Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 34, NWS Shreveport, LA

March 16, 1987De Soto Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 16, 1987, 11:10 PM CST for De Soto Parish, Louisiana. It was in force for 75 min.

The area

The counties it named.

The facts

Issued
Mar 16, 1987, 11:10 PM CST (05:10 UTC)
Expired
Mar 17, 1987, 12:25 AM CST
In force
75 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County De Soto 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

Longview/Gregg, TX (KGGG), launched 00:00Z, 5.2 hours before the alert went out and 88 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-pSkew-T log-p diagram, Longview/Gregg, TX at 00:00Z on 1987-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 00:00Z on 1987-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
27 J/kg
Mixed-layer CIN
-207 J/kg
Mixed-layer LCL
1479 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
362 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 16, 7:40 PM CST, 3 hours 30 minutes before
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Special weather statement, Mar 16, 8:42 PM CST, 2 hours 28 minutes before
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Special weather statement, Mar 16, 8:46 PM CST, 2 hours 24 minutes before
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Local storm report, Mar 16, 9:47 PM CST, 1 hour 23 minutes before
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<body>
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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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 10:50 PM CSTSevere Thunderstorm WarningSHVCaddo80 min
Mar 17, 8:00 AM CSTSevere Thunderstorm WarningSHVDe Soto, Red River75 min
Mar 17, 10:10 AM CSTSevere Thunderstorm WarningSHVJackson, Winn70 min
Mar 17, 11:20 AM CSTSevere Thunderstorm WarningSHVMadison, Tensas70 min
Mar 16, 8:55 PM CSTSevere Thunderstorm WarningSHVHarrison, Marion65 min
Mar 16, 8:55 PM CSTSevere Thunderstorm WarningSHVCass65 min
Mar 16, 10:20 PM CSTSevere Thunderstorm WarningSHVGregg70 min
Mar 16, 10:20 PM CSTSevere Thunderstorm WarningSHVCass70 min
Mar 17, 6:10 AM CSTSevere Thunderstorm WarningSHVRusk50 min
Mar 17, 6:55 AM CSTSevere Thunderstorm WarningSHVHarrison, Panola, Rusk80 min
Mar 17, 6:55 AM CSTSevere Thunderstorm WarningSHVGregg80 min
Mar 17, 7:30 AM CSTFlash Flood WarningSHVBowie, Cass3 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 1987Every 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.