Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 11, NWS Lake Charles, LA

February 28, 1987Sabine County, San Augustine County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 28, 1987, 1:27 AM CST for Sabine County, San Augustine County, Texas. It was in force for 78 min.

The area

The counties it named.

The facts

Issued: Feb 28, 1987, 1:27 AM CST (07:27 UTC)
Expired: Feb 28, 1987, 2:45 AM CST
In force: 78 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

Counties Sabine County, TX, San Augustine County, TX

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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.5 hours before the alert went out and 159 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: 1103 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 557 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.3

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, Feb 27, 7:31 PM CST, 5 hours 56 minutes before

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Special weather statement, Feb 27, 8:28 PM CST, 4 hours 59 minutes before

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Special weather statement, Feb 27, 9:31 PM CST, 3 hours 56 minutes before

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Special weather statement, Feb 27, 10:35 PM CST, 2 hours 52 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1030 PM CST FRI FEB 27 1987

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF LOUISIANA TONIGHT...

AT 1025 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE DECREASING
BETWEEN MORGAN CITY AND BATON ROUGE.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE INCREASING OVER
NORTHEAST TEXAS AROUND RAYBURN LAKE AND SAN AUGUSTINE.

MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR.6

Special weather statement, Feb 27, 11:30 PM CST, 1 hour 57 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1130 PM CST FRI FEB 27 1987

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF LOUISIANA TONIGHT...

AT 1125 PM...WIDELY SCATTERED SHOWERS AND PATCHES OF LIGHT RAIN WERE
OCCURRING BETWEEN LAKE CHARLES...LEESVILLE...AND EUNICE. WIDELY
SCATTERED SHOWERS  CONTINUED TO DECREASE AROUND AFCHAFALAYA BAY TO
NEAR BATON ROUGE.

SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TOf INCREASE OVER NORTH/
EAST TEXAS AND NORTHWEST LOUISIANA FROM RAYBURN LAKE ACROSS THE NORTH
PART OF TOLEDO BEND TO NEAR MANSFIELD.

THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 50 MILES AN
HOUR.

Special weather statement, Feb 28, 12:43 AM CST, 44 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1235 AM CST SAT FEB 28 1987

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF LOUISIANA TONIGHT...

AT 1226 AM...WIDELY SCATTERED STRONG THUNDERSTORMS WERE DEVELOPING
25 MILES NORTH OF LAKE CHARLES AND FROM 25 MILES SOUTHEAST OF DERIDDER
NEAR ELIZABETH TO JUST WEST OF BUNKIE LOUISIANA...ISOLATED STRONG
THUNDERSTORMS WERE ALSO SHOWN FROM 10 MILES SOUTHWEST OF LAFAYETTE TO
35 MILES NORTHEAST OF LAFAYETTE. RAIN AND SHOWERS EXTEND SOUTHEAST OF
A LINE FROM NORTHWEST OF LAKE CHARLES TO LEESVILLE TO JENA.

IN EAST TEXAS SRTONG THUNDERSTORMS WERE ALSO OCCURRING FROM NORTH OF
FREEPORT TO NORTHWEST OF HOUSTON TO SOUTHWEST OF LAKE LIVINGSTON.
THESE STRONG THUNDERSTORMS WERE MIXED IN A LARGE PATCH OF RAIN THAT
EXTENDED FROM FREEPORT TO WEST OF HOUSTON TO NORTH OF LUFKIN.
HOUR.

MOVEMENT OF THUNDERSTORMS WAS NORTHEAST AT 45 MPH.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 12:55 AM CST	Severe Thunderstorm Warning	LCH	Angelina, Tyler	65 min
Feb 28, 2:55 AM CST	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	80 min
Feb 28, 3:36 AM CST	Severe Thunderstorm Warning	LCH	Allen, Evangeline, Rapides	54 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.