MD 0013 CONCERNING FREEZING RAIN FOR PORTIONS OF CENTRAL/EASTERN KS INTO FAR SOUTHEASTERN NE…NORTHWESTERN MO…AND SOUTHERN IA
Mesoscale Discussion 0013
NWS Storm Prediction Center Norman OK
1254 PM CST Fri Jan 10 2020
Areas affected...Portions of central/eastern KS into far
southeastern NE...northwestern MO...and southern IA
Concerning...Freezing rain
Valid 101854Z - 110100Z
SUMMARY...A mix of freezing rain, sleet, and snow will likely occur
through the remainder of this afternoon and into the early evening.
Freezing rain rates in excess of 0.05 inch per three hours should
occur.
DISCUSSION...18Z surface analysis shows a shallow arctic cold front
advancing south-southeastward across the central Plains. A rapid
transition from isolated hail potential to freezing rain concerns
exists in a narrow corridor along and behind the front across parts
of central/eastern KS into southern IA this afternoon. An area of
ongoing precipitation associated with low-level warm advection
occurring above the surface cold front should continue shifting
northeastward over the next several hours. A pronounced warm nose in
roughly the 900-750 mb layer noted on the 12Z sounding from TOP will
be slow to erode, and complete melting aloft of frozen hydrometeors
should occur initially. Refreezing at the surface will occur behind
the cold front as temperatures rapidly fall into the mid to upper
20s. A few surface observations already show this process occurring,
with light to moderate freezing rain noted from central KS into
northeastern KS, far southeastern NE, and southern IA. Potential
exists for freezing rain rates to exceed 0.05 inch per 3 hours in a
narrow southwest to northeast corridor across this region through
the early evening, with some convective enhancement possible. A
gradual transition to sleet and eventually snow appears likely as
the warm nose aloft slowly erodes.
..Gleason.. 01/10/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DVN...DMX...EAX...OAX...TOP...ICT...DDC...
LAT...LON 37829891 38409851 39879647 40739515 41439369 41749276
41629213 41349199 40879229 40249328 39509447 38419621
37889766 37629837 37829891
from SPC Mesoscale Discussions http://bit.ly/3a0tCGA
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