Alert archive / Alabama / Tornado Warnings in 1990
Tornado Warning 26, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at Feb 10, 1990, 3:11 AM CST for Calhoun County, Alabama. It was in force for 64 min. 1 report 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, 3:11 AM CST (09:11 UTC)
- Expired
- Feb 10, 1990, 4:15 AM CST
- In force
- 64 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Calhoun 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, 3:30 AM CST | Thunderstorm Wind 69 | Calhoun, 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, 9.2 hours before the alert went out and 160 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 KBHM 100912 TORBHM ALC015-027-101015- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 311 AM CST SAT FEB 10 1990 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 415 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH ALABAMA ...CALHOUN COUNTY...CLAY COUNTY AT 310 AM CST SEVERE THUNDERSTORMS CONTAINING POSSIBLE TORNADOES WERE MOVING INTO CALHOUN AND CLAY COUNTIES 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 9, 8:29 PM CST | Severe Thunderstorm Warning | BMX | Lauderdale | 61 min |
| Feb 9, 8:45 PM CST | Tornado Warning | BMX | Lamar | 30 min |
| Feb 9, 8:56 PM CST | Tornado Warning | BMX | Fayette | 34 min |
| Feb 9, 9:23 PM CST | Tornado Warning | BMX | Lamar | 37 min |
| Feb 9, 9:30 PM CST | Tornado Warning | BMX | Fayette | 30 min |
| Feb 9, 9:43 PM CST | Tornado Warning | BMX | Walker | 47 min |
| Feb 9, 10:08 PM CST | Tornado Warning | BMX | Limestone | 27 min |
| Feb 9, 10:22 PM CST | Tornado Warning | BMX | Madison | 68 min |
| Feb 9, 10:53 PM CST | Tornado Warning | BMX | Jackson, Madison | 37 min |
| Feb 9, 11:02 PM CST | Tornado Warning | BMX | Walker | 28 min |
| Feb 9, 11:16 PM CST | Flash Flood Warning | BMX | Colbert, Lauderdale | 4 hr |
| Feb 9, 11:28 PM CST | Tornado Warning | BMX | Cullman, Winston | 47 min |
| Feb 9, 11:35 PM CST | Tornado Warning | BMX | Walker | 40 min |
| Feb 9, 11:35 PM CST | Tornado Warning | BMX | Lamar | 40 min |
| Feb 10, 12:53 AM CST | Tornado Warning | BMX | Walker | 22 min |
| Feb 10, 12:53 AM CST | Tornado Warning | BMX | Jefferson | 37 min |
| Feb 10, 1:06 AM CST | Severe Thunderstorm Warning | BMX | Pickens | 69 min |
| Feb 10, 1:22 AM CST | Severe Thunderstorm Warning | BMX | Greene | 68 min |
| Feb 10, 1:30 AM CST | Flash Flood Warning | BMX | Colbert, Franklin, Lawrence | 5 hr |
| Feb 10, 1:30 AM CST | Flash Flood Warning | BMX | Limestone, Madison, Marshall, Morgan | 5 hr |
| Feb 10, 1:30 AM CST | Flash Flood Warning | BMX | Lauderdale | 5 hr |
| Feb 10, 1:30 AM CST | Flash Flood Warning | BMX | DeKalb, Jackson | 5 hr |
| Feb 10, 1:33 AM CST | Severe Thunderstorm Warning | BMX | Tuscaloosa | 57 min |
| Feb 10, 1:53 AM CST | Severe Thunderstorm Warning | BMX | Hale | 67 min |
| Feb 10, 2:00 AM CST | Tornado Warning | BMX | Greene, Hale | 35 min |
| Feb 10, 2:06 AM CST | Severe Thunderstorm Warning | BMX | Marengo | 29 min |
| Feb 10, 2:19 AM CST | Severe Thunderstorm Warning | BMX | Jefferson | 56 min |
| Feb 10, 2:20 AM CST | Severe Thunderstorm Warning | BMX | Bibb | 55 min |
| Feb 10, 2:32 AM CST | Severe Thunderstorm Warning | BMX | Shelby | 58 min |
| Feb 10, 2:39 AM CST | Severe Thunderstorm Warning | BMX | Chilton | 51 min |
| Feb 10, 2:40 AM CST | Tornado Warning | BMX | Jefferson, Shelby | 30 min |
| Feb 10, 2:50 AM CST | Tornado Warning | BMX | St. Clair | 55 min |
| Feb 10, 2:54 AM CST | Tornado Warning | BMX | Talladega | 66 min |
| Feb 10, 3:11 AM CST | Tornado Warning | BMX | Clay | 64 min |
| Feb 10, 3:33 AM CST | Severe Thunderstorm Warning | BMX | Cleburne, Randolph | 37 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.