Convective Outlook for Oct 17, 2026
Issued as Day 1 Convective Outlook at · Valid:
Summary
No severe thunderstorms are expected across the continental United States through Sunday morning. Isolated thunderstorms may occur in south Florida and parts of southern Arizona this evening.
Product Text
000 ACUS01 KWNS 180056 SWODY1 SPC AC 180054 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0754 PM CDT Sat Oct 17 2026 Valid 180100Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected across the U.S. through tonight. ...DISCUSSION... At upper-levels, a trough and associated low will move eastward into the western Atlantic tonight as a ridge dominates over the central U.S. At the surface, dry and cool air associated with a large area of high pressure will be in place over much of the nation. Moisture and instability will be confined to south Florida, where isolated thunderstorms will be possible this evening. Isolated storms may also form over parts of southern Arizona this evening. No severe threat is expected over the continental U.S. through daybreak on Sunday. ..Broyles.. 10/18/2026 $$