An early season Pacific storm brought heavy rain and cool temperatures to the Pacific Northwest as well as eastern parts of Washington and Oregon and even into Idaho and farther south into northern California. Many records were set for both rainfall amounts and cool high temperatures.
Meanwhile, the Southwest remained dry as high pressure moved east across the Four Corners region. Moisture crept into southern Arizona and New Mexico late as moisture from Tropical Storm Juliette began to stream northward, while a cool rain fell from Montana to spots in Wyoming and western Colorado. The rain was associated with a strong system that sliced into the warmth of the High Plains and Midwest on Sunday.
Conditions were much more favorable for unsettled weather in this region, and strong and severe storms touched off from Oklahoma to Iowa, Minnesota and Wisconsin. Wind gusts as high as 70 mph were endured in the strongest storms along with large hail and heavy rain. A tornado touched down south of Sully, Jasper County, Iowa, and traveled into Malcom, Poweshiek County, Iowa, where the last report was made at 6:51 p.m. CDT. Spotty storms fired across Texas and Florida as tropical moisture was drawn into these states. At the same time, high pressure moved off the New England coast and continued to bring dry weather to much of the East, including areas which ended September with abnormally dry or drought conditions of historical proportions.
Warm temperatures in the 80s covered a large area from the lower Midwest to the Southeast. However, the Northeast had pleasant conditions, with highs topping out into the 60s and 70s.