St. Louis Weather:

ST. LOUIS, Mo. – Hold on to your hats, lawn furniture, trashcans, over the next two days. Wind and storms are the big concerns, especially on Wednesday.

The highest potential for severe weather with this outbreak will once again be well south of St. Louis and that’s where the greatest potential for tornadoes and hail will reside.

The number one risk (but not the only risk) will be from damaging winds of 50-70 mph in the strongest of storms within the line. There is very little concern with hail. Heavy rain, will be a problem as 1-2 inches is expected and that could lead to short-term run-off issues and high water in poorly drained locations.

A Tornado Watch is in effect until 1:00 pm for counties just southwest of our viewing area. The line of storms will reorganize over the next several hours before making a strong push into eastern and southeastern Missouri late this morning.

There is a lot of wind energy in the atmosphere for storms Wednesday, but not a lot of instability. This should make the storm threat much more focused on bursts of strong, intense winds and much less on tornadoes and hail.

Some spots may see gusts approach 50 mph during the morning before thunderstorms arrive. Rain will be heavy at times, with a slight risk for severe storms. The main threat will be damaging winds.

Timeline for severe weather near St. Louis:

  • 6:00 am – 10:00 am Strong winds in counties west far west of St. Louis
  • 10:00 am – 2:00 pm Strong thunderstorms near St. Louis.
  • 2:00 pm – 5:00 pm – The storms continue to move from the Metro East to south-central Illinois.
  • Missouri Severe Weather Risk for Wednesday
  • Severe Weather Risk Late Tuesday in Missouri
  • Severe Weather Timeline for Wednesday

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The storm threat will ramp up just after sunrise for counties far west of St. Louis. Strong wind gusts are expected between 6 a.m. and 10 a.m. Areas near St. Louis may see strong thunderstorms between 10 a.m. and 2:00 p.m. The storm threat will then shift east of the metro during the afternoon, with rain tapering off by the evening.