Mesoscale Discussions, also known as MDs, are a type of forecast product issued by the Storm Prediction Center. As of a recent update, no Mesoscale Discussions are currently in effect. This information is available from the SPC, which provides forecast products to help predict severe weather events.
The most recent update was issued on Tuesday, September 1, 2026, at 12:22:01 UTC. At that time, there were no active Mesoscale Discussions.
Further details about the current forecast and any potential severe weather events can be found through the SPC's forecast products.
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1142 AM CDT Sun Sep 13 2026 Valid 131700Z - 141200Z ...Central Wyoming... A robust upper-level low continues to make eastward progress into the Pacific Northwest while an accompanying 65-70 knot mid-level jet maxima...