Severe Storm Outlook Narrative (AC)
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Issued by NWS
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303 ACUS11 KWNS 272304 SWOMCD SPC MCD 272303 NDZ000-280030- Mesoscale Discussion 1452 NWS Storm Prediction Center Norman OK 0603 PM CDT Thu Jun 27 2024 Areas affected...portions of southwestern North Dakota Concerning...Tornado Watch 476... Valid 272303Z - 280030Z The severe weather threat for Tornado Watch 476 continues. SUMMARY...The severe threat continues across Tornado Watch 476. A few tornadoes remain possible with discrete supercells, but the severe wind threat should increase as an MCS overtakes the supercells in the next few hours. DISCUSSION...Two discrete supercells continue across southwestern ND as a well-developed MCS (with a history of severe gusts) approaches from southeastern MT. 22Z mesoanalysis shows modestly curved/elongated hodographs preceding the supercells, along with 200-300 m2/s2 effective SRH, supporting tornado potential. With time, the fast approaching MCS from the west will merge with the supercells. This may augment the severe wind threat, with 75-90 mph gusts possible. QLCS tornadoes will still be a concern as well. ..Squitieri.. 06/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BIS... LAT...LON 46530361 46820384 47190384 47490370 47420305 46890267 46530303 46530361