Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 159, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 30, 1990, 8:15 AM CDT for Chilton County, Shelby County, Alabama. It was in force for 60 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 30, 1990, 8:15 AM CDT (13:15 UTC)
- Expired
- Aug 30, 1990, 9:15 AM CDT
- In force
- 60 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Chilton County, AL, Shelby 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 30, 8:30 AM CDT | Thunderstorm Wind 0 | Chilton, 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 12:00Z, 1.3 hours before the alert went out and 51 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
- 2253 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1256 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 301317 SVRBHM ALC117-021-301415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 815 AM CDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 915 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH ALABAMA ...SOUTHERN SHELBY COUNTY IN SOUTH ALABAMA ...CHILTON COUNTY AT 812 AM WEATHER SERVICE RADAR INDICATED SEVERE THUNDERSTORMS OVER SOUTHWEST SHELBY COUNTY NEAR MONTEVALLO AND NORTHWEST CHILTON COUNTY. THESE THUNDERSTORMS WERE MOVING EAST-SOUTHEAST AT 20 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 30, 4:50 AM CDT, 3 hours 25 minutes before
ALZ004>009-011-013-301050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 450 AM CDT THU AUG 29 1990 STRONG THUNDERSTORMS REDEVELOP THIS MORNING IN WEST CENTRAL ALABAMA. AT 445 AM CDT WEATHER SERVICE RADAR AT CENTREVILLE SHOWED A FEW CLUSTERS OF SHOWERS AND SOME STRONG THUNDERSTORMS IN WEST AND NORTH CENTRAL ALABAMA. THE STRONGEST STORM WAS IN FAYETTE COUNTY NEAR THE COMMUNITY OF FAYETTE...SOME HAIL WAS INDICATED BY RADAR. ANOTHER ISOLATED STRONG STORM WAS IN CULLMAN COUNTY JUST TO THE EAST OF THE CITY OF CULLMAN. A CLUSTER OF SHOWERS AND EMBEDDED THUNDERSHOWERS WERE LOCATED JUST SOUTH OF THE CITY OF TUSCALOOSA AND EXTEND SOUTHWESTWARD IN NORTHERN GREENE AND SUMTER COUNTIES. ALL OF THE RAIN ACTIVITY WAS MOVING TO THE SOUTHEAST AT 20 MILES AN HOUR. CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR LATER WEATHER UPDATES AND STATEMENTS THIS MORNING.
Special weather statement, Aug 30, 6:10 AM CDT, 2 hours 5 minutes before
ALZ004>009-011-013-301130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 610 AM CDT THU AUG 29 1990 ...SEVERE THUNDERSTORM WARNING FOR HALE COUNTY HAS EXPIRED... AT 608 AM STRONG THUNDERSTORMS CONTINUED IN WEST CENTRAL ALABAMA OVER PARTS OF GREENE...HALE...AND TUSCALOOSA COUNTIES. THE STRONGEST STORM WAS OVER TUSCALOOSA COUNTY TO THE NORTH AND EAST OF THE CITY OF TUSCALOOSA. THIS STORM IS CAPABLE OF PRODUCING STRONG GUSTY WINDS... HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING THE NEXT HOUR AS IT MOVES SOUTHEAST NEAR 25 MILES AN HOUR. ANOTHER STRONG THUNDERSTORM WAS MOVING TO EAST SOUTHEAST ACROSS NORTHERN ST. CLAIR COUNTY TOWARD CALHOUN COUNTY IN NORTHEAST ALABAMA. ToHIS STORM IS ALSO CAPABLE OF PRODUCING GUSTY WINDS AND HEAVY RAINFALL DURING THE NEXT HOUR.
Special weather statement, Aug 30, 6:54 AM CDT, 1 hour 21 minutes before
ALZ004>009-011-013-301215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 652 AM CDT THU AUG 29 1990 STRONG THUNDERSTORMS RUMBLE THROUGH EASTERN TUSCALOOSA COUNTY THIS MORNING. AT 650 AM THUNDERSTORMS AND SHOWERS CONTINUED IN CENTRAL ALABAMA OVER PARTS OF HALE...JEFFERSON...PERRY...BIBB AND TUSCALOOSA COUNTIES. THE STRONGEST STORM WAS OVER EASTERN TUSCALOOSA COUNTY NEAR THE TOWNS OF VANCE...COALING AND ABERNANT. THIS STORM IS CAPABLE OF PRODUCING STRONG GUSTY WINDS...HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING THE NEXT HOUR AS IT MOVES EAST AT 25 TO 30 MILES AN HOUR. LIGHT TO MODERATE SHOWERS WERE IN HALE...SHELBY AND SOUTHERN JEFFERSON COUNTIES. PERSONS TRAVELING TO WORK THIS MORNING SHOULD ALLOW EXTRA TIME AS THE SHOWERS MOVE INTO THE BIRMINGHAM METROPOLITAN AREA THIS MORNING. CONTINUE TO LISTEN TO NOAA WEATHER RADIO...OR LOCAL NEWS MEDIA FOR LATER WEATHER UPDATES AND STATEMENTS.
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, 9:18 PM CDT | Severe Thunderstorm Warning | BMX | Limestone | 57 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 |
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.