Flood Warning

NWS St Louis MO · US

Updated

Details

Flood Warning Now In Effect Until Monday Afternoon

Event: Flood Warning
Issued: 2026-09-27 01:42:00 UTC
Onset: 2026-09-27 01:42:00 UTC
Message expires: 2026-09-28 13:45:00 UTC
Expected end: 2026-09-28 21:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Observed
Response: Avoid

Description

Overview

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours.

What

Minor flooding is occurring and minor flooding is forecast.

Where

Mississippi River at Clarksville.

When

Until Monday afternoon.

Impacts

At 25.3 feet, The road to Port Marmac, a riverside community of about 13 homes just south of Clarksville, begins flooding.

Additional details

- At 8:30 PM CDT Saturday the stage was 25.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Saturday was 25.5 feet. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling to 18.7 feet Saturday, October 03. - Flood stage is 25.0 feet.

Instructions

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Affected areas

Calhoun County, IL
Pike County, MO

Public contact

Issuer: NWS St Louis MO
Website: http://www.weather.gov

Message record

Received: 2026-09-27 01:42:42 UTC
Issue to receipt: ~42s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M3G8EPYNDAS2SF0DVRWHDY1Y
Identifier: urn:oid:2.49.0.1.840.0.35310ec6ae40b61f2fa620c979acb740d8515017.001.1
Sender: w-nws.webmaster@noaa.gov
Scope: Public
CAP source: 211803 v2.3.0
Handling codes: IPAWSv1.0
Issuing office: NWS St Louis MO
AWIPS ID: CAPLSX
NWWS sequence: nwws_processor.2277
WMO heading: XOUS53
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 53

References

Identifier: urn:oid:2.49.0.1.840.0.1c58aa4c348f9d7088b05ced2914169d0dd5239b.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 17:14:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.6eabce08a63d99dc9a91dba81a34c8821ca53ec9.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-26 01:50:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.e798a5a94fee0eae2c11a36fb3778e4b5435f3aa.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-26 18:00:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.0460914abcbc13d56db93bd2a4207d60fac1ecde.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 02:55:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8d838d39c373ca961858c7dc75c31508d91e2312.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-24 17:45:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.3fcd6956f22aa6abe15ff3ea3b77e47b80861a5a.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-24 02:05:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.a34c99144c691c91d914a70d1cf8238934859904.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-23 17:06:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8fe949ec5217f832497d8e294d5d734b414e723b.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-23 02:50:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.a1b16de6cf7028f823f1524b17e40688b47de376.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 16:55:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.05e7edfc5f88abfad026f7bceca55b91d6c46d80.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 02:48:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.fc8a11ba326c79f672df73360dba31f069465968.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 17:23:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.e06ffb7641854d68b5c353b32b438a353657b64a.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 02:21:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.69f21065f710f8bae810d299e7ce775146e3c0f9.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 16:48:00 UTC

Event codes

Name	Value
SAME	FLS
NationalWeatherService	FLW

Parameters

Name	Value
AWIPSidentifier	FLSLSX
WMOidentifier	WGUS83 KLSX 270142
NWSheadline	FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
EAS-ORG	WXR
VTEC	/O.EXT.KLSX.FL.W.0110.000000T0000Z-260928T2100Z/
eventEndingTime	2026-09-28T16:00:00-05:00
BLOCKCHANNEL	CMAS
expiredReferences	w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.0460914abcbc13d56db93bd2a4207d60fac1ecde.003.1,2026-09-24T21:55:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8d838d39c373ca961858c7dc75c31508d91e2312.003.1,2026-09-24T12:45:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.3fcd6956f22aa6abe15ff3ea3b77e47b80861a5a.001.1,2026-09-23T21:05:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.a34c99144c691c91d914a70d1cf8238934859904.001.1,2026-09-23T12:06:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8fe949ec5217f832497d8e294d5d734b414e723b.001.1,2026-09-22T21:50:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.a1b16de6cf7028f823f1524b17e40688b47de376.001.1,2026-09-22T11:55:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.05e7edfc5f88abfad026f7bceca55b91d6c46d80.001.1,2026-09-21T21:48:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.fc8a11ba326c79f672df73360dba31f069465968.002.1,2026-09-21T12:23:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.e06ffb7641854d68b5c353b32b438a353657b64a.001.1,2026-09-20T21:21:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.69f21065f710f8bae810d299e7ce775146e3c0f9.002.1,2026-09-20T11:48:00-05:00

Locations

Location data

Calhoun County, IL
Pike County, MO

Name	Value
SAME	017013
SAME	029163
UGC	ILC013
UGC	MOC163

Polygons: 39.39,-90.97 39.46,-90.88 39.4,-90.81 39.32,-90.75 39.25,-90.71 39.25,-90.83 39.3,-90.9 39.32,-90.88 39.36,-90.92 39.35,-90.95 39.39,-90.97