766
ACUS11 KWNS 291049
SWOMCD
SPC MCD 291049
IAZ000-MOZ000-NEZ000-291615-

Mesoscale Discussion 2238
NWS Storm Prediction Center Norman OK
0449 AM CST Sat Nov 29 2025

Areas affected...East-central/southeast NE into southwest/central IA

Concerning...Heavy snow

Valid 291049Z - 291615Z

SUMMARY...Snow rates may approach or exceed 1 inch per hour at times
this morning.

DISCUSSION...A long-duration snow event is underway across parts of
NE and IA this morning. A somewhat more organized precipitation band
has recently developed from eastern NE into west-central IA, within
a zone of enhanced frontogenesis within the 900-800 mb layer. This
band may continue to progress eastward in conjunction with a
mid/upper-level shortwave trough (and related surface low) currently
moving eastward across the central Plains.

Light to moderate snow has been ongoing this morning across much of
IA, while observations and recent dual-pol data from KOAX indicate
that a changeover from freezing rain/drizzle to snow is underway
from Omaha to near Lincoln, NE. Snow rates within the ongoing band
(and any additional organized bands that develop) may approach or
exceed 1 inch per hour at times this morning. Farther south into far
southeast NE and northwest MO, a residual warm layer may result in a
mix of precipitation types, though brief periods of moderate to
heavy snow rates could occur where a full changeover to snow can be
maintained.

..Dean.. 11/29/2025

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...DMX...EAX...OAX...

LAT...LON   41299700 41769569 42119475 42469373 42529282 41699269
            40769261 40639416 40479570 40539684 41299700