Alert archive / Alabama / Tornado Warnings in 1990
Tornado Warning 17, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Dec 3, 1990, 7:39 AM CST for Mobile County, Alabama. It was in force for 66 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
- Dec 3, 1990, 7:39 AM CST (13:39 UTC)
- Expired
- Dec 3, 1990, 8:45 AM CST
- In force
- 66 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Mobile 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 |
|---|---|---|---|
| Dec 3, 7:45 AM CST | Thunderstorm Wind 0 | Mobile, AL | |
| Dec 3, 8:02 AM CST | Tornado F0 | Mobile, 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, 1.7 hours before the alert went out and 164 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
- 143 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 233 m²/s²
- 0-3 km storm-relative helicity
- 279 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 031339 TORMOB ALC097-031445- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOBILE AL 739 AM CST MON DEC 3 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 845 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...MOBILE COUNTY AT 735 AM CST RADAR SHOWED A LINE OF THUNDERSTORMS FROM CITRONELLE ALABAMA TO HURLEY MISSISSIPPI. A POSSIBLE TORNADO WAS INDICATED 8 MILES WEST OF MOBILE MOVING TO THE NORTHEAST AT 30 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 INTERInOR 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 Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 3, 7:18 AM CST | Tornado Warning | MOB | Mobile | 57 min |
| Dec 3, 8:20 AM CST | Tornado Warning | MOB | Baldwin | 55 min |
| Dec 3, 9:03 AM CST | Severe Thunderstorm Warning | MOB | Butler, Covington | 57 min |
| Dec 3, 9:20 AM CST | Severe Thunderstorm Warning | MOB | Conecuh | 25 min |
| Dec 3, 9:57 AM CST | Severe Thunderstorm Warning | MOB | Covington, Crenshaw | 63 min |
| Dec 3, 10:25 AM CST | Severe Thunderstorm Warning | MOB | Coffee, Pike | 65 min |
| Dec 3, 10:51 AM CST | Severe Thunderstorm Warning | MOB | Barbour, Dale | 69 min |
| Dec 3, 10:51 AM CST | Severe Thunderstorm Warning | MOB | Geneva, Houston | 69 min |
| Dec 3, 11:05 AM CST | Severe Thunderstorm Warning | MOB | Henry | 55 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.