November 2020 Weather and Climate Summary Forecast Gregory V. Jones, Linfield University - November 3, 2020 ... All four locations ended the April through October calendar period above the 1981-2010 normals for 2020 (6 to 25%), with eastern Oregon (Milton-Freewater and the Walla Walla region) continuing to be closer to the long-term average (see Appendix Figure 1). Then a heavy rain could saturate and destabilize an entire slope, causing it to slide. Thank you for reading the Oregon Health Authority's (OHA) Climate and Health in Oregon 2020 report. Above-average precipitation was observed across parts of the West, lower Mississippi Valley, Great Lakes, Southeast, Mid-Atlantic and New Engla⦠The sky glows red as the Two Four Two Fire burns in the distance in this image taken overnight Sept. 7-8, 2020 outside Chiloquin, Ore. Evan Wright/Fremont-Winema National Forest / In most years this ordinary rainfall event would not have attracted attention. Summary: In spite of days of ... (Figure 2). ... per year or greater to the Oregon Department of Environmental Quality (DEQ). Rain is expected to fall on Oregonâs wildfires Thursday night. That is 1.55 inches below average to the date.Average water year rainfall is 18.35 inches. Averages are for Portland International Airport, which is 7 miles from Portland. 05-03-2020 43°F to 58°F. Scientists arenât sure why that is, but they have a few hypotheses. Using data on past flows and computer models, when heavy rain comes after fires the National Weather Service in California issues warnings about the landslide risks in specific locations. Your comments will help to ensure that Oregonâs work on climate change and public health addresses issues that community partners care about. Precipitation in the state varies widely: some western coastal slopes approach 200 inches (5,100 mm) annually, while the driest places, such as the Alvord Desert (in the rain shadow of Steens Mountain) in eastern Oregon, get as little as 5 inches (130 mm). Draft proposals respond to 2020 Climate Emergency Declaration by establishing fees generated from Portlandâs largest polluters to accelerate environmental justice initiatives. âThey have this great empirical understanding of what does and doesnât create this post-fire debris flow process,â Dr. Roering said. Timeframe » 4. Weekly Water and Climate Update -Updated weekly; Monthly Basin Summary Reports -Including snowpack, precipitation, and reservoir data; Daily SNOTEL Data. It quickly merges into channels as it races down the steep slopes, creating fast-moving rivers of mud and debris. Map-Based Access to Oregon SNOTEL Data (Clickable GIS maps) NWCC Interactive Map of Data Sites (Includes access to all SNOTEL, SNOLITE, snow course, precipitation, reservoir, & streamflow sites) Monthly averages Salem Longitude: -123.003, Latitude: 44.9095 Average weather Salem, OR - 97302. Oregon weather: Rain expected Monday, Tuesday - oregonlive.com The April precipitation totalfor the contiguous U.S. was 2.47 inches, 0.05 inch below average, and ranked in the middle third of the 126-year period of record. These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Salem (Oregon) in march. Based on 2019 data, approximately 35 facilities in Portland would be subject to the fee. Annual Weather Averages Near Portland. Maximum temperature yesterday: 48 °F (at 5:21 pm) Minimum temperature yesterday: 37 °F (at 2:56 am) Average temperature yesterday: 44 °F The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Oregon. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more. ... (Oregon) in march 2020: 01-03-2020 36°F to 49°F. These kinds of slides occur when the forest floor is blanketed in waxy compounds from burning trees, so the normally absorbent soil sheds more water. Chris Pietsch/The Register-Guard, via Associated Press, United States Geological Survey in California. Station Data. 1. The Oregon Coast Range run from about Newport, Oregon, south to Port Orford. Home | Privacy & Cookies | Contact | About. âI think the risk to these communities is substantial,â he said, especially if downpours bring a half-inch of rain or more per hour. Try our corporate solution for free! Debris flows have been studied extensively by the United States Geological Survey in California, where severe fires are far more common than on the western slope of the Cascades. In Oregon, potentially more so than in California, in the next decade there will be a continuing and significant threat from the current fires, Dr. Roering said. Corvallis Temperature Yesterday. But there is nothing ordinary about 2020. Since October 1, 2020 - Water Year.................8.52 inches. Climate and Health in Oregon | Introduction 8 This 2020 report was developed over a shorter period but is supported by a larger body of climate and health evidence in both the literature and in our collective lived experience. 