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NWS Weather Prediction Center Surface Analysis Charts:
Past 24 Hour Radar Overlay Continental US

Note: Times are Zulu (UTC, currently 2233)
Jul 20:  2100Z | Jul 21:  0000Z | 0300Z | 0600Z | 0900Z | 1200Z | 1500Z | 1800Z
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Hour 21

These maps are updated about 2 hours after their indicated analysis time.

(The next updates will be the 2100Z maps at about 2300Z.)

Maps and Data Courtesy of NOAA NWS Weather Prediction Center North American Surface Analysis.
Script by SE Lincoln Weather.