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Mesoscale Discussion 65
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   Mesoscale Discussion 0065
   NWS Storm Prediction Center Norman OK
   0214 AM CST Fri Jan 14 2022

   Areas affected...Central and Eastern North Dakota...Northeastern
   South Dakota...Southwestern Minnesota...Northern Iowa

   Concerning...Heavy snow 

   Valid 140814Z - 141215Z

   SUMMARY...Snowfall rates are expected to exceed one inch per hour in
   some locations within a corridor from north-central North Dakota
   southeastward to northern Iowa during the overnight, continuing to
   after daybreak.

   DISCUSSION...The latest radars from Minot and Grand Forks, North
   Dakota show an area of moderate snowfall located from far southwest
   Manitoba southeastward to just north of Fargo, North Dakota. This
   area of snow is located to the east of a well-defined inverted
   surface trough over the western Dakotas, and ahead of a shortwave
   trough evident on water vapor-imagery located in the northern High
   Plains. As the shortwave trough moves east-southeastward across the
   Dakotas tonight, isentropic lift is forecast to increase first
   across central and southeastern North Dakota, then southeastward
   across southwest Minnesota, northeastern South Dakota and into
   northern Iowa toward daybreak. The strong isentropic lift combined
   with forcing associated with the shortwave trough should result in a
   gradual intensification of the more organized bands of snow.
   Snowfall rates are expected to exceed one inch per hour within the
   more intense northwest-to-southeast oriented bands.

   ..Broyles/Edwards.. 01/14/2022

   ...Please see for graphic product...


   LAT...LON   42939395 43659351 45129467 47179688 48219836 48459910
               48379981 48090032 47550037 46749984 45559854 44259702
               43419613 42889534 42749480 42939395 

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