Alert archive / Louisiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 16, NWS Lake Charles, LA

March 12, 1986Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 12, 1986, 8:00 AM CST for Cameron Parish, Louisiana. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Mar 12, 1986, 8:00 AM CST (14:00 UTC)
Expired: Mar 12, 1986, 9:00 AM CST
In force: 60 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Cameron Parish, LA

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 12:00Z, 2.0 hours before the alert went out and 30 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: 1135 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -181 m²/s²
0-3 km storm-relative helicity: -90 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, Mar 12, 2:56 AM CST, 5 hours 4 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
250 AM CST WED MAR 12 1986

...A TORNADO WATCH IS IN EFFECT UNTIL 4AM WEDNESDAY MORNING FOR MUCH
SOUTHWEST LOUISIANA...

...A TORNADO WATCH REMAINS IN EFFECT UNTIL 6AM CST FOR CENTRAL
LOUISIANA...

AT 230 AM CST...A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WAS
LOCATED IN SOUTHEAST TEXAS FROM JUST EAST OF JASPER TO THE BEAUMONT AREA
TO THE COAST NEAR GALVESTON TEXAS.

THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 30 MILES AN HOUR
AND WILL MOVE INTO VERNON...BEAUREGARD....CALCASIEU...AND CAMERON
PARISHES IN SOUTHWEST LOUISIANA BY 4AM CST THIS WEDNESDAY MORNING.

STRONG GUSTY WINDS AND DANGEROUS LIGHTNING WILL LIKELY ACCOMPANY THE
LINE OF THUNDERSTORMS AS IT MOVES THROUGH SOUTHWEST LOUISIANA.

A VERY HEAVY THUNDERSTORM WAS OCCURRING IN THE EXTREME NORTHEAST CORNER
OF LA SALLE PARISH IN CENTRAL LOUISIANA.  MOVEMENT WAS NORTHEAST AT 45
MdILES AN HOUR.

A LARGE AREA OF RAIN CONTINUED TO COVER THE NORTHERN HALF OF LOUISIANA
AND MOST OF EAST AND SOUTHEAST TEXAS.

Local storm report, Mar 12, 3:23 AM CST, 4 hours 37 minutes before

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Special weather statement, Mar 12, 4:39 AM CST, 3 hours 21 minutes before

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Special weather statement, Mar 12, 4:50 AM CST, 3 hours 10 minutes before

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Special weather statement, Mar 12, 6:41 AM CST, 1 hour 19 minutes before

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Local storm report, Mar 12, 7:00 AM CST, 1 hour before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 10:55 PM CST	Severe Thunderstorm Warning	LCH	Angelina, Tyler	95 min
Mar 11, 10:55 PM CST	Severe Thunderstorm Warning	LCH	San Augustine	95 min
Mar 12, 2:00 AM CST	Severe Thunderstorm Warning	LCH	Hardin, Jefferson, Orange	45 min
Mar 12, 2:00 AM CST	Severe Thunderstorm Warning	LCH	Jasper	45 min
Mar 12, 1:00 AM CST	Severe Thunderstorm Warning	LCH	Vernon	60 min
Mar 12, 1:12 AM CST	Tornado Warning	LCH	Vernon	18 min
Mar 12, 1:20 AM CST	Tornado Warning	LCH	Grant, Rapides	40 min
Mar 12, 3:00 AM CST	Severe Thunderstorm Warning	LCH	Vernon	60 min
Mar 12, 4:40 AM CST	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	60 min
Mar 12, 7:15 AM CST	Severe Thunderstorm Warning	LCH	Lafayette	30 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1986 Every severe thunderstorm warning in 1986

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.