1/25/16: Clipper Week

Overnight much of North Dakota recorded a dusting of snow (0.5 inches or less).  With the exception of the far southeastern corner of North Dakota, very little addition snow is foreseen in the state today as much of the day the snow will be falling in South Dakota through central Minnesota.

6:00 to 8:00 AM radar
6:00 to 8:00 AM radar

 

In fact, a Winter Weather Advisory (WWA) is posted across eastern South Dakota into central Minnesota and another WWA is posted from eastern Nebraska through Wisconsin. The northern advisory, 2 to 5 inches of snow is expected and in the southern advisory, some freezing rain mixed with snow is the reason for the advisory..   Although far southeastern North Dakota may experience some additional accumulation today, much of the state will experience little if any additional snowfall besides some lingering pockets this mornings.

Winter Weather Advisories for parts of the Midwest for 1/25/16
Winter Weather Advisories for parts of the Midwest for 1/25/16

 

Temperatures will remain mild, but end of January standards through the weekend with maximums in the 20s and 30s and western North Dakota should record maximums in the 40s, especially Wednesday through Friday.

Although mild this week, the snow system from today, will not be the only precipitation event of the week.  It appears there will be precipitation threats today, Wednesday and again on Friday through Saturday as several “Alberta Clippers” pass through the northern plains this week.  As previously mentioned, the first clipper today will impact South Dakota through central Minnesota the hardest as presented below.

Noon Surface Conditions and 3 Hour precipitation (Liquid equivalency)
Noon Surface Conditions and 3 Hour precipitation (Liquid equivalency)

 

The next Clipper on Wednesday is expected to take a path much farther north and move through southern Canada.  This will mean the main snow band will likely be north of North Dakota, with temperatures probably warm enough for some mix of rain and snow in the state through northern Minnesota.  The wind will shift west/northwest and become quite strong behind the band of precipitation that is expected.

Wednesday, January 27, 2016 3 PM Surface Map and 3 hour precipitation (Liquid Equivalency)
Wednesday, January 27, 2016 3 PM Surface Map and 3 hour precipitation (Liquid Equivalency)

Then yet another clipper is expected on Friday, probably tracking farther south than the Wednesday event.  The Friday system appears to be coming in two pieces meaning one round of moisture on Friday and another on Saturday.  Especially Friday the atmosphere looks warm enough for some mixed precipitation (rain/snow) to occur.

Friday, Janury 29, 2016 Projected Surface Map for 12:00 PM (NOON)
Friday, January 29, 2016 Projected Surface Map for 12:00 PM (NOON)

The map above, which should be taken as an approximation, not a prediction, will be wave one of two with another threat of snow lingering on Saturday.  Beyond Saturday will come colder air once again, although at the moment, not horribly cold, at least immediately.

Daryl Ritchison