Severe Weather Outlook

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Outlook for Sunday, December 8

Outlook Summary

Severe thunderstorms are not expected Sunday.

Outlook Images

overview

any severe low

Detailed Outlook

SPC AC 060757

Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0157 AM CST Fri Dec 06 2019

Valid 081200Z - 091200Z

NO THUNDERSTORM AREAS FORECAST

### SUMMARY

Severe thunderstorms are not expected Sunday.

Synopsis

A fairly progressive upper pattern is anticipated on Sunday. A northern-stream shortwave trough is expected to move through the northern Rockies and into the into the northern/central Plains while a southern-stream shortwave trough moves through the southern High Plains and northern portions of the southern Plains. At the same time, a more compact shortwave trough is expected to move across CA. Overall evolution of these systems will likely contribute to a development of an expansive upper trough across North America. By early Monday morning, this upper trough will likely extend from the Hudson Bay southwestward through southern CA.

At the surface, lee cyclogenesis is expected to result in a low near the CO/KS/OK border intersection Sunday evening. This low will likely move eastward along the OK/KS border overnight, reaching the OK/KS/MO border intersection by early Monday morning. Some moisture return is possible across southeast/east TX and LA but warm temperatures aloft will preclude deep convection.

Cold temperatures aloft and persistent forcing for ascent may result in a few lightning strikes across the Great Basin Sunday afternoon and evening. However, coverage will be isolated and is currently expected to remain below 10%.

..Mosier.. 12/06/2019

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NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z

National Risk Overview

Friday, December 6
TORNADO: low
HAIL: low
WIND: low
Saturday, December 7
ANY SEVERE: low
Sunday, December 8
ANY SEVERE: low
Monday, December 9
ANY SEVERE: low / uncertain
Tuesday, December 10
ANY SEVERE: low / uncertain
Wednesday, December 11
ANY SEVERE: low / uncertain
Thursday, December 12
ANY SEVERE: low / uncertain
Friday, December 13
ANY SEVERE: low / uncertain

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