The pattern of extreme changes continues this spring. Perhaps you heard about the huge ice shoves this past weekend that pushed mega piles of ice off Lake Mille Lacs in Minnesota. Homes and property on the southeast shore were damaged heavily as 35 mph northwesterly winds piled the floating up onto shore like a moving glacier. You can watch the ice in action from the following link. http://www.accuweather.com/en/weather-blogs/weathermatrix/ice-needle-shoves-surges-terrorize-great-lakes/12337031
Also a lake west of Winnipeg in Manitoba piled up ice 27 feet deep into some homes. That is one of the weirdest natural disasters I can think of. The wind that produced the ice pile ups was part of a deep trough of low pressure north of Lake Superior which drove the very chilly weather down into Wisconsin this past weekend. Of course we had several record low temperatures Sunday night across Wisconsin. The cold air is moving east. In fact frost and freeze advisories were posted Monday night from portions of North Carolina northward to Maine.
Meanwhile red flag warnings have been posted into Tuesday in an area from Montana Iowa and Minnesota. An intense burst of heat that originated in the Desert Southwest of the U.S. is shooting northeast across the country. Highs could be close to 100 around Omaha, NE with 90s into southern Minnesota. This coupled with low humidity, gusty winds, sunshine, and dry fuels will make for dangerous fire conditions. Burning is prohibited and residents are asked to avoid any activities that could lead to sparks.
Just maybe the weather patterns will settle into something closer to normal over the next few weeks. It will be interesting to see how it plays out. The cold air intrusions have to run out sooner or later. By the way we are getting to the point where gardeners wonder if we have seen the last frost for the season. The average last frost date across Wisconsin varies from late April near Lake Michigan to early June in some northern areas. So we are certainly getting a little safer from the cold with each passing day.
This post was written by Tony Schumacher on May 13, 2013