Weather Alert in Tennessee
Flood Advisory issued September 4 at 4:27PM EDT until September 4 at 7:30PM EDT by NWS Morristown TN
AREAS AFFECTED: Blount, TN; Knox, TN; Loudon, TN; Roane, TN
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of east Tennessee, including the following counties, Blount, Knox, Loudon and Roane. * WHEN...Until 730 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 425 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Between 1 and 2 inches of rain have fallen over the last hour, especially in the Kingston, Harriman, and Rockwood areas, as well as southern parts of the Knoxville metro area. An additional 1 to 2 inches of rain are possible over the next couple of hours. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Knoxville, Oak Ridge, Maryville, Lenoir City, Alcoa, Kingston, Rockwood, Farragut, Louisville, Rockford, Midtown, Eagleton Village, Harriman, Bradbury and Wildwood. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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