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This article was first published on September 17, 2026 by SPC forecast products and curated for Storm News readers.

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This story was reported by SPC forecast products.

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SPC Sep 17, 2026 1300 UTC Day 1 Convective Outlook

Summary by Storm News Editorial Desk · As published by SPC forecast products · September 17, 2026 · 1 min read

Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0730 AM CDT Thu Sep 17 2026 Valid 171300Z - 181200Z...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF UTAH/IDAHO INTO SOUTHWEST MONTANA...AND THE CENTRAL HIGH PLAINS......SUMMARY... Thunderstorms with isolated sever...

Sources and story details

Summary created by	Storm News Editorial Desk — automated, rule-governed
Published by	SPC forecast products
Original story	Read at the source
Source published	Sep 17, 2026
Indexed here	Sep 17, 2026
AI assistance	Automated summary drawn from the source’s own published text
Prepublication human review	No — editorial rules, flagged-item review, and published samples

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