Even after a stormy Monday night and Tuesday morning in much of the local area, we still find ourselves in a pretty sizable rainfall deficit for the month and season across the region. While Rochester officially measured 1.80″ of fresh rainfall in that heavy line of showers Tuesday, we still have a slight deficit and could use some more. The southwestern half of the local area completely missed out on those showers and in some cases the deficit is significant, something along the lines of four to eight inches below normal for the year, especially in northern Iowa where crops are suffering and an extreme drought continues.
Rochester closed the seasonal deficit to less than two inches for summer 2012, and less than an inch for July.
The official rainfall deficit for the month in Rochester today is 0.42″ while we’re 1.34″ below normal for the year and 1.85″ below normal for summer (since June 1st.) Mason City, meanwhile, has a rainfall deficit for the season of 5.94″ and 7.03″ for the entire year. They’ve measured a mere 0.14″ of rain in the entire month of July!
We’re keeping our fingers crossed and hoping for some rain in the area, especially for those locations in northern Iowa that are in danger of losing their crops and there appear to be two decent chances in the next couple of days. The first opportunity for rain will be along and even just behind a cold front that is approaching from the west today. There will be chances for thunderstorms later this afternoon and evening with that front, but probably not enough to make a huge dent in that enormous deficit, unfortunately. Temperatures ahead of that front will be in the low to mid 90s in Minnesota and in the upper 90s in northern Iowa today with heat indices in the triple digits for much of the area, but things will cool significantly behind the front for tomorrow and the upcoming weekend. Another, weaker, disturbance tomorrow evening will bring a few light showers and thunderstorms to the local area. After this, we’ll likely have to wait for light rain late in the weekend and early next week.
In the meantime, there is a chance for some strong to severe thunderstorms today with the arrival of that cold front in the region.
Large hail and damaging wind gusts will be possible in the thunderstorms that are expected to develop today and tonight along an approaching cold front.
Posted under climate, Drought
This post was written by tschmidt on July 25, 2012