Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 460, NWS Birmingham, AL

June 13, 1998Lawrence County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 13, 1998, 3:38 AM CDT for Lawrence County, Alabama. It was in force for 62 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 13, 1998, 3:38 AM CDT (08:38 UTC)
Expired
Jun 13, 1998, 4:40 AM CDT
In force
62 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Lawrence County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.6 hours before the alert went out and 157 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 1998-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2639 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 1998-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
2639 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1010 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
1.3
Supercell composite
13.1

Open this sounding in Storm Lab

The text

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

531 
WUUS1 KBHM 130839 RRA
SVRBHM
ALC079-130940-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
338 AM CDT SAT JUN 13 1998

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAWRENCE COUNTY... IN NORTHERN ALABAMA

* UNTIL 440 AM CDT

* AT 337 AM CDT... A SEVERE THUNDERSTORM WAS SHOWN...BY WEATHER RADAR
ENTERING NORTHWEST LAWRENCE COUNTY.  THE STORM WAS MOVING SOUTHEAST AT
40 MILES AN HOUR.

STAY AWAY FROM WINDOWS

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 2:43 AM CDTSevere Thunderstorm WarningBMXLauderdale62 min
Jun 13, 3:25 AM CDTSevere Thunderstorm WarningBMXColbert65 min
Jun 13, 3:34 AM CDTSevere Thunderstorm WarningBMXFranklin66 min
Jun 13, 4:04 AM CDTSevere Thunderstorm WarningBMXMadison46 min
Jun 13, 4:20 AM CDTSevere Thunderstorm WarningBMXMarion65 min
Jun 13, 4:24 AM CDTSevere Thunderstorm WarningBMXWinston66 min
Jun 13, 4:55 AM CDTSevere Thunderstorm WarningBMXLamar50 min
Jun 13, 5:30 AM CDTSevere Thunderstorm WarningBMXWalker65 min
Jun 13, 5:40 AM CDTSevere Thunderstorm WarningBMXJefferson65 min
Jun 13, 5:41 AM CDTSevere Thunderstorm WarningBMXFayette49 min
Jun 13, 6:03 AM CDTSevere Thunderstorm WarningBMXTuscaloosa62 min
Jun 13, 6:36 AM CDTSevere Thunderstorm WarningBMXBibb, Shelby64 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.