Please excuse our dust as we are restructuring the Organization. Brand new changes are on the way. Please feel free to apply to be on our staff!

Do you want to communicate with us and join a fun community? Check out our Forums! Our Forums are located at https://www.usawx.org/forums! Thank you for your interest in USA Weather!
We are also working on a new web design and staff interface for the orgnization! You can check a preview out HERE!

USA Weather — Glossary Word Search TOP

This is the glossary of terms used by USA Weather, Inc. Please select a Letter, the hash tag, or search by term to begin your search. You may search by term and match the term exactly, or match all terms that include your term.

#   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z    

Search by Term
Type of Search:       Match Exactly         Match   all terms
Search Success
There are 11 results matching the term TOP !
Echo Tops
The height above ground of the center of the radar beam using the tilt, or scan, that contains the highest elevation where reflectivities greater than 18 dBZ can be detected.
Effective Topography
The topography as seen by an approaching flow, which may include not only the actual terrain but also cold air masses trapped within or adjacent to the actual topography.
Hectopascal
A unit of pressure equal to a millibar (1 hPa = 1 mb). Abbreviated hPa.
Magnetopause
In solar-terrestrial terms, the boundary layer between the solar wind and the magnetosphere.
Overshooting Top
(or Penetrating Top) - A dome-like protrusion above a thunderstorm anvil, representing a very strong updraft and hence a higher potential for severe weather with that storm. A persistent and/or large overshooting top (anvil dome) often is present on a supercell.

A short-lived overshooting top, or one that forms and dissipates in cycles, may indicate the presence of a pulse storm.
Penetrating Top
Same as Overshooting Top; a dome-like protrusion above a thunderstorm anvil, representing a very strong updraft and hence a higher potential for severe weather with that storm. A persistent and/or large overshooting top (anvil dome) often is present on a supercell. A short-lived overshooting top, or one that forms and dissipates in cycles, may indicate the presence of a pulse storm.
Radioisotope Snow Gage
A snow water equivalent gage based on the absorption of gamma radiation by snow; this gage can measure up to 55 inches water equivalent with a 2 to 5 percent error.
Stoplogs
In hydrologic terms, large logs, timbers or steel beams placed on top of each other with their ends held in guides on each side of a channel or conduit providing a temporary closure versus a permanent bulkhead gate.
Stratopause
The boundary between the stratosphere and mesosphere.
TOP
Cloud Top
Topography
The shape of the land.