Our Proprietary 10-Day Forecast

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Current warnings over West Slope, Oregon
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over West Slope, Oregon red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over West Slope, Oregon red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Washington County, OR

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near West Slope, Oregon

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in West Slope, OR please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over West Slope, OR

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in West Slope, OR, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near West Slope, Oregon

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Washington County, Oregon

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
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View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
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Climate Summary
(made with AI, use with caution)
West Slope, Oregon

Climate Summary

    •   Köppen Climate Classification

Csb (Warm-summer Mediterranean)

    •   Average Annual Temperature

52.9°F (11.6°C)

    •   Average Annual Precipitation

44.4 inches (112.8 cm)

    •   Average Annual Snowfall

10.9 inches (27.7 cm)

Seasonal Characteristics

    •   Spring (March-May)

Mild temperatures, increasing precipitation, and occasional snowfall.

    •   Summer (June-August)

Warm and dry, with occasional thunderstorms.

    •   Fall (September-November)

Cooling temperatures, increasing precipitation, and occasional snowfall.

    •   Winter (December-February)

Cold and wet, with occasional snowfall and freezing temperatures.

Precipitation

    •   Precipitation is relatively evenly distributed throughout the year, with a slight peak in winter.
    •   Most precipitation falls as rain, but snow can occur in the winter months.
    •   The wettest month is December, with an average of 6.5 inches (16.5 cm) of precipitation.
    •   The driest month is July, with an average of 0.5 inches (1.3 cm) of precipitation.

Temperature

    •   Temperatures are generally mild year-round.
    •   The warmest month is July, with an average high temperature of 82.6°F (28.1°C).
    •   The coldest month is January, with an average low temperature of 31.4°F (-0.3°C).
    •   Extreme temperatures below 0°F (-17.8°C) or above 100°F (37.8°C) are rare.

Other Climatic Features

    •   Wind

Prevailing winds are from the southwest, with average speeds of 5-10 mph (8-16 km/h).

    •   Humidity

Relative humidity is generally moderate, with an average of 65%.

    •   Sunshine

West Slope receives an average of 2,200 hours of sunshine annually.

Climate Change Impacts

    •   Climate change is projected to lead to warmer and drier conditions in West Slope.
    •   Increased temperatures may result in more frequent and intense heat waves.
    •   Decreased precipitation may lead to water shortages and increased wildfire risk.

Facts & Historical Information
(made with AI, use with caution)
West Slope, Oregon, is nestled in the foothills of the Coast Range mountains and is known for its natural beauty and rich history.

Natural History

    •   West Slope is home to a diverse range of plant and animal species due to its varied topography and climate.

    •   The area's forests are dominated by Douglas fir, western hemlock, and red alder, providing habitat for numerous wildlife species, including deer, elk, and black bears.

    •   The nearby Willamette River and its tributaries support a variety of fish species, including salmon, steelhead, and trout.

Science

    •   West Slope is the site of the Oregon State University's West Slope Research and Extension Center, which conducts research on sustainable agriculture, forestry, and natural resources management.

    •   The center's scientists have made significant contributions to the understanding of forest ecology and wildlife conservation.

Personalities

    •   West Slope was the home of pioneer settler William Meek, who played a key role in the establishment of the Oregon Trail.

    •   The area was also home to naturalist John Muir, who spent time exploring the Coast Range mountains and advocating for their conservation.

Tourist Attractions
1. Champoeg State Heritage Area: This historic site marks the birthplace of Oregon's provisional government and is a popular destination for history buffs and outdoor enthusiasts alike. Visitors can explore the park's many trails, picnic areas, and historic buildings.

2. Willamette Valley Vineyards: The Willamette Valley is home to over 500 wineries, making it a great place to sample some of Oregon's finest wines. Visitors can take a guided tour of a vineyard, enjoy a wine tasting, or simply relax in the beautiful surroundings.

3. Oregon Garden: This botanical garden is home to over 20,000 plants from around the world. Visitors can stroll through the garden's many themed gardens, including the Japanese Garden, the Rose Garden, and the Children's Garden.

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