Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 440, NWS Birmingham, AL

July 27, 1997Russell County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 27, 1997, 9:26 PM CDT for Russell 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: Jul 27, 1997, 9:26 PM CDT (02:26 UTC)
Expired: Jul 27, 1997, 10:25 PM CDT
In force: 59 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Russell County, AL

The radar

The Maxwell AFB radar (KMXX), 63 km from the middle of the area, began a volume at 02:30 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.4 hours before the alert went out and 136 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: 2430 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1303 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 280227 RRA
SVRBHM
ALC113-280325-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
926 PM CDT SUN JUL 27 1997

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1025 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL ALABAMA

   ...RUSSELL COUNTY
 
AT 922 PM CDT...WEATHER RADAR SHOWED A SEVERE THUNDERSTORM NEAR
COLUMBUS GEORGIA MOVING SOU2THWEST AT 35 MPH.  THIS STORM KNOCKED TREES
AND POWER LINES DOWN IN THE COLUMBUS AREA AROUND 915 PM.  THIS STORM
WILL MOVE INTO PHENIX CITY AND FORT MITCHELL BETWEEN 930 AND 945 PM.
 

&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 9:53 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	47 min
Jul 28, 12:19 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	31 min
Jul 28, 12:32 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	48 min
Jul 28, 1:50 PM CDT	Severe Thunderstorm Warning	BMX	Jackson	40 min
Jul 28, 2:10 PM CDT	Severe Thunderstorm Warning	BMX	DeKalb, Jackson	65 min
Jul 28, 2:33 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun	57 min
Jul 28, 2:53 PM CDT	Severe Thunderstorm Warning	BMX	Madison	52 min
Jul 28, 3:18 PM CDT	Severe Thunderstorm Warning	BMX	Morgan	57 min
Jul 28, 3:40 PM CDT	Severe Thunderstorm Warning	BMX	Marshall	65 min
Jul 28, 3:54 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	51 min
Jul 28, 3:58 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Cullman	47 min
Jul 28, 4:11 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	49 min
Jul 28, 4:15 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	60 min
Jul 28, 4:41 PM CDT	Severe Thunderstorm Warning	BMX	Tallapoosa	64 min
Jul 28, 4:50 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	40 min
Jul 28, 5:06 PM CDT	Severe Thunderstorm Warning	BMX	Coosa	54 min
Jul 28, 5:28 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	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.