Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 617, NWS Birmingham, AL

July 20, 1998Tallapoosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 20, 1998, 5:40 PM CDT for Tallapoosa County, Alabama. It was in force for 35 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: Jul 20, 1998, 5:40 PM CDT (22:40 UTC)
Expired: Jul 20, 1998, 6:15 PM CDT
In force: 35 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Tallapoosa County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.7 hours before the alert went out and 98 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: 9 J/kg
Mixed-layer CIN: -292 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

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

Special weather statement, Jul 20, 11:49 AM CDT, 5 hours 51 minutes before

ALZ001>050-GAZ089-090-102-120-210445-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1149 AM CDT MON JUL 20 1998

THUNDERSTORMS HAVE DEVELOPED ALONG AN OUTFLOW BOUNDARY IN
TENNESSEE AND WILL MOVE INTO NORTH ALABAMA THIS AFTERNOON.  A FEW
STORMS MAY BECOME SEVERE OVER NORTH AND CENTRAL ALABAMA BY MID-
AFTERNOON.  THERE WILL BE A THREAT OF LARGE HAIL AND DAMAGING WINDS
WITH SOME OF THE STORMS.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT
FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR
LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TODAY. THE HAZARDOUS
WEATHER OUTLOOK FOR SOUTHWEST ALABAMA..^. SEE PRODUCT BHMSPSMOB. FOR
SOUTHEAST ALABAMA... LOOK AT MIASPSTLH.  FOR MORE WEATHER INFORMATION
VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/

Special weather statement, Jul 20, 11:49 AM CDT, 5 hours 51 minutes before

ALZ001>050-GAZ089-090-102-120-210445-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1149 AM CDT MON JUL 20 1998

THUNDERSTORMS HAVE DEVELOPED ALONG AN OUTFLOW BOUNDARY IN
TENNESSEE AND WILL MOVE INTO NORTH ALABAMA THIS AFTERNOON.  A FEW
STORMS MAY BECOME SEVERE OVER NORTH AND CENTRAL ALABAMA BY MID-
AFTERNOON.  THERE WILL BE A THREAT OF LARGE HAIL AND DAMAGING WINDS
WITH SOME OF THE STORMS.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT
FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR
LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TODAY. THE HAZARDOUS
WEATHER OUTLOOK FOR SOUTHWEST ALABAMA..^. SEE PRODUCT BHMSPSMOB. FOR
SOUTHEAST ALABAMA... LOOK AT MIASPSTLH.  FOR MORE WEATHER INFORMATION
VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/

Local storm report, Jul 20, 4:53 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
453 PM CDT MON JUL 20 1998

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

0210 PM    ALABASTER                 AL   .75 INCH HAIL
07/20/98   SHELBY                         DIME SIZED HAIL

0245 PM    WEST BLOCTON              AL   WIND DAMAGE
07/20/98   BIBB                           TREES DOWNED AND SHINGLES
                                          BLOWN OFF ROOFS

0250 PM    DUKE                      AL   WIND DAMAGE
07/20/98   CALHOUN                        SEVERAL TREES DOWN IN
                                          REEDS MILL AND DUKE AREAS

0315 PM    ASHLAND                   AL   WIND DAMAGE
07/20/98   CLAY                           SMALL TREE DOWN ON HOUSE
                                          WITH MINOR ROOF DAMAGE

0350 PM    HORTON                    AL   WIND DAMAGE
07/20/98   MARSHALL                       SEVERAL CHICKEN HOUSES AND
                                          MANY TREES DOWNED

Local storm report, Jul 20, 4:53 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
453 PM CDT MON JUL 20 1998

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

0210 PM    ALABASTER                 AL   .75 INCH HAIL
07/20/98   SHELBY                         DIME SIZED HAIL

0245 PM    WEST BLOCTON              AL   WIND DAMAGE
07/20/98   BIBB                           TREES DOWNED AND SHINGLES
                                          BLOWN OFF ROOFS

0250 PM    DUKE                      AL   WIND DAMAGE
07/20/98   CALHOUN                        SEVERAL TREES DOWN IN
                                          REEDS MILL AND DUKE AREAS

0315 PM    ASHLAND                   AL   WIND DAMAGE
07/20/98   CLAY                           SMALL TREE DOWN ON HOUSE
                                          WITH MINOR ROOF DAMAGE

0350 PM    HORTON                    AL   WIND DAMAGE
07/20/98   MARSHALL                       SEVERAL CHICKEN HOUSES AND
                                          MANY TREES DOWNED

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 12:16 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	34 min
Jul 20, 2:01 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	34 min
Jul 20, 2:13 PM CDT	Severe Thunderstorm Warning	BMX	Madison	32 min
Jul 20, 2:17 PM CDT	Severe Thunderstorm Warning	BMX	Etowah, Marshall	48 min
Jul 20, 2:40 PM CDT	Severe Thunderstorm Warning	BMX	Perry	35 min
Jul 20, 2:53 PM CDT	Severe Thunderstorm Warning	BMX	Clay	32 min
Jul 20, 3:02 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Tuscaloosa	33 min
Jul 20, 3:18 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	32 min
Jul 20, 3:24 PM CDT	Severe Thunderstorm Warning	BMX	Fayette	36 min
Jul 20, 3:34 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Tuscaloosa	46 min
Jul 20, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Lowndes	32 min
Jul 20, 3:42 PM CDT	Severe Thunderstorm Warning	BMX	Cullman	33 min
Jul 20, 3:44 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	36 min
Jul 20, 3:55 PM CDT	Severe Thunderstorm Warning	BMX	Marshall, Morgan	35 min
Jul 20, 3:59 PM CDT	Severe Thunderstorm Warning	BMX	Talladega	36 min
Jul 20, 4:00 PM CDT	Severe Thunderstorm Warning	BMX	Fayette	35 min
Jul 20, 4:04 PM CDT	Severe Thunderstorm Warning	BMX	Dallas	46 min
Jul 20, 4:05 PM CDT	Severe Thunderstorm Warning	BMX	Walker	35 min
Jul 20, 4:10 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun	35 min
Jul 20, 4:18 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	47 min
Jul 20, 4:37 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	33 min
Jul 20, 4:42 PM CDT	Severe Thunderstorm Warning	BMX	Lee	33 min
Jul 20, 5:02 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Marion	48 min
Jul 20, 5:02 PM CDT	Severe Thunderstorm Warning	BMX	Winston	48 min
Jul 20, 5:15 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	35 min
Jul 20, 3:51 PM CDT	Severe Thunderstorm Warning	BMX	Muscogee	34 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.