Overhang - Radar term indicating a region of high reflectivity at middle and upper levels above an area of weak reflectivity at low levels.
cornice"An overhanging structure of ice or snow formed at a topographic edge (such as a mountain ridge) by wind-driven deposition. Cornices can be extremely hazardous to mountain climbers. Cornice release can also initiate avalanches.
WERWeak Echo Region - Radar term for a region of relatively weak reflectivity at low levels on the inflow side of a thunderstorm echo, topped by stronger reflectivity in the form of an echo overhang directly above it.
An experiment was done in which a weatherstick was placed beneath an overhang to protect it from direct precipitation, while allowing it to be affected by all other atmospheric conditions.
This supercell featured a rock-hard, overshooting Cb top and anvil overhang, looking southeast from about 40 miles away. Note that the supercell Cb is more vertically oriented than the weaker updraft of the neighboring towering cumulus cloud.
Place a wooden ruler or flat stick on a bench top with about a quarter of its length overhanging. Give the overhanging part of the ruler a quick "karate chop" from above.
Very high waves (20-30 ft) with overhanging crests, sea white with densely blown foam, heavy rolling, lowered visibility Seldom experienced on land, trees broken or uprooted, "considerable structural damage" 11 ...
Very high waves with long overhanging crests; the resulting foam, in great patches, is blown in dense white streaks along the direction of the wind; on the whole, the surface of the sea takes on a white appearance; ...
Beaufort Force 10 - Winds 48-55 kt, Storm, Very high waves (20 -30 ft) with overhanging crests, sea white densely blown foam, heavy rolling, lowered visibility.
Radar term for a region of relatively weak (reflectivity at low levels on the inflow side of a thunderstorm echo, topped by stronger reflectivity in the form of an echo overhang directly above it.
LEMON METHOD - A method used to analyze the vertical radar structure of thunderstorms, taking into account important radar features such as weak echo regions and overhangs.
It is used to view a contoured image of higher reflectivity values; examine storm structure features such as overhang, tilt, Weak Echo Regions (WER), and Bounded Weak Echo Regions (BWER); estimate height of higher dBZ's and echo tops; ...
but it is not limited to alignments along the radar radials. Instead the 2 end points are operator selected anywhere within 124 nm of the radar that are less than 124 nm apart. It is used to: 1) Examine storm structure features such as overhang, tilt, ...
''If it was 100 degrees out, the humidity was 100,'' she remarked. They sought a transfer further north and chose Buffalo, where they lived for 10 years. ''Talk about snow,'' says Giannetta. ''It used to be up to the overhang.'' ...
See also: Storm, Cloud, Weather, Precipitation, Updraft
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