Alert archive / Illinois / Special Weather Statements in 2021

Special Weather Statement, NWS Lincoln, IL

May 6, 2021Clay County, Illinois

NWS Lincoln, IL issued this special weather statement at May 6, 2021, 4:39 PM CDT for Clay County, Illinois. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 6, 2021, 4:39 PM CDT (21:39 UTC)
Expired: May 6, 2021, 5:15 PM CDT
In force: 36 min
Issued by: NWS Lincoln, IL

County Clay County, IL

The radar

The Evansville,IN radar (KVWX), 64 km from the middle of the area, began a volume at 21:43 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.7 hours before the alert went out and 170 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: 16 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 1453 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 203 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lincoln, IL wrote its last area forecast discussion before this special weather statement went out at May 6, 2:36 PM CDT, 2 hours 3 minutes earlier.

Area forecast discussion, May 6, 2:36 PM CDT, 2 hours 3 minutes before

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Hazardous weather outlook, May 6, 3:15 PM CDT, 1 hour 24 minutes before

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In the hours before

Local storm report, May 6, 3:07 PM CDT, 1 hour 32 minutes before

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Local storm report, May 6, 3:12 PM CDT, 1 hour 27 minutes before

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Local storm report, May 6, 3:14 PM CDT, 1 hour 25 minutes before

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Local storm report, May 6, 3:36 PM CDT, 1 hour 3 minutes before

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Local storm report, May 6, 3:45 PM CDT, 54 minutes before

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Special weather statement, May 6, 4:39 PM CDT, 0 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
May 6, 1:10 PM CDT	Special Weather Statement	ILX	Clay	35 min
May 6, 1:29 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Richland	46 min
May 6, 2:09 PM CDT	Special Weather Statement	ILX	Lawrence	36 min
May 6, 2:17 PM CDT	Tornado Warning Tornado observed	ILX	Christian, Shelby	28 min
May 6, 2:29 PM CDT	Tornado Warning	ILX	Moultrie, Shelby	31 min
May 6, 2:58 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Moultrie, Shelby	26 min
May 6, 3:01 PM CDT	Severe Thunderstorm Warning	ILX	Effingham	27 min
May 6, 3:22 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	36 min
May 6, 4:46 PM CDT	Tornado Warning	ILX	Clay	14 min

Nearby

Special Weather Statements in Illinois, 2021 Every special weather statement in 2021

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.