Weather Alert in Oregon
Winter Storm Warning issued February 18 at 2:09PM PST until February 19 at 10:00AM PST by NWS Medford OR
AREAS AFFECTED: Central Douglas County
DESCRIPTION: ...ANOTHER EPISODE OF LOW ELEVATION SNOW LATE TONIGHT INTO THURSDAY... .Scattered to numerous light snow showers will persist through this evening with snow levels around 1500 to 2000 feet and accumulation of up to 2 inches. The next cold front will follow with widespread accumulations of snow late tonight into Thursday morning and snow levels around 1000 to 1500 feet. Light snow showers will then taper off into Thursday afternoon while snow levels rise to 2000 feet, except for snow showers lingering into Thursday evening for eastern Klamath, Lake, and Modoc Counties. * WHAT...For the Winter Storm Warning above 1500 ft, heavy snow. Additional snow accumulations 3 to 8 inches. For the Winter Weather Advisory below 1500 ft, wet snow. Additional snow accumulations up to 3 inches, with mixed precipitation at elevations below 800 feet. The majority of snow is expected between 10 PM PST Tonight and 5 AM PST Thursday, with snow tapering off by 10 AM PST. * WHERE...For the Winter Weather Advisory below 1500 ft, this includes Roseburg, Elkton, Sutherlin, Camas Valley and Canyonville as well as portions of I-5, including Roberts Mountain Pass, and Highways 42 and 138. For the Winter Storm Warning above 1500 ft, this includes Glendale and Tiller as well as portions of I-5 south of Canyonville and Canyon Creek Pass on I-5 around 2000 ft. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Thursday morning commute. * ADDITIONAL DETAILS... Visit weather.gov/mfr/winter for additional snow probabilities
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit tripcheck.com for road information. Slow down and use caution while traveling. Call 511 or visit tripcheck.com for road information.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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