Sierra Nevada Thunderstorm on Radar and Infrared Satellite

Infrared Satellite Image, 0400 UTC 6 September 1998

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Anvil top of severe thunderstorm in northern Sierra has distinct signature on enhanced infrared satellite image.  Thunderstorm formed has moisture from former hurricane Isis moved northward over the state.

Radar Reflectivity, 0348 UTC 6 September 1998

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Radar image which is color-coded for increasing precipitation intensity (blue=light; orange/red/magenta=very heavy) shows correspondence to satellite image above.