Alert archive / Louisiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 4, NWS New Orleans, LA

January 13, 1992Saint Tammany Parish, Washington Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jan 13, 1992, 1:11 PM CST for Saint Tammany Parish, Washington Parish, Louisiana. It was in force for 36 min.

The area

The counties it named.

The facts

Issued: Jan 13, 1992, 1:11 PM CST (19:11 UTC)
Expired: Jan 13, 1992, 1:47 PM CST
In force: 36 min
Issued by: NWS New Orleans, LA
Area: Whole counties

Counties Saint Tammany Parish, LA, Washington Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.2 hours before the alert went out and 51 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: 357 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 564 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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, Jan 13, 9:42 AM CST, 3 hours 29 minutes before

LAZ008>010-012>014-MSZ010>014-ALZ016-131700-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
940 AM CST MON JAN 13 1992

...FLASH FLOOD WATCH IN EFFECT UNTIL NOON TODAY FOR THE FOLLOWING
PARISHES IN EXTREME SOUTHEAST LOUISIANA...ST.BERNARD..PLAQUEMINES..
SOUTHERN TERREBONNE..SOUTHERN LAFOURCHE..AND SOUTHERN JEFFERESON.

AT 930AM WEATHER RADAR INDICATED AN AREA OF SCATTERED THUNDERSTORMS
OVER SOUTHEAST LOUISIANA BETWEEN BATON ROUGE AND BOGALUSA EXTENDING
SOUTHWEST BETWEEN NEW IBERIA AND NEW ORLEANS AND CONTINUING SOUTHWEST
INTO THE COASTAL WATERS BETWEEN VERMILION AND TERREBONNE BAY.

BOATERS SHOULD CONTINUE TO BE ALERT FOR STRONG GUSTY WINDS...ROUGH
SEAS...AND REDUCED VISIBILITY IN THE HEAVY RAIN.

LOCAL STREET FLOODING MAY RESULT DUE TO BRIEF PERIODS OF HEAVY RAIN.

SCATTERED SHOWERS AND A FEW THUNDERRSTORMS WERE ALSO OCCURRING OVER THE
MISSISSIPPI AND ALABAMA COASTAL WATERS.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.

Special weather statement, Jan 13, 10:04 AM CST, 3 hours 7 minutes before

LAZ009-131700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1005 AM CST MON JAN 13 1992

...STRONG THUNDERSTORMS FORMING ACROSS AVOYELLES AND ST. LANDRY
PARISHES OF EAST CENTRAL LOUISIANA...

RADAR SHOWED STRONG THUNDERSTORMS NEAR MONROE THROUGH ALEXANDRIA TO
EUNICE MOVING NORTHEAST AT 40 MPH.  THE THUNDERSTORMS WILL PRODUCE
PERIODS OF VERY HEAVY RAIN WITH STREET FLOODING AND STRONG WIND GUSTS.
THESE CONDITIONS WILL CONTINUE uAND SPREAD EAST THROUGH THE AFTERNOON AS
A COLD FRONT MOVES THROUGH THE STATE.

Special weather statement, Jan 13, 10:35 AM CST, 2 hours 36 minutes before

LAZ008>010-012>014-MSZ010>014-ALZ016-131800-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1040 AM CST MON JAN 13 1992

...FLASH FLOOD WATCH IN EFFECT UNTIL NOON TODAY FOR THE FOLLOWING
PARISHES IN EXTREME SOUTHEAST LOUISIANA...ST.BERNARD..PLAQUEMINES..
SOUTHERN TERREBONNE..SOUTHERN LAFOURCHE..AND SOUTHERN JEFFERESON.

AT 1025AM WEATHER RADAR INDICATED CLUSTERS OF STRONG THUNDERSTORMS
BETWEEN BATON ROUGE AND SLIDELL EXTENDING SOUTHWEST BETWEEN THIBODAUX
AND GRAND ISLE AND CONTINUING SOUTHWEST INTO THE COASTAL WATERS.
THE HEAVIEST ACTIVITY WAS LOCATED BETWEEN HAMMOND AND SLIDELL EXTENDING
SOUTH TO ABOUT 10 MILES SOUTH OF THE NEW ORLEANS INTERNATIONAL AIRPORT.

BOATERS SHOULD CONTINUE TO BE ALERT FOR STRONG GUSTY WINDS...ROUGH
SEAS...AND REDUCED VISIBILITY IN THE HEAVY RAIN.

LOCAL STREET FLOODING MAY RESULT DUE TO BRIEF PERIODS OF HEAVY RAIN.

SCATTERED SHOWERS WERE ALSO OCCURRING ALONG THE MISSISSIPPI COAST
AND OVER THE ALABAMA COASTAL WATERS.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

Special weather statement, Jan 13, 11:18 AM CST, 1 hour 53 minutes before

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Special weather statement, Jan 13, 11:56 AM CST, 1 hour 15 minutes before

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Special weather statement, Jan 13, 12:50 PM CST, 21 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 13, 2:17 AM CST	Tornado Warning	LIX	Plaquemines	28 min
Jan 13, 10:44 AM CST	Severe Thunderstorm Warning	LIX	Jefferson	61 min
Jan 13, 11:19 AM CST	Severe Thunderstorm Warning	LIX	Ascension, Livingston	41 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1992 Every severe thunderstorm warning in 1992

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.