Alert archive / Alabama / Tornado Watches in 1997

Tornado Watch 784

November 1, 199737 counties in Alabama; 7 counties in Florida

The Storm Prediction Center issued this tornado watch at Nov 1, 1997, 1:15 PM CST for 37 counties in Alabama; 7 counties in Florida. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Nov 1, 1997, 1:15 PM CST (19:15 UTC)
Expired
Nov 1, 1997, 7:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 44 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Chambers County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Greene County, AL, Hale County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pike County, AL, Russell County, AL, Sumter County, AL, Tallapoosa County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL

The radar

The Mobile radar (KMOB), 127 km from the middle of the area, began a volume at 18:58 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Nov 1, 1:16 PM CSTSevere Thunderstorm WarningMOBCovington59 min
Nov 1, 1:22 PM CSTSevere Thunderstorm WarningBMXHale63 min
Nov 1, 1:36 PM CSTSevere Thunderstorm WarningTAEWalton54 min
Nov 1, 1:45 PM CSTSevere Thunderstorm WarningBMXPerry35 min
Nov 1, 2:03 PM CSTSevere Thunderstorm WarningBMXDallas32 min
Nov 1, 2:08 PM CSTSevere Thunderstorm WarningTAEHolmes, Washington62 min
Nov 1, 2:10 PM CSTTornado WarningMOBChoctaw65 min
Nov 1, 2:21 PM CSTSevere Thunderstorm WarningMOBButler54 min
Nov 1, 2:25 PM CSTSevere Thunderstorm WarningBMXPerry35 min
Nov 1, 2:30 PM CSTSevere Thunderstorm WarningBMXPike50 min
Nov 1, 2:36 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery49 min
Nov 1, 2:39 PM CSTSevere Thunderstorm WarningTAEJackson66 min
Nov 1, 2:42 PM CSTSevere Thunderstorm WarningMOBClarke, Washington2 hr
Nov 1, 2:42 PM CSTSevere Thunderstorm WarningMOBWilcox2 hr
Nov 1, 2:49 PM CSTTornado WarningBMXRussell51 min
Nov 1, 2:56 PM CSTTornado WarningMOBWashington64 min
Nov 1, 3:12 PM CSTSevere Thunderstorm WarningBMXMacon33 min
Nov 1, 3:14 PM CSTSevere Thunderstorm WarningMOBMonroe61 min
Nov 1, 3:15 PM CSTSevere Thunderstorm WarningBMXBarbour50 min
Nov 1, 3:27 PM CSTSevere Thunderstorm WarningBMXMontgomery, Pike48 min
Nov 1, 3:33 PM CSTSevere Thunderstorm WarningMOBCrenshaw27 min
Nov 1, 3:36 PM CSTSevere Thunderstorm WarningBMXLee49 min
Nov 1, 3:47 PM CSTSevere Thunderstorm WarningMOBMobile58 min
Nov 1, 3:47 PM CSTSevere Thunderstorm WarningMOBConecuh58 min
Nov 1, 3:53 PM CSTSevere Thunderstorm WarningBMXRussell47 min
Nov 1, 3:57 PM CSTSevere Thunderstorm WarningMOBEscambia63 min
Nov 1, 4:13 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery32 min
Nov 1, 4:21 PM CSTSevere Thunderstorm WarningBMXPike49 min
Nov 1, 5:24 PM CSTTornado WarningTAECalhoun, Jackson46 min
Nov 1, 6:09 PM CSTSevere Thunderstorm WarningTAEWashington36 min

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 7.3 hours before the alert went out and 107 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 1997-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1154 joules per kilogram.LCLLFCEL10008507005003002001001 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 1997-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.19395878Sfc1 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
1154 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

537 
WWUS9 KMKC 011842
SEL4  
MKC WW 011842
ALZ000-FLZ000-020100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 784
STORM PREDICTION CENTER NORMAN OK
1242 PM CST SAT NOV 1 1997

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

   CENTRAL AND SOUTHERN ALABAMA                            
   NORTHWEST FLORIDA                            
   AND ADJACENT COASTAL WATERS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 115 PM UNTIL 700
PM CST.

TORNADOES...HAIL TO 1 3/4 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES SOUTHEAST OF PENSACOLA FLORIDA TO 30 MILES
EAST NORTHEAST OF CENTREVILLE 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...  CONTINUE...WW 783...

DISCUSSION...STRONG LOCALLY SEVERE THUNDERSTORMS OVER MISSISSIPPI
ARE EXPECTED TO SPREAD EASTWARD INTO ALABAMA THIS AFTERNOON AHEAD
OF INTENSE UPPER LEVEL TROUGH MOVING TOWARD THE LOWER MISSISSIPPI
VALLEY.  AIR MASS OVER SOUTHERN ALABAMA HAS DESTABILIZED
SUBSTANTIALLY HAS WARM FRONT LIFTS NORTHWARD FROM THE GULF
COAST...WITH CAPE VALUES AROUND 2000 J/KG.  STORMS ARE EXPECTED TO
CONTINUE DEVELOPING INTO ALABAMA AND NORTHWEST FLORIDA AS LOW LEVEL
JET STRENGTHENS INTO THIS AREA.  THIS WILL ENHANCE VERTICAL SHEAR
AND INCREASE POTENTIAL FOR SUPERCELL DEVELOPMENT.

ADDITIONAL WATCHES...WE ARE MONITORING SOUTHERN LOUISIANA AND
SOUTHEAST MISSISSIPPI FOR POSSIBLE WATCH THIS AFTERNOON.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 3/4 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450.  MEAN STORM MOTION VECTOR 26040.


...WEISS

300,0882 325,0882 325,0850 300,0851

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 1, 3:30 PM CSTTornado WatchSPCHenry, Houston, Russell6 hr

Nearby

Tornado Watches in Alabama, 1997Tornado Watches in Florida, 1997Every tornado watch in 1997

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.