Flood Warning Issued for Meramec River at Fenton Affecting Jefferson and St. Louis Counties

Alert Details

The National Weather Service in St. Louis has issued a Flood Warning for the Meramec River at Fenton. This alert was issued on March 7 at 10:50 AM CST and is currently in effect, with the specific flood event expected to begin Sunday afternoon.

Affected Areas

The warning specifically covers the Meramec River at Fenton, impacting the following geographic regions in Missouri:

• Jefferson County
• St. Louis County

What You Should Do

Residents and travelers in the affected areas are advised to follow the safety slogan: “Turn around, don’t drown” when encountering flooded roads. Most flood-related deaths occur in vehicles. Be especially cautious at night when it is significantly harder to recognize the dangers of rising water. Additional stream information is available via the NWS water portal.

Expected Conditions

Minor flooding is forecast for the Meramec River. As of 10:15 AM CST on Saturday, the river stage was measured at 18.1 feet. The river is expected to rise above the flood stage of 23.0 feet early Sunday afternoon, reaching a projected crest of 23.4 feet by Sunday evening.

Specific impacts include the following: at 22.9 feet, the entire boat ramp path at Minnie Ha Ha Park will be submerged. Forecasts are based on observed and predicted precipitation for the next 48 hours.

Timeline

The Flood Warning is effective from Sunday afternoon, March 8, through Tuesday afternoon, March 10 at 4:00 PM CDT. The river is expected to fall back below flood stage late Monday morning.