Alert archive / Florida / Freeze Warnings in 2012
Freeze Warning 6, NWS Melbourne, FL
NWS Melbourne, FL issued this freeze warning at Dec 21, 2012, 2:08 PM EST for Lake County, Florida. It took effect at Dec 22, 2012, 1:00 AM EST. It was in force for 6 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
- Dec 21, 2012, 2:08 PM EST (19:08 UTC)
- In effect from
- Dec 22, 2012, 1:00 AM EST
- Expired
- Dec 22, 2012, 7:00 AM EST
- In force
- 6 hr
- Issued by
- NWS Melbourne, FL
County Lake County, FL
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.1 hours before the alert went out and 123 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1790 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -63 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
215 WWUS72 KMLB 211908 NPWMLB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 208 PM EST FRI DEC 21 2012 FLZ044-144-221200- /O.NEW.KMLB.FZ.W.0006.121222T0600Z-121222T1200Z/ /O.CON.KMLB.LW.Y.0028.000000T0000Z-121221T2300Z/ NORTHERN LAKE-SOUTHERN LAKE- INCLUDING THE CITIES OF...LEESBURG...CLERMONT 208 PM EST FRI DEC 21 2012 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 7 AM EST SATURDAY... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 1 AM TO 7 AM EST SATURDAY. * WINDS...NORTHWEST WINDS AROUND 20 MPH WITH GUSTS NEAR 30 MPH CAN BE EXPECTED UNTIL DUSK. * TEMPERATURE...VERY COLD AND DRY AIR FUNNELLING SOUTH INTO THE AREA WILL PRODUCE READINGS IN THE LOWER 30S BY DAYBREAK SATURDAY MORNING. SHELTERED LOCATIONS AND TRADITIONALLY COLDER SPOTS WILL LIKELY SEE READINGS JUST BELOW FREEZING FOR A BRIEF PERIOD EARLY SATURDAY. * IMPACTS...GUSTY WINDS AND CHOPPY WAVES WILL CREATE HAZARDOUS CONDITIONS FOR SMALL BOATS ON LARGE OR EXPOSED BODIES OF WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ FLZ041-045>047-053-054-058-059-064-141-147-212300- /O.CON.KMLB.LW.Y.0028.000000T0000Z-121221T2300Z/ INLAND VOLUSIA-ORANGE-SEMINOLE-SOUTHERN BREVARD-OSCEOLA- INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- NORTHERN BREVARD- INCLUDING THE CITIES OF...DE LAND...ORLANDO...SANFORD... MELBOURNE...PALM BAY...KISSIMMEE...ST CLOUD...VERO BEACH... OKEECHOBEE...FORT PIERCE...HOBE SOUND...DAYTONA BEACH... TITUSVILLE 208 PM EST FRI DEC 21 2012 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... * WINDS...NORTHWEST WINDS 20 MPH WITH GUSTS BETWEEN NEAR 30 MPH WILL OCCUR THROUGH DUSK. * IMPACTS...GUSTY WINDS AND CHOPPY WAVES WILL CREATE HAZARDOUS CONDITIONS FOR SMALL BOATS ON LARGE OR EXPOSED BODIES OF WATER...INCLUDING THE INTRACOASTAL WATERWAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$ JP
2 follow-up statements
741 WWUS72 KMLB 220044 NPWMLB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 744 PM EST FRI DEC 21 2012 FLZ044-144-221200- /O.CON.KMLB.FZ.W.0006.121222T0600Z-121222T1200Z/ NORTHERN LAKE-SOUTHERN LAKE- INCLUDING THE CITIES OF...LEESBURG...CLERMONT 744 PM EST FRI DEC 21 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 7 AM EST SATURDAY... * TEMPERATURE...VERY COLD AND DRY AIR FUNNELLING SOUTH INTO THE AREA WILL PRODUCE READINGS IN THE LOWER 30S BY DAYBREAK SATURDAY MORNING. SHELTERED LOCATIONS AND TRADITIONALLY COLDER SPOTS WILL LIKELY SEE READINGS JUST BELOW FREEZING FOR A BRIEF PERIOD EARLY SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
