Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 154, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 29, 1990, 9:18 PM CDT for Limestone County, Alabama. It was in force for 57 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
- Aug 29, 1990, 9:18 PM CDT (02:18 UTC)
- Expired
- Aug 29, 1990, 10:15 PM CDT
- In force
- 57 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Limestone 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 |
|---|---|---|---|
| Aug 29, 9:55 PM CDT | Thunderstorm Wind 0 | Limestone, 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
Nashville Metro, TN (KBNA), launched 00:00Z, 2.3 hours before the alert went out and 151 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
- 517 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 1250 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHSV 300219 SVRHSV ALC083-300315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 918 PM CDT WED AUG 29 1990 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CDT IN NORTH ALABAMA ...LIMESTONE COUNTY HUNTVILLE RADAR AT 917 THIS EVENING INDICATED A POSSIBLE SEVERE THUNDERSTORM MOVING OUT OF LAWRENCE COUNTY TENNESSEE INTO LIMESTONE COUNTY OF NORTH LABAMA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 35 MPH AND MAY PASS NEAR THE CITY OF ATHENS DURING THE NEXT HOUR. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 10PM THIS EVENING FOR MORGAN COUNTY OF NORTH ALABAMA. THE POSSIBLE SEVERE THUNDERSTORM WAS BETWEEN PRICEVILLE AND DECATUR AND WAS MOVING SOUTHEAST AT 35 MPH. 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, Aug 29, 9:11 PM CDT, 7 minutes before
ALZ004>009-011-013-300330-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
910 PM CDT WED AUG 29 1990
...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2AM CDT FOR PORTIONS
OF NORTH AND EAST CENTRAL ALABAMA...
...THUNDERSTORMS MOVE INTO NORTH CENTRAL ALABAMA...
AT 909 PM CDT...WEATHER SERVICE RADAR IN CENTREVILLE INDICATED STRONG
THUNDERSTORMS MOVING INTO NORTH CENTRAL ALABAMA. THE STRONGEST
STORMS WERE MOVING INTO BLOUNT...CULLMAN...AND ETOWAH COUNTIES. MOVEMENT
WAS TO THE SOUTHEAST AT 35 MPH. THESE STORMS ARE CAPABLE OF PRODUCING STRONG
WINDS...FREQUENT LIGHTNING...AND HEAVY RAINFALL.
OTHER SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER EAST CENTRAL
ALABAMA OVER CALHOUN...CLEBURNE...AND RANDOLPH COUNTIES.
PERSONS ARE ADVISED TO STAY INFORMED ON THE LATEST WEATHER DEVELOPMENTS BY
TUNING INTO LOCAL TV...RADIO...OR NOAA WEATHER RADIO FOR THE LATEST
STATEMENTS AND POSSIBLE WARNINGS.The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:51 PM CDT | Severe Thunderstorm Warning | BMX | Lawrence, Morgan | 69 min |
| Aug 29, 9:02 PM CDT | Severe Thunderstorm Warning | BMX | Morgan | 58 min |
| Aug 29, 10:26 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 64 min |
| Aug 29, 10:50 PM CDT | Severe Thunderstorm Warning | BMX | Marshall, Morgan | 55 min |
| Aug 30, 5:13 AM CDT | Severe Thunderstorm Warning | BMX | Hale | 47 min |
| Aug 30, 8:02 AM CDT | Severe Thunderstorm Warning | BMX | Bibb | 28 min |
| Aug 30, 8:15 AM CDT | Severe Thunderstorm Warning | BMX | Chilton, Shelby | 60 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.