SPC MD 990

MD 0990 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR FAR NORTHERN KANSAS...MUCH OF SOUTHERN NEBRASKA...SOUTHWEST IOWA AND FAR NORTHWEST MISSOURI Mesoscale Discussion 0990 NWS Storm Prediction Center Norman OK 0355 PM CDT Fri Jun 05 2026 Areas affected...far northern Kansas...much of southern Nebraska...southwest Iowa and far northwest Missouri Concerning...Severe potential...Watch likely Valid 052055Z - 052300Z Probability of Watch Issuance...80 percent SUMMARY...Storms will develop from far northern Kansas across much of southern and eastern Nebraska after about 22-23Z. Damaging winds and hail will be possible. DISCUSSION...Visible satellite shows CU development within the surface trough over western KS and intersecting the stationary front extending from southern NE into IA. Initial development is most likely from northern KS into south-central NE in the next 1-2 hours, with additional activity increasing along the stationary front as a modest low-level jet increases this evening. Localized hail at or above 2.00" may occur, along with an eventual mixed-mode damaging wind threat as storms travel within the moderately unstable zone near the boundary. Visible imagery and surface observations show ample moisture in place, which is also beneath steep midlevel lapse rates. Deep-layer shear is a bit marginal for supercells, but deep-layer mean winds speeds as well as the increasing southerly winds at 850 mb should support accelerating eastward propagating clusters, and perhaps some cells splits. ..Jewell/Mosier.. 06/05/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...EAX...OAX...TOP...GID...GLD... LAT...LON 40429476 39939525 39699925 39699999 39960009 40479990 40819962 41099881 41329786 41779616 41819549 41769505 41419483 41159473 40429476 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more