SPC MD 74



MD 0074 CONCERNING FREEZING RAIN FOR CENTRAL MO

MD 0074 Image


Mesoscale Discussion 0074
NWS Storm Prediction Center Norman OK
0432 AM CST Wed Feb 06 2019

Areas affected...central MO

Concerning...Freezing rain 

Valid 061032Z - 061230Z

SUMMARY...Weak convection with a few embedded thunderstorms may
yield pockets of freezing rain rates 0.05 inch per hour over the
next 2 hours near the I-70 corridor in central MO.

DISCUSSION...Radar imagery over the past hour (0930-1030z) has shown
an area of convective development displaced 150 mi to the north of
the surface front located along the AR/MO border.  A weak QLCS is
moving eastward through the lower OH Valley and in its wake, weak
convective development has ensued within warm advection atop a
shallow/cold airmass located over the lower MO Valley.  Temperatures
are currently ranging from the upper 20s F over west-central MO to
freezing in between Columbia and St. Louis.  Cold advection at the
surface is relatively weak and suggestive of temperatures likely
remaining above freezing at the western portion of the St. Louis
exurbia.  Therefore, freezing rain will likely focus over central MO
where the surface temperatures and weak convection will promote
pockets of freezing rain with rates around 0.05 inch per hour.

..Smith.. 02/06/2019

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

ATTN...WFO...LSX...SGF...EAX...

LAT...LON   38449156 38129310 38269367 38719369 39279176 38939141
            38449156 

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