ROSEBURG, Ore. - A 20-mile stretch of Interstate 5 faced a severe thunderstorm warning Tuesday evening.
At 3:42 p.m., National Weather Service doppler radar indicated a severe thunderstorm capable of producing quarter size hail and damaging winds in excess of 60 mph. until about 4:30 p.m.
The storm was 26 miles northeast of Grants Pass, moving northwest at 20 mph.
At 4:05 p.m., the storm was 7 miles east of I-5.
At 4:29 p.m., forecasters extended the warning until 5:15 p.m.
The storm had weakened by 5:15 p.m., with forecasters saying lightning and rain would continue until 6 p.m. but the threat of hail and gusty winds had subsided.
Very heavy rain and frequent lightning were expected with this storm, forecasters said.
The warning area includes Tri-City, Tiller, Canyonville and Riddle and includes Interstate 5 between mile markers 87 and 106.
"This is a dangerous storm," the National Weather Service in Medford said. "If you are in its path, prepare immediately for damaging winds, destructive hail and lightning. People outside should seek shelter, preferably inside a strong building but away from windows."
At 3:47 p.m., radar was tracking a strong thunderstorm near Butte Falls, 19 miles northeast of Medford. Forecasters expect hail up to one-half inch in diameter, along with heavy rain.
Areas affected by this storm include Butte Falls, Prospect State Scenic Viewpoint and Prospect.
"This storm may intensify," forecasters warned.
Earlier, the National Weather Service in Medford issued a severe thunderstorm warning for south central Douglas County until 3:45 p.m.
At 3:17 p.m., weather service doppler radar indicated a severe thunderstorm capable of producing quarter size hail and damaging winds in excess of 60 mph.
This storm was located near Tiller, 33 miles southeast of Roseburg, moving north at 15 mph.
Heavy rain and frequent lightning are also expected with this storm.
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