Weather Alert in Pennsylvania
Winter Storm Warning issued February 21 at 1:43PM EST until February 24 at 1:00AM EST by NWS State College PA
AREAS AFFECTED: Cambria; Somerset
DESCRIPTION: ...IMPACTFUL WINTER STORM TO BRING HEAVY SNOWFALL TO CENTRAL PENNSYLVANIA... * WHAT...Heavy snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 40 mph. * WHERE...Cambria and Somerset Counties. * WHEN...From 1 AM Sunday to 1 AM EST Tuesday. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Snowfall totals on the ridgetops will be locally higher due to the enhanced upslope snow.
INSTRUCTION: Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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.
Next Topic: Cumulus Clouds
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