Weather Alert in California
Dense Smoke Advisory issued September 7 at 3:12PM PDT until September 8 at 11:00AM PDT by NWS Reno NV
AREAS AFFECTED: Mono
DESCRIPTION: * WHAT...Dense smoke reducing visibility to 1 mile or less at times. Smoke will also lead to degraded air quality. * WHERE...Mono County. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Hazardous travel due to reduced visibility, especially along US-395 and over southern Mono County. Poor air quality may cause health issues for those with respiratory illnesses. * ADDITIONAL DETAILS...For details on health impacts and recommended precautions, please consult the Great Basin Unified Air Pollution Control District at GBUAPCD.org and AirNow.gov.
INSTRUCTION: Persons with respiratory illnesses should remain indoors to avoid inhaling smoke.
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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
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
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