Mesoscale Discussion 1140
Issued: · Valid: –
Summary
Scattered thunderstorms may produce damaging wind gusts of 55 to 70 mph across portions of the mid-Tennessee River Valley this afternoon.
Product Text
000 ACUS11 KWNS 141844 SWOMCD SPC MCD 141843 TNZ000-GAZ000-ALZ000-MSZ000-142015- Mesoscale Discussion 1140 NWS Storm Prediction Center Norman OK 0143 PM CDT Sun Jun 14 2026 Areas affected...portions of the mid-Tennessee River Valley Concerning...Severe potential...Watch possible Valid 141843Z - 142015Z Probability of Watch Issuance...40 percent SUMMARY...Scattered thunderstorms will pose a risk for damaging wind gusts this afternoon across portions of the mid-Tennessee River Valley DISCUSSION...An uptick in convective coverage has been noted across portions of the mid-Tennessee River Valley over the past 30-60 minutes with a broken broken band of developing thunderstorms noted per regional radar imagery. This activity is occurring along a remnant outflow boundary from overnight convection immediately downstream of a subtle mid-level MCV. Modestly enhanced mid-level westerly flow (30+ kts sampled above 1.5-2 km AGL by the HTX VWP and 40+ kts sampled by OHX) is contributing to 20-30 kts of effective shear. Coupled with a moderately unstable environment in place ahead of these storms, some potential exists for a marginally more organized multicell cluster/band to evolve eastward this afternoon, with an attendant risk for damaging wind gusts. Watch issuance remains uncertain at this time, but a targeted Severe Thunderstorm Watch may be considered should a corridor of greater severe potential become evident. ..Chalmers/Mosier.. 06/14/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MRX...FFC...OHX...BMX...HUN...MEG... LAT...LON 34168659 34228728 34288776 34378807 34538834 34688840 35008828 35218813 35648770 36028720 36168693 36258657 36188580 36118535 35988519 35758506 35398500 35128505 34738526 34448552 34228600 34168659 MOST PROBABLE PEAK WIND GUST...55-70 MPH