SPC AC 020059

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0759 PM CDT Tue Sep 01 2020

   Valid 020100Z - 021200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EASTERN TEXAS
   PANHANDLE AND FAR WESTERN OKLAHOMA INTO THE TEXAS BIG COUNTRY...

   ...SUMMARY...
   Severe thunderstorms capable of large hail, damaging winds, and a
   tornado or two will continue tonight from the eastern Texas
   Panhandle and far western Oklahoma into the Texas Big Country. Other
   severe storms may produce isolated damaging winds across parts of
   the Mid-South through tonight.

   ...01Z Update...

   ...Southern Plains...
   Thunderstorms are expected to persist throughout the night along and
   behind the outflow pushing southward/southeastward into central and
   east TX. Very moist air mass will continue to support moderate to
   strong instability along and ahead of the outflow. Mid-level flow
   (and as a result vertical shear) weakens from northwest to
   southeast,  placing a relatively greater potential for a few severe
   storms across portions of central TX. Damaging wind gusts are the
   primary severe threat. There is also a low probably chance for
   isolated hail and a tornado. 

   Strong to severe thunderstorms are also expected to persist for the
   next several hours across the TX Panhandle before nocturnal cooling
   and progression into a less thermodynamically favorable air mass
   result in weakening. Large hail and damaging wind gusts are the
   primary severe threats.

   ...Mid-South...
   Both thunderstorm intensity and coverage have waned over the past
   hour, likely a result of nocturnal stabilization. Expectation is for
   isolated thunderstorms to gradually move northeastward, supported by
   the northeastward progression of a weak vorticity maximum. Modestly
   enhanced winds attendant to this vorticity max could contribute to
   the development of a stronger storm or two. Damaging wind gusts are
   possible from any stronger, more persistent updrafts. Low
   probability potential for a tornado also exists.

   ..Mosier.. 09/02/2020

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