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St. Louis Under Level-4 Risk, Tornadoes, Flood Watch

4/28/2026

36 8 Full Breakdown

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**St. Louis Tornado Risk**

Storm Prediction Center upgraded St. Louis area to Level 4 moderate risk, one of highest categories for Monday.
National Weather Service issued tornado warnings for St. Louis, St. Charles, Madison, Jersey, Calhoun counties on April 27, 2026, and remain active.
A flood watch also covers the same counties through 9 p.m. on Monday.
Supercells may produce EF3-plus tornadoes, with peak danger 3 p.m.–8 p.m., risking significant traffic backups.

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St. Louis Closes

St. Louis schools and the zoo are shutting down early Monday as officials brace for a moderate-risk severe weather outbreak.
The Storm Prediction Center upgraded St. Louis to Level 4 moderate risk, warning of EF3-plus tornadoes, large hail and damaging winds.
St. Louis Public Schools will dismiss students two hours early and cancel all after-school activities.
St. Louis City Hall will close at 2 p.m., keeping only essential operations open.

History

Historical Context

On May 27 1896 a violent F4 tornado ripped through St. Louis and East St. Louis, killing 255 people and causing over $10 million in damage—the third-deadliest and costliest U.S. tornado at the time. The disaster prompted the first federal disaster protocols, shaping today’s Storm Prediction Center and National Weather Service alerts that aim to close schools and city halls early.

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**St. Louis Tornado Risk**

Storm Prediction Center upgraded St. Louis area to Level 4 moderate risk, one of highest categories for Monday.
National Weather Service issued tornado warnings for St. Louis, St. Charles, Madison, Jersey, Calhoun counties on April 27, 2026, and remain active.
A flood watch also covers the same counties through 9 p.m. on Monday.
Supercells may produce EF3-plus tornadoes, with peak danger 3 p.m.–8 p.m., risking significant traffic backups.

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