Flood Warning Issued for Meramec River at Pacific Affecting Franklin and Jefferson Counties
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
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The National Weather Service has issued a flood warning for the Meramec River at Pacific, with minor flooding expected to impact Franklin and Jefferson counties through Wednesday afternoon.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Eastern Missouri
- Issued
- April 6, 2026
- Issuing authority
- NWS St Louis MO
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Eastern Missouri.
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.
Original source: NOAA Official Notice ↗
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