Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 3, NWS Mobile, AL

January 25, 1990Bullock County, Pike County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 25, 1990, 6:09 AM CST for Bullock County, Pike County, Alabama. It was in force for 51 min. 3 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: Jan 25, 1990, 6:09 AM CST (12:09 UTC)
Expired: Jan 25, 1990, 7:00 AM CST
In force: 51 min
Issued by: NWS Mobile, AL
Area: Whole counties

Counties Bullock County, AL, Pike County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where
Jan 25, 6:15 AM CST	Thunderstorm Wind 0	Pike, AL
Jan 25, 6:35 AM CST	Thunderstorm Wind 0	Bullock, AL
Jan 25, 6:50 AM CST	Thunderstorm Wind 0	Bullock, 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 0.2 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: 383 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 251212
SVRMGM
ALC011-109-251300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
609 AM CST THU JAN 25 1990
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH ALABAMA
          ...BULLOCK...PIKE
 
AT 610 AM CST RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 15
MILES NORTHWEST OF UNION SPRINGS TO 15 MILES WEST OF TROY. MOVING
NORTHEAST AT 50 MPH.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG 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
Jan 25, 5:41 AM CST	Severe Thunderstorm Warning	MOB	Crenshaw	49 min
Jan 25, 6:32 AM CST	Severe Thunderstorm Warning	MOB	Lee, Macon	43 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1990 Every severe thunderstorm warning in 1990

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.