NOAA Current Watches-OR

* WHAT...Sub-freezing temperatures as low as 30 degrees in Oregon valleys and as low as 25 degrees in California valleys. * WHERE...In California, the Shasta and Scott valleys, the lower Klamath River valley, and the Mount Shasta region. In Oregon, the Rogue, Applegate, and Illinois valleys. * WHEN...From midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...For the Frost Advisory, low temperatures between 33 and 36 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Oregon Lower Treasure Valley. * WHEN...For the Frost Advisory, from 3 AM to 9 AM MDT Friday. For the Freeze Watch, from late Friday night through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...For the Frost Advisory, low temperatures between 33 and 36 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Oregon Lower Treasure Valley. * WHEN...For the Frost Advisory, from 3 AM to 9 AM MDT Friday. For the Freeze Watch, from late Friday night through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...South Willamette Valley, Cascade Foothills of Marion and Linn Counties, and Lane County Cascade Foothills. * WHEN...From midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s, coldest in the Parkdale area. * WHERE...Upper Hood River Valley. * WHEN...From midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Snow expected above 4000 feet. Wet snow accumulations of 2 to 5 inches. * WHERE...Cascades of Marion, Linn, and Lane Counties above 4000 feet, including Santiam Pass and Willamette Pass. * WHEN...Until 6 PM PDT this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions.

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...In Oregon, John Day Basin. In Washington, Kittitas Valley, Simcoe Highlands, and Yakima Valley. * WHEN...From this evening through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...Foothills of the Northern Blue Mountains of Oregon. * WHEN...From this evening through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 25 degrees are possible. * WHERE...In California, the Shasta and Scott valleys, the lower Klamath River valley, and the Mount Shasta region. In Oregon, the Rogue, Applegate, and Illinois valleys. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 28 degrees possible in valleys west of the Cascades, excluding the Umpqua valley. * WHERE...In California, the Shasta and Scott valleys, the lower Klamath River valley, and the Mount Shasta region. In Oregon, the Rogue, Applegate, and Illinois valleys. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Wet snow expected Above 4000 feet. Total snow accumulations up to 4 inches. * WHERE...Cascades of Lane County and Cascades of Marion and Linn Counties. * WHEN...From 4 AM to 6 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions.

* WHAT...Sub-freezing temperatures as low as 28 degrees possible in valleys west of the Cascades, excluding the Umpqua valley. * WHERE...In California, the Shasta and Scott valleys. In Oregon, the Rogue, Applegate, and Illinois valleys. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...In Oregon, John Day Basin. In Washington, Kittitas Valley, Simcoe Highlands, and Yakima Valley. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Snow expected above 4000 feet. Total snow accumulation 4 to 7 inches. * WHERE...Cascades of Lane, Marion, and Linn Counties, including Willamette Pass and Santiam Pass. * WHEN...From 4 AM to 6 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning and evening commutes.

* WHAT...A moderate risk of sneaker waves is expected. * WHERE...All beaches and shorelines of Douglas, Coos, and Curry counties. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The Oregon Department of Environmental Quality, and the Lane Regional Air Protection Agency has continued an Air Quality Advisory, which is in effect until noon PDT Tuesday. An Air Quality Advisory for Smoke remains in effect. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels at times through Tuesday morning. Conditions are expected to improve thereafter. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. More information about air quality can be found at: www.oregon.gov/DEQ www.lrapa.org

* WHAT...A moderate risk of sneaker waves is expected. * WHERE...All beaches and shorelines of Douglas, Coos, and Curry counties. * WHEN...From 8 am pdt this morning through this evening. * IMPACTS...Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * ADDITIONAL DETAILS...The risk of sneaker waves is higher on an incoming or rising tide. The incoming tide will occur this morning. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Monday. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning. * ADDITIONAL DETAILS...A westerly swell of 10-12 ft with a dominant period of 15-17 seconds will impact the coastline on Monday and lead to a high sneaker wave threat.

* WHAT...A moderate risk of sneaker waves is expected. * WHERE...All beaches and shorelines of Douglas, Coos, and Curry counties. * WHEN...From Monday morning through Monday evening. * IMPACTS...Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * ADDITIONAL DETAILS...The risk of sneaker waves is higher on an incoming or rising tide. The incoming tide will occur Monday morning. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North and Central Coast Range Valleys of Oregon. * WHEN...Until noon PDT today. * IMPACTS...Low visibility could make driving conditions hazardous.