Subj : MESO: Mesoscale Discussion 1170 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Tue Jun 20 2023 02:13:37 ACUS11 KWNS 200213 SWOMCD SPC MCD 200212=20 NDZ000-MTZ000-200315- Mesoscale Discussion 1170 NWS Storm Prediction Center Norman OK 0912 PM CDT Mon Jun 19 2023 Areas affected...Far Eastern South Dakota and Western North Dakota Concerning...Severe Thunderstorm Watch 342... Valid 200212Z - 200315Z The severe weather threat for Severe Thunderstorm Watch 342 continues. SUMMARY...Severe threat is likely to develop across western North Dakota over the next hour. Wind damage and large hail will be likely, and weather watch issuance will be needed soon. DISCUSSION...Latest radar imagery from Glasgow, Montana shows an intense supercell in far eastern Montana, which produced an 83 mph wind gust within the last half hour. This storm is associated with a shortwave trough and vorticity max over eastern Montana, which will continue to move northeastward into western North Dakota this evening. Moderate instability, strong deep-layer shear and steep mid-level lapse rates will support continued supercell development with a potential for large hail. Wind damage will also be likely. ...Broyles/Thompson.. 06/20/2023 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-mDGoEMXVdXM4X_pqPmHjXD1mb8sK6y-nbCp_8Rt8Hnqe4qanTOqNr3nIcKfYzXqsa_ki1Eay= 5xxOVc7MZaWE6DFtwI$ for graphic product... ATTN...WFO...BIS...BYZ...GGW... LAT...LON 46580287 46260398 46430449 46960445 47750296 48090219 48130169 47820136 47200153 46580287=20 =3D =3D =3D To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .