Flood Warning Issued for Meramec River in St. Louis and Jefferson Counties Through Tuesday

Alert Details

The National Weather Service in St. Louis has issued a Flood Warning for the Meramec River. This alert, classified as a severe weather event by the NWS, is in response to forecast minor flooding along the river basin.

Affected Areas

The warning covers the following geographic regions in Missouri:

• Counties: Jefferson and St. Louis.
• Specific Locations: Meramec River near Eureka and the Meramec River at Valley Park.

What You Should Do

Residents in the affected areas should follow these safety instructions:

• Turn around, don’t drown: Do not attempt to drive through flooded roads. Most flood-related fatalities occur in vehicles.
• Avoid Recreational Areas: Stay away from riverbanks and parks located in the flood zone.
• Monitor Conditions: Stay tuned to local weather updates and stream information provided by the NWS.

Expected Conditions

Minor flooding is forecast based on observed and predicted precipitation over the next 48 hours.

• Current Stage: The river was at 10.6 feet as of 6:00 PM CST Friday.
• Flood Stage: 18.0 feet.
• Forecast Crest: The river is expected to rise to a crest of 19.7 feet.
• Impacts: At 19.5 feet, flooding will impact Buder Park and the recreation park at the water plant.

Timeline

• Alert Effective: Issued Friday evening, March 6.
• Onset: The river is expected to rise above flood stage late Saturday evening, March 7.
• Crest: Peak levels are forecast for early Sunday afternoon.
• Duration: The river is expected to fall below flood stage early Monday morning, with the warning officially expiring at 7:00 AM CDT on Tuesday, March 10.