Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 187, NWS Mobile, AL

May 28, 1997Butler County, Conecuh County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 28, 1997, 7:33 PM CDT for Butler County, Conecuh County, Alabama. It was in force for 57 min. 1 report 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: May 28, 1997, 7:33 PM CDT (00:33 UTC)
Expired: May 28, 1997, 8:30 PM CDT
In force: 57 min
Issued by: NWS Mobile, AL
Area: Whole counties

Counties Butler County, AL, Conecuh County, AL

What was reported inside it

Time	Report	Where	Remark
May 28, 7:35 PM CDT	Thunderstorm Wind 50	Mc Kenzie, AL	Several trees were blown down in southern sections of the county near the McKenzie community.

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 00:00Z, 0.6 hours before the alert went out and 177 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 535 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 290034 RRA
SVRMOB
ALC013-035-290130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
733 PM CDT WED MAY 28 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...BUTLER COUNTY
 
IN SOUTHWEST ALABAMA
 
   ...CONECUH COUNTY
 
AT 730 PM...NWS DOPPLER WEATHER RADAR IN MOBILE INDICATED A LINE OF
SEVERE THUNDERSTORMS MOVING SOUTHEASTWARD ACROSS SOUTHERN BUTLER COUNTY
AND ALL OF CONECUCH COUNTY. THE STORMS WERE MOVING SOUTHEAST AT 20 MPH
AND DAMAGING WINDS HAVE BEEN REPORTED WITH THESE STORMS.
EVERGREEN...REPTON...MCKENZIE AND GARLAND WILL BE AFFECTED DURING THE
NEXT HOUR.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 9:16 PM CDT	Flash Flood Warning	MOB	Butler	6 hr
May 28, 9:29 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	46 min
May 29, 12:43 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Washington	4 hr
May 29, 6:44 PM CDT	Flash Flood Warning	MOB	Clarke, Monroe	4 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 1997 Every severe thunderstorm warning in 1997

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.