Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 21, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 10, 1990, 3:49 AM CST for Chambers County, Lee County, Alabama. It was in force for 56 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
- Feb 10, 1990, 3:49 AM CST (09:49 UTC)
- Expired
- Feb 10, 1990, 4:45 AM CST
- In force
- 56 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Chambers County, AL, Lee 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 | Remark |
|---|---|---|---|
| Feb 10, 4:05 AM CST | Thunderstorm Wind 0 | Chambers, AL | |
| Feb 10, 4:15 AM CST | 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 00:00Z, 9.8 hours before the alert went out and 171 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMGM 100952
SVRMGM
ALC011-017-041-081-101045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
349 AM CST SAT FEB 10 1990
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH ALABAMA
...BULLOCK...CHAMBERS...CRENSHAW...LEE
A LINE OF SEVERE THUNDERSTORMS HAS PASSED THROUGH MOST OF SOUTH
CENTRAL ALABAMA PRODUCING WINDS IN EXCESS OF 60 MILES AN HOUR. THE
SYSTEM IS MOVING RAPIDLY TOWARDS CHAMBERS...LEE...MACON AND CRENSHAW
COUNTIES AT GREATER THAN 55 MILES AN HOUR.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED A.REA. REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 1:27 AM CST | Severe Thunderstorm Warning | MOB | Coffee, Dale | 48 min |
| Feb 10, 1:47 AM CST | Severe Thunderstorm Warning | MOB | Washington | 58 min |
| Feb 10, 2:07 AM CST | Severe Thunderstorm Warning | MOB | Clarke | 68 min |
| Feb 10, 2:15 AM CST | Severe Thunderstorm Warning | MOB | Dallas, Wilcox | 60 min |
| Feb 10, 2:44 AM CST | Severe Thunderstorm Warning | MOB | Mobile, Washington | 46 min |
| Feb 10, 2:53 AM CST | Severe Thunderstorm Warning | MOB | Autauga, Lowndes | 67 min |
| Feb 10, 3:05 AM CST | Severe Thunderstorm Warning | MOB | Coosa, Elmore | 55 min |
| Feb 10, 3:05 AM CST | Severe Thunderstorm Warning | MOB | Montgomery | 55 min |
| Feb 10, 3:05 AM CST | Severe Thunderstorm Warning | MOB | Butler | 55 min |
| Feb 10, 3:20 AM CST | Tornado Warning | MOB | Montgomery | 25 min |
| Feb 10, 3:27 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 63 min |
| Feb 10, 3:27 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 63 min |
| Feb 10, 3:31 AM CST | Severe Thunderstorm Warning | MOB | Macon, Tallapoosa | 59 min |
| Feb 10, 3:49 AM CST | Severe Thunderstorm Warning | MOB | Crenshaw | 56 min |
| Feb 10, 3:49 AM CST | Severe Thunderstorm Warning | MOB | Bullock | 56 min |
| Feb 10, 3:55 AM CST | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 50 min |
| Feb 10, 4:11 AM CST | Severe Thunderstorm Warning | MOB | Butler, Covington | 64 min |
| Feb 10, 4:53 AM CST | Severe Thunderstorm Warning | MOB | Barbour | 67 min |
| Feb 10, 5:08 AM CST | Severe Thunderstorm Warning | MOB | Coffee, Dale, Geneva | 67 min |
| Feb 10, 6:46 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 44 min |
| Feb 10, 8:07 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 38 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1990Every 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.