | Lake, Orange, Osceola, Seminole, Volusia | 13 hr |
Nearby
Wind Chill Advisories in Florida, 2012Every wind chill advisory in 2012
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.