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Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Overview

After a couple days of spotty heavy rain from thunderstorms, the area was hit harder on Saturday, June 9th from a large, dangerous storm that moved into northern Iowa, followed by lines and waves of strong to severe thunderstorms.

Some of the initial storms produced large hail and damaging wind. These had a tornado threat with them. Then storms transitioned more into strong wind producers and dropped very heavy rain over parts of the region.

The hardest hit areas were from far southern Minnesota, across northeast Iowa, into southwest Wisconsin. Rainfall totals exceeded 6 inches in some communities and many rivers rose to flood levels.

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3-day Rainfall Totals (June 8-10)
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