738 WWUS72 KMLB 220851 NPWMLB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 351 AM EST SAT DEC 22 2012 FLZ044-144-222100- /O.NEW.KMLB.FZ.A.0004.121223T0800Z-121223T1300Z/ /O.CON.KMLB.FZ.W.0006.000000T0000Z-121222T1200Z/ NORTHERN LAKE-SOUTHERN LAKE- INCLUDING THE CITIES OF...LEESBURG...CLERMONT 351 AM EST SAT DEC 22 2012 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING. * TEMPERATURE...COLD AND DRY AIR FUNNELING SOUTH INTO THE AREA WILL PRODUCE TEMPERATURES AROUND FREEZING OVER A FEW WIND SHELTERED LOCATIONS THIS MORNING. LIGHTER WINDS AND CLEAR SKIES WILL CREATE A GREATER POTENTIAL FOR MORE WIDESPREAD FREEZING TEMPERATURES FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. * IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT INDOORS IN ADVANCE OF FREEZING TEMPERATURES. PETS SHOULD ALSO BE BROUGHT INDOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ FLZ041-058-222100- /O.NEW.KMLB.FZ.A.0004.121223T0800Z-121223T1300Z/ INLAND VOLUSIA-OKEECHOBEE- INCLUDING THE CITIES OF...DE LAND...OKEECHOBEE 351 AM EST SAT DEC 22 2012 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING. * TEMPERATURE...LIGHT WINDS AND CLEAR SKIES WILL CREATE EVEN COLDER CONDITIONS TONIGHT WITH THE POTENTIAL FOR FREEZING TEMPERATURES FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. * IMPACTS...COLD SENSITIVE PLANTS SHOULD BE COVERED OR BROUGHT INDOORS IN ADVANCE OF FREEZING TEMPERATURES. PETS SHOULD ALSO BE BROUGHT INDOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ WEITLICH
What forecasters said that day
The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Melbourne, FL wrote its last area forecast discussion before this freeze warning went out at Dec 21, 9:06 AM EST, 5 hours 2 minutes earlier.
Area forecast discussion, Dec 21, 9:06 AM EST, 5 hours 2 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
906 AM EST FRI DEC 21 2012
.DISCUSSION...
...BRISK NORTHWEST WINDS WILL USHER IN A MUCH DRIER AND COLDER
AIRMASS TODAY INTO TONIGHT...
LTST VERTICAL SCANNING FROM THE 915 MHZ NETWORK @XMR SHOWS 30 KT
WINDS IN THE LOWEST (NEAR SURFACE) GATE RANGING TO 40 KTS NEAR 3K
FT. SFC GUSTS WILL EXCEED 30MPH AT TIMES OVER THE AREA WITH NEAR
ADVISORY CONDITIONS FOR A TIME TODAY. UPSTREAM DEWPOINTS OVER SOUTH
ALABAMA AND PANHANDLE AROUND THE LOWER 20S ATTM AND THIS AIRMASS WL
USHER SWD INTO THE AREA DURING THE DAY. SOME AREAS IN THE NORTH WILL
LIKELY REMAIN IN THE 50S ALL DAY. COOP MOS GUIDANCE IS INDICATING
SUB FREEZING TEMPS IN SOME SPOTS...PRIMARILY WEST OF I-4 AND WL
AWAIT 12Z PKG TO ASSESS POTENTIAL FOR PSBL FREEZE BY 230 PM.
OVERNIGHT DEWPOINTS PROJECTED TO BE NEAR MID 20S WITH COT'D
OVERNIGHT MIXING OF LL EXPECTED GENERALLY. SHOULD LOW SPOTS DECOUPLE
FOR A ONE TO TWO HOUR PERIOD AND A FREEZE WOULD CERTAINLY BE
POSSIBLE IN THOSE LOCATIONS.
