Alert archive / Alabama / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 82

April 8, 20024 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida

The Storm Prediction Center issued this severe thunderstorm watch at Apr 8, 2002, 6:00 PM CDT for 4 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Apr 8, 2002, 6:00 PM CDT (23:00 UTC)
Expired: Apr 8, 2002, 10:00 PM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 11.0 hours before the alert went out and 100 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: 709 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 315 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 
WWUS20 KWNS 082247
SEL2  
SPC WW 082243
ALZ000-FLZ000-CWZ000-090300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 82
STORM PREDICTION CENTER NORMAN OK
543 PM CDT MON APR 8 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   SOUTHERN ALABAMA                            
   EXTREME WESTERN FLORIDA PANHANDLE                       
   AND ADJACENT COASTAL WATERS                     

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 600 PM UNTIL 1000
PM CDT.

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

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 35 MILES SOUTH SOUTHWEST OF PENSACOLA
FLORIDA TO 60 MILES NORTHWEST OF CRESTVIEW FLORIDA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 81...

DISCUSSION...LINE OF STRONG/SEVERE STORMS CONTINUES TO TRACK
EASTWARD ACROSS MS/AL.  MOIST/UNSTABLE AIRMASS AHEAD OF LINE OVER
SOUTHERN AL/WESTERN FL PANHANDLE MAY MAINTAIN THREAT OF DAMAGING
WINDS FOR ANOTHER 2-3 HOURS.

AVIATION...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 24020.

...HART

312,0861 300,0862 300,0882 312,0881

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 12:30 PM CDT	Tornado Watch	SPC	Mobile, Washington	6 hr

Nearby

Severe Thunderstorm Watches in Alabama, 2002 Severe Thunderstorm Watches in Florida, 2002 Every severe thunderstorm watch in 2002

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.