
MD 0074 CONCERNING HEAVY SNOW FOR SOUTHERN ND VICINITY
Mesoscale Discussion 0074 NWS Storm Prediction Center Norman OK 0514 PM CST Fri Feb 07 2025 Areas affected...southern ND vicinity Concerning...Heavy snow Valid 072314Z - 080315Z SUMMARY...Narrow, transient bands of heavy snowfall rates around 1 inch per hour should persist through the mid-evening hours across the southern North Dakota vicinity, potentially impacting areas along and south of the I-94 corridor. DISCUSSION...Per recent reports from WFO BIS/FGF and observational imagery, a thin band of heavy snow has been ongoing across a portion of southern ND, which the bulk of daytime guidance was underdone with. This snow band appears to be associated with an arc of maximized low-level isentropic ascent amid a rather cold thermodynamic profile supporting high snow-to-liquid ratios. Forcing for ascent above the dendritic growth zone will overspread some of this same corridor into mid evening as a mid-level shortwave impulse over southeast MT shifts east. This should maintain favorable large-scale lift and may aid in producing additional narrow bands towards the SD border area. This scenario is supported by a relative increase in heavy snow potential from 12Z HREF and 15Z SREF winter guidance. ..Grams.. 02/07/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FGF...ABR...BIS...UNR... LAT...LON 46480233 46740075 46799757 46439645 46109649 45809715 45720016 45520178 45590262 46480233