Weather Alert in Oregon
Wind Advisory issued February 5 at 12:24AM PST until February 5 at 1:00PM PST by NWS Portland OR
AREAS AFFECTED: East Portland Metro; East Clark County Lowlands
DESCRIPTION: * WHAT...East winds 25 to 35 mph with gusts up to 40 to 45 mph expected. * WHERE...Eastern Portland/Vancouver Metro Near The Gorge. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur from Washougal and Troutdale eastward after 3 AM PST Thursday.
INSTRUCTION: Secure outdoor objects. Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as garbage cans and other objects that can easily blow around.
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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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