Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 17, NWS Mobile, AL

March 29, 1987Jackson County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 29, 1987, 1:57 PM CST for Jackson County, Mississippi. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Mar 29, 1987, 1:57 PM CST (19:57 UTC)
Expired
Mar 29, 1987, 3:00 PM CST
In force
63 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Jackson County, MS

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, 8.0 hours before the alert went out and 147 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.

Skew-T log-pSkew-T log-p diagram, Boothville, LA at 12:00Z on 1987-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 910 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boothville, LA at 12:00Z on 1987-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMOB 291957
SVRMOB
MSC059-292100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOBILE AL
157 PM CST SUN MAR 29 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING AND SPECIAL MARINE WARNING
EFFECTIVE UNTIL  300 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST MISSISSIPPI
          ...JACKSON
 
AND ADJOINING COASTAL WATERS OF MISSISSIPPI.
 
AT 155 PM RADAR SHOWED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF
PASCAGOULA MISSISSIPPI. THE THUNDERSTORM IS MOVING TOWARDS THE NORTH
EAST AT 40 MPH.
 
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.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 3:01 PM CSTTornado WarningMOBHarrison, Stone44 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.