(Updated) — OMAHA, Neb. (AP) – A slow-moving storm has dropped nearly 2 feet of snow in western Nebraska as it moves east through Iowa, covering highways and making travel treacherous. The interstates and major highways remained open Friday morning despite the blowing snow and drifting.

In Iowa, late Thursday night, numerous accidents were reported on I-80 near Avoca, with motorists contending with quickly changing weather conditions, from rain to heavy snow, depending on where you were along the roadway. The National Weather service even issued its first Severe Thunderstorm Warning of the season for eastern Cass northern Adair and southern Guthrie Counties, where hail was being reported.

Iowa officials reported that an accident had forced closure of a northbound lane on Interstate 35 in northern Iowa. No fatalities have been reported. A blizzard warning remained in effect for far northeast Nebraska and most of northwest Iowa.

In Nebraska, National Weather Service meteorologist Mike Jamski says the big system let loose Wednesday night over Alliance in the Nebraska Panhandle. Snowfall of 22 inches was reported there by Thursday afternoon. He says the total could reach 25-26 inches by the storm’s exit this (Friday) afternoon.