Weather Alert in Oregon
Winter Weather Advisory issued February 17 at 12:03PM PST until February 19 at 10:00AM PST by NWS Medford OR
AREAS AFFECTED: Eastern Curry County and Josephine County
DESCRIPTION: * WHAT...For the Winter Weather Advisory below 1500 ft, wet snow expected. Additional snow accumulations of 1 to 3 inches. For the Winter Storm Warning above 1500 ft, heavy snow expected. Additional snow accumulations 3 to 6 inches for the passes north of I-5, and the Illinois Valley except up to 10 inches for the southern portions of the Illinois Valley. 1 to 2 ft in the Kalmiopsis Wilderness region. * WHERE...For the Winter Weather Advisory below 1500 ft, this includes Grants Pass, Wilderville, Merlin, Galice and Agness as well as portions of I-5 and Highway 199. For the Winter Storm Warning above 1500 ft, this includes Cave Junction, Obrien, Selma and Wolf Creek. This also includes portions of I-5 and Highway 199 and the Sexton Pass, Smith Hill and Stage Pass on I-5, Hayes Hill on Highway 199 and Bear Camp road in the Kalmiopsis Wilderness. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the evening and morning commutes. * ADDITIONAL DETAILS...Precipitation will be lighter and more showery tonight into Wednesday with mostly light accumulations. Another round of heavier snowfall is expected Wednesday night into Thursday. 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 Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - 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
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