Alert archive / Alabama / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 113, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 16, 1986, 2:54 PM CDT for Limestone County, Madison County, Morgan County, Alabama. It was in force for 66 min. 3 reports 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 16, 1986, 2:54 PM CDT (19:54 UTC)
- Expired
- Aug 16, 1986, 4:00 PM CDT
- In force
- 66 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Limestone County, AL, Madison County, AL, Morgan 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 16, 3:30 PM CDT | Thunderstorm Wind 0 | Limestone, AL | |
| Aug 16, 3:30 PM CDT | Thunderstorm Wind 0 | Madison, AL | |
| Aug 16, 3:30 PM CDT | Thunderstorm Wind 0 | Morgan, 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 12:00Z, 7.9 hours before the alert went out and 163 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
- 4010 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAAOO KHSV 161954
SVRHSV
ALC083-089-103-162100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
254 PM CDT SAT AUG 16 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 400 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN NORTH ALABAMA
..LIMESTONE..MADISON..MORGAN
AT 253PM CDT HUNTSVILLE RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS MOVING THROUGH EAST LIMESTONE WEST MADISON AND
CENTRAL MORGAN COUNTIES AT 30 MPH.
THE SEVER THUNDERSTORM WARNING FOR MORGAN AND MADISON IS EXTENED
UNTIL 4PM CDT AND A NEW WARNING IS ISSUED FOR LIMESTONE COUNTY
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 UNTILA THE STORM HAS PASSED.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 16, 1:40 PM CDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 138 PM CDT SUN AUG 16 1986 A LINE OF STRONG THUNDERSTORMS WAS MOVING ACROSS NORTHWEST ALABAMA EARLY IN THE AFTERNOON. AT 135PM CDT...THE LINE OF THUNDERSTORMS WAS LOCATED FROM REFORM IN PICKENS COUNTY, TO WINFIELD AND HACKLEBURG IN MARION COUNTY, THEN INTO THE NORTHWEST PORTION OF THE STATE. THIS LINE OF THUNDERSTORMS WAS MOVING TO THE EAST AT 25 TO 30 AND IS EXPECTED TO MOVE THROUGH PICKENS, LAMAR, MARION AND FAYETTE COUNTIES...THEN INTO TUSCALOOSA, WALKER AND WINSTON COUNTIES BY 2 PM CDT. STRONG GUSTY WINDS, BRIEF BUT TORRENTIAL RAIN, AND FREQUENT LIGHTNING WILL ACCOMPANY THESE STORMS. WIND GUSTS TO 48 MPH WERE RECdORDED AT COLUMBUS MS. AND 42 MPH AT TUPELO MS. AS THIS LINE OF THUNDERSTORMS MOVED THROUGH MISSISSIPPI SHORTLY AFTER NOON.
Special weather statement, Aug 16, 2:48 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 245 PM CDT SAT AUG 16 1986 AT 240 PM CDT WEATHER RADAR AT MONTGOMERY SHOWED A SHORT INTENSE LINE OF THUNDER STORMS EXTENDING FROM CENTREVILLE TO NEAR CAMDEN IN WEST CENTRAL ALABAMA. THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT 20 MILES AN HOUR AND WILL PASS OVER SELMA VERY SHORTLY. THESE INTENSE THUNDERSTORMS WILL BE ACCOMPANIED BY HEAVY RAINS AND VERY DANGEROUS LIGHTNING. T,HE THUNDERSTORMS ALSO HAVE THE POTENTIAL FOR STRONG GUSTY WINDS AND SMALL HAIL. PEOPLE IN CENTRAL ALABAMA SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS THROUGHOUT THE REMAINDER OF THIS AFTERNOON AND EVENING.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 2:00 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 60 min |
| Aug 16, 2:25 PM CDT | Severe Thunderstorm Warning | BMX | Morgan | 35 min |
| Aug 16, 2:25 PM CDT | Severe Thunderstorm Warning | BMX | Walker, Winston | 35 min |
| Aug 16, 2:50 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 40 min |
| Aug 16, 2:50 PM CDT | Severe Thunderstorm Warning | BMX | Cullman | 40 min |
| Aug 16, 3:15 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 30 min |
| Aug 16, 3:30 PM CDT | Severe Thunderstorm Warning | BMX | St. Clair, Shelby | 60 min |
| Aug 16, 3:30 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 60 min |
| Aug 16, 3:30 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 30 min |
| Aug 16, 4:08 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Talladega | 52 min |
| Aug 16, 4:08 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 52 min |
| Aug 16, 4:30 PM CDT | Severe Thunderstorm Warning | BMX | Randolph | 90 min |
| Aug 16, 4:50 PM CDT | Severe Thunderstorm Warning | BMX | Clay, Cleburne | 45 min |
| Aug 16, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Perry | 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.