Alert archive / Alabama / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 185, NWS Mobile, AL

July 20, 2000Butler County, Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 20, 2000, 6:01 PM CDT for Butler County, Crenshaw County, Alabama. It was in force for 29 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: Jul 20, 2000, 6:01 PM CDT (23:01 UTC)
Expired: Jul 20, 2000, 6:30 PM CDT
In force: 29 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Butler County, AL, Crenshaw County, AL

What was reported inside it

Time	Report	Where	Remark
Jul 20, 6:25 PM CDT	Thunderstorm Wind 55 E	Luverne, AL	Trees were blown down by high winds near Luverne.

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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 11.0 hours before the alert went out and 136 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: 1211 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 1799 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 7 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 KMOB 202311 COR
SVRMOB
ALC013-041-202330-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL...CORRECTED MOVEMENT...
609 PM CDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BUTLER COUNTY IN ALABAMA
  CENTRAL CRENSHAW COUNTY IN ALABAMA
  THIS INCLUDES THE CITY OF LUVERNE

* UNTIL 630 PM CDT

* AT 609 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES WEST OF LUVERNE...MOVING EAST AT 10
  MPH.


SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN MOBILE.

LAT...LON 3177 8655 3159 8655 3156 8609 3178 8609

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 2:48 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	27 min
Jul 20, 2:48 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	27 min
Jul 20, 3:39 PM CDT	Severe Thunderstorm Warning	MOB	Marengo	36 min
Jul 20, 3:54 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	36 min
Jul 20, 4:02 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	28 min
Jul 20, 4:43 PM CDT	Severe Thunderstorm Warning	MOB	Covington	32 min
Jul 20, 6:48 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	27 min

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.