Weather Alert in North Carolina

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Flash Flood Warning issued July 1 at 8:07PM EDT until July 2 at 2:15AM EDT by NWS Blacksburg VA

AREAS AFFECTED: Ashe, NC; Grayson, VA; Smyth, VA

DESCRIPTION: FFWRNK The National Weather Service in Blacksburg has issued a * Flash Flood Warning for... Northwestern Ashe County in northwestern North Carolina... Southwestern Grayson County in southwestern Virginia... South Central Smyth County in southwestern Virginia... * Until 215 AM EDT Wednesday. * At 807 PM EDT, local law enforcement reported flash flooding in the western part of Ashe County, where a road was washed out. Between 2 and 3.5 inches of rain have fallen. Flash flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. SOURCE...Law enforcement reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Whitetop... Nella... Flatwood... Mount Rogers Summit... Grayson Highlands State Park... This includes the following streams and drainages... North Fork New River, Little Laurel Creek, Laurel Creek, Mill Creek, Jerd Branch, Big Horse Creek, Big Laurel Creek, Cut Laurel Creek, Little Helton Creek, Helton Creek, Little Horse Creek and Middle Fork Horse Creek.

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. When it is safe to do so, please send your reports of flooding, including mudslides or flooded roads, to the National Weather Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be shared on the National Weather Service Blacksburg Facebook page and on X.

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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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

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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