Alert archive / Illinois / Special Weather Statements in 2015

Special Weather Statement, NWS Lincoln, IL

May 15, 2015Richland County, Illinois

NWS Lincoln, IL issued this special weather statement at May 15, 2015, 5:01 PM CDT for Richland County, Illinois. It was in force for 29 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 15, 2015, 5:01 PM CDT (22:01 UTC)
Expired: May 15, 2015, 5:30 PM CDT
In force: 29 min
Issued by: NWS Lincoln, IL

County Richland County, IL

The radar

The Evansville,IN radar (KVWX), 52 km from the middle of the area, began a volume at 22:03 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, 10.0 hours before the alert went out and 172 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 29 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 15, 4:16 PM CDT	Special Weather Statement	ILX	Macon	29 min
May 15, 4:40 PM CDT	Special Weather Statement	ILX	Logan	35 min
May 15, 4:43 PM CDT	Special Weather Statement	ILX	Vermilion	32 min
May 15, 4:53 PM CDT	Special Weather Statement	ILX	Macon	37 min
May 15, 5:15 PM CDT	Areal Flood Advisory	ILX	Vermilion	2 hr
May 15, 5:22 PM CDT	Areal Flood Advisory	ILX	Macon	3 hr
May 15, 5:42 PM CDT	Special Weather Statement	ILX	Vermilion	33 min
May 15, 5:50 PM CDT	Special Weather Statement	ILX	Crawford	25 min
May 15, 6:48 PM CDT	Special Weather Statement	ILX	Vermilion	42 min

Nearby

Special Weather Statements in Illinois, 2015 Every special weather statement in 2015

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.