_________________
PREVIOUS DISC...NORTHWEST WINDS WILL DECREASE TOWARD SUNSET BUT
STILL REMAIN ELEVATED UP TO AROUND 10 MPH INLAND TO 10 TO 15 MPH
ALONG THE COAST AS STRONG CAA CONTINUES. MOS GUIDANCE CONTINUES TO
APPEAR TOO LOW WITH TEMPS WHICH IS NOT UNUSUAL FOR THESE ADVECTIVE
EVENTS. WHILE ERRING ON THE SIDE OF CAUTION...WENT ON AVERAGE ABOUT
3-4 DEGREES ABOVE MAV GUIDANCE FOR LOWS TONIGHT. THIS PUTS VALUES
AROUND 10 TO 15 DEGREES BELOW NORMAL IN THE MID/UPPER 30S OVER MUCH
OF THE AREA...EXCEPT LOW 40S ALONG THE BARRIER ISLANDS AND IMMEDIATE
COAST OF ST. LUCIE/MARTIN COUNTIES. STILL...WINDS WILL MAKE IT FEEL
MUCH COLDER IN THE UPPER 20S TO LOW 30S AFTER MIDNIGHT TONIGHT
THROUGH EARLY SATURDAY MORNING. WILL GO AHEAD AND ISSUE A WIND CHILL
ADVISORY ACROSS THE AREA WITH THIS FORECAST PACKAGE SINCE IT LOOKS
QUITE CERTAIN THESE CONDS WILL OCCUR.
DKW
&&
.AVIATION...WITH SKC...ONLY CONCERN WL BE SFC WND GUSTS IN NORTHWEST
WINDS 20-24KT GUSTING TO 30KT THROUGH AROUND 23Z.
&&
VERY HAZARDOUS BOATING CONDITIONS OVER THE WATERS TODAY AND TONIGHT
AS STRONG NORTHWEST WINDS STEEPEN SEAS UP TO 8-10 FEET AND HIGHER IN
THE GULF STREAM. A GALE WARNING CONTINUES FOR OFFSHORE VOLUSIA
COUNTY THROUGH LATE THIS MORNING WITH A SMALL CRAFT ADVISORY
ELSEWHERE. THE GALE WARNING WL LIKELY BE DISCONTINUED AT 10 AM.
&&
.FIRE WEATHER...VERY HIGH FIRE WEATHER HAZARD WITH COMBINATION OF
BRISK NORTHWEST WINDS AND A MUCH DRIER AIRMASS. A RED FLAG WARNING
CONTINUES OVER ALL OF EAST CENTRAL FLORIDA THROUGH 7 PM.
&&
.MLB WATCHES/WARNINGS/ADVISORIES...
FL...LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR COASTAL
VOLUSIA-INDIAN RIVER-INLAND VOLUSIA-MARTIN-NORTHERN BREVARD-
NORTHERN LAKE-OKEECHOBEE-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN
BREVARD-SOUTHERN LAKE-ST. LUCIE.
RED FLAG WARNING FROM 11 AM THIS MORNING TO 7 PM EST THIS
EVENING FOR COASTAL VOLUSIA-INDIAN RIVER-INLAND VOLUSIA-
MARTIN-NORTHERN BREVARD-NORTHERN LAKE-OKEECHOBEE-ORANGE-
OSCEOLA-SEMINOLE-SOUTHERN BREVARD-SOUTHERN LAKE-ST. LUCIE.
WIND CHILL ADVISORY FROM 1 AM TO 9 AM EST SATURDAY FOR COASTAL
VOLUSIA-INDIAN RIVER-INLAND VOLUSIA-MARTIN-NORTHERN BREVARD-
NORTHERN LAKE-OKEECHOBEE-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN
BREVARD-SOUTHERN LAKE-ST. LUCIE.
AM...SMALL CRAFT ADVISORY UNTIL 1 AM EST SUNDAY FOR COASTAL WATERS
FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM-
COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20
NM-COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO
SEBASTIAN INLET OUT 20 NM-WATERS FROM SEBASTIAN INLET TO
JUPITER INLET 20 TO 60 NM OFFSHORE-WATERS FROM VOLUSIA
BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO 60 NM OFFSHORE.
SMALL CRAFT ADVISORY FROM 10 AM THIS MORNING TO 1 AM EST SUNDAY
FOR WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY
LINE 20 TO 60 NM OFFSHORE.
GALE WARNING UNTIL 10 AM EST THIS MORNING FOR WATERS FROM
FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO 60 NM
OFFSHORE.
