Alert archive / Alabama / Freeze Warnings in 2007

Freeze Warning 2, NWS Mobile, AL

February 15, 200710 counties in Alabama; 5 counties in Mississippi

NWS Mobile, AL issued this freeze warning at Feb 15, 2007, 2:57 PM CST for 10 counties in Alabama; 5 counties in Mississippi. It took effect at Feb 16, 2007, 2:00 AM CST. 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
Feb 15, 2007, 2:57 PM CST (20:57 UTC)
In effect from
Feb 16, 2007, 2:00 AM CST
Expired
Feb 16, 2007, 8:00 AM CST
In force
6 hr
Issued by
NWS Mobile, AL

Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 96 km from the middle of the area, began a volume at 21:03 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.0 hours before the alert went out and 162 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, Eglin AFB/Valpar, FL at 12:00Z on 2007-02-15Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 2007-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -77 square meters per square second.1939587897117136156175Sfc1 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
1203 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
-77 m²/s²
0-3 km storm-relative helicity
140 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.

000 
WWUS74 KMOB 152057
NPWMOB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
257 PM CST THU FEB 15 2007

...A HARD FREEZE WARNING IS IN EFFECT TONIGHT FOR INTERIOR SOUTHEAST
MISSISSIPPI...AND SOUTHWEST ALABAMA AND THE NORTHWEST FLORIDA
PANHANDLE EXCEPT FOR COASTAL SECTIONS...

.VERY COLD HIGH PRESSURE WILL BUILD INTO THE NORTHERN GULF TONIGHT
LEAVING THE REGION UNDER THE INFLUENCE OF AN ARCTIC AIR MASS.
TEMPERATURES WILL DROP BELOW FREEZING EARLY THIS EVENING THEN DROP
INTO THE LOWER TO MID TWENTIES OVERNIGHT RESULTING IN A HARD FREEZE.
TEMPERATURES WILL RISE ABOVE FREEZING BY MID MORNING ON FRIDAY.

ALZ051>062-FLZ001-003-005-MSZ067-075-076-078-079-160500-
/O.NEW.KMOB.FZ.W.0002.070216T0800Z-070216T1400Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-INLAND ESCAMBIA-
INLAND SANTA ROSA-INLAND OKALOOSA-WAYNE-PERRY-GREENE-STONE-GEORGE-
INCLUDING THE CITIES OF...BUTLER...LISMAN...SILAS...CHATOM...
MILLRY...JACKSON...THOMASVILLE...GROVE HILL...CAMDEN...
PINE HILL...HOMEWOOD...MONROEVILLE...EVERGREEN...GREENVILLE...
LUVERNE...BRANTLEY...ATMORE...BREWTON...EAST BREWTON...
ANDALUSIA...OPP...PRICHARD...SARALAND...BAY MINETTE...CENTURY...
FLOMATON...MOLINO...JAY...CRESTVIEW...WAYNESBORO...RICHTON...
BEAUMONT...NEW AUGUSTA...LEAKESVILLE...MCLAIN...WIGGINS...
LUCEDALE
257 PM CST THU FEB 15 2007

...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A HARD FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 AM CST FRIDAY. 

A HARD FREEZE WARNING MEANS TEMPERATURES BELOW 26 DEGREES FOR MORE
THAN FIVE HOURS ARE IMMINENT OR HIGHLY LIKELY. MAKE SURE ALL
PRECAUTIONS ARE TAKEN TODAY FOR THE ELDERLY...SENSITIVE VEGETATION
AND PETS. OPEN THE FAUCET SLIGHTLY FOR A SMALL STREAM OF WATER
OVERNIGHT IF YOU HAVE ANY EXTERIOR OPEN AIR PIPING.

$$
1 follow-up statement
000 
WWUS74 KMOB 160449
NPWMOB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
1045 PM CST THU FEB 15 2007

...A HARD FREEZE WARNING IS IN EFFECT TONIGHT FOR INTERIOR SOUTHEAST
MISSISSIPPI...AND SOUTHWEST ALABAMA AND THE NORTHWEST FLORIDA
PANHANDLE EXCEPT FOR COASTAL SECTIONS...

.VERY COLD HIGH PRESSURE WILL BUILD INTO THE NORTHERN GULF TONIGHT
LEAVING THE REGION UNDER THE INFLUENCE OF AN ARCTIC AIR MASS.
TEMPERATURES WILL DROP BELOW FREEZING EARLY THIS EVENING THEN DROP
INTO THE LOWER TO MID TWENTIES OVERNIGHT RESULTING IN A HARD FREEZE.
TEMPERATURES WILL RISE ABOVE FREEZING BY MID MORNING ON FRIDAY.

ALZ051>062-FLZ001-003-005-MSZ067-075-076-078-079-161300-
/O.NEW.KMOB.FZ.W.0002.070216T0800Z-070216T1400Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-INLAND ESCAMBIA-
INLAND SANTA ROSA-INLAND OKALOOSA-WAYNE-PERRY-GREENE-STONE-GEORGE-
INCLUDING THE CITIES OF...BUTLER...LISMAN...SILAS...CHATOM...
MILLRY...JACKSON...THOMASVILLE...GROVE HILL...CAMDEN...
PINE HILL...HOMEWOOD...MONROEVILLE...EVERGREEN...GREENVILLE...
LUVERNE...BRANTLEY...ATMORE...BREWTON...EAST BREWTON...
ANDALUSIA...OPP...PRICHARD...SARALAND...BAY MINETTE...CENTURY...
FLOMATON...MOLINO...JAY...CRESTVIEW...WAYNESBORO...RICHTON...
BEAUMONT...NEW AUGUSTA...LEAKESVILLE...MCLAIN...WIGGINS...
LUCEDALE
1045 PM CST THU FEB 15 2007

...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A HARD FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 AM CST FRIDAY. 

THIS WARNING IS IN EFFECT FOR AREAS NORTH OF INTERSTATE 10. AREAS 
NORTH OF INTERSTATE 10 TO ALONG AND SOUTH OF A JANICE...MISSISSIPPI 
TO GREEN BAY...ALABAMA LINE WILL FALL INTO THE 23 TO 25 DEGREE 
RANGE...WITH AREAS NORTH EXPECTED TO FALL IN THE LOWER 20S.

A HARD FREEZE WARNING MEANS TEMPERATURES BELOW 26 DEGREES FOR MORE
THAN FIVE HOURS ARE IMMINENT OR HIGHLY LIKELY. MAKE SURE ALL
PRECAUTIONS ARE TAKEN TODAY FOR THE ELDERLY...SENSITIVE VEGETATION
AND PETS. OPEN THE FAUCET SLIGHTLY FOR A SMALL STREAM OF WATER
OVERNIGHT IF YOU HAVE ANY EXTERIOR OPEN AIR PIPING.

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 2:50 PM CSTFire Weather WatchMOBWalton22 hr
Feb 15, 2:50 PM CSTRed Flag WarningMOBWalton27 hr

Nearby

Freeze Warnings in Alabama, 2007Freeze Warnings in Mississippi, 2007Freeze Warnings in Florida, 2007Every freeze warning in 2007

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.