Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 14, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 18, 1987, 5:05 AM CST for Conecuh County, Escambia County, Alabama. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Mar 18, 1987, 5:05 AM CST (11:05 UTC)
- Expired
- Mar 18, 1987, 6:05 AM CST
- In force
- 60 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Conecuh County, AL, Escambia 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 00:00Z, 11.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1506 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 404 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Mar 18, 12:40 AM CST, 4 hours 25 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1235PM CST MON MAR 18 1987 ...THUNDERSTORMS OVER SOUTHEAST MISSISSIPPI AND THE COASTAL WATERS MOVING TOWARD THE MOBILE AND PENSACOLA AREAS... AT 1230 AM CST...SCATTERED VERY HEAVY THUNDERSTORMS WERE PART OF A LARGE RAIN AREA SOUTHWEST...WEST AND NORTH OF PENSACOLA. THE HEAVIEST THUNDERSTORMS WERE OCCURRING FROM SOUTH WASHINGTON COUNTY OF ALABAMA SOUTH TO BILOXI ,MISSISSIPPI. THE LARGE RAIN AREA COVERED MOST OF SOUTHEAST MISSISSIPPI...SOUTHWEST ALABAMA...THE PENSACOLA AREA OF FLORIDA AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST WHILE THE AREA SPREAD SLOWLY EAST.
Special weather statement, Mar 18, 1:36 AM CST, 3 hours 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 135PM CST MON MAR 18 1987 ...VERY HEAVY THUNDERSTORMS WERE MOVING TOWARD NORTHWEST FLORIDA... AT 130 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS EXTENDED FROM SOUTH CLARKE COUNTY OF ALABAMA SOUTHWEST TO PASCAGOULA MISSISSIPPI...THEN SOUTH OVER THE COASTAL WATERS. THIS LINE WAS MOVING EAST 15 TO 20 MPH AND WILL BE PASSING THROUGH THE MOBILE AREA WITHIN THE HOUR. THE LINE WAS PART OF A LARGE RAIN AREA WHICH COVERED THE SOUTHEAST CORNER OF MISSISSIPPI...SOUTHWEST ALABAMA...ESCAMBIA AND SANTA ROSA COUNTY OF FLORIDA...AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST WHILE THE AREbA MOVED STEADILY EAST.
Special weather statement, Mar 18, 2:43 AM CST, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 245 AM CST MON MAR 18 1987 ...A TORNADO WATCH WILL BE IN EFFECT FROM 3 AM CST UNTIL 9 AM CST FOR NORTHWEST FLORIDA INCLUDING THE FOLLOWING COUNTIES. ESCAMBIA...SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON AND HOLMES. AT 230 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS EXTENDED FROM MONROE COUNTY OF ALABAMA SOUTH SOUTHWEST ACROSS MOBILE BAY AND OUT OVER THE GULF. THIS LINE WAS MOVING EAST ABOUT 25 MILES AN HOUR TOWARD THE FLORIDA PANHANDLE. THE LINE WAS PART OF A LARGE RAIN AREA WHICH COVERED SOUTHWEST ALABAMA ...ESCAMBIA...SANTA ROSA AND OKALOOSA COUNTIES OF FLORIDA...AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST WHILE THE AREA MOVED STEADILY EAST.
Special weather statement, Mar 18, 2:46 AM CST, 2 hours 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED NATIONAL WEATHER SERVICE PENSACOLA FL 245 AM CST WED MAR 18 1987 ...A TORNADO WATCH WILL BE IN EFFECT FROM 3 AM CST UNTIL 9 AM CST FOR NORTHWEST FLORIDA INCLUDING THE FOLLOWING COUNTIES. ESCAMBIA...SANTA ROSA...OKALOOSA...WALTON...BAY...WASHINGTON AND HOLMES. AT 230 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS EXTENDED FROM MONROE COUNTY OF ALABAMA SOUTH SOUTHWEST ACROSS MOBILE BAY AND OUT OVER THE GULF. THIS LINE WAS MOVING EAST ABOUT 25 MILES AN HOUR TOWARD THE FLORIDA PANHANDLE. THE LINE WAS PART OF A LARGE RAIN AREA WHICH COVERED SOUTHWEST ALABAMA ...ESCAMBIA...SANTA ROSA AND OKALOOSA COUNTIES OF FLORIDA...AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST WHILE THE AREA MOVED STEADILY EAST.
Special weather statement, Mar 18, 3:39 AM CST, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 345 AM CST WED MAR 18 1987 ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 415 AM CST FOR SOUTH ESCAMBIA...SOUTH SANTA ROSA AND OKALOOSA COUNTIES OF NORTHWEST FLORIDA AND THE ADJACENT COASTAL WATERS... ...A TORNADO WATCH IS IN EFFECT UNTIL 9 AM CST FOR NORTHWEST FLORIDA INCLUDING THE FOLLOWING COUNTIES. ESCAMBIA...SANTA ROSA...OKALOOSA... WALTON...BAY...WASHINGTON AND HOLMES. AT 330 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS EXTENDED FROM SOUTH CONECUHCOUNTY OF ALABAMA SOUTH SOUTHWEST GULF SHORES ALABAMA AND OUT OVER THE GULF. THE LINE WAS MOVING EAST ABOUT 25 MILES AN HOUR AND WAS ENTERING THE NORTH PORTIONS OF ESCAMBIA AND SANTA ROSA COUTNIES OF FLORIDA. THE LINE WAS PART OF A LARGE RAIN AREA WHICH COVERED SOUTH ALABAMA... THE WEST FLORIDA PANHANDLE AND THE ADJACENT COASTAL WATERS.
Special weather statement, Mar 18, 4:36 AM CST, 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 445 AM CST WED MAR 18 1987 ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 511 AM CST FOR SOUTH OKALOOSA AND SOUTH WALTON COUNTIES OF NORTHWEST FLORIDA AND THE ADJACENT COASTAL WATERS... ...A TORNADO WATCH IS IN EFFECT UNTIL 9 AM CST FOR NORTHWEST FLORIDA INCLUDING THE FOLLOWING COUNTIES. ESCAMBIA...SANTA ROSA...OKALOOSA... WALTON...BAY...WASHINGTON AND HOLMES. AT 430 AM CST...A LINE OF VERY HEAVY THUNDERSTORMS EXTENDED FROM SOUTH SANTA ROSA COUNTY OF FLORIDA SOUTH SOUTHWEST OVER THE GULF. THE LINE WAS MOVING EAST ABOUT 25 MILES AN HOUR TOWARD THE FORT WALTON AREA OF NORTHWEST FLORIDA. THE LINEO WAS PART OF A LARGE RAIN AREA WHICH COVERED MOST OF SOUTH ALABAMA...THE WEST FLORIDA PANHANDLE AND THE ADJACENT COASTAL WATERS.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 11:55 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 55 min |
| Mar 18, 1:32 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 48 min |
| Mar 18, 2:22 AM CST | Tornado Warning | MOB | Baldwin | 58 min |
| Mar 18, 3:30 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 60 min |
| Mar 18, 3:47 AM CST | Flash Flood Warning | MOB | Mobile | 2 hr |
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.