Weather Alert in Tennessee
Severe Thunderstorm Watch issued September 5 at 5:43PM EDT until September 6 at 1:00AM EDT by NWS Morristown TN
AREAS AFFECTED: Campbell, TN; Claiborne, TN; Hancock, TN; Morgan, TN; Scott, TN; Lee, VA
DESCRIPTION: THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 606 IN EFFECT UNTIL 1 AM EDT SATURDAY FOR THE FOLLOWING AREAS IN TENNESSEE THIS WATCH INCLUDES 5 COUNTIES IN EAST TENNESSEE CAMPBELL CLAIBORNE HANCOCK MORGAN SCOTT IN VIRGINIA THIS WATCH INCLUDES 1 COUNTY IN SOUTHWEST VIRGINIA LEE THIS INCLUDES THE CITIES OF ARTHUR, BIG SOUTH FORK NATIONAL, CARYVILLE, CLAIRFIELD, ELGIN, ELK VALLEY, EVANSTON, FINCASTLE, HARROGATE-SHAWANEE, HIGH POINT, HOWARD QUARTER, HUNTSVILLE, JELLICO, KYLES FORD, LA FOLLETTE, LONE MOUNTAIN, NORMA, ONEIDA, PETROS, PINE ORCHARD, ROSE HILL, ROYAL BLUE, SANDLICK, SLICK ROCK, SMOKEY JUNCTION, SNEEDVILLE, SPRINGDALE, TREADWAY, AND WHITE OAK.
INSTRUCTION: N/A
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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