Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 97, NWS Jackson, MS

December 19, 1987Issaquena County, Washington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 19, 1987, 4:05 PM CST for Issaquena County, Washington County, Mississippi. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Dec 19, 1987, 4:05 PM CST (22:05 UTC)
Expired: Dec 19, 1987, 4:45 PM CST
In force: 40 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Issaquena County, MS, Washington County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Dec 19, 4:30 PM CST	Thunderstorm Wind 0	Issaquena, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.1 hours before the alert went out and 223 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3588 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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, Dec 19, 10:21 AM CST, 5 hours 44 minutes before

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Special weather statement, Dec 19, 1:45 PM CST, 2 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
145 PM CST SAT DEC 19 1987

      ...A LINE OF STRONG THUNDERSTORMS WEST OF MISSISSIPPI...

A LINE OF STRONG THUNDERSTORMS DEVELOPED IN TEXAS THIS MORNING
AND HAS BEEN RACING EASTWARD AT 50 TO 60 MPH DURING THE DAY. THIS
LINE HAS NOW MOVED INTO WESTERN LOUISIANA. IF THE LINE CONTINUES
AT ITS PRESENT MOVEMENT...IT WILL NEAR THE MISSISSIPPI RIVER AROUND
500 OR 600 PM.

THE ATMOSPHERE IS BECOMING INCREASINGLY MORE UNSTABLE AND THIS MEANS
THE LINE OF STORMS WILL PROBABLY HOLD TOGETHER AS IT MOVES THROUGH
MISSISSIPPI THIS EVENING.

AS THE LINE MOVES THROUGH...GUSTY WINDS OF 40 TO 50 MPH ARE EXPECTED
WITH EVEN HIGHER GUSTS< POSSIBLE.

IF THE LINE CONTINUES STRONG...A WATCH MAY EVEN BECOME NECESSARY.

INTERESTS IN MISSISSIPPI SHOULD KEEP UP WITH THE LATEST
WEATHER INFORMATION BY LISTENING TO NOAA WEATHER RADIO.

Special weather statement, Dec 19, 3:26 PM CST, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
330 PM CST SAT DEC 19 1987

      ...A LINE OF STRONG THUNDERSTORMS NEARING MISSISSIPPI...

A LINE OF STRONG THUNDERSTORMS IN LOUISIANA IS RACING EASTWARD
TOWARD MISSISSIPPI AT 55 TO 60 MPH. THE LINE IS EXPECTED TO NEAR
THE MISSISSIPPI RIVER BETWEEN 430 AND 500 PM.

THE ATMOSPHERE IS BECOMING INCREASINGLY MORE UNSTABLE AND THIS MEANS
THE LINE OF STORMS WILL PROBABLY HOLD TOGETHER AS IT MOVES THROUGH
MISSISSIPPI THIS EVENING.

AS THE LINE MOVES THROUGH...GUSTY WINDS OF 40 TO 50 MPH ARE EXPECTED
WITH EVEN HIGHER GUSTS POSSIBLE.

IF THE LINE CONTINUES STRONG...A WATCH MAY EVEN BECOME NECESSARY
FOR PORTIONS OF MISSISSIPPI.
<

ALL INTERESTS IN MISSISSIPPI SHOULD KEEP UP WITH THE LATEST
WEATHER INFORMATION BY LISTENING TO NOAA WEATHER RADIO.

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 19, 4:05 PM CST	Severe Thunderstorm Warning	JAN	Warren	40 min
Dec 19, 4:41 PM CST	Severe Thunderstorm Warning	JAN	Warren	34 min
Dec 19, 4:41 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	34 min
Dec 19, 5:07 PM CST	Severe Thunderstorm Warning	JAN	Hinds	23 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.