STORM MODE: More accumulating snow on Monday, coldest temps tonight


KOMU 8 First Alert Weather Team is in Storm mode 3 (on a scale of 0-5) until Tuesday morning (February 16).

This is for both accumulating snow and dangerously cold temperatures.

We track two waves of snow on Monday plus very cold temperatures and then more snow potential in the middle of the week.

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WAVE ONE: EARLY Monday Morning (Storm Mode 3)

This first wave of snow has already ended with about 1-2 “in total accumulation since Sunday evening. Snow drifts of 4-6” have also been measured and can also create an “indefinable road surface”.


Wind cooling of -20 to -30 and air temperatures below zero will combine with the snow to create dangerous conditions.

Vehicles may not start under these conditions due to temperatures below zero.

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The first wave.

WAVE TWO: MANDAY (Storm Mode 3)

Monday morning, after sunrise, have dry time. DON’T LET IT FEEL YOU. More snow is on the way. In fact, there is a good chance that more accumulates on Monday afternoons and evenings than we will see in the early morning hours from the first wave.

The second wave of snow arrives in the middle of the morning on Monday. Snow continues through the afternoon and much of the evening. This will be a somewhat powdery snow and will easily blow in the north wind, which will be sustained 10-15 mph and gusts up to 25 mph. More snowfall is expected because of this.

Visibility is also reduced.

Accumulation begins again immediately and temperatures will be too cold for road treatment other than scraping.

In all, we expect from both waves of snow that much of central Missouri sees 2-5 “accumulation, with more for the southeastern part of the KOMU 8 view area and less for the northern part. St. Louis will see even more due of more humidity and more lift in the atmosphere.

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Wind chill will remain between 10 and 20 degrees below zero throughout the day.


Hypothermia begins when your body temperature drops below 95ºF. If you have been exposed to cold air for a period of time and you have these symptoms, call 911.

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Frostbite can occur within 30 minutes on exposed skin when wind cold approaches -20 ° or below.

Wind Chill Forecast.png


Yes! We are talking about sunshine and a “warming” trend.

Morning temperatures will potentially be the coldest we have seen in the entire winter extravaganza, with lows between 5 and 10 degrees below zero and wind cooling back to 20 to 30 below zero.

A mix of sun and clouds throughout the day helps warm temperatures up to the 10s on Tuesday afternoon. Attenuating winds should also limit one wind cooling factor per day.


Wednesday has a chance to accumulate snow as another system moves through the southern United States. We want high pressure (stable atmosphere) to the northwest, and that can hold most of the snow accumulation in southern Missouri. It’s too early to know for sure. At this point, I expect at least a 2 “poll in central Missouri on Wednesday. Stay tuned.

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If you are ready for warmer weather, there is good news. We should be back above freezing from Saturday – which we have not felt since February 5th. Seasonal temperatures may return as early as next week, with high temperatures again reaching the 40s.

INT FCST PM Extended Forecast.png

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