Alert archive / Alabama / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 97, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 31, 1986, 10:54 PM CDT for Lauderdale County, Alabama. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1986, 10:54 PM CDT (03:54 UTC)
- Expired
- Jul 31, 1986, 11:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Lauderdale County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 3.9 hours before the alert went out and 167 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
- 1728 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1622 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAAOO KHSV 010400 COR
SVRHSV
ALC077-010445-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING... CORRECTION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1054 PM CDT THU JUL 31 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN NORTH ALABAMA
..LAUDERDALE
AT 10:52PM CDT... HUNTSVILLE RADAR WAS INDICATING A POSSIBLE SEVERE
THUNDERSTORM IN EXTREME NORTHERN LAUDERDALE COUNTY NEAR THREET AND
CLOVERDALE. THE THUNDERSTORM HAS BEEN MOVING EAST-SOUTHEAST AT
25 TO 30 MPH.
THE SEVERE THUNDERSTORM WARNING FOR MARSHALL AND MADISON COUNTIES
IS CANCELLED. THUNDERSTORMS THAT WERE THREATENING MARSHALL AND
MADISON COUNTIES MOVED EAST AND WEAKENED. THERE WERE NO REPORTS OF
SEVERE WEATHER FROM THIS PARTICULAR STORM.
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
DEADLY LIGHTN$ING. 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, Jul 31, 6:31 PM CDT, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 630 PM CDT THU JUL 31 1986 THUNDERSTORMS CONTINUE TO MOVE TO THE SOUTH OVER EASTERN ALABAMA AND THE SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES, AUTAUGA...BULLOCK...CHILTON...CLARKE...CONECUH...COOSA... CRENSHAW...DALLAS...GREENE...HALE...LOWNDES...MARENGO...MONROE... MONTGOMERY...PERRY...SUMTER...WI
Special weather statement, Jul 31, 6:35 PM CDT, 4 hours 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 630 PM CDT THU JUL 31 1986 THUNDERSTORMS CONTINUE TO MOVE TO THE SOUTH OVER EASTERN ALABAMA AND THE SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES, AUTAUGA...BULLOCK...CHILTON...CLARKE...CONECUH...COOSA... CRENSHAW...DALLAS...GREENE...HALE...LOWNDES...MARENGO...MONROE... MONTGOMERY...PERRY...SUMTER...WILCOX. HOWEVER STRONG THUNDERSTORMS CONTINUE OVER A PORTION OF SOUTHEAST ALABAMA AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9PM CDT FOR SEVERAL COUNTIES IN SOUTHEAST ALABAMA.
Special weather statement, Jul 31, 7:01 PM CDT, 3 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 630 PM CDT THU JUL 31 1986 THE SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES, ELMORE...TALLAPOOSA...LEE AND CHAMBERS. HOWEVER BULLOCK COUNTY WAS MISTAKENLY CLEARED ON THE LAST STATEMENT. BULLOCK COUNTY WILL BE ADDED TO THE LIST OF COUNTIES THAT CONTINUE IN SEVERE THUNDERSTORM WATCH NUMBER 442 COVERING SOUTHEAST ALABAMA.
Special weather statement, Jul 31, 7:04 PM CDT, 3 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 700 PM CDT THU JUL 31 1986 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 9PM FOR SOUTHEAST ALABAMA COUNTIES FROM MACON AND RUSSELL COUNTIES SOUTHWARD... RADAR SHOWED A BAND IF INTENSE THUNDERSTORMS OVER EAST ALABAMA AT 650 PM. THE STRONGEST STORMS WERE FROM TALASSEE TO HURTSBORO.. AND MOVING SOUTH AT AROUND 20 MPH. THE STORMS WILL BE PRODUCING STRONG GUSTY WINDS...INTENSE LIGHTNING... BLINDING RAIN...AND SOME HAIL. PLEASE REMAIN ALERT UNTIL THE WATCH EXPIRES IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS. DEVAUGHN
Local storm report, Jul 31, 7:12 PM CDT, 3 hours 42 minutes before
STORM REPORT NATIONAL WEATHER SERVICE MONTGOMERY AL 710 PM CDT THU JUL 31 1986 5PM CDT...LEE-CHAMBERS COUNTY LINE NORTH OF OPELIKA...BLINDING RAIN..HIGH WINDS..MARBLE SIZED HAIL. REPORT FROM LEE COUNTY EMA. 6PM...NUMEROUS TREES DOWN IN ALEXANDER CITY..BLOCKING ROADS...PEA SIZED HAIL AND TORRENTIAL RAIN. FROM DPS ALEXANDER CITY. 5-6 PM...POWER OUTAGES ALL OVER AUBURN..OPELIKA..ALEXANDER CITY... AND TALASSEE. DEVAUGHN
Local storm report, Jul 31, 9:47 PM CDT, 1 hour 7 minutes before
STORM REPORT NATIONAL WEATHER SERVICE MONTGOMERY AL 940 PM CDT THU JUL 31 1986 630 PM CDT IN TALASSEE..ALONG THE TALLAPOOSA-ELMORE COUNTY LINE.. WIND DAMAGE TO THE TOPS OF TWO BUILDINGS...NUMEROUS POWER LINES AND TREES DOWN. 730 PM...POWER LINES DOWN ALONG THE ALABAMA-GEORGIA BORDER NEAR EUFAULA. 730 PM...POWER LINES DOWN IN TROY..PIKE COUNTY. NO THUNDERSTORMS WERE IN THE IMMEDIATE AREA..BUT A GUST FRONT CAUSED BY A DISSIPATING THUNDERSTORM WAS OBSERVED ON RADAR. 825 PM..CLAYTON IN BARBOUR COUNTY...A POLICE COMMUNICATIONS TOWER BLOWN DOWN. DEVAUGHN
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 8:44 PM CDT | Severe Thunderstorm Warning | BMX | Lauderdale, Limestone | 61 min |
| Jul 31, 9:16 PM CDT | Severe Thunderstorm Warning | BMX | Limestone, Madison | 59 min |
| Jul 31, 9:16 PM CDT | Severe Thunderstorm Warning | BMX | Lauderdale | 34 min |
| Jul 31, 10:23 PM CDT | Severe Thunderstorm Warning | BMX | Madison, Marshall | 52 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.