Alert archive / Georgia / Tornado Watches in 2001

Tornado Watch 62

March 12, 20014 counties in Alabama; 20 counties in Florida; 57 counties in Georgia

The Storm Prediction Center issued this tornado watch at Mar 12, 2001, 1:45 PM CST for 4 counties in Alabama; 20 counties in Florida; 57 counties in Georgia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 12, 2001, 1:45 PM CST (19:45 UTC)
Expired
Mar 12, 2001, 8:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 81 counties

Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Baker County, FL, Bay County, FL, Calhoun County, FL, Columbia County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Calhoun County, GA, Charlton County, GA, Chatham County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Evans County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pierce County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Tattnall County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA

Warnings issued inside it

13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 12, 1:58 PM CSTTornado WarningTAECoffee, Dale32 min
Mar 12, 2:26 PM CSTSevere Thunderstorm WarningTAEDale, Henry, Houston49 min
Mar 12, 2:26 PM CSTSevere Thunderstorm WarningTAEGeneva49 min
Mar 12, 3:32 PM CSTTornado WarningTAEWalton28 min
Mar 12, 3:36 PM CSTSevere Thunderstorm WarningTAEJackson24 min
Mar 12, 3:51 PM CSTTornado WarningTAEHouston24 min
Mar 12, 4:08 PM CSTSevere Thunderstorm WarningTAEBay52 min
Mar 12, 4:14 PM CSTTornado WarningTAEDecatur, Miller, Seminole31 min
Mar 12, 4:29 PM CSTTornado WarningTAEBay31 min
Mar 12, 5:03 PM CSTSevere Thunderstorm WarningTAECalhoun27 min
Mar 12, 5:20 PM CSTTornado WarningTAECalhoun25 min
Mar 12, 6:37 PM CSTTornado WarningTAELiberty, Wakulla38 min
Mar 12, 7:17 PM CSTTornado WarningTAELeon, Wakulla28 min

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.8 hours before the alert went out and 41 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 12:00Z on 2001-03-12Temperature 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 12:00Z on 2001-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 square meters per square second.1939587897Sfc1 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
946 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS9 KMKC 122030
SEL2  

SEL2  
MKC WW 122021
ALZ000-FLZ000-GAZ000-CWZ000-130200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 62
STORM PREDICTION CENTER NORMAN OK
321 PM EST MON MAR 12 2001

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   EXTREME SOUTHEAST ALABAMA                            
   NORTHERN FLORIDA                            
   SOUTHERN GEORGIA                            
   COASTAL WATERS                     

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 900
PM EST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 130 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES SOUTH SOUTHWEST OF APALACHICOLA FLORIDA TO
70 MILES NORTH NORTHWEST OF WAYCROSS GEORGIA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 61.  WATCH NUMBER 61 WILL NOT BE IN EFFECT AFTER 345 PM EST. 

DISCUSSION...LINE OF STRONG/SEVERE STORMS CONTINUE TO BOW EWD
ACROSS SERN AL/NWRN FL.  STRONGEST STORMS HAVE BEEN OCCURRING ALONG
INTERSECTION OF SQUALL LINE AND WARM FRONT THAT EXTENDS EWD ACROSS
EXTREME SRN GA.  VAD WINDS EXHIBIT EXTREME VALUES OF LOW LEVEL
SHEAR/HELICITY AS WINDS VEER AND INCREASE TO 50-60 KT WITHIN 1-2 KM
OF THE GROUND.  OTHER CELLS DEVELOPING AHEAD OF THE LINE OVER NRN
FL MAY ALSO INTENSIFY NEXT SEVERAL HOURS...WITH THREAT FOR DAMAGING
WIND GUSTS AND POSSIBLE TORNADOES.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. 
MEAN STORM MOTION VECTOR 24045.


...WEISS

;293,0871 321,0850 321,0803 293,0825;

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 6:00 AM CSTSevere Thunderstorm WatchSPCBaldwin, Choctaw, Clarke, Mobile, Washington5 hr
Mar 12, 9:00 AM CSTSevere Thunderstorm WatchSPCBibb, Dallas, Fayette, Greene, Hale, Jefferson and 7 more6 hr
Mar 12, 10:00 AM CSTTornado WatchSPCButler, Clarke, Conecuh, Mobile, Monroe, Washington5 hr
Mar 12, 11:30 AM CSTTornado WatchSPCBaldwin, Barbour, Bullock, Butler, Clarke, Coffee and 18 more4 hr

Nearby

Tornado Watches in Georgia, 2001Tornado Watches in Florida, 2001Tornado Watches in Alabama, 2001Every tornado watch in 2001

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.