Alert archive / Georgia / Frost Advisories in 2008

Frost Advisory 4, NWS Tallahassee, FL

November 16, 200816 counties in Florida; 26 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this frost advisory at Nov 16, 2008, 1:52 PM CST for 16 counties in Florida; 26 counties in Georgia; 5 counties in Alabama. It took effect at Nov 17, 2008, 3:00 AM CST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Nov 16, 2008, 1:52 PM CST (19:52 UTC)
In effect from: Nov 17, 2008, 3:00 AM CST
Expired: Nov 17, 2008, 7:00 AM CST
In force: 4 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 19:52 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.9 hours before the alert went out and 265 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 802 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: 91 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 Nov 16, 1:10 PM CST, 42 minutes earlier.

Area forecast discussion, Nov 16, 1:10 PM CST, 42 minutes before

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Hazardous weather outlook, Nov 16, 4:34 AM CST, 9 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
534 AM EST SUN NOV 16 2008

ALZ065>069-FLZ007>019-026>029-034-GAZ120>131-142>148-155>161-
GMZ730-750-755-765-770-775-170900-
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-
534 AM EST SUN NOV 16 2008 /434 AM CST SUN NOV 16 2008/

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

.DAY ONE...TODAY AND TONIGHT...

ADVISORY LEVEL WINDS AND SEAS WILL CONTINUE THROUGH THE MORNING
HOURS BEFORE APPROACHING HIGH PRESSURE BEGINS TO RELAX THE
GRADIENT. WINDS AND SEAS ARE ANTICIPATED TO FALL BELOW ADVISORY
LEVELS BY THE EARLY AFTERNOON ACROSS THE NEAR SHORE MARINE ZONES
AND BY EARLY THIS EVENING ACROSS THE OFFSHORE ZONES.

A COLD AIRMASS AND GOOD RADIATIONAL COOLING CONDITIONS WILL
COMBINE TO PRODUCE NEAR FREEZING TEMPERATURES FOR LOCATIONS AWAY
FROM URBAN CENTERS AND AWAY FROM THE IMMEDIATE COAST TONIGHT INTO
EARLY MONDAY MORNING. LOCATIONS MOST LIKELY TO SEE TEMPERATURES
REACH FREEZING LATE TONIGHT WILL BE ALONG AND SOUTH OF THE I-10
CORRIDOR WHERE SANDIER SOILS WILL ENHANCE THE COOLING. THE COLD
TEMPERATURES AND LIGHT WINDS ARE EXPECTED TO RESULT IN THE
DEVELOPMENT OF PATCHY FROST DURING THE LATE NIGHT HOURS. PERSONS
WITH SENSITIVE OUTDOOR VEGETATION SHOULD CONTINUE TO MONITOR
FORECAST UPDATES TODAY IN REGARDS TO THIS POTENTIAL FROST EVENT
IN CASE ADDITIONAL PROTECTIVE MEASURES BECOME NECESSARY.

A VERY DRY AIRMASS IN PLACE THIS AFTERNOON WILL COMBINE WITH
TEMPERATURES IN THE UPPER 50S AND LOWER 60S TO PRODUCE LOW
RELATIVE HUMIDITY. THESE LOW VALUES OF RELATIVE HUMIDITY WILL
ENHANCE THE DEVELOPMENT AND SPREAD OF ANY WILDFIRES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

ANOTHER COLD FRONT WILL CROSS THE FORECAST AREA MONDAY NIGHT AND
DELIVER YET ANOTHER COLD POLAR AIRMASS TO THE REGION FOR TUESDAY
AND WEDNESDAY. AS HIGH PRESSURE SETTLES OVERHEAD TUESDAY NIGHT IT
WILL CREATE VERY GOOD RADIATIONAL COOLING CONDITIONS. THERE IS NOW
INCREASING CONFIDENCE IN THE POTENTIAL FOR A SIGNIFICANT AND
WIDESPREAD FREEZE TUESDAY NIGHT INTO EARLY WEDNESDAY AWAY FROM THE
IMMEDIATE COAST AND AWAY FROM URBAN CENTERS. THOSE WITH SENSITIVE
OUTDOOR VEGETATION SHOULD CONTINUE TO MONITOR FORECASTS OVER THE
NEXT SEVERAL DAYS IN REGARDS TO THIS POTENTIAL FREEZE EVENT.

DRY CONDITIONS WILL LINGER THROUGH MUCH OF THE UPCOMING WEEK
RESULTING IN LOW RELATIVE HUMIDITY VALUES EACH AFTERNOON.

.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.

14-MROCZKA

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 16, 1:36 PM CST	River Flood Warning	TAE	Gadsden, Leon	8 days
Nov 16, 1:38 PM CST	Fire Weather Watch	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	37 hr

Nearby

Frost Advisories in Georgia, 2008 Frost Advisories in Florida, 2008 Frost Advisories in Alabama, 2008 Every 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.