Alert archive / Illinois / River Flood Advisories in 2021
River Flood Advisory 30, NWS Chicago, IL
NWS Chicago, IL issued this river flood advisory at Jun 30, 2021, 10:08 PM CDT for LaSalle County, Illinois. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Jun 30, 2021, 10:08 PM CDT (03:08 UTC)
- Expired
- Jul 1, 2021, 1:55 PM CDT
- In force
- 16 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
County LaSalle County, IL
The radar
The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 03:10 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 Vermilion River (N-IL) near Leonore (LNRI2). The gauge peaked at 16.13 ft at Jun 29, 2021, 10:00 PM CDT.
- Action stage
- 15.5 ft
- Minor stage
- 16 ft
- Moderate stage
- 21 ft
- Major stage
- 26 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05555300, 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 advisory 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 advisory went out at Jun 30, 9:16 PM CDT, 52 minutes earlier.
Area forecast discussion, Jun 30, 9:16 PM CDT, 52 minutes before
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</html>Hazardous weather outlook, Jun 30, 9:23 PM CDT, 45 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Chicago/Romeoville IL 923 PM CDT Wed Jun 30 2021 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-020230- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 923 PM CDT Wed Jun 30 2021 /1023 PM EDT Wed Jun 30 2021/ This Hazardous Weather Outlook is for portions of North Central Illinois...Northeast Illinois and Northwest Indiana. .DAY ONE...Rest of Tonight. Weather hazards expected... Limited Thunderstorm Risk. DISCUSSION... Isolated non severe thunderstorms are possible. .DAYS TWO THROUGH SEVEN...Thursday through Monday. Thursday... Limited Thunderstorm Risk. High Swim Risk at Lake Michigan beaches. Friday... High Swim Risk at Lake Michigan beaches. Monday and Tuesday... Limited Thunderstorm Risk. DISCUSSION: High wave action and strong currents will cause dangerous swimming conditions at Lake Michigan beaches Thursday through Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the east southeast at 15 to 25 mph. LMZ740>745-020230- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 923 PM CDT Wed Jun 30 2021 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Rest of Tonight. Weather hazards expected... Limited Thunderstorm Risk. .DAYS TWO THROUGH SEVEN...Thursday through Monday. Thursday and Friday... Hazardous conditions for small craft are likely. Monday and Tuesday... Limited Thunderstorm Risk. MTF Visit us at http://weather.gov/chicago Follow us on Facebook, Twitter, and Youtube at: www.facebook.com/nwschicago www.twitter.com/nwschicago www.youtube.com/nwschicago
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 11:13 PM CDT | Special Marine Warning | LOT | 62 min | |
| Jul 1, 12:15 AM CDT | Special Marine Warning | LOT | 45 min |
Nearby
River Flood Advisories in Illinois, 2021Every river flood advisory in 2021
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.