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Linear Radar Echoes
squall lines on radar images
Radar indicates the linear nature of a squall line.
The strongest radar
reflectivity (VIP) levels on the
leading edge reveal the locations of updrafts
and adjacent regions of heavy precipitation.
[Image: radar view of multicell line (77K)]
From the eastern plains of Colorado we see a distant, approaching squall
line, about 20 miles to the west. Further east from the High Plains, we would
be less likely to have this unrestricted view because of haze and intervening
[Image: Distant Approaching Squall Line-Eastern Plains of Colorado (52K)]
Nevertheless, similar storm structure, with new updrafts developing on
the leading edge of the gust front,
will be present regardless of location.