Weather Alert in North Dakota
Flood Warning issued August 10 at 8:45PM CDT until August 12 at 7:00AM CDT by NWS Grand Forks ND
AREAS AFFECTED: Cass, ND
DESCRIPTION: ...The Flood Warning is extended for the following rivers in North Dakota... Maple River near Mapleton (South of I-94) affecting Cass County. ...The Flood Warning continues for the following rivers in Minnesota... South Branch Buffalo River at Sabin affecting Clay County. Buffalo River near Dilworth affecting Clay County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Maple River near Mapleton (South of I-94). * WHEN...Until Tuesday morning. * IMPACTS...At 18.0 feet, MINOR FLOOD. * ADDITIONAL DETAILS... - At 8:15 PM CDT Sunday the stage was 18.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:15 PM CDT Sunday was 18.6 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling. - Flood stage is 18.0 feet.
INSTRUCTION: Safety message - Turn around, don't drown. Don't travel through flooded areas. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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
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