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Iowa Weather Network Warnings Map

Iowa Weather Network Warnings Map

Winter Weather Advisory

Wednesday, November 24, 2010

Snow Wednesday, Accumulating snow likely. Cold! Arctic Air comes down for Thanksgiving.



Regional View

A Winter Storm system will cause travel difficulties as it moves through Northern Minnesota. The model did shift it north from where I saw it last weekend, but it will still bring significant snowfall to our north. Significant snowfall accumulations are possible in Northern Minnesota and Far Northwest Wisconsin. South of there for West central and Northern Wisconsin, as well as Southern Minnesota minor accumulations are likely. South of this freezing rain will be most likely. Arctic air will move south just in time for the Thanksgiving Holiday, making for very cold conditions Thursday and Friday.



Local View

Note: I've added Saturday and Sundays forecasts in preparation for the holiday Weekend.

Today is a huge travel day for many people, as we begin the Thanksgiving holiday Weekend. Snow will start on Wednesday afternoon, and could make for difficult travel conditions across our local area. Warm air may wrap in enough to cause freezing rain or sleet for a short time before turning back to all snow, which could further complicate the problem, and with so many people on the roads, the weather will likely be impacting many people.

Early Wednesday will be fine, its Wednesday afternoon when weather will start to decline. By Wednesday evening after turning to all snow, a band of precip will likely bring heavy snow at times and quickly accumulating snow. Even with a shift north it still appears this storm could still bring the low end of winter storm value accumulations to the North with 3 to as much as 6 inches in Northern areas. with 2-4" in the central areas, and finally 1-3 inches for southeast areas, where more freezing rain may mix in. I would not be surprised to hear of thunder snow on Wednesday. Arctic air will plunge down behind this storm for Thanksgiving Day, Highs will be lucky if we struggle out of the middle teens for highs, with Lows Thursday night in the low single digits! Winds will also be gusty with wind blown flurries in Thursday, wind chills will likely be below zero at times. Friday is another huge travel day, and it it will be dry for it but cold temps and sunny skies. Upper teens will be the highs on Friday and the lows will be in the upper single digits. Saturday and Sunday will bring warmer temperatures and some sunshine, highs by Sunday will be back into the low 30s, with lows in the teens.

Wednesday, Cloudy then Snow developing in the afternoon. Some could be heavy at times. Highs in the low 30s. Wednesday Night, Snow, some could be heavy at times. Snow quickly accumulating to 3-6" in the North to 1-4" in the Central and Southern areas. lows in the mid teens.

Thanksgiving, Cold!! Windy, wind blown flurries with wind chills below zero at times. Highs in the low to mid 10s. Thursday night, Cold!! cloudy to partly cloudy skies with lows in the low single digits.

Friday, Cold! partly cloudy with highs in the middle to upper 10s. Friday Night, Cold! partly cloudy with lows in the upper single digits.

Saturday, Warmer, partly cloudy with highs in the mid 20s. Saturday Night, Partly cloudy with lows in the mid 10s.

Sunday, Warmer partly to mostly cloudy, highs in the low 30s. Sunday Night, Cloudy lows in the upper 10s.

Looking Ahead

Monday Immediately following the weekend looks like we could have a small snow system bring several inches of snow. Behind it Arctic Air makes a come back for Tuesday the 30th, and it appears that thins will not warm up significantly for quite some time after this date. Friday the 3rd of Dec, a snowy system passes to our north, dragging another blast of cold air behind it. Flurries are possible Sat/Sun the 4th/5th. Then then the models are hinting at a major storm system pulling out of the southern part of the country, and pulling across the Central U.S This will have to be watched closely, it could be a major snow storm if things play out in the right conditions. Dec 9th the models show cold air continuing with off and on chances for flurries.

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