Cascade Locks State Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Cascade Locks State.

Use the Radar Maps link provided to understand the trajectory of a storm.

Special Weather Statement issued November 20 at 9:22AM PST by NWS Portland OR

At 921 AM PST, trained weather spotters reported a strong thunderstorm near Ilwaco, or near Long Beach, moving northeast at 40 mph. This storm was producing hailstones up to one half inch in diameter. Hail was also accumulating up to one half inch in depth. This storm is also producing frequent lightning. HAZARD...Half inch hail. SOURCE...Trained weather spotters. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include... Long Beach, Ilwaco, Naselle, Seaview, Deep River, and Chinook. This includes the following highways in Washington... U. S. Highway 101 between mile markers 3 and 34. State Route 4 between mile markers 1 and 10.

Winter Weather Advisory issued November 20 at 8:39AM PST until November 20 at 10:00AM PST by NWS Pendleton OR

* WHAT...Snow above 3500 feet. Additional snow accumulations up to 2 inches. Winds gusting as high as 40 mph. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 10 AM PST this morning. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Snow is expected to continue through the late morning, which could cause slipper road conditions. Gusty winds could also make driving in some areas difficult.

High Wind Warning issued November 20 at 7:03AM PST until November 20 at 10:00AM PST by NWS Pendleton OR

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Foothills of the Blue Mountains of Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

Wind Advisory issued November 20 at 7:03AM PST until November 20 at 10:00AM PST by NWS Pendleton OR

* WHAT...South winds 10 to 20 mph with gusts up to 40 mph. * WHERE...Central Oregon and North Central Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued November 20 at 7:03AM PST until November 20 at 10:00AM PST by NWS Pendleton OR

* WHAT...Southeast winds 15 to 25 mph with gusts up to 45 mph. * WHERE...John Day Basin, Grande Ronde Valley, and Lower Columbia Basin of Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

High Wind Warning issued November 20 at 6:56AM PST until November 20 at 7:00PM PST by NWS Medford OR

* WHAT...South winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Portions of Lake and Modoc counties and far eastern Klamath County, including Lakeview, Valley Falls, Bly, Paisley, Summer Lake, Silver Lake, Adel, Fort Rock, the Warner and Hart mountains, and portions of Highways 395, 31, and 140. Northeast Siskiyou and southwest Klamath counties, including Dorris, Macdoel, Klamath Falls, Bonanza, and portions of Highways 97, 140, 39, and 139. * WHEN...Until 7 PM PST this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

Flood Watch issued November 20 at 4:27AM PST until November 22 at 8:00PM PST by NWS Medford OR

* WHAT...Flooding caused by continued excessive rainfall is possible. * WHERE...Portions of northern California including western Siskiyou County, and southwest Oregon including Curry County, Josephine County, Siskiyou Mountains, and Southern Oregon Cascades. * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers and creeks and low-lying or flood-prone areas. Flooding may also occur in poor drainage and urban areas as storm drains and ditches may become clogged with leaves and other debris. There will be an increased risk of rock fall and landslides on steep slopes and road cuts. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

Winter Storm Warning issued November 20 at 4:23AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...For the Winter Storm Warning above 4000 ft in the high central Cascades in Klamath, Jackson and Douglas Counties, heavy snow expected. Total snow accumulations between 10 and 18 inches. Winds gusting as high as 75 mph over exposed terrain. * WHERE...The south central Oregon Cascades, including Crater Lake, Diamond Lake, and portions of Highway 62, 138, and 230. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Whiteout conditions are possible and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. Very strong winds could cause extensive damage to trees and power lines. Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Winter Storm Warning issued November 20 at 4:23AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...Heavy wet snow above 4000 ft in the southern Cascades and Siskiyous in Jackson and Klamath Counties. Additional snow accumulations between 5 and 10 inches with up to 18 inches over high remote terrain. Winds gusting as high as 70 mph. * WHERE...Siskiyou Mountains and Southern Oregon Cascades including Howard Prairie, Lake of the Woods, Siskiyou Summit on Interstate 5, and Highways 66 and 140. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. Very strong winds could cause extensive damage to trees and power lines. Roads, and especially bridges and overpasses, will likely become slick and hazardous. Blowing snow could result in greatly reduced visibilities at times.

