Alert archive / Illinois / Areal Flood Warnings in 2009

Areal Flood Warning 13, NWS Lincoln, IL

May 16, 2009Logan County, Mason County, Illinois

NWS Lincoln, IL issued this areal flood warning at May 16, 2009, 6:16 PM CDT for Logan County, Mason County, Illinois. It was in force for 225 days. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 16, 2009, 6:16 PM CDT (23:16 UTC)
Expired: Dec 27, 2009, 12:00 PM CST
In force: 225 days
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Logan County, IL, Mason County, IL

The radar

The Lincoln radar (KILX), 26 km from the middle of the area, began a volume at 23:16 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.3 hours before the alert went out and 494 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: 880 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: -113 m²/s²
0-3 km storm-relative helicity: 22 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 May 16, 2:56 PM CDT, 3 hours 20 minutes earlier.

Area forecast discussion, May 16, 2:56 PM CDT, 3 hours 20 minutes before

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Hazardous weather outlook, May 16, 3:01 PM CDT, 3 hours 15 minutes before

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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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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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The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 15, 7:04 PM CDT	Flash Flood Warning	ILX	Champaign, Piatt, Vermilion	6 hr
May 15, 7:04 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Shelby	41 min
May 15, 7:19 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	41 min
May 15, 7:35 PM CDT	Flash Flood Warning	ILX	Fulton, Knox, Marshall, Peoria, Schuyler, Stark and 2 more	4 hr
May 15, 7:50 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	40 min
May 15, 7:57 PM CDT	Flash Flood Warning	ILX	Christian, Moultrie, Shelby	6 hr
May 15, 8:18 PM CDT	Flash Flood Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	6 hr
May 15, 8:48 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Moultrie, Shelby	42 min
May 15, 8:55 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	20 min
May 15, 9:21 PM CDT	Areal Flood Advisory	ILX	Effingham	3 hr
May 15, 9:39 PM CDT	Areal Flood Advisory	ILX	Clay, Jasper, Richland	3 hr
May 15, 9:50 PM CDT	Special Weather Statement	ILX	Clark	40 min
May 15, 10:22 PM CDT	Areal Flood Advisory	ILX	Crawford, Lawrence	5 hr
May 15, 10:44 PM CDT	Areal Flood Warning	ILX	Fulton, Knox, McLean, Marshall, Mason, Peoria and 3 more	6 days
May 15, 11:31 PM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Douglas, Logan, Macon, Mason and 6 more	35 days
May 16, 12:45 AM CDT	Areal Flood Warning	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	146 days
May 16, 12:59 AM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	172 days
May 16, 1:56 AM CDT	Areal Flood Warning	ILX	Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more	186 days
May 16, 2:17 AM CDT	River Flood Warning	ILX	Vermilion	50 hr
May 16, 6:58 AM CDT	River Flood Warning	ILX	Crawford, Jasper	38 hr
May 16, 10:23 AM CDT	River Flood Warning	ILX	Cass, Mason, Menard	6 days
May 16, 11:50 AM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Logan, McLean, Macon, Mason and 6 more	189 days
May 16, 1:03 PM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	224 days

Nearby

Areal Flood Warnings in Illinois, 2009 Every areal flood warning in 2009

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.