Glossary

/Glossary/

Severe Thunderstorm Warning

A severe thunderstorm warning is issued when either severe weather is reported by storm spotters or is indicated by radar. The criteria for a storm to become severe includes: Winds of 68mph or greater. Hail of 1" in diameter or greater. A severe thunderstorm warning is issued by your local National Weather Service forecast office. [...]

By | January 16th, 2016||0 Comments

Shelf Cloud

A low, horizontal wedge-shaped arcus cloud, associated with a thunderstorm gust front (or occasionally with a cold front, even in the absence of thunderstorms).

By | January 30th, 2017|Uncategorized|0 Comments

Single Cell Thunderstorm

A thunderstorm characterized by a single updraft core and a single downdraft that descends into the same area as the updraft  cutting off the thunderstorm inflow which in turn causes the updraft and the thunderstorm to dissipate. Although they may briefly be severe,  single cell thunderstorms are short-lived, usually lasting about 1/2 hour to an [...]

By | January 28th, 2016|, , , |0 Comments

Skew-T

A Skew-T Log-P diagram is one of four thermodynamic diagrams commonly used in weather analysis and forecasting. It allows straight, horizontal isobars, and provides for a large angle between isotherms and dry adiabats making it easier to read.  A Skew-T offers an almost instantaneous snapshot of the atmosphere from the surface to about the 100 millibar [...]

By | January 30th, 2017|Uncategorized|0 Comments

Storm

Any disturbed state of the atmosphere, especially affecting the Earth's surface, and strongly implying destructive and otherwise unpleasant weather. Storms range in scale from tornadoes and thunderstorms to tropical cyclones to synoptic-scale extratropical cyclones.

By | January 27th, 2016|, , |0 Comments

Storm Prediction Center

The Storm Prediction Center (SPC) is a government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC).  Headquartered at the National [...]

By | June 23rd, 2015||0 Comments

Storm Shelter

A storm shelter  is a type of bunker designed to protect the occupants from violent severe weather, particularly tornadoes.  A storm shelter may be underground or an above ground reinforced safe room.

By | January 28th, 2016||0 Comments