# Minor Flood Warning Issued for Mississippi River at Alton and Grafton - Metro East Star

> The National Weather Service issued a minor flood warning for the Mississippi River at Alton and St. Louis and at Grafton, with crests forecast around April 30 and May 4, 2026. The Illinois River at Hardin is also forecast to rise above flood levels, peaking around May 1.

- Date: 2026-04-29 · published 2026-04-29T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/19896-minor-flood-warning-issued-for-mississippi-river-at-alton-and-grafton-metro
- Commodities: [Barge Freight (St. Louis)](https://feedsoft.ai/c/BARGE.md)

## Why it matters

High water on the Upper Mississippi and Illinois can force lock restrictions and slow barge traffic in the grain-shipping corridor around St. Louis, which tends to lift short-term barge freight costs. The impact is usually brief if the crest passes quickly.

## Read by commodity

- BARGE: bullish ▲

## Sources

- metroeaststar.com: https://metroeaststar.com/2026/04/29/minor-flood-warning-issued-for-mississippi-river-at-alton-and-grafton/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.