Alert archive / Illinois / River Flood Watches in 2015

River Flood Watch 21, NWS Chicago, IL

December 22, 2015Lake County, Illinois

NWS Chicago, IL issued this river flood watch at Dec 22, 2015, 9:35 AM CST for Lake County, Illinois. It took effect at Dec 25, 2015, 6:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 22, 2015, 9:35 AM CST (15:35 UTC)
In effect from: Dec 25, 2015, 6:00 AM CST
Expired: Dec 24, 2015, 10:31 AM CST
In force
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: None

County Lake County, IL

The radar

The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 15:39 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 river

Written for the forecast point Des Plaines River near Russell (RUSI2). The gauge peaked at 6.69 ft at Dec 21, 2015, 9:00 AM CST.

Action stage: 6.5 ft
Minor stage: 7 ft
Moderate stage: 9 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05527800, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood watch 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 river flood watch went out at Dec 22, 8:03 AM CST, 1 hour 32 minutes earlier.

Area forecast discussion, Dec 22, 8:03 AM CST, 1 hour 32 minutes before

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Hazardous weather outlook, Dec 22, 3:34 AM CST, 6 hours 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 21, 8:45 PM CST	River Flood Advisory	LOT	LaSalle	5 days
Dec 21, 8:49 PM CST	River Flood Advisory	LOT	Ogle	7 days
Dec 21, 9:06 PM CST	River Flood Warning	LOT	Bureau, LaSalle, Putnam	27 days
Dec 21, 9:10 PM CST	River Flood Advisory	LOT	LaSalle	6 days
Dec 22, 9:35 AM CST	River Flood Watch	LOT	Lake	5 days
Dec 22, 9:35 AM CST	River Flood Watch	LOT	Kane, McHenry	35 hr
Dec 22, 9:35 AM CST	River Flood Watch	LOT	Kane, Kendall	4 days
Dec 22, 9:35 AM CST	River Flood Watch	LOT	LaSalle	3 days
Dec 22, 9:43 AM CST	River Flood Advisory	LOT	Winnebago	7 days
Dec 22, 9:43 AM CST	River Flood Advisory	LOT	Lee	6 days
Dec 22, 3:07 PM CST	Gale Watch	LOT		13 hr
Dec 22, 3:07 PM CST	Small Craft Advisory	LOT		27 hr

Nearby

River Flood Watches in Illinois, 2015 Every river flood watch 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.