Weather Alert in North Carolina
Flood Warning issued August 11 at 10:49PM EDT until August 13 at 1:21PM EDT by NWS Raleigh NC
AREAS AFFECTED: Johnston, NC
DESCRIPTION: ...The National Weather Service in Raleigh NC has issued a Flood Warning for the following rivers in North Carolina... Neuse River Near Clayton affecting Johnston County. * WHAT...Minor flooding is forecast. * WHERE...Neuse River near Clayton. * WHEN...From late tonight to early Wednesday afternoon. * IMPACTS...At 9.0 feet, Minor flooding begins. Minor overflow occurs on both banks. Water reaches the edge of the Neuse River Greenway trail. At 10.0 feet, Upstream of the gage site, the Neuse River Greenway at Covered Bridge Road begins to flood. * ADDITIONAL DETAILS... - At 10:15 PM EDT Monday the stage was 7.5 feet. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 10.1 feet early tomorrow afternoon. It will then fall below flood stage early Wednesday morning. - Flood stage is 9.0 feet. - water.noaa.gov/gauges/CLYN7
INSTRUCTION: Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov/rah/rivers. The next statement will be issued Tuesday afternoon.
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Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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