- Hydrology is the study of water on the surface and under the surface of the earth and in the . In east Tennessee, southwest Virginia, and southwest North Carolina, there is often more water on the surface of the earth than can be conveniently run off into the oceans. In the 18th through early 20th centuries, this region was dangerously flood prone, and development of large cities came slowly, compared to other areas of the country. The development of hydrologic science in the early 20th century enabled dams to be built along the Tennessee River and its tributaries that were capable of partially controlling the flooding, and provided electricity to underdeveloped areas. Growth since then has been tremendous in many locations. Unfortunately, much of the growth has been in relatively low, flat locations (pretty hard to find around these parts!) that often tend to be more flood prone than other places.
- The 博体育 (博体育) in Morristown, Tennessee has hydrologic responsibility for much of east Tennessee, five counties of southwest Virginia, and Cherokee and Clay counties of extreme southwest North Carolina. This area is called our . Our hydrologic operation mainly involves the forecasting of river levels and warning of .
- Even in the flood prone Southern Appalachians, river floods are a relatively rare event. We, in cooperation with the , issue river forecasts for several rivers in the region. These forecasts include forecasted stages (heights above a given zero level) at daily intervals, and expected flood levels and times of crest (the maximum stage). The LMRFC issues forecasts for thirteen points in our HSA. They are:
Clinch River at Cleveland, VA [Pictures]
Clinch River at Speers Ferry, VA [Pictures]
Clinch River above Tazewell, TN
Emory River at Oakdale, TN [Pictures]
French Broad River near Newport, TN [Pictures]
Little Pigeon River at Sevierville, TN
Nolichucky River at Embreeville, TN [Pictures]
North Fork of the Holston River near Gate City, VA [Pictures]
Pigeon River at Newport, TN
Powell River near Jonesville, VA
Powell River near Arthur, TN [Pictures]
Sequatchie River near Whitwell, TN [Pictures]
South Chickamauga Creek near Chickamauga, TN [Pictures]
- Real-Time Streamflow Data for , , and
- Most of the rivers and streams in east Tennessee, southwest Virginia, and southwest North Carolina are flash flood prone, that is, they respond very quickly and violently to heavy rain. Below are some recent flash floods in the area:
Little Webb Creek, Sevier County, Tennessee: September 22, 1989
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Buffalo Creek, Grainger County, Tennessee: July 1, 1997
Doe River, Carter County, Tennessee: January 7-8, 1998
Southwest Virginia and Northeast Tennessee: July 25-29, 2001
Horse Creek, Greene County, Tennessee: August 3-4, 2001
East Tennessee and Southwest Virginia: February 14-23, 2003
Southeast Tennessee: May 5-11, 2003
Central East Tennessee: September 23, 2006
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