04-03-2020 45°F to 52°F. $1 for 6 months. Sept. 18, 2020 Rain in the Cascades in northern Oregon brought some relief Friday to crews trying to corral the large wildfires burning there. Based on weather reports collected during 1985â2015. Without the roots holding it in place, the soil can give way as a discrete mass and slide down the mountain, Dr. Roering said. In February 2020, more than 200 millimeters of rain fell in the UK, making it the wettest month since December 2015. âWe donât have that advantage up here.â. From January 1st for the Calendar Year......1.98 of an inch. In one of the 2018 California slides, which devastated the town of Montecito, the flow was up to 15 feet thick and moved at about 20 miles an hour. Each place has a total for the amount of precipitation it usually receives in a year. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more. October 6, 2020 | Weather & Climate Forecasts | 0 Comments. Monthly: 1981-2010 normals History: 2007-2019 Staff representatives from over 20 agencies came together to engage in the State of Oregonâs . At a Glance. Oregon toward a more equitable,climate-adapted future. PORTLAND, Oregon â So far PDX has picked up about 1.6â³ of rain since Saturday afternoon. ... Oregon, where measurable rain, typically a minimum in the summer dry season, hasn't fallen since the week before Father's Day. SUBSCRIBE NOW. 1. Rainfall Outlook There have been reports of slides in the Gorge, and in the Coast Range where rainfall was quite a bit heavier. Save 98%. âThatâs when I start to worry.â. Oregon Rain Brings New Threat After the Fires: Landslides. Average rainfall in January for Medford is 2.43 inches. (212) 419-8286. hadley.ward@statista.com. Josh Roering, a geologist at the University of Oregon, said the region also faced a significant longer-term landslide hazard, beginning three or four years from now, when the roots of burned trees lose their strength to hold the soil in place. Oregon SNOTEL Snow/Precipitation Update Report; Based on Mountain Data from NRCS SNOTEL Sites **Provisional data, subject to revision** Data based on the first reading of the day (typically 00:00) for Thursday, February 18, 2021 Basin Site Name Elev (ft) Snow Water Equivalent Water Year-to-Date Precipitation ; Current (in) Median (in) Pct of Median Current (in) Average (in) Pct of Average ; ⦠When heavy rains come, the runoff is powerful enough to pick up boulders, tree limbs and other vegetation. A driver ignored a barricade and got stuck on a flooded roadway in Bellevue, Washington, on Friday, Dec. 20, 2019, as record rainfall hit parts of Washington and Oregon. Over half an inch of rain fell over Salem, Oregon, and much of western Oregon, on September 18. ... Sept. 18, 2020 3:48 pm ET WSP. After a deluge of rain, Oregon's weather will dry out, with the exception of some much-needed snow in the mountains. Covered ⦠But the National Weather Service warned that the rain was bringing a new threat: landslides in the steep, burned-out terrain. The river, which flows into the Willamette Valley, is the site of the Holiday Farm Fire that has burned more than 170,000 acres. Rain in the Cascades in northern Oregon brought some relief Friday to crews trying to corral the large wildfires burning there. The annual precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center. 06-03 ⦠The effect is the same for clear-cutting or a severe fire: With the trees on a mountainside gone, the roots eventually deteriorate. View » Daily Climate Report (CLI) Preliminary Monthly Climate Data (CF6) Record Event Report (RER) This survey is a way for you to provide feedback on the report. Monthly Rainfall Information for Atlanta, Athens, Macon & Columbus September 13, 2020. 03-03-2020 47°F to 58°F. Most locations also have information on the number of days with wet weather. A forestry official surveyed damage from the Holiday Farm Fire near Deerhorn, Ore., on Thursday. You can jump to a separate table for each region of the state: Oregon Coast, Willamette Valley, Cascade Mountains, Central Oregon and Eastern Oregon. Portions of western Oregon are closer to average year to date, while western and eastern Washington, the Blue Mountains of Oregon, much of Idaho, and the California ⦠The danger was imminent, the Weather Service said, because the heavy rains could create torrents of mud and dead tree limbs that could thunder down the slopes and sweep into communities, with devastating effects. 