Weather Alert in Montana
Flood Advisory issued June 16 at 6:25PM MDT until June 16 at 9:30PM MDT by NWS Billings MT
AREAS AFFECTED: Big Horn, MT; Yellowstone, MT
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of south central Montana, including the following counties, north central Big Horn and southeastern Yellowstone. * WHEN...Until 930 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 622 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 2.5 inches of rain have fallen. - This includes the following streams and drainages north of Interstate 90... Arrow Creek, Sand Creek, Spring Creek, Lost Boy Creek, Hay Creek, Fly Creek, Lone Tree Coulee, Tenmile Creek and Deer Creek. Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mainly rural areas of North Central Big Horn and Southeastern Yellowstone Counties. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Do not drive on or attempt to cross flooded roads, find an alternate route. Roads and driveways may be damaged or washed out in places. Please report observed flooding to local emergency officials and request they pass the information to the National Weather Service in Billings.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
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
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