Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 25, NWS Lincoln, IL

June 8, 1993Cass County, Menard County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 8, 1993, 8:35 AM CDT for Cass County, Menard County, Illinois. It was in force for 25 min.

The area

The counties it named.

The facts

Issued: Jun 8, 1993, 8:35 AM CDT (13:35 UTC)
Expired: Jun 8, 1993, 9:00 AM CDT
In force: 25 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Cass County, IL, Menard County, IL

The nearest sounding before it

Jefferson Prvg G, IN (KMDN), launched 12:00Z, 1.6 hours before the alert went out and 418 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: 555 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 156 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.6

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, 5:26 AM CDT, 3 hours 9 minutes before

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Special weather statement, Jun 8, 6:37 AM CDT, 1 hour 58 minutes before

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Special weather statement, Jun 8, 6:39 AM CDT, 1 hour 56 minutes before

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Special weather statement, Jun 8, 7:35 AM CDT, 1 hour before

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Special weather statement, Jun 8, 7:39 AM CDT, 56 minutes before

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Special weather statement, Jun 8, 7:59 AM CDT, 36 minutes before

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The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 8:20 AM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard	25 min
Jun 8, 8:47 AM CDT	Severe Thunderstorm Warning	ILX	McLean	58 min
Jun 8, 8:59 AM CDT	Severe Thunderstorm Warning	ILX	DeWitt	31 min
Jun 8, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	McLean	62 min
Jun 8, 4:48 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	27 min
Jun 8, 5:12 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Sangamon	48 min
Jun 8, 5:12 PM CDT	Severe Thunderstorm Warning	ILX	Christian	48 min
Jun 8, 5:18 PM CDT	Tornado Warning	ILX	McLean	27 min
Jun 8, 5:39 PM CDT	Tornado Warning	ILX	Logan, Macon, Sangamon	36 min
Jun 8, 5:46 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, Macon	44 min
Jun 8, 6:01 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Moultrie, Piatt	29 min
Jun 8, 6:24 PM CDT	Tornado Warning	ILX	Champaign	36 min
Jun 8, 6:29 PM CDT	Severe Thunderstorm Warning	ILX	Lee, Ogle	46 min
Jun 8, 6:34 PM CDT	Tornado Warning	ILX	Champaign, Vermilion	26 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1993 Every severe thunderstorm warning in 1993

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.