Alert archive / Illinois / River Flood Warnings in 2024

River Flood Warning 117, NWS St. Louis, MO

July 4, 2024Monroe County, Saint Clair County, Illinois

NWS St. Louis, MO issued this river flood warning at Jul 4, 2024, 1:41 PM CDT for Monroe County, Saint Clair County, Illinois. It took effect at Jul 6, 2024, 9:40 AM CDT. It was in force for 19 days.

The area

The counties it named.

The facts

Issued: Jul 4, 2024, 1:41 PM CDT (18:41 UTC)
In effect from: Jul 6, 2024, 9:40 AM CDT
Expired: Jul 25, 2024, 1:41 PM CDT
In force: 19 days
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Monroe County, IL, Saint Clair County, IL

The radar

The St Louis radar (KLSX), 66 km from the middle of the area, began a volume at 18:44 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 Kaskaskia River at New Athens (NASI2).

Action stage: 77 ft
Minor stage: 79 ft
Moderate stage: 82 ft
Major stage: 85 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05595000, 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 St. Louis, MO wrote its last area forecast discussion before this river flood warning went out at Jul 4, 12:58 PM CDT, 43 minutes earlier.

Area forecast discussion, Jul 4, 12:58 PM CDT, 43 minutes before

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Hazardous weather outlook, Jul 4, 5:06 AM CDT, 8 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service St Louis MO
506 AM CDT Thu Jul 4 2024

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-051015-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
506 AM CDT Thu Jul 4 2024

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Today and tonight.

Thunderstorms will likely produce heavy rain that could flash
flooding through this morning before moving out of the area. A Flash
Flood Watch is in effect for much of the area through late tonight.

Thunderstorms are likely again late this afternoon and evening. A few
of these storms could be severe weather capable of producing mainly
damaging winds and heavy rainfall. A brief tornado and large hail is
also possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a chance of thunderstorms from Sunday through Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

Britt

In the hours before

Local storm report, Jul 4, 8:17 AM CDT, 5 hours 24 minutes before

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Local storm report, Jul 4, 8:54 AM CDT, 4 hours 47 minutes before

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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 9:38 PM CDT	River Flood Warning	LSX	Lincoln	44 hr
Jul 3, 10:45 PM CDT	River Flood Warning	LSX	Cole, Osage	7 days
Jul 4, 1:18 AM CDT	Areal Flood Advisory	LSX	Callaway, Cole, Gasconade, Osage	112 min
Jul 4, 2:36 AM CDT	Heat Advisory	LSX	Iron, Madison, Reynolds	18 hr
Jul 4, 2:44 AM CDT	Areal Flood Advisory	LSX	Audrain, Boone, Callaway, Cole, Moniteau, Montgomery	2 hr
Jul 4, 3:05 AM CDT	Areal Flood Advisory	LSX	Franklin, Saint Charles, Saint Louis, Warren, City of Saint Louis	5 hr
Jul 4, 3:10 AM CDT	Flash Flood Warning	LSX	Cole, Gasconade, Osage	5 hr
Jul 4, 4:16 AM CDT	Flash Flood Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis	4 hr
Jul 4, 4:54 AM CDT	Flash Flood Warning	LSX	Audrain, Boone, Callaway, Cole, Moniteau, Montgomery	3 hr
Jul 4, 5:11 AM CDT	River Flood Warning	LSX	Osage	9 hr
Jul 4, 7:40 AM CDT	Areal Flood Warning	LSX	Boone, Callaway	95 min
Jul 4, 8:04 AM CDT	River Flood Warning	LSX	Cole	36 hr
Jul 4, 8:06 AM CDT	Areal Flood Warning	LSX	Jefferson, Saint Louis, City of Saint Louis	84 min
Jul 4, 8:11 AM CDT	River Flood Warning	LSX	Boone	12 hr
Jul 4, 5:13 PM CDT	River Flood Warning	LSX	Lincoln	47 hr
Jul 4, 5:18 PM CDT	River Flood Warning	LSX	Saint Charles	11 hr
Jul 4, 5:03 AM CDT	Areal Flood Advisory	LSX	Clinton, Madison, Monroe, Saint Clair, Washington	45 min
Jul 4, 5:48 AM CDT	Flash Flood Warning	LSX	Clinton, Madison, Monroe, Saint Clair, Washington	3 hr

Nearby

River Flood Warnings in Illinois, 2024 Every river flood warning in 2024

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.