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Mesoscale Discussion 0029
NWS Storm Prediction Center Norman OK
0242 AM CST Fri Jan 10 2025

Areas affected...Central/northern AR into northern MS and western TN

Concerning...Heavy snow 

Valid 100842Z - 101345Z

SUMMARY...Occasional snow rates of near/above 1 inch per hour remain
possible through the early morning.

DISCUSSION...Moderate to occasionally heavy snow is ongoing early
this morning across parts of far eastern OK into central/northern
AR, in association with a mid/upper-level shortwave trough moving
from the southern Plains towards the lower MS Valley. Low-level
warm/moist advection and favorable upper jet dynamics will continue
to support an extensive precipitation plume through the overnight.
Surface observations and recent dual-pol data from KLZK and KNQA
suggest the transition between snow and mixed precipitation types
has remained relatively stationary to the south of Little Rock and
Memphis (with some oscillation) over the last 1-2 hours, and a
subfreezing column was maintained on the 05Z LZK sounding, though
with near 0C observed between 850-750 mb. 

Precipitation rates will remain supportive of moderate to locally
heavy snow through the early morning across parts of
central/northern AR, with an increase in snow rates expected with
time into western TN and far northern MS. Some mixing will remain
possible along the southern portion of the MCD area, especially
where somewhat stronger low-level warm advection persists across
northern MS.

..Dean.. 01/10/2025

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

ATTN...WFO...MEG...LZK...TSA...

LAT...LON   34709429 35499418 36219360 36429297 36379136 36089041
            35748914 35648874 35508829 35228808 34798831 34608945
            34499080 34539291 34499369 34529411 34709429