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isallobar
(redirected from isallobaric)

   Also found in: Encyclopedia 0.04 sec.
i·sal·lo·bar  (-sl-bär)
n.
A line on a weather map connecting places having equal changes in atmospheric pressure within a given period of time.

[is(o)- + allo- + Greek baros, weight; see gwer-1 in Indo-European roots.]

isallobar [ice-sal-oh-bar]
Noun
a line on a map connecting places with equal pressure changes [Greek isos equal + allos other + baros weight]

isallobar  (-sl-bär)
A line on a weather map connecting places having equal changes in atmospheric pressure within a given period of time. Isallobars measure pressure tendency, a value that describes both the difference in barometric pressure at the beginning and end of a given time period as well as the patternfalling, rising, or steadyof pressure change.


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12Z SNDGS INDICATE RELATIVELY SHALLOW MOISTURE BUT WE FEEL MOISTURE WILL INCREASE ONCE ISALLOBARIC FLOW DEVELOPS IN RESPONSE TO RAPID CYCLOGENESIS ALONG THE SFC BAROCLINIC ZONE IN EASTERN NEW MEXICO.
An analysis of observed and gridded forecast data shows low-level cold air advection (CAA) and a strong isallobaric wind component were the primary catalysts.
 
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