Alert archive / Illinois / Areal Flood Warnings in 2020

Areal Flood Warning 3, NWS Lincoln, IL

January 11, 2020Effingham County, Moultrie County, Shelby County, Illinois

NWS Lincoln, IL issued this areal flood warning at Jan 11, 2020, 3:14 PM CST for Effingham County, Moultrie County, Shelby County, Illinois. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 11, 2020, 3:14 PM CST (21:14 UTC)
Expired: Jan 11, 2020, 9:15 PM CST
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Effingham County, IL, Moultrie County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 104 km from the middle of the area, began a volume at 21:14 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

Nashville Metro, TN (KBNA), launched 12:00Z, 9.2 hours before the alert went out and 403 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: 819 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 633 m²/s²
0-3 km storm-relative helicity: 864 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 areal flood warning 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 areal flood warning went out at Jan 11, 12:03 PM CST, 3 hours 11 minutes earlier.

Area forecast discussion, Jan 11, 12:03 PM CST, 3 hours 11 minutes before

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Hazardous weather outlook, Jan 11, 11:27 AM CST, 3 hours 47 minutes before

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In the hours before

Local storm report, Jan 11, 12:42 PM CST, 2 hours 32 minutes before

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Local storm report, Jan 11, 12:45 PM CST, 2 hours 29 minutes before

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Local storm report, Jan 11, 12:46 PM CST, 2 hours 28 minutes before

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Local storm report, Jan 11, 2:48 PM CST, 26 minutes before

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Local storm report, Jan 11, 2:58 PM CST, 16 minutes before

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Local storm report, Jan 11, 3:08 PM CST, 6 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
Jan 11, 2:55 AM CST	Flash Flood Watch	ILX	Sangamon	51 hr
Jan 11, 3:15 AM CST	Areal Flood Warning	ILX	Champaign, Christian, Coles, Cumberland, Douglas, Edgar and 5 more	9 hr
Jan 11, 9:39 AM CST	River Flood Warning	ILX	McLean, Tazewell, Woodford	22 hr
Jan 11, 9:49 AM CST	River Flood Warning	ILX	Cass, Mason, Menard	21 days
Jan 11, 9:49 AM CST	River Flood Warning	ILX	Cass, Mason	11 days
Jan 11, 12:15 PM CST	Areal Flood Warning	ILX	Clay, Coles, Cumberland, Douglas, Effingham, Moultrie and 1 more	3 hr

Nearby

Areal Flood Warnings in Illinois, 2020 Every areal flood warning in 2020

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.