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White Christmas and Cold Intensification

Merry Christmas bloggers,

Snowfall amounts were as predicted, 1/2″ to 1″ with some locations just over 1″.  Trenton, MO received 3.2″ and this is where we expected the heavier snow. Now, did the snowflake contest end? Remember, there needs to be 1″ of snow at 41 Action News as measured by one of our meteorologists.   I was the meteorologist with the ruler at the station and well…

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We measured 0.8″ of snow here on the Plaza, so the Snowflake Contest rolls on. Gary measured 1.3″ in Overland Park and the National Weather Service measured 1.1″ in Pleasant Hill. So, what is going on? Well take a look at these radar images and it explains why the Plaza had about 0.5″ less.

Around 350 AM as the main heavy band of snow was moving across the city you can see the heavier snow is split around the Plaza with heavier snow showers from southern Platte/Clay and southern Johnson counties.

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Then, by 405 AM the heavier snow connected, but east of the Plaza, so this really shows why the Plaza had a bit less. Also, the snow was moving east at 70-80 mph, if it was moving at 60 mph then the Plaza would have had the extra 0.5″ regardless.

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Now, we turn our attention to an increase in the cold and new small snow chances.

SUNDAY AFTERNOON: It will be sunny and cold with highs in the 20s. Wind chills will be in the teens.

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CHRISTMAS NIGHT: The kids should be sound asleep as Santa arrives in KC. Temperatures will be in the teens, so Santa will feel right at home. The wind will be west at 5-15 mph.

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CHRISTMAS MORNING: This will be a great morning to stay inside and open presents as it will be mostly cloudy and dry with temperatures 10° to 15° with a 5-15 mph wind and wind chill values near zero.

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CHRISTMAS AFTERNOON: A legitimate Arctic front will be moving across the region. We will see highs around 30°, but look at Omaha, 14°, how about a high of -3° in Rochester, MN. There will be many clouds, but dry.

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TUESDAY MORNING: Eek! It is going to be very cold with lows around 10°. If it clears lows may drop to 5°.  Look at Omaha, -1° and Rochester, MN, -10°. Flurries are possible, but we do not expect any measurable snow. We do need to watch this for a dusting.

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TUESDAY AFTERNOON: The sky will clear, but highs will struggle to 20°. Highs along I-80 from Omaha to Chicago will struggle to 10° despite sunshine. Rochester, MN will have another day with highs below zero.

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So, the weather pattern for the last week of 2017 is evolving in to one in which we will have blasts of Arctic air as disturbances race in from the west-northwest. This sets us up for two to three chances of small snow systems. They are timed for Thursday and Saturday as it stands now. We still have to watch the Tuesday set up.

Here is our latest forecast for the total snowfall potential the next seven days. You can see, it is not much, but we have to watch the systems at the end of the week for more potential.

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Merry Christmas!

Please don’t drink and drive

Jeff Penner

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