Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 7, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 28, 1987, 1:16 PM CST for Autauga County, Montgomery County, Alabama. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Feb 28, 1987, 1:16 PM CST (19:16 UTC)
- Expired
- Feb 28, 1987, 2:15 PM CST
- In force
- 59 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Autauga County, AL, Montgomery 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
Centreville/Bibb, AL (KCKL), launched 12:00Z, 7.3 hours before the alert went out and 93 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 461 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 285 m²/s²
- 0-3 km storm-relative helicity
- 296 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 KMGM 281916
SVRMGM
ALC001-101-282015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
116 PM CST SAT FEB 28 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 215 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN SOUTH ALABAMA
..AUTAUGA..MONTGOMERY
AT 120 PM CST A LINE OF SEVERE THUNDERSTORMS STRETCHED ACROSS AUTAUGA
AND LOWNDES COUNTIES. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 50
MILES AN HOUR...AND WILL BE AFFECTING THE MONTGOMERY AND PRATTVILLE
AREAS WITHIN THE NEXT FEW MINUTES.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER,
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY 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, Feb 28, 9:44 AM CST, 3 hours 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 945 AM CST SAT FEB 28 1987 ...A TORNADO WATCH IS IN EFFECT FOR EXTREME SOUTHEAST MISSISSIPPI AND ALL OF SOUTHWEST ALABAMA... ...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA FOR TODAY... AT 930 AM CST THE NATIONAL WEATHER SERVICE RADAR AT MOBILE SHOWED A LINE OF VERY HEAVY THUNDERSTORMS FROM NEAR MERIDIAN MISSISSIPPI TO PASCAGOULA MISSISSIPPI THEN INTO THE GULF FORM 100 MILES. THE LINE WAS MOVING TO THE EAST AT 40 MPH. THESE STORMS ARE PRODUCING STRONG GUSTY WINDS...SEVERE LIGHTNING...AND BLINDING RAIN. THE LINE WILL MOVE INTO THE MOBILE DURING THE NEXT HOUR . RESIDENTS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA SHOULD REMAIN ALERT FOR LATER STATEMENTS OR WARNINGS.
Special weather statement, Feb 28, 9:45 AM CST, 3 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1040 AM CST SAT FEB 28 1987 AT 1030 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS LAY ALONG THE EASTERN EDGE OF MISSISSIPPI AND SOUTHWARD OVER THE CHANDELEUR ISL. OFF THE LOUISIANNA COAST. THIS LINE CONSISTED OF POTENTIALLY SEVERE THUNDERSTORMS AND WAS MOVING RAPIDLY EAST. AT THE PRESENT SPEED... THIS LINE OF STORMS WILL BE NEAR PENSACOLA AND THE WESTERN END OF THE FLORIDA PANHANDLE AROUND NOON. THE PUBLIC SHOULD WATCH FOR WORSENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS OR WARNINGS. SCATTERED SHOWERS WERE OVER THE WESTER PANHANDLE AT THIS TIME. SHOWER AND THUNDERSTORM MOVEMENT WAS TO THE NORTHEAST% AT 55 TO 60 MILES AN HOUR.
Special weather statement, Feb 28, 10:49 AM CST, 2 hours 27 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1040 AM CST SAT FEB 28 1987 ...A TORNADO WATCH IS IN EFFECT UNTIL 400 PM CST FOR THE NORTHWEST FLORIDA COUNTIES...ESCAMBIA SANTA-ROSA OKALOOSA WALTON AND HOLMES... AT 1030 AM CST...SHORT LINES OF VERY HEAVY THUNDERSTORMS WERE MIXED IN A LARGE AREA OF RAIN OVER SOUTHWEST ALABAMA...SOUTHEAST MISSISSIPPI... AND THE ADJACENT GULF TO 125 MILES. PATCHES OF RAIN WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE. THE HEAVIER THUNDERSTORMS WERE BETWEEN PENSACOLA AND MOBILE BAY...AND WERE MOVING RAPIDLY EAST. THE THUNDERSTORMS WILL BE ENTERING THE WEST END OF THE FLORIDA PANHANDLE WITHIN THE NEXT HOUR. OTHER HEAVY THUNDERSTORMS WERE 25 TO 50 MILES NORTHEAST OF MOBILE...AND OVER THE GULF 25 TO 100 MILES SOUTHWEST OF PENSACOLA. THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN... FREQUENT LIGHTNING...STRONG GUSTY WINDS...AND SOME FLOODING OF POOR DRAINAGE AREAS.
