Ka duba nassin da ke ƙasa sannan ka amsa tambayar daga baya a cikin wannan yaren kamar nassin: Passage: Strong high-altitude wind carried much of this material east-northeast from the volcano at an average speed of about 60 miles per hour (100 km/h). By 9:45 a.m. ya kai Yakima, Washington, 90 miles (140 km) away, and by 11:45 a.m. it was over Spokane, Washington. A total of four to five inches (100 to 130 mm) of ash fell on Yakima, and areas as far east as Spokane were plunged into darkness by noon where visibility was reduced to 10 feet (3 m) and 0.5 inches (13 mm) of ash fell. Continuing eastward, St. Helens' ash fell in the western part of Yellowstone National Park by 10:15 p.m. and was seen on the ground in Denver, Colorado the next day. A wannan lokacin, an ba da rahoton cewa toka daga wannan fashewar ta fadi nesa da Oklahoma kuma ta kai Spokane, Washington a cikin makonni biyu. Tambaya: A wane lokaci ne toka ta sauka daga Minnesota kuma ta kai Spok
Karfe 11:45 na safe