Wisconsin Weather Update for February 13, 2012.

By: HaleStorm , 1:26 PM GMT on February 13, 2012

Light snow later today, bigger storm Wednesday night?
A weak disturbance in the troposphere is developing some snow to our southwest across much of Iowa and Missouri this morning, and it’s expected that this snow will make its way to the southern half of Wisconsin by later this afternoon. We’re not expecting a lot of snow this evening, with an inch or less generally expected, but it may still annoy you if you’re on the roads this evening.
http://weather.unisys.com/nam/nam.php?plot=pres&i nv=0&t=4p

Of greater interest will be a new panhandle-hook-type low pressure system that has the perfect track to dump a bunch of snow on southeastern Wisconsin Wednesday night. If this currently-forecasted track holds up, the only thing that’s going to prevent a big big snow is that it also looks like it’s going to move pretty quickly, which could mean a fast 3-6” instead of a long-lasting 6-12”. Severe weather forecasts are always subject to change, so if this doesn’t pan out, please don’t arrest me. (see news article below the forecast).
http://www.crh.noaa.gov/news/display_cmsstory.php ?wfo=mkx&storyid=78994&source=0

Today’s Forecast Grade: B-
Short-Term Forecast Confidence: Medium

Wisconsin Forecast:
Today’s Conditions: Sunshine this morning, but clouding up shortly. Light snow may develop this afternoon from southwest to northeast.
Today’s High Temps: Near 29 again.
Today’s Winds: Light from the south.

Raw Model Data: (combined numerical output range from three different NOAA weather models)
Appleton: Highs 29-32.
Madison: Highs 29-31.
Milwaukee: Highs 30-31.
http://www.nws.noaa.gov/cgi-bin/mos/getall.pl?sta =KATW&sta=KMSN&sta=KMKE

Tonight: Light snow showers. Southern Wisconsin could see up to an inch of new snow, but east-central Wisconsin will probably get just a dusting to a half-inch. Lows in the lower 20s.

Tomorrow’s Conditions: Clouds in the morning, then some sunshine later in the day.
Tomorrow’s Temps: Highs in the lower 30s. Lows again in the lower 20s.
Tomorrow’s Winds: Barely noticeable.

Extended Outlook:
Conditions: Snow develops Wednesday night. Could be 3-6”, but the forecasted track and speed of the storm is of course subject to change. Maybe some light snow or flurries on Saturday.
High Temperatures: 35-40 Wednesday ahead of the storm, low to mid- 30s Thursday, then probably back to the upper 20s to lower 30s through our next weekend.
Extended Forecast Confidence: Medium

Weather in the News:

Effects of Jet Airplane Exhaust on Clouds
http://www.crh.noaa.gov/news/display_cmsstory.php ?wfo=mkx&storyid=78919&source=0

Ice grips Europe's waterways as deadly cold lingers
http://www.cnn.com/2012/02/10/world/europe/europe -cold-snap/index.html

South African law would jail meteorologists for weather forecasts
http://news.yahoo.com/blogs/sideshow/south-africa n-law-jail-meteorologists-weather-forecasts-002132 833.html
http://www.mnn.com/earth-matters/climate-weather/ stories/south-african-weather-bill-creates-a-storm -of-controversy

Today Outside of Wisconsin:

Minneapolis/St. Paul, Minnesota:
Conditions: Isolated snow showers later today.
High Temperatures: Near 30.
http://www.wunderground.com/US/MN/Minneapolis.htm l
http://www.weather.com/outlook/travel/businesstra veler/local/USMN0503

Anna, Illinois:
Winter Weather Advisory in effect until 6 am CST Tuesday...
Conditions: Snow developing later today, 1-2” possible. Also look out for freezing rain!
High Temperatures: Mid- 30s.
http://www.weather.com/outlook/travel/businesstra veler/local/USIL0033

League City, Texas:
Conditions: Showers and thunderstorms, some perhaps severe.
High Temperatures: Mid- 60s.
http://www.wunderground.com/US/TX/League_City.htm l
http://www.weather.com/outlook/travel/businesstra veler/local/USTX0745

Hilton Head Island, South Carolina:
Conditions: Sunshine!
High Temperatures: Mid- 50s.
http://www.wunderground.com/US/SC/Hilton_Head_Isl and.html
http://www.weather.com/outlook/travel/businesstra veler/local/USSC0155

Charlotte, North Carolina:
Conditions: Sunshine!
High Temperatures: Near 50.
http://www.weather.com/outlook/travel/businesstra veler/local/USNC0121

Las Vegas, Nevada:
Conditions: Windy with isolated rain showers today, then maybe some light rain or even snow tonight?
High Temperatures: Lower 60s.
http://www.weather.com/outlook/travel/businesstra veler/local/USNV0040

Davenport, Florida:
Conditions: Partly cloudy.
High Temperatures: Mid- 60s.
http://www.weather.com/outlook/travel/businesstra veler/local/USFL0104

The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.

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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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