Alert archive / Alabama / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 384, NWS Birmingham, AL

August 4, 2000Jefferson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 4, 2000, 2:18 PM CDT for Jefferson County, Alabama. It was in force for 42 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 4, 2000, 2:18 PM CDT (19:18 UTC)
Expired: Aug 4, 2000, 3:00 PM CDT
In force: 42 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Jefferson County, AL

What was reported inside it

Time	Report	Where	Remark
Aug 4, 2:40 PM CDT	Hail 0.75	Birmingham, AL
Aug 4, 2:40 PM CDT	Thunderstorm Wind 50 E	Birmingham, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.3 hours before the alert went out and 43 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: 991 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 732 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 10 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 041919
SVRBHM
ALC073-042000-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
218 PM CDT FRI AUG 4 2000

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 300 PM CDT

* AT 215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 8 MILES NORTH OF BROOKSIDE TO 7
  MILES NORTHWEST OF SYLVAN SPRINGS...OR FROM 5 MILES EAST OF SUMITON
  TO 9 MILES WEST OF ADAMSVILLE...MOVING SOUTHEAST AT 30 MPH.

* THESE SEVERE THUNDERSTORMS WILL AFFECT...MORRIS...MAYTOWN...KIMBERLY AND
  GRAYSVILLE.

STRONG DAMAGING WIND IS LIKELY WITH THIS STORM. TAKE COVER NOW! FIND
SUBSTANTIAL SHELTER. AVOID WINDOWS...VEHICLES AND MOBILE HOMES.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A STURDY BUILDING.
DAMAGING WIND...LARGE HAIL AND HEAVY RAIN ARE ALL POSSIBLE?. STAY
INSIDE...AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 8:52 AM CDT	Severe Thunderstorm Warning	BMX	Madison	38 min
Aug 4, 1:21 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	24 min
Aug 4, 3:15 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	45 min
Aug 4, 4:07 PM CDT	Flash Flood Warning	BMX	Madison	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.