SPC AC 300426

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1126 PM CDT Sat Jul 29 2017

   Valid 311200Z - 011200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM CENTRAL
   NORTH DAKOTA INTO NORTHWEST MINNESOTA...

   ...SUMMARY...
   A few strong to severe storms capable of hail and wind are possible
   Monday afternoon and evening across North Dakota into northwest
   Minnesota.

   ...Synopsis...
   High pressure will remain situated from the middle and upper MS
   Valley eastward to the Mid Atlantic, with generally weak flow aloft.
   An upper trough will sink southward across south central Canada,
   with belt of 30 kt midlevel flow extending into ND and northern MN.
   A cold front will also affect the far northern Plains Monday
   afternoon and evening, providing a focus for thunderstorms.

   Elsewhere, easterly surface winds will maintain moisture into the
   southern High Plains, where clusters of thunderstorms are likely
   producing mainly rain.

   ...ND into northwest MN...
   Strong heating ahead of a cold front beneath cool temperatures aloft
   will lead to a deep layer of steep lapse rates by late afternoon.
   Wind profiles will be weak, and dewpoints may barely reach 60 F.
   However, scattered storms are expected to form along the front,
   multicellular in mode, and capable of marginally severe hail and
   localized damaging wind gusts. This threat should be diurnal in
   nature, with threat decreasing after sunset.

   ..Jewell.. 07/30/2017

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