Alert archive / Louisiana / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 61, NWS Lake Charles, LA

June 8, 1989Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 8, 1989, 8:20 AM CDT for Vermilion Parish, Louisiana. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 8, 1989, 8:20 AM CDT (13:20 UTC)
Expired
Jun 8, 1989, 9:00 AM CDT
In force
40 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Vermilion 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.3 hours before the alert went out and 255 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, Slidell Radar S, LA at 12:00Z on 1989-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2984 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 1989-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.193958Sfc1 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
2984 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
522 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
4.9
Supercell composite
26.4

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, Jun 8, 2:32 AM CDT, 5 hours 48 minutes before
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Special weather statement, Jun 8, 2:46 AM CDT, 5 hours 34 minutes before
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Special weather statement, Jun 8, 6:30 AM CDT, 1 hour 50 minutes before
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Special weather statement, Jun 8, 6:44 AM CDT, 1 hour 36 minutes before
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Special weather statement, Jun 8, 7:43 AM CDT, 37 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 7:00 PM CDTSevere Thunderstorm WarningLCHVernon60 min
Jun 7, 7:50 PM CDTSevere Thunderstorm WarningLCHLaSalle, Rapides2 hr
Jun 7, 7:53 PM CDTSevere Thunderstorm WarningLCHVernon67 min
Jun 7, 9:51 PM CDTSevere Thunderstorm WarningLCHBeauregard, Vernon69 min
Jun 7, 11:32 PM CDTSevere Thunderstorm WarningLCHBeauregard, Calcasieu58 min
Jun 7, 8:55 PM CDTSevere Thunderstorm WarningLCHAngelina, Tyler50 min
Jun 7, 9:30 PM CDTSevere Thunderstorm WarningLCHNewton60 min
Jun 7, 10:59 PM CDTTornado WarningLCHJasper31 min
Jun 7, 11:26 PM CDTSevere Thunderstorm WarningLCHNewton49 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1989Every severe thunderstorm warning in 1989

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.