Weather Alert in Maryland
Flood Watch issued May 13 at 4:09PM EDT by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Central and Southeast Montgomery; Fairfax
DESCRIPTION: ...The National Weather Service in Baltimore MD/Washington DC has issued a Flood Watch for the following rivers in West Virginia... Virginia...Maryland... South Branch Potomac River near Springfield affecting Hardy and Hampshire Counties. Potomac River at Point of Rocks affecting Western Loudoun and Frederick MD zones. Potomac River at Little Falls affecting Central and Southeast Montgomery and Fairfax Counties. ...The Flood Watch is cancelled for the following rivers in Virginia... Rappahannock River at Remington affecting Southern Fauquier and Culpeper zones. For the Potomac River...including Paw Paw, Hancock, Shepherdstown, Harpers Ferry, Point of Rocks, Edwards Ferry, Little Falls... flooding is possible. * WHAT...Flooding is possible. * WHERE...Potomac River at Little Falls. * WHEN...From Thursday afternoon until further notice. * IMPACTS...At 11.5 feet, Water covers the towpath in multiple spots between the Washington Aqueduct Dam and Pennyfield Lock, mileposts 15 to 19 on the C&O Canal. * ADDITIONAL DETAILS... - At 3:45 PM EDT Tuesday the stage was 4.2 feet, or 5.8 feet below flood stage. - Forecast...Flood stage may be reached early Thursday afternoon. - Flood stage is 10.0 feet. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information
INSTRUCTION: If you are in the watch area, remain alert to possible flooding. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Additional information is available at www.weather.gov/washington or www.weather.gov/baltimore. The next statement will be issued late this evening.this afternoon at 515 PM EDT.
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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