Flood Warning Issued for Meramec River at Pacific Affecting Franklin and Jefferson Counties

Alert Details

The National Weather Service in St. Louis MO has issued a Flood Warning for the Meramec River at Pacific. This alert was issued on March 7 at 11:38 AM CST and is effective from this afternoon through Wednesday afternoon, March 11.

Affected Areas

The warning specifically impacts the following regions in Missouri:

• Franklin County
• Jefferson County
• Meramec River at Pacific

What You Should Do

Residents and travelers in the affected areas are advised to take the following precautions:

• Turn around, don’t drown: Do not attempt to drive through flooded roads. Most flood-related deaths occur in vehicles.
• Exercise night caution: Be especially cautious at night when it is significantly harder to recognize the dangers of flooding.
• Avoidance: The recommended response is to avoid flooded areas and monitor local stream information.

Expected Conditions

Minor flooding is forecast for the Meramec River. Key technical details include:

• Flood Stage: 15.0 feet.
• Current Status: As of 10:00 AM CST Saturday, the river stage was 13.6 feet.
• Forecast Peak: The river is expected to rise above flood stage late this afternoon, reaching 16.0 feet just after midnight tonight.
• Impacts: At a stage of 16.0 feet, Route N begins to flood.
• Secondary Rise: After falling toward flood stage on Monday, the river is expected to rise again to 15.5 feet early Tuesday morning before falling below flood stage late Tuesday morning.

Timeline

• Onset: Saturday, March 7 at 5:09 PM CST.
• Peak Impact: Just after midnight tonight (Sunday morning).
• Duration: The warning remains in effect until Wednesday, March 11 at 3:00 PM CDT.