&&
JP/ABHazardous weather outlook, Dec 21, 10:32 AM EST, 3 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1032 AM EST FRI DEC 21 2012 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-212200- COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM- COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET OUT 20 NM- COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM- WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO 60 NM OFFSHORE- WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO 60 NM OFFSHORE- WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE- INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 1032 AM EST FRI DEC 21 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .HIGH WIND IMPACT... NORTHWEST WINDS WILL INCREASE TODAY UP TO AROUND 20 MPH WITH GUSTS AS HIGH AS 30 TO 35 MPH. THESE WINDS WILL CREATE HAZARDOUS BOATING CONDITIONS FOR SMALL BOATS OVER AREA LAKES AND THE INTRACOASTAL WATERWAY. A LAKE WIND ADVISORY IS IN EFFECT THROUGH LATE THIS AFTERNOON. .EXCESSIVE COLD IMPACT... TEMPERATURES ARE EXPECTED TO DROP INTO THE MID 30S ACROSS MOST OF THE AREA TONIGHT...WHICH IS 5 TO 10 DEGREES COLDER THAN WE'VE EXPERIENCED SO FAR THIS COOL SEASON. IN ADDITION...ELEVATED NORTHWEST WINDS WILL CONTINUE OVERNIGHT UP TO 10 TO 15 MPH AND PRODUCE WIND CHILL VALUES IN THE UPPER 20S TO LOW 30S. WIND CHILL IS THE TEMPERATURE THE HUMAN BODY FEELS IF EXPOSED TO THE COMBINATION OF COLD TEMPERATURES AND WIND BUT IT DOES NOT AFFECT PLANTS. A WIND CHILL ADVISORY IS IN EFFECT FOR LATE TONIGHT INTO EARLY SATURDAY MORNING. .RIP CURRENT IMPACT... BRISK NORTHWEST WINDS WILL PRODUCE A STRONG SOUTHWARD MOVING LONGSHORE CURRENT WHICH CAN KNOCK SWIMMERS OFF SANDBARS INTO DEEPER WATER. AVOID SWIMMING NEAR PIERS AND JETTIES WHERE RIP CURRENTS MAY BE STRONG AND ALWAYS SWIM NEAR A LIFEGUARD. .WIND AND SEA IMPACT... VERY HAZARDOUS BOATING CONDITIONS WILL OCCUR OVER THE COASTAL WATERS TODAY AND TONIGHT AS STRONG NORTHWEST WINDS BUILD SEAS UP TO 8 TO 10 FEET. A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE ATLANTIC WATERS. .FIRE WEATHER IMPACT... BRISK NORTHWEST WINDS WILL COMBINE WITH A LONG DURATION OF VERY LOW RELATIVE HUMIDITY VALUES TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS OVER THE AREA. ANY OUTDOOR FIRE WILL SPREAD RAPIDLY. A RED FLAG WARNING IS IN EFFECT ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NORTHERLY WINDS WILL BEGIN TO DECREASE GRADUALLY INTO THE WEEKEND AS HIGH PRESSURE BUILDS TOWARD THE AREA. HOWEVER HAZARDOUS MARINE CONDITIONS WILL CONTINUE THROUGH AT LEAST SATURDAY NIGHT. LIGHTER WINDS AND CLEAR SKIES TOMORROW NIGHT WILL MAKE FOR ANOTHER CHILLY NIGHT WITH NEAR FREEZING TEMPERATURES AND PATCHY FROST OVER NORMALLY COLDER LOCATIONS ACROSS THE INTERIOR. A DRY AIRMASS WILL LINGER OVER THE AREA INTO THE WEEKEND WHICH WILL PRODUCE CRITICALLY LOW RELATIVE HUMIDITY VALUES ACROSS THE AREA BOTH SATURDAY AND SUNDAY AFTERNOONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. WEITLICH/BOWEN
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, 4:11 AM EST | Wind Chill Advisory | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 29 hr |
| Dec 21, 2:49 PM EST | Fire Weather Watch | MLB | Lake, Orange, Osceola, Seminole, Volusia | 13 hr |
Nearby
Freeze Warnings in Florida, 2012Every freeze warning 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.