Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 101, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jun 21, 1990, 2:20 PM CDT for Lawrence County, Alabama. It was in force for 55 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
- Jun 21, 1990, 2:20 PM CDT (19:20 UTC)
- Expired
- Jun 21, 1990, 3:15 PM CDT
- In force
- 55 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Lawrence 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 |
|---|---|---|---|
| Jun 21, 2:36 PM CDT | Thunderstorm Wind 52 | Lawrence, 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, 7.3 hours before the alert went out and 181 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
- 1904 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1025 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- -10 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 KHSV 211923 SVRHSV ALC079-212015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 220 PM CDT THU JUN 21 1990 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM CDT IN NORTH ALABAMA ...SOUTHERN LAWRENCE COUNTY A SEVERE THUNDERSTORM WAS OBSERVED ON THE HUNTSVILLE RADAR JUST TO THE SOUTHWEST OF MOULTON ALABAMA. LARGE HAIL WAS REPORTED WITH THIS STORM BY THE MOULTON EOC IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. 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. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEAhDLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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, Jun 21, 9:22 AM CDT, 4 hours 58 minutes before
ALZ004>007-011-181530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 920 AM CDT THU JUN 21 1990 ...STRONG THUNDERSTORMS FORMING IN NORTH CENTRAL ALABAMA... AT 917 AM NATIONAL WEATHER SERVICE RADAR SHOWED A BROKEN LINE OF SHOWERS AND THUNDERSTORMS FORMING RAPIDLY IN NORTH CENTRAL ALABAMA... STRETCHING FROM BLOUNT COUNTY INTO CULLMAN...WALKER...AND FAYETTE COUNTIES. THE STRONGEST STORM AT THAT TIME WAS IN EXTREME NORTHERN BLOUNT COUNTY. THESE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT AROUND 25 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WIND...BRIEF HEAVY DOWNPOURS...DANGEROUS LIGHTNING...AND POSSIBLY SOME HAIL...AND RESIDENTS IN THE EFFECsTED AREAS SHOULD REMAIN ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
Special weather statement, Jun 21, 10:06 AM CDT, 4 hours 14 minutes before
ALZ004>007-011-181600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1005 AM CDT THU JUN 21 1990 ...STRONG THUNDERSTORMS IN NORTH CENTRAL ALABAMA... AT 1003 AM NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS IN NORTH CENTRAL ALABAMA...MOVING INTO ETOWAH COUNTY AND STRETCHING SOUTHWESTWARD INTO BLOUNT...CULLMAN...AND WALKER COUNTIES. THE STRONGEST STORMS AT THAT TIME WERE IN NORTHERN BLOUNT COUNTY JUST EAST OF BLOUNTSVILLE...IN SOUTHERN CULLMAN COUNTY NEAR SMITH DAM...AND IN SOUTHERN WALKER COUNTY NEAR OAKMAN. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WIND...BRIEF HEAVY DOWNPOURS...FREQUENT LIGHTNING...AND POSSIBLE SOME HAIL...AS THEY MOVE TO THE EAST AT AROUND 25 MPH. PERSONS IN THESE AREAS SHOULD REMAIN ALERT...AND STAYED TUNED FOR LATER STATEMENTS.
Local storm report, Jun 21, 12:20 PM CDT, 2 hours before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1218 PM CDT THU JUN 21 1989
1030 AM...NUMEROUS POWER OUTAGES IN THE TOWNS OF BLOUNTSVILLE AND
BROOKSVILLE (NORTH BLOUNTY COUNTY).
1035 AM...NUMEROUS FIRES CAUSED BY LIGHTNING REPORTED NEAR THE TOWN
OF SNEAD (NORTH BLOUNT COUNTY).
1035 AM...HOUSE DETROYED BY FIRE CAUSED BY LIGHTNING NEAR TOWN OF
SNEAD.
1058 AM...STRONG WINDS REPORTED NORTH OF BLOUNTSVILLE IN NORTHERN
x BLOUNT COUNTY BY INDIVIDUAL DRIVING INTO TOWN...NO
ESTIMATED WINDS GIVEN.The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 10:13 AM CDT | Severe Thunderstorm Warning | BMX | Blount | 62 min |
| Jun 21, 11:17 AM CDT | Severe Thunderstorm Warning | BMX | St. Clair | 58 min |
| Jun 21, 12:55 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 35 min |
| Jun 21, 1:07 PM CDT | Severe Thunderstorm Warning | BMX | Cullman | 68 min |
| Jun 21, 1:28 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 47 min |
| Jun 21, 2:24 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 51 min |
| Jun 21, 3:23 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Walker | 67 min |
| Jun 21, 3:23 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 41 min |
| Jun 21, 4:55 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 35 min |
| Jun 21, 5:45 PM CDT | Severe Thunderstorm Warning | BMX | Franklin | 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.