Weather Alert in Nebraska
Dense Fog Advisory issued September 2 at 1:20AM CDT until September 2 at 10:00AM CDT by NWS Hastings NE
AREAS AFFECTED: Valley; Greeley; Nance; Sherman; Howard; Merrick; Polk; Dawson; York
DESCRIPTION: * WHAT...Visibility one-quarter mile or less in dense fog. * WHERE...Greeley, Howard, Merrick, Nance, Sherman, Valley, Polk, York, and Dawson Counties. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous, including for the Tuesday morning commute. * ADDITIONAL DETAILS...Although at least light fog is likely this morning across much of the Advisory area, the development of truly dense fog, reducing visibility to 1/4 mile or less, will likely be more hit-and-miss in nature...impacting some areas more than others. This will result in widely varying visibilities, including over short distances. Although not all areas will see truly dense fog, enough potential exists for dense fog within enough of the area to justify this Advisory.
INSTRUCTION: If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
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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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