Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Lake Winnebago and Lake Michigan Lake Effect Showers

The water temperature of Lake Winnebago is around 70 degrees Fahrenheit, or 21 degrees Celsius, while temperatures at 5 thousand feet are around 3 degrees Celsius. This temperature difference causes unstable conditions that can result in shower development. While a mid level trough created conditions favorable for showers, the unstable air over the warm waters of both Lake Winnebago and Lake Michigan produced several bands of rain showers. While this is common over Lake Michigan, is more rare to occur from Lake Winnebago.

KMKX Radar Base Reflectivity Loop

This is a radar loop from Friday night (9/11) and early Saturday morning (9/12) that shows the lake effect rain showers downstream from Lake Winnebago and also over Lake Michigan. The images are approximately 10 minutes apart from 9:50 pm to 1:33 am.

NWS Milwaukee/Sullivan

Hentz/Cronce

MKX RSS Feed

Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Lake Winnebago Lake Effect Showers