Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 265, NWS Mobile, AL

November 1, 1997Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Nov 1, 1997, 3:33 PM CST for Crenshaw County, Alabama. It was in force for 27 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: Nov 1, 1997, 3:33 PM CST (21:33 UTC)
Expired: Nov 1, 1997, 4:00 PM CST
In force: 27 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 86 km from the middle of the area, began a volume at 21:37 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.

What was reported inside it

Time	Report	Where	Remark
Nov 1, 3:40 PM CST	Hail 0.75	Luverne, AL	Dime size hail was reported along U S Highway 29 about six miles east of Luverne.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Nov 1, 1:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.6 hours before the alert went out and 140 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: 1154 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 625 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 012134 RRA
SVRMOB
ALC041-012200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
333 PM CST SAT NOV 1 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 SOUTH ALABAMA
 
   ...CRENSHAW COUNTY
 
AT 331 PM CST...NWS DOPPLER WEATEHR RADAR IN MOBILE INDICATED A SEVERE
THUNDERSTORM CONTAINING LARGE HAIL WAS LOCATED BETWEEN LUVERNE AND TROY.
THIS STORM WAS MOVING EAST-NORTHEAST AT 30 MPH AND WILL APPROACH THE
CRENSHAW COUNTY BORDER BY 4 PM CST.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIO<NALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 1, 12:40 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	2 hr
Nov 1, 1:16 PM CST	Severe Thunderstorm Warning	MOB	Covington	59 min
Nov 1, 2:10 PM CST	Tornado Warning	MOB	Choctaw	65 min
Nov 1, 2:21 PM CST	Severe Thunderstorm Warning	MOB	Butler	54 min
Nov 1, 2:42 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington	2 hr
Nov 1, 2:42 PM CST	Severe Thunderstorm Warning	MOB	Wilcox	2 hr
Nov 1, 2:56 PM CST	Tornado Warning	MOB	Washington	64 min
Nov 1, 3:14 PM CST	Severe Thunderstorm Warning	MOB	Monroe	61 min
Nov 1, 3:47 PM CST	Severe Thunderstorm Warning	MOB	Mobile	58 min
Nov 1, 3:47 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	58 min
Nov 1, 3:57 PM CST	Severe Thunderstorm Warning	MOB	Escambia	63 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; radar from the NEXRAD Level II archive.