Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 463, NWS Birmingham, AL

June 13, 1998Winston County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 13, 1998, 4:24 AM CDT for Winston County, Alabama. It was in force for 66 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, 4:24 AM CDT (09:24 UTC)
Expired: Jun 13, 1998, 5:30 AM CDT
In force: 66 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Winston County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.4 hours before the alert went out and 121 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: 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.

000 
TTAA00 KBHM 130924 RRA
SVRBHM
ALC133-131030-

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 530 AM CDT

* AT 423 AM CDT... A SEVERE THUNDERSTORM WAS SHOWN...BY WEATHER RADAR
MOVING INTO NORTHWEST WINSTON COUNTY NEAR HALEYVILLE.  THIS STORM WAS
MOVING SOUTHEAST AT 40 MILES AN HOUR.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING
AND 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 13, 3:49 AM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
349 AM CDT SAT JUN 13 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0320 AM    FLORENCE                  AL   50 MPH TSTM GUST
06/13/98   LAUDERDALE                     WIND GUST OF 50 MILES AN
                                          HOUR ESTIMATED BY EMA
                                          OFFICIALS.

0330 AM    FLORENCE                  AL   WIND DAMAGE
06/13/98   LAUDERDALE                     LARGE TREE FELL ONTO A
                                          HOUSE..NO INJURIES
                                          REPORTED.

Local storm report, Jun 13, 3:49 AM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
349 AM CDT SAT JUN 13 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0320 AM    FLORENCE                  AL   50 MPH TSTM GUST
06/13/98   LAUDERDALE                     WIND GUST OF 50 MILES AN
                                          HOUR ESTIMATED BY EMA
                                          OFFICIALS.

0330 AM    FLORENCE                  AL   WIND DAMAGE
06/13/98   LAUDERDALE                     LARGE TREE FELL ONTO A
                                          HOUSE..NO INJURIES
                                          REPORTED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 2:43 AM CDT	Severe Thunderstorm Warning	BMX	Lauderdale	62 min
Jun 13, 3:25 AM CDT	Severe Thunderstorm Warning	BMX	Colbert	65 min
Jun 13, 3:34 AM CDT	Severe Thunderstorm Warning	BMX	Franklin	66 min
Jun 13, 3:38 AM CDT	Severe Thunderstorm Warning	BMX	Lawrence	62 min
Jun 13, 4:04 AM CDT	Severe Thunderstorm Warning	BMX	Madison	46 min
Jun 13, 4:20 AM CDT	Severe Thunderstorm Warning	BMX	Marion	65 min
Jun 13, 4:55 AM CDT	Severe Thunderstorm Warning	BMX	Lamar	50 min
Jun 13, 5:30 AM CDT	Severe Thunderstorm Warning	BMX	Walker	65 min
Jun 13, 5:40 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson	65 min
Jun 13, 5:41 AM CDT	Severe Thunderstorm Warning	BMX	Fayette	49 min
Jun 13, 6:03 AM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	62 min
Jun 13, 6:36 AM CDT	Severe Thunderstorm Warning	BMX	Bibb, Shelby	64 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1998 Every 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.