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Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Learn about and explore a variety of historical and record-breaking weather and environmental events that have impacted the people, canyons, deserts, and mountains of northern Arizona. Each event summary includes a detailed description, meteorological figures (such as radar and satellite data), and pictures captured by the public or NWS employees. Click on each year to discover more about significant weather events in northern Arizona.

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