IEM Daily Feature
Tuesday, 09 October 2018

October Gradient

Posted: 09 Oct 2018 05:35 AM

The rains just won't stop. One of the main drivers of the persistent rainy weather has been a frontal boundary over or near Iowa for much of this time. This boundary delineates the hot / humid air mass to the south and the cooler / drier air mass to the north. The persistence of this boundary can be seen by simply averaging the hourly temperatures so far this October. While southeastern Iowa has an average above 60, northwestern Iowa has been below 50. Iowa is within the battleground of the air masses and thus seen plenty of rainfall events. Hopefully this pattern breaks soon!

Good = 15
Bad = 0