Alert archive / Alabama / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 11, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 20, 1989, 7:34 PM CST for Coosa County, Alabama. It was in force for 56 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
- Mar 20, 1989, 7:34 PM CST (01:34 UTC)
- Expired
- Mar 20, 1989, 8:30 PM CST
- In force
- 56 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Coosa 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 |
|---|---|---|---|
| Mar 20, 7:55 PM CST | Thunderstorm Wind 0 | Coosa, 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, 1.6 hours before the alert went out and 89 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
- 298 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1556 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMGM 210137
SVRMGM
ALC001-037-210230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
734 PM CST MON MAR 20 1989
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH ALABAMA
...AUTAUGA...COOSA
AT 730 PM RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM
EXTREME NORTHWEST COOSA COUNTY TO MOUNTAIN CREEK...TO THE SOUTHWEST
CORNER OF AUTAUGA COUNTY. THERE WERE STRONG INDICATIONS OF LARGE HAIL
IN SOME OF THESE STORMS AS THEY MOVED EAST AT AROUND 35 MPH. THEY WILL
BE MOVING ACROSS ALL OF AUTAUGA AND COOSA COUNTIES BETWEEN 740 AND 845
PM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 20, 4:35 PM CST, 2 hours 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 435 PM CST MON MAR 20 1989 ...THUNDERSTORMS MOVING THROUGH THE HATTIESBURG AREA... AT 425 PM CST...MOBILE RADAR INDICATED A BAND OF RAIN AND THUNDERSTORMS MOVING SOUTHEAST THROUGH SOUTHERN MISSISSIPPI. THE BAND WAS LOCATED FROM NEAR MERIDIAN TO HATTIESBURG TO POPLARVILLE. THE STRONGEST THUNDER- STORMS WERE BETWEEN MERIDIAN AND HATTIESBURG. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS... HEAVY RAIN...AND POSSIBLY HAIL AS THEY MOVE NORTHEAST AT 35 MPH. CONDITIONS WILL REMAIN FAVORABLE FOR THUNDERSTORMS THE REST OF THIS AFTERNOON AND TONIGHT. SEVERE THUNDERSTORM WATCH NUMBER 41 REMAINS IN EFFECT FOR SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA UNTIL 9 PM.
Local storm report, Mar 20, 6:19 PM CST, 1 hour 15 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
615 PM CST MON MAR 21 1989
TIME COUNTY/STATE EVENT
540 PM PERRY/MS 1 INCH HAIL REPORTED BY POLICE
BETWEEN NEW AUGUSTA AND RICHTON
530 PM FORREST/MS GROCERY CONTACT REPORTED 3/4 INCH
HAIL NORTH OF CAMP SHELBY ON HIGHWAY
98.Special weather statement, Mar 20, 7:34 PM CST, 0 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 735 PM CST MON MAR 20 1989 AT 730 PM CST...THUNDERSTORMS WITH VERY HEAVY RAIN WERE DEVELOPING OVER THE NORTHWEST CORNER OF ESCAMBIA COUNTY FLORIDA AND MUCH OF SOUTHWEST ALABAMA. THESE THUNDERSTORMS MAY PRODUCE PERIODS OF VERY HEAVY RAIN...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL AS THEY MOVE NORTHEAST AT 30 TO 35 MILES AN HOUR. THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS NORTHWEST FLORIDA THIS EVENING AS CONDITIONS REMAIN FAVORABLE...SO STAY INFORMED OF THE LATEST WEATHER ADVISORIES.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 6:36 PM CST | Severe Thunderstorm Warning | MOB | Dallas | 69 min |
| Mar 20, 7:34 PM CST | Severe Thunderstorm Warning | MOB | Autauga | 56 min |
| Mar 20, 8:16 PM CST | Severe Thunderstorm Warning | MOB | Montgomery | 59 min |
| Mar 20, 9:18 PM CST | Severe Thunderstorm Warning | MOB | Covington | 57 min |
| Mar 21, 4:20 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 40 min |
| Mar 21, 5:11 AM CST | Severe Thunderstorm Warning | MOB | Elmore | 64 min |
| Mar 21, 6:35 AM CST | Severe Thunderstorm Warning | MOB | Barbour, Pike | 55 min |
| Mar 21, 7:37 AM CST | Severe Thunderstorm Warning | MOB | Barbour | 68 min |
| Mar 21, 8:04 AM CST | Severe Thunderstorm Warning | MOB | Henry, Houston | 56 min |
| Mar 21, 8:24 AM CST | Tornado Warning | MOB | Dale | 42 min |
| Mar 21, 9:15 AM CST | Severe Thunderstorm Warning | MOB | Houston | 50 min |
| Mar 21, 10:48 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 42 min |
| Mar 21, 1:45 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 45 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1989Every severe thunderstorm warning in 1989
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.