SPC 0100Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0742 PM CDT Tue Oct 27 2020

Valid 280100Z - 281200Z


Severe thunderstorms are not expected across the contiguous United
States through tonight.

...01z Update...

Another spoke of large-scale forcing for ascent is spreading east
into the TX south Plains this evening. Lightning has increased in
coverage with weak convection along the leading edge of this forcing
near the NM/TX border. 00z sounding from MAF exhibits roughly 200
J/kg MUCAPE if lifting a parcel between 700-750mb. This band of
convection should spread northeast into western OK tonight where the
boundary-layer temperatures remain below freezing. Significant icing
appears to be the primary threat with this activity.

Scattered thunderstorms that developed across the central/eastern
Gulf Coast region are slowly weakening as they advance inland. Some
threat remains across this region tonight due to gradually
increasing moisture/weak buoyancy ahead of TC Zeta.

..Darrow.. 10/28/2020

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