Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 329, NWS Birmingham, AL

May 9, 1997Coosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 9, 1997, 2:12 PM CDT for Coosa County, Alabama. It was in force for 48 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: May 9, 1997, 2:12 PM CDT (19:12 UTC)
Expired: May 9, 1997, 3:00 PM CDT
In force: 48 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Coosa County, AL

The radar

The Birmingham radar (KBMX), 55 km from the middle of the area, began a volume at 19:15 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

Birmingham, AL (KBMX), launched 12:00Z, 7.2 hours before the alert went out and 57 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: 846 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 9, 10:35 AM CDT, 3 hours 37 minutes before

ALZ024-091610-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1035 AM CDT FRI MAY 9 1997

THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY HAS BEEN
CANCELLED AND IS NO LONGER IN EFFECT.  NUMEROUS REPORTS OF MINOR
DAMAGE FROM STRONG WIND HAVE BEEN RECEIVED.

RAIN WILL CONTINUE IN JEFFERSON COUNTY FOR THE NEXT 30 MINUTES OR SO
BEFORE ENDING.

Special weather statement, May 9, 11:13 AM CDT, 2 hours 59 minutes before

ALZ027-091650-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1113 AM CDT FRI MAY 9 1997

THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TALLADEGA  COUNTY HAS
BEEN CANCELLED.  THE THUNDERSTORMS HAVE SHIFTED EAST AND WEAKENED.

Special weather statement, May 9, 11:14 AM CDT, 2 hours 58 minutes before

ALZ027-091650-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1113 AM CDT FRI MAY 9 1997

THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TALLADEGA  COUNTY HAS
BEEN CANCELLED.  THE THUNDERSTORMS HAVE SHIFTED EAST AND WEAKENED.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 8:27 AM CDT	Severe Thunderstorm Warning	BMX	Pickens	58 min
May 9, 8:54 AM CDT	Severe Thunderstorm Warning	BMX	Fayette	46 min
May 9, 9:00 AM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	60 min
May 9, 9:07 AM CDT	Severe Thunderstorm Warning	BMX	Walker	48 min
May 9, 9:29 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson	46 min
May 9, 10:17 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson	23 min
May 9, 10:52 AM CDT	Severe Thunderstorm Warning	BMX	Talladega	48 min
May 9, 2:52 PM CDT	Severe Thunderstorm Warning	BMX	Lee	48 min
May 9, 3:39 PM CDT	Severe Thunderstorm Warning	BMX	Lee	46 min
May 9, 4:08 PM CDT	Severe Thunderstorm Warning	BMX	Russell	62 min
May 9, 3:20 PM CDT	Severe Thunderstorm Warning	BMX	Muscogee	50 min
May 9, 4:17 PM CDT	Severe Thunderstorm Warning	BMX	Chattahoochee	53 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.