Heavy snow and strong winds are expected to create hazardous travel conditions over the KWWL viewing area, as well as much of the Midwest, late Monday night through Wednesday. Blizzard conditions would be most likely in our viewing area Tuesday morning through Wednesday afternoon. This means that winds will be over 35 mph and visibilities will be less than a quarter mile for over 3 hours.
You’ll want to stay ahead of this winter storm.
Now that the storm is on the mainland of the United States, our weather balloon network is able to gather important data that feeds our computer model guidance. Some of the early runs Sunday evening are keeping a heavy band of snow in our far northwestern counties, and points to the northwest. This is where 8 to 12 inches of snow is expected, with isolated higher amounts possible. In the central part of the area, there will be 6 to 9 inches of snow. The southeastern part of the area will see a sharp cutoff in snow totals. This is due to those areas being closer to the track of the low pressure, and the fact that warm air may work in late Tuesday morning or early afternoon, mixing the snow with sleet and rain. There may be a brief changeover to all rain around Iowa City and Washington. We’re also keeping an eye on the potential for dry air to wrap into the system.
The winds will be very strong with this system, kicking in late Tuesday morning and will be the strongest Tuesday afternoon and night. Gusts could be as high as 45 mph.
A Blizzard Watch is in effect for Tuesday and Wednesday for Black Hawk, Bremer, Butler, Chickasaw, Fayette, Grundy, and Winneshiek counties. A Winter Storm Watch is in effect for Tuesday and Wednesday for Allamakee, Benton, Buchanan, Clayton, Delaware, Dubuque, Iowa, Jones, Linn and Tama counties. The remainder of the KWWL viewing is not under a winter weather alert as of Sunday afternoon.
CAUCUS NIGHT: Scattered snow showers or flurries may track in around 10 PM, but the real issues don’t arrive until after Midnight Monday night.
Stay tuned to KWWL for further updates.
Posted under Forecast Discussion, Winter Weather
This post was written by Kyle Kiel on January 31, 2016