Alert archive / Alabama / Tornado Watches in 1998

Tornado Watch 326

May 10, 199834 counties in Alabama; Dade County, Georgia

The Storm Prediction Center issued this tornado watch at May 10, 1998, 1:00 AM CDT for 34 counties in Alabama; Dade County, Georgia. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 10, 1998, 1:00 AM CDT (06:00 UTC)
Expired
May 10, 1998, 5:00 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 35 counties

Autauga County, AL, Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Cullman County, AL, Dallas County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Lowndes County, AL, Macon County, AL, Madison County, AL, Marshall County, AL, Montgomery County, AL, Morgan County, AL, Perry County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Dade County, GA

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 10, 1:25 AM CDTSevere Thunderstorm WarningBMXCleburne45 min

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 6.0 hours before the alert went out and 79 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, Birmingham, AL at 00:00Z on 1998-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 213 joules per kilogram.LCLLFCEL10008507005003002001001 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, Birmingham, AL at 00:00Z on 1998-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 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
213 J/kg
Mixed-layer CIN
-309 J/kg
Mixed-layer LCL
1398 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
355 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 7:00 PM CDTTornado WatchSPCAutauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 35 more6 hr
May 9, 11:30 PM CDTTornado WatchSPCChambers, Cleburne, Lee, Macon, Randolph, Russell6 hr
May 10, 1:00 PM CDTTornado WatchSPCAppling, Atkinson, Bacon, Baldwin, Ben Hill, Berrien and 45 more7 hr

Nearby

Tornado Watches in Alabama, 1998Tornado Watches in Georgia, 1998Every tornado watch in 1998

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.