Wisconsin Weather Update for December 19, 2008.

By: HaleStorm , 1:24 PM GMT on December 19, 2008

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Good Friday morning!

Weather Synopsis
And here we go once again! A strong area of low pressure system which promised a significant snowstorm yesterday evening through early this morning was running late and dropped a little bit further south than initially expected. The storm finally arrived overnight, and because of its tardiness, will linger through this morning and into early this afternoon. Expect heavy snow, wind, and areas of blowing snow through the morning. The initial prediction of 5-9" in east-central Wisconsin has been downgraded to 3-5", but southern Wisconsin is still on pace to get a rapid 8-12" of snow before this thing is done! After this snow storm passes, you won't have to wait long to get your shovels out again, as another system could dump similar amounts of snow on us Saturday night and Sunday morning, with yet another system coming through late on Tuesday! 'Tis the season!

Raw Model Data will return next week, with a better explanation of what you're looking at.

Important Weather Statement: (Source: National Weather Service)
Fox Cities:
... Winter Weather Advisory in effect until 6 PM CST this afternoon...
... Winter Storm Warning is cancelled...
The National Weather Service in Green Bay has issued a Winter
Weather Advisory for snow and blowing snow... which is in effect
until 6 PM CST this afternoon. The Winter Storm Warning has been

Snow will spread north into the area early this morning and
continue through noon... diminishing to flurries late this
afternoon. A total snowfall of 3 to 5 inches is expected.
Increasing northeast winds will produce some blowing and drifting
of the snow.

A Winter Weather Advisory for snow means that snow will produce
hazardous travel conditions. Use caution when traveling...
especially in open areas. The latest Wisconsin Road conditions
can be obtained by calling 800-762-3947.

Southern Wisconsin:
... Winter Storm Warning remains in effect until noon CST today...
A Winter Storm Warning remains in effect until noon CST today.

Snow will affect the area through Friday morning. The snow will be
heavy at times... resulting in rapid accumulations. Isolated
thunderstorms are possible which would also increase the snowfall

Snowfall accumulations of 7 to 12 inches are expected... with
the greatest totals south of a line from Madison to Milwaukee.

In addition to the heavy snow... east to northeast winds of 15 to
25 mph... with gusts to 30 mph... will produce blowing and drifting
snow in open areas through Friday morning.

A Winter Storm Warning for heavy snow and blowing snow is issued
when heavy snow is expected to combine with strong winds of 25 mph
or more to cause major impacts to Commerce and society. Travel
will become dangerous later tonight and Friday morning... and will
be strongly discouraged.

Today’s Forecast Grade: D

Wisconsin Forecast:
Today: Snow and wind, both heavy at times this morning. Blowing snow and perhaps more occasional rumbles of thunder too. Snow diminishes to flurries with decreasing winds this afternoon. Total expected accumulations from the National Weather Service are for 3-5" in east-central Wisconsin and 8-12" in south-central and southeastern Wisconsin. High of 24 central, upper 20s south.

Tonight: Mostly cloudy with stray flurries. Lows mid- teens.

This Weekend:
Saturday: Cloudy and becoming windy again with snow developing late in the day, becoming moderate to heavy again overnight. There is some weather model discrepancy on just how much we're expected to get Saturday night, but there's a good chance it could be another 6+" so stay tuned if you're on the roads Saturday night through Sunday morning. Highs near 20 central, mid- 20s south. Chance of measurable snow Saturday night 80%.

Sunday: Cloudy, windy and colder with morning light fluffy snow tapering off to flurries in the afternoon. Highs only near 10 above zero! Chance of measurable snow Sunday morning 40%.

Next Week:
Monday: Partly cloudy and cold, highs 10-15.

Tuesday: Cloudy and a little warmer with light to moderate snow. As of now the models are suggesting the strongest part of this storm system is going to hit to our south and east but keep an eye on this one in case it changes its mind. Highs 15-20. Chance of measurable snow 50%.

Christmas Eve: Cloudy with morning light snow. Highs 17-22. Chance of measurable snow 30%.

Christmas Day: Mostly cloudy and a little warmer with flurries just for a pleasant window-watching effect. Highs 21-26.

Other City Forecasts:

This Weekend in Minneapolis/St. Paul, Minnesota: 1" of snow today, 5" of snow tomorrow, 2-3" tomorrow night, and another 1" of snow on Sunday. Highs around 20 today and tomorrow but only five above on Sunday.
Winter Storm Watch in effect from Saturday morning through Sunday afternoon...
Snow has all but ended over southern Minnesota...including the Twin City Metro area. The snow has tapered to flurries and will linger the longest over the southern and eastern parts of the Metro...until 900 am. Most of the snow fell along and near the Iowa border overnight. 4 to 6 inches fell overnight along and 10 miles either side of I-90 from Fairmont...to Blue Earth and Albert Lea. Just a little further north 1 to 3 inches fell from around Saint James...to Waseca...to Owatonna.

This Weekend in Anna, Illinois: Breezy with isolated morning showers today. Scattered rain showers tomorrow. Some sun on Sunday. Highs lower 60s today, mid- 40s tomorrow, and mid- to upper 20s on Sunday. At this pace, you'll be in the low -40s below zero by Christmas!
Wind Advisory in effect until 2 PM CST this afternoon...

This Weekend in League City and Pearland, Texas: Morning fog and isolated showers. Partly cloudy this afternoon. Scattered showers late tomorrow. Cloudy breezy and cooler on Sunday. Highs mid- 70s today and tomorrow, lower 50s on Sunday.
Dense fog advisory in effect until 10 am CST this morning...
At 540am...scattered showers will move across southeast Texas as a weak frontal boundary stalls north of the area. These showers will likely affect the Houston Metro area through 8am. Some areas could see a tenth to a quarter of an inch of rain fall from the showers. Fog will be possible along the coast and near Galveston Bay. Some pockets of fog will be dense. The fog should begin to lift after 8am.

This Weekend in Hilton Head Island, South Carolina: Partly cloudy and warm today, warm with clouds tomorrow, showers and cooler on Sunday. Highs upper 70s today and tomorrow, and upper 60s on Sunday.

This Weekend in Las Vegas, Nevada: You've been the talk of the nation with all that snow you got earlier this week! Partly cloudy this weekend, highs upper 40s to lower 50s. Bye bye, snow.

This Weekend in Davenport, Florida: Morning fog each day, becoming partly cloudy. Highs upper 70s to near 80. Yes, we're all jealous of you.
Dense fog advisory in effect until 9 am EST this morning...

Weather in the News:

Storm is 'right on target' for 8-12 inches
That white Christmas thing is no longer a dream. Just look out your window this morning.
“The clobbering is in progress,” said Channel 4 meteorologist Craig Koplien, who said the snow storm is on target to drop 8 to 12 inches as promised today.
Koplien said he had already received reports from western communities such as Hartland, which was reporting up to five inches of snow by 3:45 a.m. and Brookfield at that point was already upwards to about 4 inches of snow on the ground. Further west, in Madison, 7 inches had already fallen.

Storm that walloped Southwest targets the East
* Gaining strength, storm is expected to maintain intensity into Saturday
* Watches, warnings extend from central Plains to mid- and north-Atlantic coast
* States from Illinois to New York can expect up to a foot of snow

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About HaleStorm

Atmospheric and Oceanic Sciences degree from UW-Madison: 1998. Former broadcast Meteorologist for NewsRadio 1310 WIBA in Madison. NWS Storm Spotter.

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