Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 282, NWS Mobile, AL

November 21, 1997Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Nov 21, 1997, 9:14 PM CST for Baldwin County, Alabama. It was in force for 61 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: Nov 21, 1997, 9:14 PM CST (03:14 UTC)
Expired: Nov 21, 1997, 10:15 PM CST
In force: 61 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 03:17 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
Nov 21, 8:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.2 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: 1557 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 793 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 302 m²/s²
Significant tornado parameter: 2.6
Supercell composite: 10.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 220313 RRA
SVRMOB
ALC003-220415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
914 PM CST FRI NOV 21 1997
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...BALDWIN COUNTY
 
AT 914 PM CST...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
MOVING OVER CENTRAL BALDWIN COUNTY BETWEEN STAPLETON...BAY MINETTE
DAPHNE AND ROBERTSDALE.
 
MOVEMENT WAS TO THE EAST AT 40 MPH.
 
DAMAGING WINDS...LARGE HAIL AND POSSIBLE TORNADOES MAY ACCOMPANY THIS
STORM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
SlTRONG 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
Nov 21, 7:08 PM CST	Tornado Warning	MOB	Mobile	52 min
Nov 21, 7:23 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	67 min
Nov 21, 9:27 PM CST	Tornado Warning	MOB	Covington, Escambia	48 min
Nov 21, 10:13 PM CST	Tornado Warning	MOB	Covington	47 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.