Forcast help

Polarice

New member
Monday, December 03, 2012

Recent Snowfall:

Things were quiet in most of the region again yesterday, with just a bit of light snow and flurry action up across far northern MN and the far northern UP.

Highlights:

There is some good news and some bad news and the potential for some really good news in the forecast in the next week to ten days, but overall, I am still encouraged by what I see to take place in the next 10 days. Patience may be the operative word though.

1-4 DAY FORECAST:

Temps will be well above average again today and then a cold front will start to cool things off in the NW later today, then across the NW 1/3rd of the region overnight and the cooling will overtake most of the region by later tomorrow and Tuesday.

A bit of light rain is possible in the Northwoods today and early tonight, but most amounts will be on the light side. The exceptions being in the far eastern UP and northern lower MI, where totals of up to .35" are possible.

Totals of .10-.50" are likely in areas of the Midwest to the south and east of a line from Kansas City to Milwaukee to the Soo.

Pretty limited snows are seen as the temps cool. An inch or so will be possible in NE ND and northern MN later today and tonight and then across the far northern MN Arrowhead and the northern UP tomorrow and tomorrow night. A bit of lake enhancement might allow totals of an inch or two to fall in the lake snow belts of the Keweenaw and then from Munising to Whitefish Pt.

Temps today will be warming into the upper 40's to low 50's in most of the Northwoods, with 50's and 60's in the rest of the region.

Cooler temps will then build in and send highs down into the upper 20's to low 30's for highs in the Northwoods for tomorrow and Wednesday. A quick bump into the upper 30's to around 40 is seen in the Northwoods for Thursday.

5-10 DAY FORECAST:

The past few days I thought I was going to have to try and be descriptive enough to say why even though no big storms were seen in this time frame that folks should still feel encouraged by what the pattern looks to be like in this time frame, but alas, the models are starting to latch onto the idea of a pretty big storm for parts of the Midwest by late in the weekend and/or early next week.

I will point out that the models are not in perfect agreement on the track and strength of the low for late in the weekend or early next week and it is still too far out that even if there was good agreement that a lot of confidence should be given to the exact forecast, but as it stands right now, one model is indicating the potential for a Category 4 type storm to impact NW IA, the southeast 2/rds of MN, northwest WI and western 1/3rd to 1/2 of the UP by Sunday into Sunday night. That same idea indicates heavy rains to fall to the south and east of the main snow area. Another model is less aggressive with the northward push of moisture and indicates totals more along the line of 1-4" to fall in most of the Northwoods. Right now I am putting a little more faith into the idea of the big storm, but am by no means set on that idea, so one should expect some changes to the details of things for later next weekend and early next week in future forecasts. The bottom line though is that some accumulating snows look likely, just how much and exactly where.

Beyond that system, a period of lake snows would likely add a few more inches of snow to the UP and northern lower lake snow belts and a strong clipper may be poised to bring more system snows to much of the Northwoods by the second half of next week.

11-16 DAY FORECAST:

The pattern in this time frame is still looking quite encouraging. The pattern looks to support a NW flow aloft across the central US and that type of pattern would produce some chances for snows in the northern 1/2 of the region as well as keep temps below average and thus well below freezing in the Northwoods. So perhaps no big storms, but frequent light snow events to keep adding to snowpack across the northern 1/3rd to 1/2 of the region and cold enough temps to keep the snow around.

The Bottom Line:

The current thaw will continue to take it's toll on snowcover in the Northwoods for another 12-18 hours and then most of the melting looks to be over. A quick bit of melting is possible as temps shoot above freezing for Thursday afternoon, but that thaw looks to last hours and not days. Not a lot of new snow is seen this week, but all eyes will be on the potential for a big storm in the northern Midwest by late in the weekend and/or early next week.
 
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