Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 97, NWS Mobile, AL

April 5, 1997Conecuh County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 5, 1997, 2:56 PM CST for Conecuh County, Alabama. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 5, 1997, 2:56 PM CST (20:56 UTC)
Expired: Apr 5, 1997, 4:00 PM CST
In force: 64 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Conecuh County, AL

The radar

The Eglin Afb radar (KEVX), 140 km from the middle of the area, began a volume at 20:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 5, 1:00 PM CST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.9 hours before the alert went out and 196 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: 872 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 351 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 
TTAA00 KMOB 052054 RRA
SVRMOB
ALC035-052200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
256 PM CST SAT APR 5 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...CONECUH COUNTY
 
AT 253 PM...NWS DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM
MOVING OVER EASTERN MONROE COUNTY ALABAMA. THIS STORM WAS MOVING EAST AT
40 MPH AND WILL ENTER THE NORTH HALF OF CONECUH COUNTY ALABAMA BY 3 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOURT PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  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
Apr 5, 12:49 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Washington	71 min
Apr 5, 12:54 PM CST	Severe Thunderstorm Warning	MOB	Mobile	66 min
Apr 5, 1:08 PM CST	Severe Thunderstorm Warning	MOB	Clarke	67 min
Apr 5, 2:01 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	59 min
Apr 5, 2:14 PM CST	Severe Thunderstorm Warning	MOB	Wilcox	46 min
Apr 5, 2:26 PM CST	Severe Thunderstorm Warning	MOB	Monroe	64 min
Apr 5, 3:17 PM CST	Severe Thunderstorm Warning	MOB	Butler	58 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.