Weather Alert in California
Winter Weather Advisory issued February 15 at 11:20AM PST until February 19 at 10:00AM PST by NWS Medford OR
AREAS AFFECTED: Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
DESCRIPTION: ...LOW SNOW LEVELS WITH MULTIPLE ROUNDS OF PRECIPITATION... .A sharp cold front will push through the region Monday night into Tuesday morning with a cold air mass to follow through at least Thursday. Snow levels will quickly lower from around 3000 ft during the day Monday to around 1000-1500 ft late Monday night into the early hours of Tuesday. Multiple waves of precipitation will move through the region while this cold air mass is in place, bringing multiple opportunities for low elevation snow. This will be a long duration event, and after the initial front Monday night, precipitation will become more showery, resulting in periods of spotty and quick accumulations. The values reflected below indicate totals over a 72 hour period from 10pm Monday through 10pm Thursday. Daytime heating will result in snow levels rising to around 2000-2500 ft during the daylight hours, then lower back down during the overnight periods. The best chances for accumulating snow down to valley floors will be during the overnight and early morning hours. * WHAT...Snow expected. Total snow accumulations 2 to 6 inches, with 6 to 10 inches expected across the Modoc, along Highway 97 north of Chiloquin and the higher terrain of the Warners. Winds gusting as high as 40 mph over high and exposed terrain. * WHERE...Klamath Basin and Winter Rim in Klamath county and Lake County, Northeast Siskiyou and Northwest Modoc Counties, and Modoc County. Including the locations of...Dorris, Macdoel, Tulelake, Adin, Alturas, Canby, Day, Likely, Klamath Falls, Olene, Chemult, Crescent, Beatty, Bly, Sprague River, Adel, Fort Rock, Lakeview, Valley Falls, Paisley. This also includes the following passes or notable locations... Cedar Pass on state highway 239 at 6323 ft. Warner Mountain Summit on state highway 140 at 5850 ft. * WHEN...From 4 AM Tuesday to 10 AM PST Thursday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. * ADDITIONAL DETAILS...The heaviest snow is expected Monday night into early Tuesday morning. Visit weather.gov/mfr/winter for snow probabilities.
INSTRUCTION: Slow down and use caution while traveling. In California, call 511 or visit quickmap.dot.ca.gov for road information. In Oregon, call 511 or visit tripcheck.com for road information.
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
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Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
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