Alert archive / Illinois / Special Weather Statements in 2016

Special Weather Statement, NWS Lincoln, IL

July 28, 201611 counties in Illinois

NWS Lincoln, IL issued this special weather statement at Jul 28, 2016, 12:12 PM CDT for 11 counties in Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 28, 2016, 12:12 PM CDT (17:12 UTC)
Expired: Jul 28, 2016, 3:15 PM CDT
In force: 3 hr
Issued by: NWS Lincoln, IL

Counties Cass County, IL, Christian County, IL, DeWitt County, IL, Logan County, IL, Macon County, IL, Mason County, IL, Menard County, IL, Morgan County, IL, Sangamon County, IL, Scott County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 13 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 68 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: 1112 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 950 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 41 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 Jul 28, 10:51 AM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Jul 28, 10:51 AM CDT, 1 hour 21 minutes before

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Hazardous weather outlook, Jul 28, 11:12 AM CDT, 1 hour before

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In the hours before

Local storm report, Jul 28, 7:07 AM CDT, 5 hours 5 minutes before

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Local storm report, Jul 28, 7:14 AM CDT, 4 hours 58 minutes before

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Special weather statement, Jul 28, 11:54 AM CDT, 18 minutes before

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Special weather statement, Jul 28, 12:12 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
Jul 28, 6:57 AM CDT	Flash Flood Warning	ILX	DeWitt, McLean	3 hr
Jul 28, 11:54 AM CDT	Special Weather Statement	ILX	Christian	2 hr
Jul 28, 2:06 PM CDT	Special Weather Statement	ILX	McLean, Marshall, Woodford	3 hr
Jul 28, 3:03 PM CDT	Special Weather Statement	ILX	Champaign, Christian, Coles, DeWitt, Douglas, Effingham and 8 more	3 hr
Jul 28, 3:37 PM CDT	Special Weather Statement	ILX	DeWitt, Piatt	38 min

Nearby

Special Weather Statements in Illinois, 2016 Every special weather statement in 2016

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.