Weatherstem

On The Radar
with Jess

Timely weather insights, operational updates, and expert commentary from Weatherstem's meteorology team to help you stay ahead of the storm.

Jessica Arnoldy
Jessica Arnoldy
Director, Meteorology Services

19.5 years at The Weather Channel. MS Meteorology, Penn State. BS Earth & Atmospheric Sciences, Georgia Tech. Writing operational weather briefings for emergency managers, athletic directors, and operations teams.

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Severe weather briefings from Jess, delivered when conditions warrant.

ECMWF ensemble 500mb height anomaly map showing ridge building over eastern US ahead of Memorial Day Weekend 2026
severe weather
May 13: Severe Weather Ramps Up Heading into Memorial Day Weekend

Tornado and severe storm threats ramp up across the Plains through Memorial Day weekend, while record heat builds in ...

May 14, 2026
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On the Radar with Jess
Jan 13: Arctic Cold and Southern Snow Possibilities
Jan 13, 2026
On The Radar
Jan 8: Southern Severe, Record Warmth and Colder Weather Ahead
Jan 8, 2026
On The Radar
Jan 6: First Significant Storm of 2026
Jan 6, 2026
On the Radar with Jess
Dec 26: California Rain, Northeast Snow and Year End Arctic Blast
Dec 26, 2025
On the Radar with Jess
Dec 22: Dangerous California Flood Threat, Record Warmth, and Northeast Snow Chances
Dec 22, 2025
On the Radar with Jess
Dec 19: Outlook for the Holiday Week
Dec 19, 2025
On the Radar with Jess
Dec 17: Damaging Winds Ahead of Mild Late-week System That Brings Rain, not Snow
Dec 17, 2025
On the Radar with Jess
Dec 15: December Warmup and more Pacific Northwest Rain
Dec 15, 2025
On the Radar with Jess
Dec 12: Weekend Snow & Cold to a December Thaw
Dec 12, 2025