Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 76, NWS Mobile, AL

March 29, 1997Monroe County, Wilcox County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 29, 1997, 4:43 PM CST for Monroe County, Wilcox County, Alabama. It was in force for 62 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: Mar 29, 1997, 4:43 PM CST (22:43 UTC)
Expired: Mar 29, 1997, 5:45 PM CST
In force: 62 min
Issued by: NWS Mobile, AL
Area: Whole counties

Counties Monroe County, AL, Wilcox County, AL

What was reported inside it

Time	Report	Where	Remark
Mar 29, 4:50 PM CST	Hail 0.75	Mc Williams, AL
Mar 29, 5:00 PM CST	Hail 0.88	Midway, 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

Jackson, MS (KJAN), launched 12:00Z, 10.7 hours before the alert went out and 265 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1355 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 292240 RRA
SVRMOB
ALC131-099-292345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
443 PM CST SAT MAR 29 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH ALABAMA
 
   ...SOUTHERN WILCOX COUNTY
 
IN SOUTHWEST ALABAMA
 
   ...NORTHERN MONROE COUNTY
 
MOBILE DOPPLER WEATHER RADAR SHOWS A SEVERE THUNDERSTORM ALONG THE
MONROE AND WILCOX COUNTY LINE. THE MAIN THREAT FROM THIS STORM WILL BE
LARGE HAIL. THE STORM WAS MOVING EAST AND WILL MOVE THROUGH OR NEAR
MCWILLIAMS BY 500 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESSl OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 5:40 PM CST	Severe Thunderstorm Warning	MOB	Butler	65 min

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.