We will have to wait and see how much of an impact the northern low will play when it comes to this weekend. Right now it looks like the northern low in MN/WI will be producing all of the snow. The low that is southeast of Iowa will be more of a rain producer for parts of Iowa south and east.
Posted under Update
This post was written by Schnack on December 6, 2012
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This post was written by Schnack on December 6, 2012
UPDATED at 4:20 PM
Tonight: Light showers will end this evening otherwise mostly cloudy. Low: 28-36. Wind: N 5 mph.
Friday: Mostly cloudy. High: 38-44. Wind: NE 5-10 mph.
Friday Night: Mostly cloudy. Low: 24-29. Wind: NE 5 mph.
Saturday: Mostly cloudy. High: near 40.
Sunday: Cloudy with a 50% chance of rain/snow. High: mid 30s.
Monday: Mostly sunny and breezy (NW 10-20 mph). High: mid 20s.
Tuesday: Partly cloudy. High: low 30s.
Wednesday: Partly cloudy. High: upper 30s
Thursday: Partly cloudy. High: low 30s.
There have been a few light rain showers and some drizzle today amounting to a few hundredths of an inch. The light showers will be ending this evening. Here is the radar from 2:18 PM today.
Friday and Saturday will be dry but with lots of clouds around. High temperatures will be above normal with readings near 40 degrees.
Now for the latest on the chance of snow and now rain mixed in for Sunday. The model data from this morning shows the low tracking from Oklahoma to about Indiana from Sunday morning to Monday morning. Here are the computer model tracks and HPC.
There is a little more warm air getting wrapped into the storm with the latest model updates. That would make this more of a rain/snow mix changing to snow at some point in the afternoon Sunday. The temperatures are forecast to drop during the afternoon as the low moves east of Iowa. The liquid from this storm in Iowa is going to be light. Here is the liquid in the storm from Saturday evening to Sunday evening.
The map below shows the chance of 1”+ of snow from Saturday evening to Sunday evening. The best chances of any accumulating light snow would be across northern Iowa.
The wind will increase from the NW Monday with sunshine and colder temperatures. The highs in the 20s on Monday don’t last long as temperatures are expected to rebound back into the 30s as early as Tuesday.
Posted under Forecast Discussion
This post was written by Schnack on December 6, 2012
From NWS
1939: Unseasonably warm weather across Iowa brought the temperature up to 70 degrees or higher at about a dozen stations around the state. At Sioux City the high of 71 F set an all-time December record at that location, while a reading of 74 F at Thurman marked the highest December temperature ever recorded anywhere in Iowa. Other reported high temperatures included 73 F at Shenandoah, 70 F at Guthrie Center, and 69 F at Atlantic, Carroll, Des Moines, Little Sioux, and Winterset.
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Posted under Weather History
This post was written by Schnack on December 6, 2012
