Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 261, NWS Birmingham, AL

June 4, 2001Autauga County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 4, 2001, 1:08 PM CDT for Autauga County, Alabama. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 4, 2001, 1:08 PM CDT (18:08 UTC)
Expired: Jun 4, 2001, 1:45 PM CDT
In force: 37 min
Issued by: NWS Birmingham, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Autauga County, AL

The radar

The Birmingham radar (KBMX), 68 km from the middle of the area, began a volume at 18:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.1 hours before the alert went out and 69 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: 1722 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 518 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 041809
SVRBHM

ALC001-041845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
108 PM CDT MON JUN 4 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AUTAUGA COUNTY IN ALABAMA

* UNTIL 145 PM CDT

* AT 105 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CENTRAL AUTAUGA COUNTY...MOVING NORTHEAST
  AT 20 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WHITE CITY   
  AND RURAL NORTHEASTERN AUTAUGA COUNTY.

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

LAT...LON 3260 8671 3247 8656 3257 8642 3270 8643
          3271 8660

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 1:58 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	47 min
Jun 4, 2:09 PM CDT	Severe Thunderstorm Warning	BMX	Perry	51 min
Jun 4, 2:44 PM CDT	Severe Thunderstorm Warning	BMX	Autauga	46 min
Jun 4, 3:13 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	47 min
Jun 4, 3:23 PM CDT	Severe Thunderstorm Warning	BMX	Elmore	52 min
Jun 4, 4:28 PM CDT	Severe Thunderstorm Warning	BMX	Marion	32 min
Jun 4, 5:14 PM CDT	Severe Thunderstorm Warning	BMX	Lauderdale	31 min
Jun 4, 5:43 PM CDT	Severe Thunderstorm Warning	BMX	Limestone, Madison, Morgan	32 min
Jun 4, 6:17 PM CDT	Severe Thunderstorm Warning	BMX	Madison	28 min
Jun 4, 6:36 PM CDT	Severe Thunderstorm Warning	BMX	Jackson	39 min
Jun 4, 6:43 PM CDT	Severe Thunderstorm Warning	BMX	Madison	32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.