At least 180,000 people were still in the dark as of Thursday morning in Washington states, Oregon, Idaho and Montana, according to the data. PowerOutage.us This is a figure that tends to increase as the gust of wind spreads eastward.
Measuring gusts of more than 107 mph in Alta, Utah, the mountain resort town southeast of Salt Lake City in the Wasatch Mount Sentinel region in Montana, it has gusts of up to 125 mph. But perhaps the most remarkable measure comes from Laramie, Wyo ̵1; the flat land removed from any mountain – where gusts of 105 mph occurred at 1:18 p.m. Wednesday.
The chants spread to wind gusts between 80 and 95 mph in Wyoming and Montana. Wind gusts in Billings, Montt, hit 69 mph, as in Bozeman, while Great Falls gusts 76 mph and Helena gusts up to 80 mph. Several Montana locations reported record wind speeds in January.
“Usually, the Rocky Mountain Front can count as having the strongest winds in our area,” said Christian Cassell, National Weather Service meteorologist for the Great Falls Office. The effect of the wind diffuses slightly. “
He said the strongest winds started on Wednesday morning after the warm front passed, with sunlight warming enough to rise and blow into the strong winds associated with low tides. A fast-moving air stream about 10,000 feet above the ground creates a momentum that drags it down to the surface.
“Basically, we put a lot of the jet streams down to the surface in Montana,” Cassell said.
The key factor is the critical atmospheric pressure gradient or the change in air pressure over distance. A powerful high pressure system in the west over Idaho and the Columbia River Basin squared with a low force over the southern state of Manitoba. As air travels from high pressure to low pressure, it moves rapidly eastward, rising at speed as it blows over the northern United States and moves north due to Coriolis force.
The strength of the wind is proportional to the altitude where the air pressure changes with distance. It’s like sliding – you’ll zip down hills faster on steeper slopes.
The system shifted eastward late Wednesday, bringing 65 to 80 mph gusts of wind to areas west of the Dakotas and Nebraska.
Later, Glasgow had gusts of 79 mph, just 3 mph, based on the statistics set during the strong thunderstorm on July 3, 2000. Heavy thunderstorms and storms are the times of strong winds. Thunderstorms often bring winds for a short period of time, while the storms last several hours.
“In February we had an amazing wind storm across central Montana,” Cassell said. “In Great Falls felt the damage was a little more important … [it] Localized to Central Montana. This one is very widespread. It goes into all of Canada, Montana, and even southern Wyoming. ”
In Saskatchewan, vehicles are stuck in an area of strong winds and snow. The snowstorm warning was issued by Environment Canada for most of Saskatchewan and Manitoba, along with a freezing rain warning for parts of Manitoba.
Elsewhere, 99 gusts are measured in Glen Haven, Colo., About 10 miles southwest of Fort Collins, while Crisman is just five miles northwest of Boulder with 94 gusts of wind. The mph Breckenridge, a popular ski destination, reported 106 mph gusts of wind.
Truckers were urged outside of I-76 in Colorado.While the I-80 was closed for a time between Cheyenne and Rawlins, Wyo Cheyenne, located in the plains, reported 89 mph gusts of wind after 8 p.m.
Meanwhile, the storm system behind winds is causing blizzards in parts of the Corn Belt, Northern Plains and the Upper Midwest.A blizzard warning is in effect east of James Valley in South Dakota, as well as Watertown and Sioux. Falls, including in most western Iowa and southwest Minnesota, both Des Moines and Sioux City were included in the blizzard warnings, while Minneapolis was surrounded by winter weather advisories.
After some initial snowfall, most snowfall is expected from Thursday night to Friday morning.3 to 5 inches wide will cover most of Iowa, Minnesota, Wisconsin and western Michigan’s Upper Peninsula. More than a half-foot tall and local 10-inch flirt is possible in north-central Iowa and southeastern Minnesota.
The storm system, which brought excellent precipitation to Oregon and Washington state after rotating the atmospheric river into the Pacific Northwest, would push it to the east coast by Friday night. Parts of the East Coast are expected to rain with winter to begin the weekend. But fortunately, the winds in this storm system were reduced at that time.