Alert archive / Alabama / Tornado Watches in 2000

Tornado Watch 793

November 9, 200014 counties in Alabama; 12 counties in Florida; 12 counties in Georgia

The Storm Prediction Center issued this tornado watch at Nov 9, 2000, 4:30 AM CST for 14 counties in Alabama; 12 counties in Florida; 12 counties in Georgia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 9, 2000, 4:30 AM CST (10:30 UTC)
Expired: Nov 9, 2000, 10:00 AM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 38 counties

Barbour County, AL, Butler County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Monroe County, AL, Pike County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Clay County, GA, Decatur County, GA, Early County, GA, Miller County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Stewart County, GA, Terrell County, GA, Webster County, GA

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Nov 9, 4:33 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	42 min
Nov 9, 6:26 AM CST	Tornado Warning	TAE	Geneva	34 min
Nov 9, 6:45 AM CST	Tornado Warning	TAE	Dale, Houston	45 min
Nov 9, 7:03 AM CST	Tornado Warning	TAE	Houston	42 min
Nov 9, 9:46 AM CST	Severe Thunderstorm Warning	TAE	Dale, Henry, Houston	44 min

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 00:00Z, 10.5 hours before the alert went out and 18 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: 1397 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 483 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 320 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 12.8

Open this sounding in Storm Lab

The text

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

872 
WWUS9 KMKC 091031
SEL3  

SEL3  
WWUS9 KMKC 091024
MKC WW 091024
ALZ000-FLZ000-GAZ000-CWZ000-091600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 793
STORM PREDICTION CENTER NORMAN OK
524 AM EST THU NOV 9 2000

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

   SOUTHEASTERN ALABAMA                            
   MUCH OF THE FLORIDA PANHANDLE                            
   SOUTHWEST GEORGIA                            
   COASTAL WATERS                     

EFFECTIVE THIS THURSDAY MORNING FROM 530 AM UNTIL 1100 AM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO
70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 55 MILES SOUTHWEST OF PANAMA CITY FLORIDA TO 20
MILES NORTHEAST OF TROY ALABAMA.

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 791.  WATCH NUMBER 791 WILL NOT BE IN EFFECT AFTER 530 AM
EST.  CONTINUE...WW 790...WW 792...

DISCUSSION...BANDS AND CLUSTERS OF INTENSE CONVECTION CONTINUE OVER
PARTS OF SOUTHERN AL AND THE WESTERN FL PANHANDLE.  THESE STORMS
ARE EXPECTED TO SPREAD EASTWARD DURING THE NEXT FEW HOURS AS UPPER
TROUGH ROTATES PAST REGION.  LOCAL SHEAR PROFILES SUGGEST THAT THE
POTENTIAL FOR SUPERCELLS AND TORNADOES WILL PERSIST THROUGH THE
MORNING HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 23035.

...HART

293,0874 320,0871 320,0841 293,0844

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 8, 8:00 PM CST	Tornado Watch	SPC	Choctaw, Colbert, Cullman, Fayette, Franklin, Greene and 15 more	6 hr
Nov 8, 11:30 PM CST	Tornado Watch	SPC	Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 21 more	6 hr
Nov 9, 12:00 AM CST	Tornado Watch	SPC	Autauga, Baldwin, Butler, Choctaw, Clarke, Conecuh and 11 more	5 hr
Nov 9, 3:15 AM CST	Tornado Watch	SPC	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 21 more	5 hr
Nov 9, 10:00 AM CST	Tornado Watch	SPC	Henry, Houston	5 hr

Nearby

Tornado Watches in Alabama, 2000 Tornado Watches in Florida, 2000 Tornado Watches in Georgia, 2000 Every tornado watch in 2000

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.