Alert archive / Illinois / Flash Flood Warnings in 2022

Flash Flood Warning 8, NWS Chicago, IL

July 23, 2022Lake County, McHenry County, Illinois

NWS Chicago, IL issued this flash flood warning at Jul 23, 2022, 2:30 AM CDT for Lake County, McHenry 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 23, 2022, 2:30 AM CDT (07:30 UTC)
Expired: Jul 23, 2022, 8:30 AM CDT
In force: 6 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: None

Counties Lake County, IL, McHenry County, IL

The radar

The Milwaukee radar (KMKX), 77 km from the middle of the area, began a volume at 07:32 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this flash flood warning went out at Jul 22, 3:49 PM CDT, 10 hours 41 minutes earlier.

Area forecast discussion, Jul 22, 3:49 PM CDT, 10 hours 41 minutes before

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Hazardous weather outlook, Jul 22, 3:30 PM CDT, 11 hours before

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</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 Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 11:11 PM CDT	Special Weather Statement	LOT	Cook	19 min
Jul 22, 11:24 PM CDT	Special Marine Warning	LOT		66 min
Jul 22, 11:41 PM CDT	Special Weather Statement	LOT	Boone	34 min
Jul 22, 11:56 PM CDT	Severe Thunderstorm Warning	LOT	McHenry	49 min
Jul 23, 12:29 AM CDT	Special Marine Warning	LOT		91 min
Jul 23, 12:33 AM CDT	Severe Thunderstorm Warning	LOT	Lake	57 min
Jul 23, 1:23 AM CDT	Severe Thunderstorm Warning	LOT	Lake	52 min
Jul 23, 1:58 AM CDT	Areal Flood Advisory	LOT	Lake, McHenry	5 hr
Jul 23, 2:00 AM CDT	Special Marine Warning	LOT		90 min
Jul 23, 2:52 AM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more	9 hr
Jul 23, 3:21 AM CDT	Special Marine Warning	LOT		114 min
Jul 23, 4:09 AM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	66 min
Jul 23, 4:22 AM CDT	Special Marine Warning	LOT		113 min
Jul 23, 4:49 AM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Lee, Ogle	71 min
Jul 23, 4:54 AM CDT	Special Marine Warning	LOT		81 min
Jul 23, 4:56 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane	64 min
Jul 23, 5:14 AM CDT	Special Weather Statement	LOT	DuPage, Kane, Kendall	31 min
Jul 23, 5:15 AM CDT	Areal Flood Advisory	LOT	Cook, DuPage, Kane	3 hr
Jul 23, 5:29 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	76 min
Jul 23, 5:32 AM CDT	Severe Thunderstorm Warning	LOT	Kane, Kendall	27 min
Jul 23, 5:35 AM CDT	Flash Flood Warning Considerable damage threat	LOT	Lake	5 hr
Jul 23, 5:47 AM CDT	Tornado Warning	LOT	Cook, Will	28 min
Jul 23, 6:05 AM CDT	Tornado Warning Tornado observed	LOT	Will	25 min
Jul 23, 6:19 AM CDT	Special Marine Warning	LOT		86 min
Jul 23, 6:20 AM CDT	Severe Thunderstorm Warning	LOT	Kankakee	55 min
Jul 23, 6:35 AM CDT	Special Weather Statement	LOT	LaSalle	25 min
Jul 23, 6:42 AM CDT	Severe Thunderstorm Warning	LOT	LaSalle	34 min
Jul 23, 6:51 AM CDT	Special Weather Statement	LOT	Ford, Iroquois	54 min
Jul 23, 7:08 AM CDT	Special Weather Statement	LOT	LaSalle	37 min
Jul 23, 7:20 AM CDT	Special Weather Statement	LOT	Ogle	25 min
Jul 23, 7:44 AM CDT	River Flood Warning	LOT	Cook, Lake	27 hr
Jul 23, 7:44 AM CDT	River Flood Warning	LOT	Cook	34 hr
Jul 23, 7:47 AM CDT	Special Weather Statement	LOT	Lee	43 min
Jul 23, 8:12 AM CDT	Special Weather Statement	LOT	Kankakee	33 min
Jul 23, 8:23 AM CDT	Areal Flood Advisory	LOT	Iroquois	3 hr
Jul 23, 8:56 AM CDT	Special Weather Statement	LOT	DeKalb	49 min
Jul 23, 9:01 AM CDT	Special Weather Statement	LOT	Kankakee	29 min
Jul 23, 9:08 AM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane, Kendall	52 min
Jul 23, 9:12 AM CDT	Flash Flood Warning	LOT	Iroquois	3 hr
Jul 23, 9:58 AM CDT	Special Weather Statement	LOT	DuPage	47 min
Jul 23, 10:01 AM CDT	Special Weather Statement	LOT	Kendall	44 min
Jul 23, 10:10 AM CDT	Special Marine Warning	LOT		82 min
Jul 23, 10:15 AM CDT	Areal Flood Advisory	LOT	Cook, DuPage, Kane, Kendall, Will	3 hr
Jul 23, 10:22 AM CDT	Severe Thunderstorm Warning	LOT	DuPage, Will	53 min
Jul 23, 10:49 AM CDT	Special Weather Statement	LOT	Iroquois, Kankakee, Will	41 min
Jul 23, 10:57 AM CDT	Areal Flood Warning	LOT	Lake	3 hr
Jul 23, 11:46 AM CDT	Areal Flood Advisory	LOT	Iroquois, Kankakee	3 hr
Jul 23, 12:23 PM CDT	Flash Flood Warning	LOT	Iroquois	6 hr
Jul 23, 1:14 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	61 min
Jul 23, 1:27 PM CDT	Areal Flood Warning	LOT	Cook, Lake	6 hr
Jul 23, 1:32 PM CDT	Tornado Warning	LOT	Livingston	29 min
Jul 23, 1:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Ford	75 min
Jul 23, 2:27 PM CDT	Areal Flood Advisory	LOT	Ford, Livingston	4 hr
Jul 23, 2:28 PM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 5 more	20 hr
Jul 23, 2:41 PM CDT	Flash Flood Warning	LOT	Ford	3 hr
Jul 23, 2:57 PM CDT	Severe Thunderstorm Warning	LOT	Ford	33 min
Jul 23, 3:19 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	41 min
Jul 23, 3:28 PM CDT	Flash Flood Warning	LOT	Livingston	2 hr
Jul 23, 5:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	LaSalle, Livingston	33 min
Jul 23, 4:58 AM CDT	Severe Thunderstorm Warning	LOT	Porter	62 min
Jul 23, 6:46 AM CDT	Severe Thunderstorm Warning	LOT	Benton, Jasper, Newton	59 min
Jul 23, 7:46 AM CDT	Special Weather Statement	LOT	Benton	44 min
Jul 23, 8:35 AM CDT	Special Weather Statement	LOT	Benton	40 min
Jul 23, 11:37 AM CDT	Severe Thunderstorm Warning	LOT	Jasper	23 min

Nearby

Flash Flood Warnings in Illinois, 2022 Every flash flood warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.