ACUS11 KWNS 291934
SWOMCD
SPC MCD 291933=20
SDZ000-NEZ000-292230-

Mesoscale Discussion 0282
NWS Storm Prediction Center Norman OK
0233 PM CDT Sat Mar 29 2025

Areas affected...Parts of northern NE into southern SD

Concerning...Heavy snow=20

Valid 291933Z - 292230Z

SUMMARY...Occasional snow rates of locally greater than 1 inch per
hour are possible this afternoon.

DISCUSSION...A band of moderate to locally heavy precipitation is
ongoing early this afternoon from western NE into western/central
SD, with observations indicating a mix of snow, sleet, and
rain/freezing rain ongoing across the region. This precipitation
band is associated with a negatively tilted midlevel shortwave
trough ejecting northeastward across central Great Plains.
Frontogenesis near/above 700 mb will continue to support strong
midlevel ascent that will extend through the dendritic growth zone,
resulting the potential for at least localized heavy snow rates this afternoon.=20

Marginal low-level temperatures will tend to delay the changeover to
snow and limit snow-to-liquid ratios in some areas, but snow may
increase near/above 1 inch per hour in areas that experience the
heaviest precip rates. In addition, weak MUCAPE will support
potential for occasional lightning and convective enhancement of
rates along the eastern periphery of heavier precipitation, as the
primary midlevel vorticity maximum moves northeastward. Some areas
outside of the heaviest snow band may continue to experience
occasional freezing rain and/or sleet through the afternoon.

..Dean.. 03/29/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4QTmSjfXnUHAnKOO4kIyViKKXQ6kgA_qhqpahGbm_8MWWPsNfRlpA92UJE10JTMxPRCsXjJTy= k4B3Jn3cZ95silRTxI$ for graphic product...

ATTN...WFO...FSD...ABR...LBF...UNR...

LAT...LON 42820171 43680095 44230015 44339917 43969889 43509892
42819954 42000045 41950095 41990113 42000161 42130179
42820171=20


=3D =3D =3D
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