Weather Alert in Maryland
Winter Storm Warning issued February 22 at 2:06PM EST until February 23 at 10:00AM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Washington; Frederick; Northwest Montgomery; Clarke; Northern Fauquier; Western Loudoun; Eastern Loudoun; Morgan; Berkeley; Jefferson
DESCRIPTION: * WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches for the lower elevations. For elevations elevations above 1000 feet, snow accumulations of 6 to 8 inches are expected with localized amounts around a foot on the ridge tops of the Catoctin Mountains. Northwest winds gusting around 30 to 45 mph overnight through Monday. * WHERE...Portions of central and north central Maryland, northern and northwest Virginia, and panhandle West Virginia. * WHEN...Until 10 AM EST Monday. Rain or a rain and snow mix will change to snow between 4 PM and 6 PM late this afternoon and evening. The steadiest snow will be this evening before tapering off overnight into early Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Monday morning commute. * ADDITIONAL DETAILS...Visibility will be reduced to below one-half mile at times in falling and blowing snow overnight into Monday 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 Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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