Winter Storm Warning issued November 20 at 4:23AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...Heavy snow expected. Additional snow accumulations between 3 and 6 inches. South winds 35 to 45 mph with gusts up to 60 mph. For the Winter Weather Advisory, snow expected. Additional snow accumulations between 2 and 4 inches. South winds 30 to 40 mph with gusts up to 50 mph. * WHERE...The Warning is for portions of Highway 97 near Chemult and the junction of Highways 97 and 138 as well as higher terrain in eastern Klamath County and western Lake County. The advisory is for portions of Highway 97 south of the junction with Highways 97 and 138 and near Crescent, portions of Highway 31 east of Crescent. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday evening commutes. Very strong winds could cause extensive damage to trees and power lines. Blowing snow could result in greatly reduced visibilities at times.

Winter Weather Advisory issued November 20 at 4:23AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...Heavy snow expected. Additional snow accumulations between 3 and 6 inches. South winds 35 to 45 mph with gusts up to 60 mph. For the Winter Weather Advisory, snow expected. Additional snow accumulations between 2 and 4 inches. South winds 30 to 40 mph with gusts up to 50 mph. * WHERE...The Warning is for portions of Highway 97 near Chemult and the junction of Highways 97 and 138 as well as higher terrain in eastern Klamath County and western Lake County. The advisory is for portions of Highway 97 south of the junction with Highways 97 and 138 and near Crescent, portions of Highway 31 east of Crescent. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday evening commutes. Very strong winds could cause extensive damage to trees and power lines. Blowing snow could result in greatly reduced visibilities at times.

Winter Weather Advisory issued November 20 at 4:23AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...Snow expected. Additional snow accumulations between 3 and 6 inches. Winds gusting as high as 60 mph over high exposed terrain. * WHERE...In California, Modoc County County. In Oregon, Klamath Basin County. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause extensive damage to trees and power lines.

High Surf Advisory issued November 20 at 2:32AM PST until November 20 at 7:00PM PST by NWS Portland OR

* WHAT...Large waves and hazardous surf conditions. Breakers up to 23 to 28 feet. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Until 7 PM PST this evening. * IMPACTS...Destructive waves may wash over beaches, jetties, and other structures unexpectedly. People can be swept off rocks and jetties and drown while observing high surf. Minor beach erosion may damage coastal properties and buildings. Higher than normal water run-up is expected on beaches and low-lying shoreline.

High Surf Warning issued November 20 at 2:10AM PST until November 20 at 4:00PM PST by NWS Medford OR

* WHAT...Dangerously large breaking waves of 25 to 30 feet. * WHERE...All beaches and coastlines of Douglas, Coos, and Curry counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Extremely large breaking waves will create very hazardous conditions along beaches and area shorelines. Waves will inundate beaches, push large logs up the beach, and surge into normally dry areas. Infrastructure damage and significant beach erosion can be expected. * ADDITIONAL DETAILS...The largest breaking waves are expected along south facing shorelines, such as the beaches near Brookings, Port Orford, and Cape Blanco. While conditions should improve late this afternoon, large breaking waves of 20 to 25 feet could continue into the late evening hours. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Wind Advisory issued November 20 at 1:55AM PST until November 20 at 10:00AM PST by NWS Boise ID

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Harney County. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued November 20 at 1:55AM PST until November 20 at 10:00AM PST by NWS Boise ID

* WHAT...Southeast winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Baker County and Oregon Lower Treasure Valley. * WHEN...Until 10 AM PST /11 AM MST/ this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winter Weather Advisory issued November 20 at 1:37AM PST until November 20 at 10:00AM PST by NWS Portland OR

* WHAT...Wet snow. Additional snow accumulations up to 5 inches. Winds gusting as high as 40 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Plan on hazardous road conditions. Blowing snow could significantly reduce visibility at times. * ADDITIONAL DETAILS...Highest snow accumulations above 4000 feet.