Alert archive / Illinois / Flash Flood Watches in 2017

Flash Flood Watch 5, NWS Chicago, IL

October 14, 201712 counties in Illinois

NWS Chicago, IL issued this flash flood watch at Oct 14, 2017, 2:55 AM CDT for 12 counties in Illinois. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Oct 14, 2017, 2:55 AM CDT (07:55 UTC)
Expired
Oct 15, 2017, 4:00 AM CDT
In force
25 hr
Issued by
NWS Chicago, IL
Flood severity
None

Counties Boone County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Kane County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, McHenry County, IL, Ogle County, IL, Winnebago County, IL

The radar

The Chicago radar (KLOT), 59 km from the middle of the area, began a volume at 07:54 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 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 flash flood watch went out at Oct 14, 2:50 AM CDT, 5 minutes earlier.

Area forecast discussion, Oct 14, 2:50 AM CDT, 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 14, 3:18 AM CDTGale WatchLOT6 hr
Oct 14, 3:18 AM CDTGale WarningLOT40 hr
Oct 14, 3:18 AM CDTSmall Craft AdvisoryLOT28 hr
Oct 14, 7:55 AM CDTAreal Flood AdvisoryLOTCook, DeKalb, DuPage, Kane, Kendall, LaSalle3 hr
Oct 14, 8:12 AM CDTRiver Flood WarningLOTWill3 days
Oct 14, 8:12 AM CDTRiver Flood WarningLOTCook54 hr
Oct 14, 8:12 AM CDTRiver Flood WarningLOTDuPage49 hr
Oct 14, 8:23 AM CDTRiver Flood AdvisoryLOTCook47 hr
Oct 14, 8:23 AM CDTRiver Flood AdvisoryLOTWill65 hr
Oct 14, 8:23 AM CDTRiver Flood AdvisoryLOTWill47 hr
Oct 14, 8:23 AM CDTRiver Flood AdvisoryLOTKane, Kendall36 hr
Oct 14, 8:23 AM CDTRiver Flood AdvisoryLOTCook3 days
Oct 14, 11:22 AM CDTRiver Flood WarningLOTWill68 hr
Oct 14, 11:22 AM CDTRiver Flood WarningLOTWill3 days
Oct 14, 11:22 AM CDTRiver Flood WarningLOTKane, Kendall44 hr
Oct 14, 11:46 AM CDTRiver Flood AdvisoryLOTLaSalle55 hr
Oct 14, 6:45 PM CDTSpecial Weather StatementLOTLaSalle45 min
Oct 14, 9:16 AM CDTRiver Flood AdvisoryLOTLake36 hr

Nearby

Flash Flood Watches in Illinois, 2017Every flash flood watch in 2017

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.