Weekend looks good thru Sun Evening - Next shot of Snow late Sunday/Monday.
Temps stay below normal thru next 10 days.
Mostly cloudy conditions are expected today as temperatures remain below normal. Some scattered flurries could occur later today under the cloudy skies but no accumulation is expected. The cloudy conditions will persist into tonight and Wednesday. The threat of measurable snow will increase on Wednesday...especially across the northeast half of the state where moderate snowfall accumulations are expected by Thursday morning. Expect up to 2 inches in Pow Cty - and lesser amounts to the South and West. We may see some Isolated Lt Ice accumulation on a Line from Omaha to Des Moines to Ottumwa ending by Thursday Morning...........
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14 Dec 2010 Extended Forecast
Today 14th - Cloudy - High Temps 18.
Wed and Thurs 15th/16th - Mostly Cloudy with Lt Snow and Breezy Wed into Thurs afternoon (2+ Inches) - Then Partly Cloudy Later Thurs - Highs near 25 - Lows 15-20.
Fri thru Tues 17th thru 21st - Partly to Mostly Cloudy - Lt Snow Monday into Tuesday (2+ Inches).
22nd thru CHRISTMAS - Unsettled with Snow on the 23rd thru atleast Christmas Day..........
The next question - and the time is nearing.... What will January 2011 bring us? There are indications we may see a Major Weather Reversal. It's almost mid-month, and so far Dec has brought us average Temperatures that are pushing -6F below normal.......I can see a reversal in the offing that could push average Temps in January WELL above the 34F normal.....The last time that happened was January 2006 - the winter went well into April with above normal Precip - with an Ice episode followed by a Snow Storm March - and more Ice in April......We'll see.
An interesting Note: Snow pack can have a huge effect on temperatures obviously, and those temperatures can actually play a bigger role that just what it feels like. They can actually change weather, by tracking low pressure centers in different ways. Areas of low pressure develop usually along areas of significant temperature gradients, with cold air on the north side and warm air on the south side. (The overall Mid-West snowpack runs roughly from North Central Nebraska to Kansas City to SRN Mo., and SE to the Tenn Valley - Rj) This would favor a lot of low pressure systems to pass to our south on the southern edge of the snow pack. Iowa IS the gradient. Given this scenario, Iowa may not get a break for a while….that snow is not going anywhere fast, and if lows track over nearly the same spots, or further south, that means more snow potential for Iowa….and more cold too. This will likely wind up being an active rest of the month, simply due to where the snow has fallen, and how low pressure centers like to behave.
Kaj O'Mara, KCRG TV 9 Meteorologist
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