Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 60, NWS Birmingham, AL

April 28, 2002Marshall County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 28, 2002, 9:34 PM CDT for Marshall County, Alabama. It was in force for 26 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: Apr 28, 2002, 9:34 PM CDT (02:34 UTC)
Expired: Apr 28, 2002, 10:00 PM CDT
In force: 26 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Marshall County, AL

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 28, 8:00 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.6 hours before the alert went out and 139 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: 1670 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1254 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 143 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 290234
SVRBHM
ALC095-290300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
934 PM CDT SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARSHALL COUNTY IN NORTHEAST ALABAMA

* UNTIL 1000 PM CDT

* AT 930 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES NORTHWEST OF GRANT...MOVING SOUTHEAST
  AT 35 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...RURAL NORTH
CENTRAL MARSHALL COUNTY.

STRONG DAMAGING WIND...AND LARGE HAIL ARE LIKELY WITH THIS STORM.
TAKE COVER IN A STURDY SHELTER UNTIL THE STORM PASSES.

CALL 1-800-856-0758 TO REPORT SEVERE WEATHER.

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.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 28, 8:00 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, Apr 28, 8:00 PM CDT, 1 hour 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM, AL
800 PM CDT SUN APR 28 2002

STRONG TO SEVERE THUNDERSTORMS ACROSS EXTREME NORTHERN PORTIONS OF
FORECAST AREA.  FEW SHOWERS HAVE DEVELOPED ACROSS CENTRAL PORTIONS
AS WELL.  CAPE/INSTABILITY QUITE HIGH ACROSS AREA FROM TUSCALOOSA TO
BIRMINGHAM TO ROANOKE...SPC HAS JUST ISSUED A SEVERE THUNDERSTORM
WATCH FOR THESE AREAS.  THIS WATCHG WILL REPLACE THE PREVIOUS
TORNADO WATCH ACROSS NORTHERN ALABAMA...AND WILL BE IN AFFECT
THROUGH MIDNIGHT.  HAVE ALREADY SENT UPDATE ZONES.

.BHM...NONE.

In the hours before

Local storm report, Apr 28, 6:02 PM CDT, 3 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
602 PM CDT SUN APR 28 2002

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

0600 PM    IDER                      AL   1.75 IN HAIL
04/28/02   DEKALB                         GOLFBALL SIZE HAIL WAS
                                          REPORTED IN IDER BY STORM
                                          SPOTTERS.

Local storm report, Apr 28, 7:50 PM CDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
750 PM CDT SUN APR 28 2002

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

0726 PM    HAZEL GREEN               AL   0.75 IN HAIL
04/28/02   MADISON                        DIME SIZE HAIL WAS
                                          REPORTED IN HAZEL GREEN.

0729 PM    ARDMORE                   AL   1.00 IN HAIL
04/28/02   LIMESTONE                      QUARTER SIZE HAIL FELL IN
                                          ARDMORE.

0730 PM    NEW MARKET                AL   1.00 IN HAIL
04/28/02   MADISON                        QUARTER SIZE HAIL
                                          REPORTED IN NEW MARKET.

0735 PM    ARDMORE                   AL   0.88 IN HAIL
04/28/02   LIMESTONE                      NICKEL SIZE HAIL WAS
                                          OBSERVED IN ARDMORE.

0740 PM    NEW MARKET                AL   1.50 IN HAIL
04/28/02   MADISON                        ONE AND ONE HALF INCH
                                          DIAMETER SIZE HAIL WAS
                                          REPORTED IN NEW MARKET.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:08 PM CDT	Severe Thunderstorm Warning	BMX	Madison	52 min
Apr 28, 7:25 PM CDT	Severe Thunderstorm Warning	BMX	Limestone	35 min
Apr 28, 7:36 PM CDT	Severe Thunderstorm Warning	BMX	Jackson	39 min
Apr 28, 7:59 PM CDT	Severe Thunderstorm Warning	BMX	Limestone	46 min
Apr 28, 8:14 PM CDT	Severe Thunderstorm Warning	BMX	Jackson	46 min
Apr 28, 8:15 PM CDT	Severe Thunderstorm Warning	BMX	Madison	30 min
Apr 28, 8:18 PM CDT	Tornado Warning	BMX	Limestone	27 min
Apr 28, 8:39 PM CDT	Tornado Warning	BMX	DeKalb, Jackson	66 min
Apr 28, 8:55 PM CDT	Severe Thunderstorm Warning	BMX	Madison	50 min
Apr 28, 8:57 PM CDT	Severe Thunderstorm Warning	BMX	Limestone	48 min
Apr 28, 9:13 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	47 min
Apr 28, 9:27 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Etowah	33 min
Apr 28, 9:57 PM CDT	Severe Thunderstorm Warning	BMX	Cleburne	33 min
Apr 28, 11:05 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	25 min
Apr 28, 11:19 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Talladega	26 min
Apr 29, 12:05 AM CDT	Severe Thunderstorm Warning	BMX	Talladega	25 min
Apr 29, 12:55 AM CDT	Severe Thunderstorm Warning	BMX	Randolph	35 min
Apr 29, 12:58 AM CDT	Severe Thunderstorm Warning	BMX	Tallapoosa	47 min
Apr 29, 1:24 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson	36 min
Apr 29, 4:06 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	39 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2002 Every severe thunderstorm warning in 2002

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.