Administrators NorthGeorgiaWX Posted December 25, 2023 Administrators Share Posted December 25, 2023 MD 2345 CONCERNING WINTER MIXED PRECIPITATION FOR EASTERN NEBRASKA...FAR WESTERN IOWA...EASTERN SOUTH DAKOTA...FAR WESTERN MINNESOTA...FAR SOUTHEAST NORTH DAKOTA Mesoscale Discussion 2345 NWS Storm Prediction Center Norman OK 0700 AM CST Mon Dec 25 2023 Areas affected...Eastern Nebraska...Far Western Iowa...Eastern South Dakota...Far Western Minnesota...Far Southeast North Dakota Concerning...Winter mixed precipitation Valid 251300Z - 251900Z SUMMARY...A mix of freezing rain and sleet will be likely this morning along a narrow corridor from far western Iowa northward into far western Minnesota. Moderate snow, with the possibility of localized heavy snow, will be likely from eastern Nebraska northward across much of east-central South Dakota. DISCUSSION...A mid-level low will steadily deepen across the central High Plains this morning, as a surface low moves northward across central Iowa. A distinct band of large-scale ascent is forecast to move around the northern periphery of the system, making conditions favorable for widespread winter precipitation. Surface temperatures will be in the upper 20s and lower 30s F from near Omaha, Nebraska northward to near Fargo, North Dakota. RAP forecast soundings along this corridor this morning have a warm layer near 850 mb, suggesting that precipitation will be mostly in the form of freezing rain, and possibly sleet. Freezing rain rates of one tenth of an inch per hour will be possible in some areas. Further west from northeast Nebraska northward across much of east-central South Dakota, forecast soundings show sub-freezing temperatures throughout the low levels. This will support moderate snow. As isentropic lift dramatically strengthens this morning, locally heavy snow will be possible in some areas. Snowfall rates could reach near one inch per hour within the heaviest of bands. ..Broyles.. 12/25/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MPX...DMX...FGF...FSD...OAX...ABR...GID...BIS... LBF... LAT...LON 42069893 41459833 40979733 40909660 41059597 41249549 41619522 42669541 43779580 44409603 45409619 46209610 46769644 46869705 46469784 45749879 44899946 44299968 43179945 42069893 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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