Alert archive / Alabama / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 56, NWS Mobile, AL

May 5, 1991Lee County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 5, 1991, 3:27 PM CDT for Lee County, Alabama. It was in force for 63 min. 2 reports 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: May 5, 1991, 3:27 PM CDT (20:27 UTC)
Expired: May 5, 1991, 4:30 PM CDT
In force: 63 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Lee County, AL

What was reported inside it

Time	Report	Where	Remark
May 5, 3:50 PM CDT	Thunderstorm Wind 0	Lee, AL
May 5, 4:10 PM CDT	Thunderstorm Wind 0	Lee, AL

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 8.5 hours before the alert went out and 176 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: 538 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 5, 12:28 PM CDT, 2 hours 59 minutes before

ALZ013-MSZ014-013-051930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1227 PM CDT SUN MAY 5 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 400 PM FOR CLARKE COUNTY
IN SOUTHWEST ALABAMA...

NO SEVERE WEATHER HAS OCCURED IN SOUTHWEST ALABAMA OR SOUTHEAST
MISSISSIPPI THIS MORNING.

AT 12 NOON THE MOBILE RADAR SHOWED A LARGE AREA OF STRONG
THUNDERSTORMS OVER SOUTHEAST MISSISSIPPI NORTH AND WEST OF A LINE FROM
GULFPORT MISSISSIPPI TO STATELINE MISSISSIPPI.  THE STORMS WERE MOVING
TO THE NORTHEAST AT 30 MPH.

THESE STORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTENING...HEAVY RAIN...AND POSSIBLE SMALL HAIL.

Special weather statement, May 5, 3:15 PM CDT, 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 1:38 PM CDT	Severe Thunderstorm Warning	MOB	Washington	52 min
May 5, 2:10 PM CDT	Severe Thunderstorm Warning	MOB	Dallas	65 min
May 5, 2:22 PM CDT	Severe Thunderstorm Warning	MOB	Autauga	68 min
May 5, 2:22 PM CDT	Severe Thunderstorm Warning	MOB	Coosa	68 min
May 5, 2:48 PM CDT	Severe Thunderstorm Warning	MOB	Elmore, Montgomery	42 min
May 5, 3:01 PM CDT	Severe Thunderstorm Warning	MOB	Macon, Tallapoosa	59 min
May 5, 3:27 PM CDT	Severe Thunderstorm Warning	MOB	Bullock	63 min
May 5, 3:43 PM CDT	Severe Thunderstorm Warning	MOB	Chambers	62 min
May 5, 3:49 PM CDT	Severe Thunderstorm Warning	MOB	Pike	56 min
May 5, 4:49 PM CDT	Severe Thunderstorm Warning	MOB	Covington	56 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1991 Every severe thunderstorm warning in 1991

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.