ZCZC SPCSWOD48 ALL
   ACUS48 KWNS 280923
   SPC AC 280923

   Day 4-8 Convective Outlook RESENT 1
   NWS Storm Prediction Center Norman OK
   0423 AM CDT Tue Apr 28 2026

   Valid 011200Z - 061200Z

   ...DISCUSSION...
   Medium-range guidance indicates that the evolving split flow may
   maintain a broadly confluent mid-level regime across and east of the
   Rockies through this period.  While a broad area of lower mid-level
   heights remains centered across the Ontario/Quebec and Upper Midwest
   through Northeast, it appears that a more prominent blocking
   ridge/high may evolve upstream near the British Columbia/Pacific
   Northwest coast by late this coming weekend into early next week.  A
   developing low to its southeast may slowly progress inland across
   California into the Southwest, with downstream mid-level ridging
   building across the Rockies.  

   There is considerable model spread concerning embedded short wave
   developments, but it appears that potential for stronger convection
   will remain generally low for the time of year and confined to parts
   of the southern tier of the U.S., perhaps including parts of the San
   Joaquin Valley, as well as along a lingering frontal zone near or
   just south of the Gulf into southern Atlantic coastal plain.  Due to
   a combination of low predictability and low severe weather
   potential, severe weather probabilities are being maintained at less
   than 15 percent through this period.

   ..Kerr.. 04/28/2026

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