Alert archive / Missouri / River Flood Warnings in 2026

River Flood Warning 34, NWS St. Louis, MO

April 19, 2026Saint Charles County, Missouri; Jersey County, Illinois

NWS St. Louis, MO issued this river flood warning at Apr 19, 2026, 11:38 AM CDT for Saint Charles County, Missouri; Jersey County, Illinois. It took effect at Apr 19, 2026, 7:00 PM CDT. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Apr 19, 2026, 11:38 AM CDT (16:38 UTC)
In effect from: Apr 19, 2026, 7:00 PM CDT
Expired: May 10, 2026, 11:38 AM CDT
In force: 21 days
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Jersey County, IL, Saint Charles County, MO

The radar

The St Louis radar (KLSX), 30 km from the middle of the area, began a volume at 16:41 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 Mississippi River at Grafton (GRFI2).

Action stage: 18 ft
Minor stage: 20 ft
Moderate stage: 24 ft
Major stage: 29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05587450, 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 Apr 19, 5:54 AM CDT, 5 hours 44 minutes earlier.

Area forecast discussion, Apr 19, 5:54 AM CDT, 5 hours 44 minutes before

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Hazardous weather outlook, Apr 19, 2:40 AM CDT, 8 hours 58 minutes before

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In the hours before

Local storm report, Apr 19, 8:22 AM CDT, 3 hours 16 minutes before

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Local storm report, Apr 19, 8:41 AM CDT, 2 hours 57 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Nearby

River Flood Warnings in Missouri, 2026 River Flood Warnings in Illinois, 2026 Every river flood warning in 2026

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.