Alert archive / Illinois / Areal Flood Warnings in 2015

Areal Flood Warning 7, NWS Lincoln, IL

July 9, 2015McLean County, Illinois

NWS Lincoln, IL issued this areal flood warning at Jul 9, 2015, 3:53 AM CDT for McLean 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: Jul 9, 2015, 3:53 AM CDT (08:53 UTC)
Expired: Jul 9, 2015, 9:45 AM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County McLean County, IL

The radar

The Lincoln radar (KILX), 56 km from the middle of the area, began a volume at 08:58 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, 8.9 hours before the alert went out and 43 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: 456 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 225 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 Jul 9, 3:29 AM CDT, 24 minutes earlier.

Area forecast discussion, Jul 9, 3:29 AM CDT, 24 minutes before

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Hazardous weather outlook, Jul 8, 3:21 PM CDT, 12 hours 32 minutes before

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In the hours before

Local storm report, Jul 8, 10:39 PM CDT, 5 hours 14 minutes before

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Local storm report, Jul 8, 10:41 PM CDT, 5 hours 12 minutes before

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Local storm report, Jul 8, 10:48 PM CDT, 5 hours 5 minutes before

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Local storm report, Jul 8, 11:28 PM CDT, 4 hours 25 minutes before

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Local storm report, Jul 8, 11:52 PM CDT, 4 hours 1 minute before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jul 8, 11:53 PM CDT, 4 hours before

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      <h1 id="headline">This service is currently unavailable.</h1>
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 8, 9:24 PM CDT	Areal Flood Advisory	ILX	McLean	3 hr
Jul 8, 10:05 PM CDT	Flash Flood Warning	ILX	McLean	6 hr
Jul 8, 10:36 PM CDT	Flash Flood Warning	ILX	Champaign	3 hr
Jul 9, 8:28 AM CDT	River Flood Warning	ILX	Cass, Mason, Menard	6 days
Jul 9, 8:28 AM CDT	River Flood Warning	ILX	Cass, Mason	8 days
Jul 9, 8:32 AM CDT	River Flood Warning	ILX	McLean, Tazewell, Woodford	37 hr
Jul 9, 8:36 AM CDT	River Flood Warning	ILX	Mason, Menard	37 hr
Jul 9, 10:14 AM CDT	River Flood Warning	ILX	Clay, Richland	3 days

Nearby

Areal Flood Warnings in Illinois, 2015 Every areal flood warning 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.