Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 93, NWS Mobile, AL

April 5, 1997Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 5, 1997, 2:01 PM CST for Baldwin County, Alabama. It was in force for 59 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, 2:01 PM CST (20:01 UTC)
Expired: Apr 5, 1997, 3:00 PM CST
In force: 59 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 47 km from the middle of the area, began a volume at 20:03 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 hours before the alert went out and 192 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: 356 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 503 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 411 m²/s²
0-3 km storm-relative helicity: 442 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 052002 RRA
SVRMOB
ALC003-052100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
201 PM CST SAT APR 5 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...BALDWIN COUNTY
 
AT 201 PM CST...MOBILE DOPPLER WEATHER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS WHICH WILL MOVE ACROSS BALDWIN COUNTY ALABAMA AND AFFECT
THE TOWN OF ROBERTSDALE BY 220 PM. THE MAIN THREAT FROM THESE STORMS
WILL BE DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEXADLY 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
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, 2:14 PM CST	Severe Thunderstorm Warning	MOB	Wilcox	46 min
Apr 5, 2:26 PM CST	Severe Thunderstorm Warning	MOB	Monroe	64 min
Apr 5, 2:56 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	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.