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Mesoscale Discussion 94
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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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Page last modified: February 10, 2019
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