Missouri Weather Alert Today: Thunderstorms in St. Louis May Disrupt Early Thanksgiving Travel

St. Louis, Missouri — Travelers heading out early for Thanksgiving may face delays today as strong thunderstorms build across the St. Louis region. Weather experts are warning that the storm system moving through Missouri could create hazardous travel conditions right as holiday traffic picks up.

Thunderstorms Expected Through the Day

A surge of warm, humid air clashing with an approaching cold front is expected to trigger thunderstorms throughout the day. The most active period is likely during the afternoon and early evening, when heavy rain, lightning, and gusty winds may develop quickly.

Forecasters say wind gusts could become strong enough to affect high-profile vehicles, reduce visibility on major highways, and briefly slow air traffic operations.

Impact on Holiday Travel

With thousands of residents beginning Thanksgiving travel, even moderate storms can cause noticeable interruptions. Drivers may encounter:

• Sudden heavy rainfall is reducing visibility

• Wet, slick roads lead to slower speeds

• Traffic congestion around key St. Louis highways

• Longer airport check-in and security lines due to weather-related delays

Airports may need to pause ground operations during periods of lightning or strong wind, increasing the likelihood of delays for departing flights.

Roads and Areas of Concern

Travelers should be especially cautious along major interstate routes around St. Louis, including:

• I-44

• I-70

• I-64

• I-55

Bridges, elevated ramps, and low-lying areas may experience quick pooling of rainwater, making driving more dangerous during peak storm activity.

Tips for Safe and Smooth Travel

To help avoid delays and ensure safe movement across the region, experts recommend:

• Leaving earlier than planned to avoid driving at the height of the storms

• Checking weather and traffic updates before heading out

• Turning on headlights during rain and keeping extra distance between vehicles

• Ensuring wiper blades, brakes, and tires are in good condition

• Preparing for longer airport wait times if flying today

Small adjustments in timing could make a big difference in avoiding storm impacts.

What to Expect After Today

While storms are expected to continue into the evening, conditions should gradually calm by late tonight. The rest of the Thanksgiving weekend is expected to trend drier and cooler, creating more favorable conditions for return travel.

As Missouri enters one of the busiest travel weeks of the year, today’s thunderstorms pose a real challenge for St. Louis residents and visitors. With careful planning, patience, and awareness of changing weather conditions, travelers can still begin their holiday journeys safely and on time.