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National Weather Service:
Lake Effect Snow Watch

Current Conditions
Updated: 1:53 AM CST on February 10, 2012
Overcast Valparaiso: 30°
 Overcast
Wind: 8 mph from the SW
Dew Point: 24 °F
Pressure: 30.09 in
Windchill: 22 °F
Humidity: 79%
Visibility: 10.0 miles
Local Radar
Local Satellite
5 Day Forecast for Valparaiso
Fri Sat Sun Mon Tue
Chance of Snow Snow Showers Clear Chance of Snow Chance of Snow
Chance of Snow Snow Showers Clear Chance of Snow Chance of Snow
31° | 16° 25° | 13° 27° | 14° 31° | 27° 34° | 29°
Forecast as of 9:18 PM CST on February 9, 2012

Lake effect snow watch in effect from Friday afternoon through Saturday afternoon...
Overnight
Mostly cloudy. Temperatures nearly steady in the upper 20s. Southwest winds 10 to 15 mph.
Friday
Mostly cloudy with lake effect snow becoming likely north...a chance of snow showers south. Blustery. Highs in the lower 30s. West winds 10 to 15 mph with gusts up 30 mph until late afternoon shifting to the north 15 to 25 mph with gusts to 30 mph late in the afternoon. Chance of snow 40 percent south to 70 percent north.
Friday Night
Cloudy with accumulating lake effect snow north and a chance of snow showers south. Blustery. Lows 15 to 19. North winds 15 to 25 mph with gusts to 30 mph in the evening decreasing to 10 to 15 mph after midnight. Chance of snow 40 percent south to 70 percent north.
Saturday
Cloudy in the morning with accumulating lake effect snow north and a chance of snow showers south...then becoming partly sunny during the afternoon. Highs in the mid 20s. Northwest winds 10 to 20 mph...gusts up to 30 mph in the afternoon. Chance of snow 40 percent south...70 percent north.
Saturday Night
Partly cloudy in the evening then clearing. Lows 12 to 16. West winds 10 to 20 mph with gusts up to 30 mph at times.
Sunday
Sunny. Highs in the upper 20s.
Sunday Night
Mostly clear. Lows 14 to 18.
Monday
Mostly cloudy with a 30 percent chance of light snow. Highs in the lower 30s.
Monday Night
Cloudy with a 50 percent chance of light snow. Lows in the upper 20s.
Tuesday
Cloudy with a 30 percent chance of snow showers. Highs in the mid 30s.
Tuesday Night and Wednesday
Mostly cloudy. Lows in the upper 20s. Highs in the upper 30s.
Wednesday Night
Mostly cloudy with a 30 percent chance of light rain or snow. Lows in the lower 30s.
Thursday
Cloudy with a 50 percent chance of rain or snow. Highs around 40.
Astronomy
Sunrise:06:50 AM (CST) Moon Rise:08:56 PM (CST)
Sunset:05:15 PM (CST) Moon Set:07:55 AM (CST)
Moon Phase
Feb. 10 Feb. 14 Feb. 21 Feb. 29 Mar. 08
Lake Effect Snow Watch
Statement as of 9:09 PM CST on February 9, 2012

... Lake effect snow watch remains in effect from Friday afternoon
through Saturday afternoon...

* timing... lake effect snow is expected to develop Friday
afternoon and continue through Friday night and Saturday morning
before shifting east of the watch area by mid afternoon
Saturday. North to northeast winds will initially focus the most
numerous snow showers along the Illinois shore Friday
afternoon... with the focus then expected to shift more into lake
and Porter counties in Northwest Indiana overnight Friday night.
Winds will eventually back to the northwest on Saturday...
allowing the bands of lake effect snow to move east of Porter
County in the early afternoon. The period of heaviest lake
effect snow and fastest accumulation will occur from late Friday
afternoon into the predawn hours of Saturday.

* Snow accumulations... while lake effect snow can be highly
localized... current forecasts are for total accumulations from 3
to 5 inches in far northeast Cook County... 4 to 7 inches across
downtown Chicago and the south suburbs... with 5 to 8 inches from
the far southeast side of Chicago east across central and
Northern Lake and Porter counties of Northwest Indiana. Isolated
higher amounts are possible if the heaviest snow bands can
become stationary for an extended period of time.

* Other impacts... slippery snow covered roads... intense snowfall
leading to rapid snow accumulation and severely reduced
visibility... blowing and drifting snow... and single digit wind
chills.

Precautionary/preparedness actions...

A lake effect snow watch means there is a potential for a large
amount of snow in only a few hours. Visibilities and depth of
snow can vary greatly... impacting travel significantly. Continue
to monitor the latest forecasts.
 

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