Weather Alert in Maryland
Flood Warning issued May 15 at 5:17AM EDT until May 17 at 12:30AM EDT by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Montgomery, MD; Fairfax, VA
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Maryland...West Virginia...Virginia... Potomac River at Hancock affecting Morgan and Washington Counties. Potomac River at Little Falls affecting Montgomery and Fairfax Counties. ...The Flood Warning continues for the following rivers in Maryland...West Virginia...Virginia... Potomac River at Shepherdstown affecting Berkeley, Jefferson and Washington Counties. Potomac River at Harpers Ferry affecting Jefferson and Washington Counties. Potomac River at Edwards Ferry affecting Montgomery and Loudoun Counties. Potomac River at Point of Rocks affecting Frederick and Loudoun Counties. For the Potomac River...including Paw Paw, Hancock, Shepherdstown, Harpers Ferry, Point of Rocks, Edwards Ferry, Little Falls... Moderate flooding is forecast. * WHAT...Moderate flooding is forecast. * WHERE...Potomac River at Little Falls. * WHEN...Until early Saturday morning. * IMPACTS...At 12.0 feet, The C&O Canal overflows at the Great Falls Tavern. Water covers the towpath in many areas. * ADDITIONAL DETAILS... - At 4:45 AM EDT Thursday the stage was 9.9 feet, or 0.1 feet below flood stage. - Forecast...The river is expected to rise above flood stage early this morning to a crest of 12.2 feet this evening. It will then fall below flood stage Friday evening. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 02/27/1961. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/washington or www.weather.gov/baltimore. The next statement will be issued this afternoon at 130 PM EDT.
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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
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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