Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 497, NWS Birmingham, AL

June 15, 1998Clay County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 15, 1998, 10:05 PM CDT for Clay County, Alabama. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 15, 1998, 10:05 PM CDT (03:05 UTC)
Expired
Jun 15, 1998, 10:55 PM CDT
In force
50 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Clay County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 15, 6:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 3.1 hours before the alert went out and 86 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 1998-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2325 joules per kilogram.LCLEL10008507005003002001001 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 1998-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
2325 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1384 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 160304 RRB
SVRBHM
ALC027-160355-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1005 PM CDT MON JUN 15 1998

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CLAY COUNTY... IN EAST CENTRAL ALABAMA

* UNTIL 1055 PM CDT

* AT 1004 PM CDT... A SEVERE THUNDERSTORM WAS SHOWN...BY WEATHER RADAR
MOVING INTO SOUTHERN CLAY COUNTY FROM THE SOUTHWEST.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS!

WHEN THUNDERSTORMS ARE OCCURRING... PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANC~ES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 7:27 PM CDTSevere Thunderstorm WarningBMXTuscaloosa63 min
Jun 15, 7:29 PM CDTTornado WarningBMXTuscaloosa66 min
Jun 15, 7:35 PM CDTTornado WarningBMXSumter50 min
Jun 15, 7:40 PM CDTTornado WarningBMXGreene, Marengo45 min
Jun 15, 8:00 PM CDTSevere Thunderstorm WarningBMXHale50 min
Jun 15, 8:12 PM CDTSevere Thunderstorm WarningBMXPerry48 min
Jun 15, 8:18 PM CDTSevere Thunderstorm WarningBMXJefferson, Walker47 min
Jun 15, 8:20 PM CDTSevere Thunderstorm WarningBMXTuscaloosa50 min
Jun 15, 8:26 PM CDTSevere Thunderstorm WarningBMXDallas64 min
Jun 15, 8:38 PM CDTSevere Thunderstorm WarningBMXBibb47 min
Jun 15, 8:54 PM CDTSevere Thunderstorm WarningBMXSumter46 min
Jun 15, 9:01 PM CDTSevere Thunderstorm WarningBMXAutauga, Chilton64 min
Jun 15, 9:05 PM CDTSevere Thunderstorm WarningBMXJefferson, Shelby65 min
Jun 15, 9:10 PM CDTTornado WarningBMXSumter50 min
Jun 15, 9:27 PM CDTSevere Thunderstorm WarningBMXCoosa, Elmore, Montgomery63 min
Jun 15, 9:31 PM CDTSevere Thunderstorm WarningBMXGreene, Marengo49 min
Jun 15, 9:33 PM CDTSevere Thunderstorm WarningBMXHale47 min
Jun 15, 9:36 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah, St. Clair64 min
Jun 15, 9:52 PM CDTSevere Thunderstorm WarningBMXCullman, Marshall48 min
Jun 15, 9:57 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee63 min
Jun 15, 10:02 PM CDTTornado WarningBMXTallapoosa48 min
Jun 15, 10:05 PM CDTSevere Thunderstorm WarningBMXPerry50 min
Jun 15, 10:12 PM CDTSevere Thunderstorm WarningBMXDeKalb63 min
Jun 15, 10:14 PM CDTSevere Thunderstorm WarningBMXChambers, Cleburne, Randolph46 min
Jun 15, 10:17 PM CDTTornado WarningBMXChambers48 min
Jun 15, 10:26 PM CDTSevere Thunderstorm WarningBMXLee, Macon49 min
Jun 15, 10:46 PM CDTSevere Thunderstorm WarningBMXAutauga, Chilton, Dallas49 min
Jun 15, 11:11 PM CDTSevere Thunderstorm WarningBMXCoosa, Elmore34 min
Jun 16, 3:07 AM CDTSevere Thunderstorm WarningBMXLimestone48 min
Jun 16, 1:57 PM CDTSevere Thunderstorm WarningBMXRandolph33 min
Jun 16, 2:19 PM CDTSevere Thunderstorm WarningBMXDallas36 min
Jun 16, 2:46 PM CDTSevere Thunderstorm WarningBMXAutauga, Lowndes44 min
Jun 16, 2:51 PM CDTSevere Thunderstorm WarningBMXMarengo49 min
Jun 16, 3:01 PM CDTSevere Thunderstorm WarningBMXCoosa49 min
Jun 16, 3:22 PM CDTSevere Thunderstorm WarningBMXChilton48 min
Jun 16, 3:24 PM CDTSevere Thunderstorm WarningBMXTallapoosa46 min
Jun 16, 3:31 PM CDTSevere Thunderstorm WarningBMXLowndes49 min
Jun 16, 4:11 PM CDTSevere Thunderstorm WarningBMXPerry49 min
Jun 16, 4:46 PM CDTSevere Thunderstorm WarningBMXClay, Coosa49 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1998Every severe thunderstorm warning 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.