02-03-2020 40°F to 47°F. NOAA's 1981-2010 Climate Normals. The risk is greatest from about 3 to 10 years after the trees are gone, before new growth develops an extensive root system, he said. October 2020 Weather and Climate Summary Forecast Gregory V. Jones, Linfield University - October 3, 2020. 2. The wildfires that occurred this year brought climate and health impacts into clear focus, as Heavy rainfall and thunderstorms in Oregon provided some relief to one of the states hardest hit by wildfires in the West. Copyright © 2021 Current Results Publishing Ltd. The state already experiences these kinds of landslides from clear-cutting by timber companies. The 7-day total precipitation from the National Weather Service show the situation with a wider view (see below). Dr. Roering said towns along the McKenzie River faced an immediate hazard. February 19th, 2021 February 18th, 2021 February 17th, 2021 February 16th, 2021 February 15th, 2021 February 14th, 2021 February 13th, 2021 February 12th, 2021 February 11th, 2021 February 10th, 2021 February 9th, 2021 February 8th, 2021 February 7th, 2021 February 6th, 2021 February 5th, 2021 February 4th, 2021 February 3rd, 2021 February 2nd, 2021 February 1st, 2021 January 31st, 2021 ⦠Most locations also have information on the number of days with wet weather. Evolution of daily average temperature and precipitation in Salem (Oregon) in march. Rain is tapering off across the region this afternoon. Continued from Climate Outlook 2020 - Page 6 Figure 8 (above) From the National Centers for Environmental Prediction (NCEP) and the Climate Prediction Center ⦠Average Annual Precipitation for Oregon. Soil in the Cascades is also rockier, which may help it stay more absorbent after a fire. Public comment period now open. The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Oregon. While such post-fire landslides are relatively common in California, Dr. Roering said, they are actually rare in Oregon. Compared to ⦠A climate chart for your city, indicating the monthly high temperatures and rainfall. A rain gauge at Portland International Airport recorded just under 2 inches of rainfall in the previous 48 hours. Parts of the Willamette Valley have some road ⦠The soil layer in the Cascades is relatively shallow â shallower than in much of California â and can become saturated in a heavy rain. The topography is roughly similar, but the vegetation is different, and when it burns, it may produce fewer of the compounds that make the soil repel water. NWS: Rain to sweep across Oregon, Weather to cause possible ⦠The danger was that one or more areas would be struck by what Dr. Roering called a âCalifornia-styleâ debris flow, like those that occurred north of Los Angeles in January 2018, killing 23 people and causing about $200 million in damage. Location » 3. Rain may help fight wildfires in Oregon, but may bring other problems By Madeline Holcombe , Steve Almasy and Theresa Waldrop, CNN Updated 8:26 PM ET, Thu September 17, 2020 ... (@McGinnessPDX) December 21, 2020. Average temperatures and precipitation amounts for more than 145 cities in Oregon. Climate in Oregon. Product » 2. An excavator working in the debris field near Oso, Washington, where a landslide killed 43 people in 2014. 2020 Climate Change Adaptation Framework (CCAF) planning process, focused on identifying climate risks facing the state and recommending strategies to prepare for those risks. âThere is this longer-term kind of hangover that makes all of Western Oregon areas that have burned vulnerable to a different kind of landslide,â he said. Feedback will help to inform an update to OHA's 2017 Climate and Health Resilience Plan and ⦠National Climatic Data Center. With climate change leading to more extreme rainfall, the risk of this kind of landslide increases. Expect occasional showers this evening. SUBSCRIBE NOW. Each place has a total for the amount of precipitation it usually receives in a year. Heavy downpours can bring destructive mudslides now, or in years to come. The rainfall totals for this precipitation event were extraordinary: some places received nearly 10 inches, and 3-6 inches were commonplace (see totals below for Feb 5-8).
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