Weather Alert in Maryland
Special Weather Statement issued February 27 at 4:08AM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Washington; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; Augusta; Rockingham; Shenandoah; Frederick; Page; Warren; Clarke; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Northern Fauquier; Southern Fauquier; Eastern Highland; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park; Hampshire; Berkeley; Jefferson; Hardy; Eastern Grant; Eastern Pendleton
DESCRIPTION: Patchy fog has developed across much of the region, especially in valleys and other low lying areas. While visibilities may be variable, some fog is locally dense with visibility less than one quarter mile. Temperatures in many of these locations have fallen into the upper 20s and lower 30s, which could result in freezing fog. Any residual moisture from Thursday's rain could also result in icy spots. Expect the fog to gradually erode by mid morning. If driving early this morning, be prepared for rapidly changing conditions. Slow down, increase following distance, and use low beam headlights when encountering dense fog. Any road surfaces which appear wet may actually be icy.
INSTRUCTION: N/A
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Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
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