Weather Alert in Pennsylvania
Winter Storm Warning issued February 22 at 2:56AM EST until February 23 at 6:00PM EST by NWS Mount Holly NJ
AREAS AFFECTED: Western Chester; Eastern Chester; Western Montgomery
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...Heavy snow expected. Total snow accumulations between 16 and 22 inches. Winds gusting as high as 40 mph. * WHERE...Eastern Chester, Western Chester, and Western Montgomery Counties. * WHEN...From 7 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 possible. Blowing and drifting of snow, and whiteout conditions possible.
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.
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Current conditions powered by WeatherAPI.com
