Alert archive / Missouri / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 112, NWS St. Louis, MO

October 4, 1991City of Saint Louis, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Oct 4, 1991, 6:18 PM CDT for City of Saint Louis, Missouri. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: Oct 4, 1991, 6:18 PM CDT (23:18 UTC)
Expired: Oct 4, 1991, 7:15 PM CDT
In force: 57 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County City of Saint Louis, MO

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.3 hours before the alert went out and 217 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: 203 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1045 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 117 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, Oct 4, 2:58 PM CDT, 3 hours 20 minutes before

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Special weather statement, Oct 4, 3:08 PM CDT, 3 hours 10 minutes before

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Special weather statement, Oct 4, 4:49 PM CDT, 1 hour 29 minutes before

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Special weather statement, Oct 4, 5:37 PM CDT, 41 minutes before

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Special weather statement, Oct 4, 6:04 PM CDT, 14 minutes before

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Special weather statement, Oct 4, 6:11 PM CDT, 7 minutes before

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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 St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 3, 7:49 PM CDT	Severe Thunderstorm Warning	LSX	Shelby	26 min
Oct 3, 8:05 PM CDT	Severe Thunderstorm Warning	LSX	Adair	40 min
Oct 3, 8:15 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Monroe, Ralls, Shelby	45 min
Oct 3, 8:47 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Shelby	43 min
Oct 3, 8:47 PM CDT	Severe Thunderstorm Warning	LSX	Adair	43 min
Oct 3, 9:08 PM CDT	Severe Thunderstorm Warning	LSX	Adair	52 min
Oct 3, 9:27 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Shelby	63 min
Oct 3, 9:53 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Shelby	52 min
Oct 3, 10:21 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Shelby	54 min
Oct 4, 4:12 PM CDT	Severe Thunderstorm Warning	LSX	Pike	48 min
Oct 4, 4:50 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Warren	55 min
Oct 4, 5:33 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	42 min
Oct 4, 5:41 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	57 min
Oct 4, 6:18 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis	57 min
Oct 3, 9:49 PM CDT	Severe Thunderstorm Warning	LSX	Adams	41 min
Oct 4, 8:37 AM CDT	Severe Thunderstorm Warning	LSX	Adams	38 min
Oct 4, 9:09 AM CDT	Severe Thunderstorm Warning	LSX	Brown, Pike	51 min
Oct 4, 4:56 PM CDT	Severe Thunderstorm Warning	LSX	Pike	49 min
Oct 4, 5:23 PM CDT	Severe Thunderstorm Warning	LSX	Scott	44 min
Oct 4, 5:41 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey	57 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1991 Every severe thunderstorm warning in 1991

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.