SPC MD 94



MD 0094 CONCERNING FREEZING RAIN FOR CENTRAL MO…SOUTH-CENTRAL IL…SOUTHWEST AND SOUTHERN IN

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Mesoscale Discussion 0094
NWS Storm Prediction Center Norman OK
0541 AM CST Sun Feb 10 2019

Areas affected...central MO...south-central IL...southwest and
southern IN

Concerning...Freezing rain 

Valid 101141Z - 101545Z

SUMMARY...Freezing rain rates are forecast to range from 0.05-0.10
inch per 3 hours over the lower OH Valley to approaching 0.05 inch
per 3 hours over central MO.

DISCUSSION...Radar mosaic shows a precipitation shield over the
lower OH Valley moving to the east-northeast within a broad zone of
low-level warm air advection.  Surface observations over southeast
MO have yielded hourly freezing rain rates 0.05-0.10 inches per 3
hours.  Expecting the precipitation rate to continue in areas
farther northeast into south-central IL and into southwest and
southern IN.  Forecast soundings indicate surface temperatures are
forecast to warm to near freezing by mid-late morning (initially
near the OH River) with the freezing rain threat ceasing from south
to north.  

Farther west, the westward extension of the larger moisture plume
over the MS Valley has been associated with showers developing over
west-central into central MO.  It seems there will probably be a
shorter duration (1-3 hour window) of freezing rain rates with
totals approaching 0.05 inches per 3 hours over the I-70 corridor
near and west of St. Louis through much of central MO during the
next 3-4 hours.

..Smith.. 02/10/2019

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

ATTN...WFO...LMK...IND...PAH...ILX...LSX...EAX...

LAT...LON   39849345 39538791 38578605 37758749 38519033 38839342
            39179410 39849345 

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