Alert archive / Alabama / Tornado Warnings in 1990

Tornado Warning 19, NWS Birmingham, AL

February 10, 1990Walker County, Alabama

NWS Birmingham, AL issued this tornado warning at Feb 10, 1990, 12:53 AM CST for Walker County, Alabama. It was in force for 22 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1990, 12:53 AM CST (06:53 UTC)
Expired
Feb 10, 1990, 1:15 AM CST
In force
22 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Walker County, AL

The radar

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

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 6.9 hours before the alert went out and 101 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-pSkew-T log-p diagram, Centreville/Bibb, AL at 00:00Z on 1990-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 897 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 00:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
897 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
1.5
Supercell composite
7.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 100659
TORBHM
ALC073-127-100745-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1253 AM CST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  145 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH ALABAMA
 
   ...JEFFERSON COUNTY...WALKER COUNTY
 
AT 1250 AM CST A TORNADO WAS INDICATED BY RADAR ALONG THE
JEFFERSON/WALKER COUNTY LINE AND WAS MOVING NORTHEAST AT 50 MPH.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 9, 8:29 PM CSTSevere Thunderstorm WarningBMXLauderdale61 min
Feb 9, 8:45 PM CSTTornado WarningBMXLamar30 min
Feb 9, 8:56 PM CSTTornado WarningBMXFayette34 min
Feb 9, 9:23 PM CSTTornado WarningBMXLamar37 min
Feb 9, 9:30 PM CSTTornado WarningBMXFayette30 min
Feb 9, 9:43 PM CSTTornado WarningBMXWalker47 min
Feb 9, 10:08 PM CSTTornado WarningBMXLimestone27 min
Feb 9, 10:22 PM CSTTornado WarningBMXMadison68 min
Feb 9, 10:53 PM CSTTornado WarningBMXJackson, Madison37 min
Feb 9, 11:02 PM CSTTornado WarningBMXWalker28 min
Feb 9, 11:16 PM CSTFlash Flood WarningBMXColbert, Lauderdale4 hr
Feb 9, 11:28 PM CSTTornado WarningBMXCullman, Winston47 min
Feb 9, 11:35 PM CSTTornado WarningBMXWalker40 min
Feb 9, 11:35 PM CSTTornado WarningBMXLamar40 min
Feb 10, 12:53 AM CSTTornado WarningBMXJefferson37 min
Feb 10, 1:06 AM CSTSevere Thunderstorm WarningBMXPickens69 min
Feb 10, 1:22 AM CSTSevere Thunderstorm WarningBMXGreene68 min
Feb 10, 1:30 AM CSTFlash Flood WarningBMXColbert, Franklin, Lawrence5 hr
Feb 10, 1:30 AM CSTFlash Flood WarningBMXLimestone, Madison, Marshall, Morgan5 hr
Feb 10, 1:30 AM CSTFlash Flood WarningBMXLauderdale5 hr
Feb 10, 1:30 AM CSTFlash Flood WarningBMXDeKalb, Jackson5 hr
Feb 10, 1:33 AM CSTSevere Thunderstorm WarningBMXTuscaloosa57 min
Feb 10, 1:53 AM CSTSevere Thunderstorm WarningBMXHale67 min
Feb 10, 2:00 AM CSTTornado WarningBMXGreene, Hale35 min
Feb 10, 2:06 AM CSTSevere Thunderstorm WarningBMXMarengo29 min
Feb 10, 2:19 AM CSTSevere Thunderstorm WarningBMXJefferson56 min
Feb 10, 2:20 AM CSTSevere Thunderstorm WarningBMXBibb55 min
Feb 10, 2:32 AM CSTSevere Thunderstorm WarningBMXShelby58 min
Feb 10, 2:39 AM CSTSevere Thunderstorm WarningBMXChilton51 min
Feb 10, 2:40 AM CSTTornado WarningBMXJefferson, Shelby30 min
Feb 10, 2:50 AM CSTTornado WarningBMXSt. Clair55 min
Feb 10, 2:54 AM CSTTornado WarningBMXTalladega66 min
Feb 10, 3:11 AM CSTTornado WarningBMXClay64 min
Feb 10, 3:11 AM CSTTornado WarningBMXCalhoun64 min
Feb 10, 3:33 AM CSTSevere Thunderstorm WarningBMXCleburne, Randolph37 min

Nearby

Tornado Warnings in Alabama, 1990Every tornado warning in 1990Tornadoes 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; the sounding from the Mesonet's radiosonde archive.