Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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821 ACUS01 KWNS 151933 SWODY1 SPC AC 151931 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0131 PM CST Mon Dec 15 2025 Valid 152000Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today or tonight. ...20z Update... No changes are needed to the current D1 Convective Outlook. See previous discussion below for more information. ..Thornton.. 12/15/2025 .PREV DISCUSSION... /ISSUED 1003 AM CST Mon Dec 15 2025/ ...Synopsis... Thunderstorm potential will remain low today as strong surface high pressure and cut-off Gulf moisture results in a dry/stable airmass across much of the CONUS. A weak shortwave impulse will move over portions of the Pacific Northwest today/tonight. A few lightning flashes will be possible offshore, but minimal instability and generally shallow convection will preclude stronger updrafts through sufficiently cold temperatures aloft to produce thunderstorms inland. $$