Weather Alert in Oregon

Recent Locations: Cascadia, OR   Plummer, ID   Springfield, VA  
Current Alerts for Cascadia, OR: Extreme Heat Warning

Fire Weather Watch issued August 11 at 1:28AM PDT until August 12 at 8:00PM PDT by NWS Medford OR

AREAS AFFECTED: Western Rogue Basin including the Illinois Valley; Eastern Rogue Valley

DESCRIPTION: The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Tuesday afternoon through Tuesday evening. * IMPACTS...Moderate to strong winds combined with critically low relative humidity can lead to rapid growth and spread of new and existing fires. Outdoor burning is banned during fire season. * AFFECTED AREA...Portions of the Rogue Valley in Fire Weather Zone 622, including Medford, White City, Gold Hill, Jacksonville, Talent, Phoenix, and Ashland. In Fire Weather Zone 620, portions of the Rogue and Illinois valleys, including Merlin, Grants Pass, Wilderville, Murphy and Provolt. * WIND...Northwest 10 to 15 mph with gusts of 20 to 25 mph. * HUMIDITY...10 to 15 percent. * DETAILEDURL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

INSTRUCTION: Follow all fire restrictions. Avoid activities that could cause sparks. Visit weather.gov/medford/wildfire for links to fire restrictions in your area. If you have not packed your go kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life- threatening. Check weather.gov/medford for forecast updates and a possible upgrade of the this watch to a Red Flag Warning.

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Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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