Weather Alert in Oklahoma
Flood Advisory issued August 27 at 2:04PM CDT until August 31 at 1:00AM CDT by NWS Tulsa OK
AREAS AFFECTED: Ottawa, OK
DESCRIPTION: ...The National Weather Service in Tulsa has issued a Flood Advisory for the following rivers in Oklahoma... Neosho River near Commerce affecting Ottawa County. * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Neosho River near Commerce. * WHEN...From this afternoon to early Sunday morning. * IMPACTS...At 14.0 feet, low lying areas along the river in Riverview Park are threatened by high water and faster flows are expected. Use extra caution or avoid recreational activities near the river. Interests near the river should continue to monitor later forecasts. * ADDITIONAL DETAILS... - At 1:30 PM CDT Wednesday the stage was 2.8 feet. - Forecast...The river is expected to rise to a crest of 14.0 feet Saturday morning. - Action stage is 14.0 feet. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
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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.
Next Topic: Rain
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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