Mesoscale Discussion 1582 NWS Storm Prediction Center Norman OK 0726 PM CDT Fri Jul 10 2026 Areas affected...Parts of central/eastern MO into southern IL and far western KY Concerning...Severe Thunderstorm Watch 479...480... Valid 110026Z - 110200Z The severe weather threat for Severe Thunderstorm Watch 479, 480 continues. SUMMARY...Small storm clusters capable of producing wind damage may continue through the evening. DISCUSSION...At 0015 UTC, a small but long-lived storm cluster is moving along I-70 between Columbia and St. Louis. Some wind damage was reported in the Columbia area, and strong inbound velocities are currently observed from the KLSX radar. This cluster may continue propagating along a surface theta-e gradient, with rich moisture (dewpoints in the 70s F and PW above 2 inches), moderate buoyancy, and sufficient low-level flow and deep-layer shear supporting a continued damaging wind threat as this cluster approaches the Mississippi River. To the east, another storm cluster across southwest IL may also continue to propagate along the theta-e/buoyancy gradient, posing a threat of wind damage into a larger portion of southern IL through the evening. Farther south, a measured severe gust was recently observed near West Plains in south-central MO, near another developing storm cluster. Deep-layer shear is weaker in this area, but strong downstream buoyancy may allow for modest upscale growth and a continued wind damage threat this evening into southeast MO (as depicted by some recent HRRR runs). ..Dean.. 07/11/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PAH...MEG...LSX...SGF... LAT...LON 36589224 38869203 39239186 39009000 38398832 37538806 36818845 36568898 36509012 36549165 36589224 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
Source link