Weather Alert in Montana

Recent Locations: Bridgewater, NJ   Cleveland, UT   Clinton, MT  

Hydrologic Outlook issued July 31 at 7:25PM MDT by NWS Glasgow MT

AREAS AFFECTED: Daniels, MT; Dawson, MT; Garfield, MT; McCone, MT; Petroleum, MT; Phillips, MT; Prairie, MT; Richland, MT; Roosevelt, MT; Sheridan, MT; Valley, MT; Wibaux, MT

DESCRIPTION: ESFGGW There will be chances for showers and thunderstorms each day from tonight through Sunday. Any storms that occur will be slow moving and capable of producing very heavy rain. There will be potential for flash flooding in any areas that receive heavy rain. Small streams and creeks have the potential for quick water rises in any areas where heavy rain occurs. Stay tuned to the forecast for any watches, warnings or advisories. Please report any flooding that occurs to local law enforcement and have them relay the report to the National Weather Service.

INSTRUCTION: N/A

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

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

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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