Mesoscale Discussion 2072
Issued: · Valid: –
Summary
Isolated severe wind gusts of up to 70-80 mph are expected this afternoon through the evening across north-central and northeast Nevada, northwest Utah, far southeast Oregon, and southern Idaho.
Product Text
000 ACUS11 KWNS 212035 SWOMCD SPC MCD 212035 IDZ000-UTZ000-NVZ000-ORZ000-212300- Mesoscale Discussion 2072 NWS Storm Prediction Center Norman OK 0335 PM CDT Fri Aug 21 2026 Areas affected...north-central and northeast Nevada...northwest Utah...far southeast Oregon...and southern Idaho. Concerning...Severe potential...Watch unlikely Valid 212035Z - 212300Z Probability of Watch Issuance...5 percent SUMMARY...The threat for a few severe wind gusts up to 70-80 mph is expected to increase by mid to late afternoon. A watch is not expected due to the isolated nature of the threat. DISCUSSION...Subtle mid-level disturbances embedded in a moist, southerly flow regime are contributing to a gradual increase in thunderstorms this afternoon across portions of central and southern NV. Modification of the 18Z LKN sounding for hotter surface conditions currently observed over northeast NV into northwest UT yields MUCAPE of 500-750 J/kg atop a 3-4 km deep, well-mixed boundary layer. As such, thunderstorms are expected to move/develop north through the region this afternoon into evening with an associated risk for locally severe wind gusts up to 70-80 mph, driven by strong evaporational cooling potential in the sub-cloud layer. Explicit wind gust fields from the latest CAM data continue to highlight portions of north-central and northeast NV into southwest ID as a most likely corridor for the strongest gusts to occur. ..Mead/Smith.. 08/21/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...SLC...PIH...BOI...LKN... LAT...LON 43221740 41011740 40001622 39931493 40041384 40401316 41211270 42481266 43081310 43351414 43621572 43221740 MOST PROBABLE PEAK WIND GUST...65-80 MPH