Alert archive / Illinois / Special Weather Statements in 2011

Special Weather Statement, NWS Lincoln, IL

June 18, 2011Morgan County, Illinois

NWS Lincoln, IL issued this special weather statement at Jun 18, 2011, 6:49 AM CDT for Morgan County, Illinois. It was in force for 56 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: Jun 18, 2011, 6:49 AM CDT (11:49 UTC)
Expired: Jun 18, 2011, 7:45 AM CDT
In force: 56 min
Issued by: NWS Lincoln, IL

County Morgan County, IL

The radar

The Lincoln radar (KILX), 68 km from the middle of the area, began a volume at 11:50 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 00:00Z, 11.8 hours before the alert went out and 123 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: 601 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

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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 Jun 18, 6:09 AM CDT, 40 minutes earlier.

Area forecast discussion, Jun 18, 6:09 AM CDT, 40 minutes before

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Hazardous weather outlook, Jun 18, 6:10 AM CDT, 39 minutes before

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In the hours before

Local storm report, Jun 18, 3:01 AM CDT, 3 hours 48 minutes before

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Special weather statement, Jun 18, 6:49 AM 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
Jun 17, 9:33 PM CDT	Special Weather Statement	ILX	Morgan, Sangamon	57 min
Jun 17, 10:01 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	44 min
Jun 17, 10:44 PM CDT	Flash Flood Warning	ILX	Morgan, Sangamon	4 hr
Jun 17, 11:40 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	55 min
Jun 18, 12:26 AM CDT	Severe Thunderstorm Warning	ILX	Sangamon	37 min
Jun 18, 12:49 AM CDT	Flash Flood Warning	ILX	Sangamon	4 hr
Jun 18, 1:42 AM CDT	Flash Flood Warning	ILX	Cass, Morgan	3 hr
Jun 18, 2:27 AM CDT	Severe Thunderstorm Warning	ILX	Effingham, Jasper	37 min
Jun 18, 2:32 AM CDT	Flash Flood Warning Emergency	ILX	Morgan, Sangamon	20 hr
Jun 18, 2:46 AM CDT	Flash Flood Warning	ILX	Clay, Crawford, Cumberland, Effingham, Jasper, Lawrence and 2 more	12 hr
Jun 18, 8:51 AM CDT	River Flood Warning	ILX	Clay, Richland	16 days
Jun 18, 2:16 PM CDT	Flash Flood Watch	ILX	Christian, Clay, Effingham, Jasper, Lawrence, Morgan and 4 more	17 hr

Nearby

Special Weather Statements in Illinois, 2011 Every special weather statement in 2011

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.