Alert archive / Alabama / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 18, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 29, 1987, 2:43 PM CST for Mobile County, Alabama. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Mar 29, 1987, 2:43 PM CST (20:43 UTC)
- Expired
- Mar 29, 1987, 3:40 PM CST
- In force
- 57 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Mobile 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
Boothville, LA (KBVE), launched 12:00Z, 8.7 hours before the alert went out and 190 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
- 910 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 531 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 292046
SVRMOB
ALC097-292240-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOBILE AL
243 PM CST SUN MAR 29 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 340 PM CST FOR PEOPLE
IN THE FOLLOWING COUNTY...
IN SOUTHWEST ALABAMA
...MOBILE
AND ADJOINING COASTAL WATERS OF ALABAMA.
AT 243 PM RADAR SHOWED A SEVERE THUNDERSTORM JUST SOUTHWEST OF THE MOBILE
AIRPORT...MOVING TO THE NORTHEAST AT 40 MPH. LARGE HAIL AND DAMAGING
WINDS SHOULD BE EXPECTED WITH THIS STORM.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 29, 2:41 PM CST, 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 245 PM CST SUN MAR 29 1987 ...TORNADO WATCH IN EFFECT FOR ALL SOUTHEAST MISSISSIPPI AND ALL SOUTHWEST ALABAMA COUNTIES EXCEPT ESCAMBIA AND CONECUH UNTIL 600 PM... ...SEVERE THUNDERSTORM WARNING IN EFFECT FOR JACKSON COUNTY MISSISSIPPI UNTIL 300 PM CST... AT 240 PM CST MOBILE RADAR SHOWED A CLUSTER OF VERY HEAVY THUNDERSTORMS MOVING THROUGH MOBILE COUNTY ALABAMA AND JACKSON COUNTY MISSISSIPPI. THE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 40 MPH. OTHER SHOWERS AND THUNDERSHOWERS COVERED MOST OF SOUTHEAST MISSISSIPPI. THESE SHOWERS ARE MOVING TO THE NORTHEAST AT 40 MPH. RESIDENTS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA CAN EXPECT BRIEF PERIODS OF HEAVY RAINFALL...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL WITH THE STRONGER STORMS.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 4:00 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 60 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.