Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 2, NWS Jackson, MS

February 28, 1987Warren County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 28, 1987, 2:26 AM CST for Warren County, Mississippi. It was in force for 34 min.

The area

The counties it named.

The facts

Issued: Feb 28, 1987, 2:26 AM CST (08:26 UTC)
Expired: Feb 28, 1987, 3:00 AM CST
In force: 34 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Warren 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

Jackson, MS (KJAN), launched 00:00Z, 8.4 hours before the alert went out and 73 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 6 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 620 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 265 m²/s²
0-3 km storm-relative helicity: 250 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 KJAN 280826
SVRJAN
MSC149-280900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
226 AM CST SAT FEB 28 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 300 AM CST FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

WEST CENTRAL MISSISSIPPI...WARREN

AT 220 AM JACKSON RADAR INDIATED A POSSIBLE SEVERE THUNDERSTORM IN
SOUTHWEST WARREN COUNTY MOVING TO THE NORTHEAST AT J50 MPH.

 A SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING WIND SPEEDS TO 60 MPH
 OR HIGHER..DIME SIZED HAIL OR LARGER..DANGEROUS LIGHTNING..AND EVEN
 TORNADOS. PEOPLE SHOULD BE PREPARED TO TAKE QUICK ACTION IF
 THREATENING WEATHER APPROACHES.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 3:07 AM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	38 min
Feb 28, 8:28 AM CST	Tornado Warning	JAN	Rankin, Simpson	32 min
Feb 28, 8:53 AM CST	Tornado Warning	JAN	Scott, Smith	37 min
Feb 28, 8:58 AM CST	Tornado Warning	JAN	Jones	32 min
Feb 28, 9:14 AM CST	Tornado Warning	JAN	Jasper	46 min
Feb 28, 9:29 AM CST	Tornado Warning	JAN	Clarke, Wayne	31 min
Feb 28, 9:46 AM CST	Tornado Warning	JAN	Lauderdale	44 min
Feb 28, 10:28 AM CST	Tornado Warning	JAN	Kemper	34 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1987 Every 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.