Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 104, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 28, 1990, 1:23 PM CDT for Covington County, Alabama. It was in force for 67 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
- Apr 28, 1990, 1:23 PM CDT (18:23 UTC)
- Expired
- Apr 28, 1990, 2:30 PM CDT
- In force
- 67 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Covington 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 |
|---|---|---|---|
| Apr 28, 1:30 PM CDT | Hail 1.75 | Covington, 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, 6.4 hours before the alert went out and 197 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
- 75 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 718 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMGM 281825 SVRMGM ALC039-281930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MONTGOMERY AL 123 PM CDT SAT APR 28 1990 THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH ALABAMA ...COVINGTON COUNTY WEATHER RADAR IN MONTGOMERY HAS OBSERVED A SEVERE THUNDERSTORM IN COVINGTON COUNTY...5 MILES SOUTHWEST OF ANDALUSIA MOVING EASTSOUTHEAST AT 30 MILES AN HOUR. THIS STORM HAS HAD A HISTORY OF DAMAGING WINDS IN OTHER COUNTIES. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALL Y DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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, Apr 28, 10:15 AM CDT, 3 hours 8 minutes before
ALZ013-015-281630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1010 AM CDT SAT APR 28 1990 ...THUNDERSTORMS WITH GUSTY WINDS AND POSSIBLE HAIL FOR CLARKE... MONROE AND CONECUH COUNTIES OF ALABAMA... AT 1005 AM A SHORT LINE OF THUNDERSTORMS HAD DEVELOPED NORTHEAST TO SOUTHWEST ACROSS CLARKE COUNTY ALABAMA. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH. DURING THE NEXT TWO HOURS THE THUNDERSTORMS WILL CONTINUE TO INTENSIFY AS %THEY MOVE ACROSS EASTERN CLARKE...MONROE AND CONECUH COUNTIES. THE STRONGER THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...BRIEF HEAVY RAINFALL AND POSSIBLY SOME HAIL.
Special weather statement, Apr 28, 11:39 AM CDT, 1 hour 44 minutes before
FLZ001>004-251200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1130 AM CDT SAT APR 28 1990 AT 1125 AM CDT...PENSACOLA RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS IN EXTREME SOUTH ALABAMA. THE LINE BEGAN NEAR MONTGOMERY AND EXTENDED SOUTHWEST TO THE WEST END OF ESCAMBIA COUNTY IN ALABAMA. THE LINE WAS MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. AT THIS VELOCITY THESE THUNDERSTORMS COULD MOVE INTO NORTHERN ESCAMBIA AND SANTA ROSA COUNTIES OF FLORIDA DURING THE NEXT ONE TO TWO HOURS. THESE STORMS MAY EASILY PRODUCE SMALL HAIL AND STRONG GUSTY WINDS IN ADDITION TO HEAVY RAIN AND FREQUENT LIGHTNING. PERSONS IN THE PATH OF THIS LINE OF THUNVDERSTORMS SHOULD REMAIN ALERT FOR THREATENING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A SAFE PLACE IF SEVERE WEATHER OCCURS.
Special weather statement, Apr 28, 12:00 PM CDT, 1 hour 23 minutes before
ALZ015-281800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL NOON CDT SAT APR 28 1990 ...A TORNADO WATCH IS IN EFFECT FOR MONROE...ESCAMBIA AND CONECUH COUNTIES IN ALABAMA UNTIL 500 PM CDT... AT 1155 AM THE MOBILE RADAR INDICATED A LINE OF THUNDERSTORMS FROM 15 MILES SOUTH OF MONTGOMERY TO 10 MILES NORTH OF BAY MINETTE. THE STRONGEST STORM ALONG THIS LINE IN SOUTHWEST ALABAMA WAS LOCATED 8 MILES NORTH OF ATMORE IN ESCAMBIA COUNTY. THE THUNDERSTORMS ARE MOVING TO THE EAST NORTHEAST AT 30 MPH...AND IF THE STORM NORTH OF ATMORE CONTINUES TO INCREASE RAPIDLY A THUNDERSTORM WARNING MAY BE NEEDED IN CONECUH COUNTY DURING THE NEXT HOUR. RESIDENTS IN THE WATCH ARE SHOULD R|EMAIN ALERT FOR THE POSSIBILITY OF SEVERE WEATHER UNTIL LATER THIS AFTERNOON.
Local storm report, Apr 28, 12:38 PM CDT, 45 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1235 PM CDT SAT APR 28 1990
TIME/CDT LOCATION EVENT
1230PM LENOX/CONECUH COUNTY EVERGREEN STATE TROOPERS POST
REPORTED MARBLE SIZE HAIL AND
A FEW TREES BLOWN DOWN IN LENOX.Special weather statement, Apr 28, 1:14 PM CDT, 9 minutes before
ALZ015-281915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 114 PM CDT SAT APR 28 1990 ...A TORNADO WATCH REMAINS IN EFFECT FOR ESCAMBIA AND CONECUH COUNTIES OF SOUTHWEST ALABAMA...IS CANCELLED FOR MONROE COUNTY... AT 110 PM THE MOBILE RADAR SHOWED A LINE OF THUNDERSTORMS FROM NEAR TROY SOUTHWEST TO JUST EAST OF ATMORE IN ESCAMBIA COUNTY. THE THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 30 MPH. A STRONG THUNDERSTORM IS LOCATED 8 MILES EAST OF ATMORE AND IF RAPID INTENSIFICATION CONTINUES...A WARNING MAY BE NEEDED FOR ESCAMBIA COUNTY DURING THE NEXT HALF HOUR.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 11:44 AM CDT | Severe Thunderstorm Warning | MOB | Butler | 61 min |
| Apr 28, 12:15 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh | 45 min |
| Apr 28, 12:29 PM CDT | Severe Thunderstorm Warning | MOB | Bullock | 46 min |
| Apr 28, 12:49 PM CDT | Severe Thunderstorm Warning | MOB | Macon | 56 min |
| Apr 28, 1:04 PM CDT | Severe Thunderstorm Warning | MOB | Pike | 41 min |
| Apr 28, 1:12 PM CDT | Severe Thunderstorm Warning | MOB | Barbour, Bullock | 63 min |
| Apr 28, 1:46 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 44 min |
| Apr 28, 2:19 PM CDT | Severe Thunderstorm Warning | MOB | Coffee | 56 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.