1/29/15: Cold Air Advection

A cold front has now moved through most of North Dakota.  A stiff north wind moved from west to east across the state overnight.  The wind is still strong in the Red River Valley, but that wind should settle down today.  An average wind of 10-20 mph is expected.  High pressure is located in central Manitoba and that will move through eastern North Dakota into Iowa by Friday morning.

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As the high moves across the state, the wind should become quite light and then gradually pick up from the south during the overnight hours.  That in turn should keep the temperatures  from getting too cold tonight as temperatures may rise a bit by sunrise, but Friday will still be one of the colder mornings recorded in the past couple of weeks.

24hours

Temperatures this morning have continued to fall and should begin to stabilized by late morning or early afternoon, but little if any temperature increase is foreseen, more of a steady temperature afternoon.

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10:00 AM Temps

With the cold air sweeping into the area (Cold Air Advection) there often comes cloud cover and that is certainly the case as well.  There are some breaks but cloudy or mostly cloudy should be the rule today with scattered flurry showers.

9:45 AM Satellite

9:45 AM Satellite

With some residual cloud cover, even tonight and that south wind developing temperatures tonight not falling much below the 0s in northeastern North Dakota and in southwestern North Dakota, although temps may get as cool as the 10s briefly, the temperatures should rise into the 20s by morning.  So far from a bitterly cold night.  That will be coming next week.

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projected Minimums for Friday, January 30, 2015

Tomorrow temperatures will recover somewhat head of the next cold front but after that front arrives on Saturday a major shift to cold will occur.   The cold front should come early in the day, with mainly southwestern North Dakota recording any snowfall, elsewhere little if any accumulation is expected.  A stiff north wind in the 20-35 mph range is expected and with that falling temperatures during the day.

Projected Wind for Noon Saturday, January 31, 2015 in Knots (gusts not included)

Projected Wind for Noon Saturday, January 31, 2015 in Knots (gusts not included)

Much colder air will push south out of central Canada with temperatures falling to perhaps below zero by sunset on Saturday late afternoon across far North Dakota with most locations below zero for lows on Sunday morning with some -10s possibilities.

Projected Surface Temperature for 6:00 PM Saturday, January 31, 2015

Projected Surface Temperature for 6:00 PM Saturday, January 31, 2015

The cold air once in place with stay for at least 5-6 days with different intensities, so back to winter for the upper Midwest as February begins.

Daryl Ritchison

 

 

 

 

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