MD 0057 CONCERNING FREEZING RAIN FOR NORTHERN OKLAHOMA…SOUTHERN KANSAS…SOUTHWESTERN MISSOURI
Mesoscale Discussion 0057
NWS Storm Prediction Center Norman OK
1117 PM CST Thu Jan 16 2020
Areas affected...Northern Oklahoma...Southern Kansas...Southwestern
Missouri
Concerning...Freezing rain
Valid 170517Z - 170915Z
SUMMARY...Freezing rain will increase across southern Kansas and
southwestern Missouri over the next 2-4 hours. Rates may approach
0.05"/hr.
DISCUSSION...Large canopy of precipitation is gradually expanding
north across the southern/central Plains within a corridor of
isentropic ascent. At the surface, a wedge of sub-freezing
boundary-layer air is gradually shallowing across northern
OK/southern KS as strong low-level warm advection persists ahead of
a short-wave trough. With significant warming expected in the 1-3km
layer, the onset of any mixed precipitation should change to
freezing rain as the morning progresses. Profiles along/north of
I-70 are currently quite dry in the lowest 1km, thus several hours
of moistening will be necessary before heavier, mixed precipitation
develops across this region.
..Darrow.. 01/17/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SGF...EAX...TOP...ICT...OUN...DDC...AMA...
LAT...LON 38389882 38419546 37889408 37359375 36989403 37209502
36989690 36349904 37000029 37930006 38389882
from SPC Mesoscale Discussions http://bit.ly/2uXe72k
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