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contributor authorMaddox, Robert A.
contributor authorCanova, Faye
contributor authorHoxit, L. Ray
date accessioned2017-06-09T16:03:06Z
date available2017-06-09T16:03:06Z
date copyright1980/11/01
date issued1980
identifier issn0027-0644
identifier otherams-59756.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4200349
description abstractMeteorological characteristics of flash floods and heavy precipitation events over the western United States are often considerably different than those associated with flash floods in the east. Data were compiled and studied for 61 western United States flash flood events and attendant meteorological conditions were documented. The events were classified by similar 500 mb flow regimes and four characteristic patterns were associated with the flash flood events. Synoptic storms occurred in conjunction with both an intense cyclonic surface system and a strong 500 mb trough. The remaining flash floods (49 events) were associated with weak and slow moving 500 mb short-wave troughs. It is shown that the National Meteorological Center's broadscale analyses (surface and standard level charts) are not sufficient for monitoring the subtle features that often interact to produce flash floods. The field forecaster must enhance, or reanalyze, these facsimile charts if he is to identify regions of developing flash flood potential. Distinct geographical. seasonal and diurnal characteristics were noted for the four basic types of western flash floods and mean values of important meteorological parameters were computed.
publisherAmerican Meteorological Society
titleMeteorological Characteristics of Flash Flood Events over the Western United States
typeJournal Paper
journal volume108
journal issue11
journal titleMonthly Weather Review
identifier doi10.1175/1520-0493(1980)108<1866:MCOFFE>2.0.CO;2
journal fristpage1866
journal lastpage1877
treeMonthly Weather Review:;1980:;volume( 108 ):;issue: 011
contenttypeFulltext


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