Alert archive / Georgia / Frost Advisories in 2008

Frost Advisory 1, NWS Tallahassee, FL

April 15, 200816 counties in Florida; 26 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this frost advisory at Apr 15, 2008, 3:56 AM CDT for 16 counties in Florida; 26 counties in Georgia; 5 counties in Alabama. It took effect at Apr 15, 2008, 2:39 PM CDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Apr 15, 2008, 3:56 AM CDT (08:56 UTC)
In effect from
Apr 15, 2008, 2:39 PM CDT
Expired
Apr 16, 2008, 8:00 AM CDT
In force
17 hr
Issued by
NWS Tallahassee, FL
All 47 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 66 km from the middle of the area, began a volume at 08:57 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 8.9 hours before the alert went out and 66 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, Tallahassee Rgnl, FL at 00:00Z on 2008-04-15Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2008-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 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
1874 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this frost advisory went out at Apr 15, 1:45 AM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, Apr 15, 1:45 AM CDT, 2 hours 11 minutes before
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Hazardous weather outlook, Apr 14, 4:50 AM CDT, 23 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
550 AM EDT MON APR 14 2008

ALZ065>069-FLZ007>019-026>029-034-GAZ120>131-142>148-155>161-
GMZ730-750-755-765-770-775-151000-
COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-COASTAL WALTON-
HOLMES-WASHINGTON-JACKSON-BAY-CALHOUN-GULF-FRANKLIN-GADSDEN-LEON-
JEFFERSON-MADISON-LIBERTY-WAKULLA-TAYLOR-LAFAYETTE-DIXIE-QUITMAN-
CLAY-RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-
IRWIN-EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-
DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM-
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM-
COASTAL WATERS FROM  OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM-
COASTAL WATERS FROM  SUWANNEE RIVER TO KEATON BEACH OUT 20 NM-
WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM-
WATERS FROM  SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM-
550 AM EDT MON APR 14 2008 /450 AM CDT MON APR 14 2008/

...LAKE WIND ADVISORY IN EFFECT FROM 10 AM EDT /9 AM CDT/ THIS
MORNING TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR SOUTHEAST
ALABAMA...SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE EASTERN
FLORIDA PANHANDLE AND BIG BEND FOR STRONG GUSTY WINDS...

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

...A RED FLAG WARNING IS NOW IN EFFECT FROM 2 PM EDT /1 PM CDT/
THIS AFTERNOON TO 7 PM EDT /6 PM CDT/ THIS EVENING FOR ALL OF THE
FLORIDA BIG BEND AND PANHANDLE DUE TO A COMBINATION OF RELATIVE
HUMIDITY BELOW 35 PERCENT AND 20-FOOT WINDS OF 15 MPH OR
GREATER...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA...
SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND
AND PANHANDLE...AND ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT...
BREEZY CONDITIONS TODAY WILL CAUSE HAZARDOUS CONDITIONS ON AREA
LAKES. A SMALL CRAFT ADVISORY IS ALSO IN EFFECT FOR THE LOCAL
GULF WATERS. IT WILL BE UNSEASONABLY COLD ACROSS THE REGION TODAY
AND TONIGHT WITH NEAR RECORD COLD TEMPERATURES BY TUESDAY MORNING
AT SOME LOCATIONS. THERE IS EXPECTED TO BE SUFFICIENT WIND AND
CLOUD COVER TONIGHT TO PREVENT THE FORMATION OF FROST. VERY DRY
AIR MOVING INTO THE REGION TODAY COMBINED WITH BREEZY CONDITIONS
WILL ENHANCE THE SPREAD OF ANY WILDFIRES...ESPECIALLY OVER NORTH
FLORIDA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
IT WILL BE A LITTLE WARMER ON TUESDAY BUT MAX TEMPERATURES WILL
STILL BE ABOUT 15 DEGREES BELOW NORMAL. WE DO EXPECT MORE SUNSHINE
AND LESS WIND ON TUESDAY SO IT WONT FEEL NEARLY AS COLD AS THE
CONDITIONS FELT ON MONDAY. WINDS AND SEAS OVER THE COASTAL WATERS
WILL CONTINUE TO BE ELEVATED TO ADVISORY LEVELS AT LEAST UNTIL
EARLY TUESDAY AFTERNOON. A DRY AIRMASS WILL REMAIN IN PLACE AND
THIS WILL ENHANCE THE SPREAD OF ANY WILDFIRES...ESPECIALLY
OVER NORTH FLORIDA. WINDS WILL DIMINISH TUESDAY NIGHT AND SKIES
SHOULD BE CLEAR ALLOWING TEMPERATURES TO DROP TO THE MID 30S OVER
MOST INLAND AREAS. IF THE WINDS DIMINISH AS EXPECTED AND THE
TEMPERATURES DROP INTO THE MID 30S...THERE WILL BE THE POTENTIAL
FOR THE DEVELOPMENT OF FROST ACROSS THE REGION FOR AREAS AWAY FROM
THE COAST AND OUTSIDE URBAN CENTERS. A FROST THIS LATE IN THE
SEASON WILL HARM SENSITIVE OUTDOOR PLANTS AND NEWLY PLANTED
GARDENS AND FARM FIELDS. PERSONS SHOULD BEGIN PREPARING PROTECTIVE
MEASURES TO LIMIT POTENTIAL DAMAGE TO THIS SENSITIVE VEGETATION.
ALSO...A FEW NEW RECORD LOW TEMPERATURES MAY BE ESTABLISHED
WEDNESDAY MORNING. A GRADUAL WARMING TREND WILL BEGIN ON
WEDNESDAY WITH TEMPERATURES RETURNING TO SEASONAL LEVELS BY THE
END OF THE WEEK. THE NEXT CHANCE FOR RAIN WILL BE SATURDAY AS A
WEAK COLD FRONT APPROACHES AND PASSES THROUGH THE TRI-STATE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA
OF INTEREST ON THE NATIONAL MAP.

22-BARRY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 4:21 AM CDTRed Flag WarningTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more40 hr
Apr 15, 1:51 PM CDTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more14 hr

Nearby

Frost Advisories in Georgia, 2008Frost Advisories in Florida, 2008Frost Advisories in Alabama, 2008Every frost advisory in 2008

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.