Special weather statement, Feb 28, 12:03 PM CST, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1205 PM CST SAT FEB 28 1987 ...A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF SOUTHWEST ALABAMA UNTIL 400 PM CST TODAY... ...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR SOUTHWEST ALABAMA... AT 1145 AM CST THE NATIONAL WEATHER SERVICE RADAR AT MOBILE SHOWED A LINE OF VERY HEAVY THUNDERSTORMS FROM NEAR JACKSON ALABAMA TO FAIRHOPE ALABAMA TO FORT MORGAN THEN SOUTH OVER THE GULF 100 MILES. THE LINE WAS MOVING TO THE NORTHEAST AT 50 MPH. THESE STORMS ARE PRODUCING STONG GUSTY WINDS...SEVERE LIGHTNING...AND BLINDING RAIN. RESIDENTS IN SOUTHWEST ALABAMA SHOULD REMAIN ALERT FOR POSSIBLE SEVERE WEATHER. ALL THUNDERSTORMS HAVE MOVED OUT OF SOUTHEAST MISSISSIPPI...AND BOTH THE TORNADO AND FLASH FLOOD WATCHES HAVE BEEN CANCELED FOR SOUTHEAST MISSISSIPPI.
Local storm report, Feb 28, 12:45 PM CST, 31 minutes before
ATTN SELS STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1245 PM CST SAT FEB 28 1987 .1007 AM GUST TO 60 MPH AT CITRONELLE AL .1035 AM TREES REPORTED BLOWN DOWN AT LAKE FOREST AL...2N OF D DAPHNE AL.
Special weather statement, Feb 28, 12:46 PM CST, 30 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1240 PM CST SAT FEB 28 1987 ...A TORNADO WATCH IS IN EFFECT UNTIL 400 PM CST FOR FOLLOWING COUNTIES IN NORTHWEST FLORIDA. ESCAMBIA...SANTA-ROSA...OKALOOSA...WALTON AND HOLMES. AT 1230 PM CST...SHORT LINES OF VERY HEAVY THUNDERSTORMS WERE MIXED IN A LARGE AREA OF RAIN OVER SOUTH ALABAMA...THE WEST HALF OF NORTHWEST FLORIDA...AND THE ADJACENT GULF BEYOND 125 MILES. THE HEAVIER THUNDERSTORMS WERE IN A LINE FROM NORTH WALTON COUNTY OF FLORIDA SOUTH OVER THE COASTAL WATERS AND IN A LINE FROM NORTH ESCAMBIA COUNTY SOUTH OVER THE COASTAL WATERS. THESE LINES...ALONG WITH THE LARGE AREA OF RAIN...WAS MOVING EAST IN EXCESS OF 35 MILES AN HOUR. THE INDIVIDUAL THUNDERSTORMS WITHIN THE LINES WERE MOVING RAPIDLY TOWARD THE NORTHEAST. THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND SOME FLOODING OF POOR DRLAINAGE AREA.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 9:55 AM CST | Severe Thunderstorm Warning | MOB | Mobile, Washington | 75 min |
| Feb 28, 10:30 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 60 min |
| Feb 28, 12:26 PM CST | Severe Thunderstorm Warning | MOB | Dallas | 64 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1987Every severe thunderstorm warning in 1987
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.