Alert archive / Illinois / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 122, NWS Paducah, KY

July 26, 2014Hamilton County, Jefferson County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jul 26, 2014, 7:16 PM CDT for Hamilton County, Jefferson County, Illinois. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 26, 2014, 7:16 PM CDT (00:16 UTC)
Expired: Jul 26, 2014, 8:00 PM CDT
In force: 44 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hamilton County, IL, Jefferson County, IL

The radar

The Evansville,IN radar (KVWX), 88 km from the middle of the area, began a volume at 00:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 26, 5:40 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.3 hours before the alert went out and 218 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1828 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

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.

NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 6:28 PM CDT, 48 minutes earlier.

Area forecast discussion, Jul 26, 6:28 PM CDT, 48 minutes before

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Hazardous weather outlook, Jul 26, 7:01 PM CDT, 15 minutes before

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In the hours before

Special weather statement, Jul 26, 2:11 PM CDT, 5 hours 5 minutes before

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Special weather statement, Jul 26, 6:42 PM CDT, 34 minutes before

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Special weather statement, Jul 26, 6:52 PM CDT, 24 minutes before

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Special weather statement, Jul 26, 6:58 PM CDT, 18 minutes before

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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 7:50 PM CDT	Special Weather Statement	PAH	Henderson, Union	40 min
Jul 26, 8:15 PM CDT	Special Weather Statement	PAH	Daviess	45 min
Jul 26, 8:46 PM CDT	Special Weather Statement	PAH	Daviess, Henderson, Union, Webster	44 min
Jul 26, 9:25 PM CDT	Special Weather Statement	PAH	Hopkins, McLean, Muhlenberg	50 min
Jul 27, 9:52 AM CDT	Lake Wind Advisory	PAH	Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more	5 hr
Jul 27, 2:51 PM CDT	Heat Advisory	PAH	Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more	4 hr
Jul 26, 7:22 PM CDT	Special Weather Statement	PAH	White	38 min
Jul 26, 7:49 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Hamilton	41 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2014 Every severe thunderstorm warning in 2014

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; radar from the NEXRAD Level II archive.