Weather Alert in Pennsylvania
Blizzard Warning issued February 22 at 2:56AM EST until February 23 at 6:00PM EST by NWS Mount Holly NJ
AREAS AFFECTED: Delaware; Philadelphia; Eastern Montgomery; Upper Bucks; Lower Bucks
DESCRIPTION: ...POTENTIALLY HISTORIC WINTER STORM WILL IMPACT THE REGION THROUGH MONDAY... .A major winter storm is expected to develop today, impacting the region with very heavy, crippling snowfall and areas of blizzard conditions. Precipitation will develop today, changing to all snow this afternoon and evening. The most severe conditions and heaviest snowfall will occur tonight, with snow gradually tapering off during the daytime Monday. Record breaking snowfall totals are possible. * WHAT...Blizzard conditions expected. Total snow accumulations between 16 and 22 inches. Winds gusting as high as 45 mph. * WHERE...Delaware, Eastern Montgomery, Lower Bucks, Philadelphia, and Upper Bucks Counties. * WHEN...From 10 AM this morning to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Gusty winds could bring down tree branches and result in isolated power outages. * ADDITIONAL DETAILS...Snowfall rates could exceed 2 inches per hour. Locally higher snowfall amounts and significant drifting of snow possible.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. 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 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
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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