Weather Alert in Montana
Special Weather Statement issued August 2 at 6:29PM MDT by NWS Missoula MT
AREAS AFFECTED: Kootenai/Cabinet Region; West Glacier Region
DESCRIPTION: At 628 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 21 miles east of Eureka to 8 miles northeast of Moyie Springs. Movement was southeast at 15 mph. HAZARD...Winds in excess of 30 mph, heavy rain and frequent lightning. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Heavy rain main limit visibility and cause ponding on roadways. Locations impacted include... Trego, Yaak, Stryker, Radnor, and Fortine. This includes the following highways... Highway 2 between mile markers 0 and 3. Highway 93 N between mile markers 148 and 173.
INSTRUCTION: Torrential rainfall is also occurring with these storms and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with these storms. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.
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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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