Alert archive / Illinois / River Flood Warnings in 2017

River Flood Warning 93, NWS Chicago, IL

July 10, 2017Lake County, Illinois

NWS Chicago, IL issued this river flood warning at Jul 10, 2017, 9:52 AM CDT for Lake County, Illinois. It took effect at Jul 10, 2017, 9:00 PM CDT. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued: Jul 10, 2017, 9:52 AM CDT (14:52 UTC)
In effect from: Jul 10, 2017, 9:00 PM CDT
Expired: Jul 12, 2017, 1:00 AM CDT
In force: 28 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: Minor

County Lake County, IL

The radar

The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 14:53 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 Gurnee (GUNI2). The gauge peaked at 10.67 ft at Jul 13, 2017, 1:00 AM CDT.

Action stage: 6.5 ft
Minor stage: 7 ft
Moderate stage: 9 ft
Major stage: 11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05528000, 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 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 river flood warning went out at Jul 10, 7:48 AM CDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jul 10, 7:48 AM CDT, 2 hours 4 minutes before

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Hazardous weather outlook, Jul 10, 3:54 AM CDT, 5 hours 58 minutes before

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In the hours before

Local storm report, Jul 10, 6:32 AM CDT, 3 hours 20 minutes before

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Special weather statement, Jul 10, 7:38 AM CDT, 2 hours 14 minutes before

Special Weather Statement
National Weather Service Chicago/Romeoville Il
738 AM CDT MON JUL 10 2017

ILZ013-014-101345-
Cook IL-DuPage IL-
738 AM CDT MON JUL 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DUPAGE AND NORTHEASTERN
COOK COUNTIES UNTIL 845 AM CDT...

At 737 AM CDT, Doppler radar was tracking an area of strong winds
over Schiller Park, or over Franklin Park, moving southeast at 15
mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Chicago, Cicero, Evanston, Skokie, Des Plaines, Oak Lawn, Berwyn, Oak
Park, Downers Grove, Elmhurst, Lombard, Park Ridge, Addison, Glen
Ellyn, Westmont, Maywood, Morton Grove, Roselle, Villa Park and
Brookfield.

LAT...LON 4172 8799 4199 8808 4204 8767 4198 8765
      4196 8763 4196 8764 4190 8762 4189 8761
      4188 8762 4187 8761 4185 8761 4178 8757
      4178 8756 4176 8756 4175 8753 4173 8753
TIME...MOT...LOC 1237Z 328DEG 19KT 4196 8789

KREIN

Special weather statement, Jul 10, 7:49 AM CDT, 2 hours 3 minutes before

Special Weather Statement
National Weather Service Chicago/Romeoville Il
749 AM CDT MON JUL 10 2017

ILZ013-014-022-101345-
Cook IL-DuPage IL-Will IL-
749 AM CDT MON JUL 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WILL...DUPAGE AND
EASTERN COOK COUNTIES UNTIL 845 AM CDT...

At 746 AM CDT, Doppler radar was tracking an area of strong winds
over portions of the Chicago Metro Area, moving east at 15 mph.

Wind gusts up to 50 mph will be possible with this system.

Locations impacted include...
Chicago, Aurora, Joliet, Naperville, Cicero, Hammond, Bolingbrook,
Skokie, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak
Park, Downers Grove, Elmhurst, Lombard, Carol Stream, Romeoville and
Plainfield.

Some wind damage is also possible to mobile homes, roofs, trees and
outbuildings.

LAT...LON 4151 8825 4172 8826 4197 8808 4202 8766
      4198 8765 4196 8763 4196 8764 4190 8762
      4189 8761 4188 8762 4183 8760 4172 8752
      4159 8752
TIME...MOT...LOC 1246Z 272DEG 14KT 4177 8794

KREIN

Special weather statement, Jul 10, 8:27 AM CDT, 1 hour 25 minutes before

Special Weather Statement
National Weather Service Chicago/Romeoville Il
827 AM CDT MON JUL 10 2017

ILZ014-022-023-INZ001-101430-
Cook IL-Will IL-Kankakee IL-Lake IN-
827 AM CDT MON JUL 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL WILL...NORTHEASTERN
KANKAKEE...SOUTHEASTERN COOK AND SOUTHERN LAKE COUNTIES UNTIL 930 AM
CDT...

At 826 AM CDT, Doppler radar was tracking an area of strong winds
over Frankfort, moving southeast at 35 mph.

Winds of 40 to 50 mph will be possible. Some wind damage is also
possible to mobile homes, roofs, trees and outbuildings.

Locations impacted include...
Joliet, Orland Park, Tinley Park, Merrillville, Chicago Heights,
Schererville, Lansing, Crown Point, New Lenox, Munster, Park Forest,
Matteson, Mokena, Frankfort, Griffith, St. John, Midlothian, Cedar
Lake, Steger and Flossmoor.

Including the following interstates...
 I-57 between mile markers 324 and 349.
 I-80 between mile markers 135 and 155.
 I-355 near mile marker 1.
 Indiana I-65 between mile markers 238 and 249.

LAT...LON 4162 8770 4153 8746 4134 8722 4118 8736
      4118 8751 4131 8795 4153 8807
TIME...MOT...LOC 1326Z 306DEG 31KT 4149 8787

DONOFRIO

Local storm report, Jul 10, 8:48 AM CDT, 1 hour 4 minutes before

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Local storm report, Jul 10, 8:52 AM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
852 AM CDT MON JUL 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0758 AM     NON-TSTM WND GST 4 NE CHICAGO            41.92N 87.57W
07/10/2017  M52 MPH          LMZ741             IL   C-MAN STATION

            WAKE LOW WIND GUST RECORDED AT THE HARRISON-DEVER CRIB.

&&

RC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:19 PM CDT	Special Weather Statement	LOT	Kankakee	56 min
Jul 10, 1:25 AM CDT	Special Weather Statement	LOT	McHenry	35 min
Jul 10, 1:56 AM CDT	Special Weather Statement	LOT	Lake, McHenry	64 min
Jul 10, 3:16 AM CDT	Special Weather Statement	LOT	Lake, McHenry	59 min
Jul 10, 7:38 AM CDT	Special Weather Statement	LOT	Cook	67 min
Jul 10, 7:48 AM CDT	Special Marine Warning	LOT		87 min
Jul 10, 7:49 AM CDT	Special Weather Statement	LOT	Cook, DuPage	56 min
Jul 10, 8:27 AM CDT	Special Weather Statement	LOT	Will	63 min
Jul 10, 10:00 AM CDT	River Flood Watch	LOT	Lake	24 hr
Jul 10, 10:05 AM CDT	River Flood Advisory	LOT	Lake	54 hr

Nearby

River Flood Warnings in Illinois, 2017 Every river flood warning 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; the gauge from the NWS water service and the USGS.