SPOKANE, Wash - A wildfire burning in dry grasslands in central Washington state has grown dramatically.

The lightning-caused Sutherland Canyon fire, burning 15 miles south of East Wenatchee, jumped from 16 square miles on Wednesday to 80.3 square miles on Thursday.

A Level 2 evacuation notice issued earlier for areas near Quincy and Monument Hill remain in effect. That means residents but be ready to leave at a moment's notice.

Chief Deputy Darrik Gregg with Grant County Sheriiff's Office Emergency Management says the fire was about 50 percent contained Thursday night.

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The nearby Spartan Fire is about 60 percent contained and is burning over 14 square miles. That fire threatened about 80 homes.

Meanwhile, a fire burning near Yakima, Washington, has prompted the mandatory evacuation of about 20 homes, with the occupants of another 100 homes told to be ready to leave at any minute. That fire was 4.3 square miles.

The combined size of the three fires is 98.6 square miles. The city of Seattle is a shade under 84 square miles.

Photos: Lightning strikes spark Eastern Washington fires