Keep the sunglasses handy this week.
Monday was one of those rare days with nearly 100% of possible sunshine across Minnesota.
Note the lack of snow cover across most of Iowa now. Went to see bare ground? Just drive about 3 hours south on I-35.
Spring flood outlook: Near normal
How much water is in that snow? That’s what your local NWS office does to assist with spring flood forecasting.
We take snow cores (measurement of amount of water in snow pack) at our office every Monday, to help with spring flood forecast. Rain gauge is turned upside down & pushed down to ground to gather "biscuit" of snow to melt down inside. Coop & CoCoRaHS also take these measurements. pic.twitter.com/jnXsZrtx2d
— NWS Twin Cities (@NWSTwinCities) March 12, 2018
Here’s the current spring flood outlook form the North Central River Forecast Center in Chanhassen.
Overall, the flood risk for this drainage area is near normal.
February temperatures continued the overall below normal trend, but we have seen some moderation in the past week. This is especially true for Iowa and Missouri, into Illinois and Indiana, where we saw temperatures surging into the 50s and 60s. Precipitation has also trended a bit higher in recent weeks, after a relatively dry winter overall.
Recent storm systems have finally enhanced the snow cover across Minnesota, but the warmer weather this week is already eroding it. Snow water content range from less than an inch in western Minnesota, to around 2 to 3 inches over parts of southern Minnesota into northern Wisconsin. Little or no snow currently exists south of a line from northern Iowa to Milwaukee.
Frost depth continues to be quite deep over Minnesota and the northern two thirds of Wisconsin. Depth of 2 to 4 feet is common. Farther south, frost depth is less than 3 to 6 inches from Iowa and Illinois into Missouri.
In general, the flood potential for this area this spring is near normal. However, there are caveats. Portions of Illinois and Missouri have seen high water and flooding from recent events. If additional heavy precipitation occurs in these areas, flooding will become more likely. In addition, farther north where some snow still remains, the expected storm systems this week and into the weekend could bring rainfall on top of snow cover. Depending on where and how much falls, flooding is a concern for northern Iowa, the southern half of Minnesota and Wisconsin, and also northern Illinois. If this precipitation falls as rain, we could see enhanced snowmelt. That melt, combined with rainfall, and running off over deeply frozen ground, could be a recipe for flooding.
Our warming trend kicks into higher gear by Wednesday. Much of the Twin Cities and southern Minnesota makes a run at 50 degrees late this week.
Boston: 1 to 2 feet of snow
The biggest national weather story early this week is yet another potent Nor’easter. This powerful storm hits fast and hard overnight. The latest indications are for 1 to 2 feet of snow around Boston Tuesday.
Snow will be heaviest in SE Mass where up to 2ft is possible. Snow is expected to start around midnight tonight, and move out late tomorrow. Area of concern is across Cape & Islands where heavy wet snow along with strong, damaging winds could lead to downed trees & power outages pic.twitter.com/bAGZDbWHkM
— NWS Boston (@NWSBoston) March 12, 2018
“Kids” climate suit goes forward
This is an amazing story. I’ve interviewed one of the plaintiffs.
The Trump administration cannot short-circuit a federal climate change lawsuit brought by a group of 21 children… https://t.co/D05ELYtseu
— Skeptical Science (@skepticscience) March 12, 2018