Weekly Wrap-Up: Severe Storms Blast Central U.S., Typhoon Phanfone Eyes Japan

Following a bout of severe storms that rumbled through the Plains and portions of the Rockies earlier in the week, Thursday night's storms blasted areas from Texas to Missouri and portions of Kentucky with fierce winds, flooding downpours and large hail.

A powerful cold front produced towering clouds, severe thunderstorms and torrential rain from the Lower Mississippi Valley to the Deep South that continued into Friday.

Almost 1 million people were without power in the Dallas-Fort Worth Metroplex as of Friday morning. Power crews worked early Friday to restore electricity from Texas to Kentucky. A power outage forced the University of Texas at Arlington to close on Friday.

Autumn air is set to follow the drenching downpours and severe weather that pushed through some locations.

When compared to afternoon highs from early this week, early morning temperatures this the weekend may be 30 to 50 degrees lower in portions of the Midwest. With gusty winds factored in, AccuWeather RealFeel® Temperatures will plummet.

The combination of temperature, wind and other conditions will make RealFeel Temperatures dip into the teens and 20s over the northern Plains and Upper Midwest at night this weekend.

Areas most likely to experience some wet snow mixing in with rain showers include northern and eastern Minnesota to northern Wisconsin, the Upper Peninsula of Michigan and an area over the northern interior of the Lower Peninsula of Michigan.

While Simon remains a threat to portions of Mexico in the eastern Pacific after the storm took shape early Thursday morning about 135 miles west-southwest of Manzanillo, a typhoon in the western Pacific is eyeing Japan.

Japan, including Tokyo and the site of Saturday's deadly volcanic eruption, remains in the path of Phanfone.

Typhoon Phanfone rapidly intensified on Thursday, local time, with its strength increasing from that of a Category 1 hurricane to a Category 4 hurricane in 12 hours.

Phanfone, while weakening slightly, is expected to graze the islands from Amami northward with rain and wind Saturday night through Sunday.

The island of Osumi and the nearby southeastern coast of Kyushu are at risk for damaging wind gusts of 130 and 160 kph (80 and 100 mph).

Several AccuWeather.com Staff Writers and Meteorologists contributed content to this article.