Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 355, NWS Birmingham, AL

June 17, 2003Jefferson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 17, 2003, 6:03 PM CDT for Jefferson County, Alabama. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 17, 2003, 6:03 PM CDT (23:03 UTC)
Expired: Jun 17, 2003, 6:30 PM CDT
In force: 27 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 32 km from the middle of the area, began a volume at 23:06 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, 11.1 hours before the alert went out and 31 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: 1195 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 586 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

009 
WUUS54 KBMX 172303 CCA
SVRBHM
ALC073-172330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED FOR TIME AND LOCATION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
602 PM CDT TUE JUN 17 2003

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 630 PM CDT

* AT 601 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER HOOVER...MOVING NORTH AROUND 5 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BIRMINGHAM...
BIRMINGHAM AIRPORT...CAHABA HEIGHTS...HOMEWOOD AND LEEDS.

LARGE HAIL...EXCESSIVE LIGHTNING...AND DAMAGING WINDS ARE LIKELY.
TAKE COVER IN A STURDY SHELTER UNTIL THE STORM PASSES.

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

LAT...LON 3341 8701 3368 8672 3354 8655 3348 8668
          3335 8684 3333 8692

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 4:07 PM CDT	Severe Thunderstorm Warning	BMX	Winston	23 min
Jun 17, 4:33 PM CDT	Flash Flood Warning	BMX	Winston	117 min
Jun 17, 4:44 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	31 min
Jun 17, 5:06 PM CDT	Flash Flood Warning	BMX	Marion	114 min
Jun 17, 5:12 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	33 min
Jun 17, 5:19 PM CDT	Flash Flood Warning	BMX	Jefferson	86 min
Jun 17, 5:51 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	19 min
Jun 17, 5:58 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	17 min
Jun 17, 6:10 PM CDT	Flash Flood Warning	BMX	Shelby	2 hr
Jun 17, 6:41 PM CDT	Flash Flood Warning	BMX	Jefferson	79 min
Jun 17, 6:58 PM CDT	Flash Flood Warning	BMX	Blount	2 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2003 Every severe thunderstorm warning in 2003

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.