Weather Alert in Oregon
Flood Warning issued March 12 at 1:38AM PDT until March 12 at 2:04PM PDT by NWS Portland OR
AREAS AFFECTED: Tillamook, OR
DESCRIPTION: ...The National Weather Service in Portland OR has issued a Flood Warning for the following rivers in Oregon... Wilson River near Tillamook affecting Tillamook County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wilson River near Tillamook. * WHEN...From early this morning to this afternoon. * IMPACTS...Above 14.0 feet, widespread lowland and dairy land flooding begins along the Wilson River downstream of the river gage at Highway 6 mile post 6. Flooding also begins along sloughs, mainly Dougherty, north of Tillamook from Wilson River Loop Road west to Hwy 101 and along Makinster Road west of Hwy 101. Minor flooding begins in the north Tillamook business district along Hwy 101, particularly during high tide. * ADDITIONAL DETAILS... - At 12:30 AM PDT Thursday the stage was 12.2 feet. - Bankfull stage is 10.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:30 AM PDT Thursday was 12.2 feet. - Forecast...The river will rise to 13.9 feet early this morning. It will then fall below flood stage this morning to 8.2 feet late tomorrow morning. It will rise to 10.9 feet late tomorrow evening. It will then fall again and remain below flood stage. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 145 PM PDT.
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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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