Weather Alert in California
Winter Storm Warning issued February 15 at 9:57AM PST until February 19 at 9:00AM PST by NWS San Diego CA
AREAS AFFECTED: San Bernardino County Mountains
DESCRIPTION: * WHAT...Heavy snow expected. For first round Monday into early Tuesday, 6-10 inches expected between 6000-7000 ft, 10-18 inches expected 7000-8000 ft, and up to 30 inches above 8000 ft. South winds gusting to 40-60 mph on the ridges and desert slopes. Occasional light snow showers Tuesday. Widespread moderate snow late Tuesday into Wednesday morning, with additional totals 8-15 inches between 6000-7500 ft. Light snow showers expected Thursday. Stronger southwest winds with gusts in excess of 70 mph along the desert slopes possible late Tuesday and Wednesday. A few additional inches of snow expected Thursday. * WHERE...San Bernardino County Mountains. * WHEN...From 10 AM Monday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...For the first round Monday, snow levels will start around 6800-7500 ft and fall to near 5000 ft by early Tuesday morning. Snow levels lowering to around 4000 ft Wednesday morning. Impacts to I-15 near the summit of the Cajon Pass possible Wednesday morning and Thursday morning.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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