Weather Alert in Maryland
Winter Weather Advisory issued March 2 at 2:26AM EST until March 3 at 1:00PM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Washington; Frederick; Extreme Western Allegany; Central and Eastern Allegany; Eastern Garrett; Morgan; Berkeley; Jefferson; Western Mineral; Eastern Mineral
DESCRIPTION: * WHAT...Mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations up to two tenths of an inch. * WHERE...Portions of north central and western Maryland and eastern West Virginia. * WHEN...From 10 PM this evening to 1 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. * ADDITIONAL DETAILS...Some locations may see up to an inch of snow between late morning and mid afternoon today, but roadway impacts should be limited. The primary threat to travel will be overnight from a wintry mix, which could briefly be snow or sleet but primarily fall as freezing rain. Precipitation will change to plain rain by midday Tuesday.
INSTRUCTION: Slow down and use caution while traveling. 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 is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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
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