SPC Feb 20, 2018 0830 UTC Day 3 Severe Thunderstorm Outlook

By Newsroom America Feeds at 20 Feb 2018

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0130 AM CST Tue Feb 20 2018 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Showers and a few thunderstorms are expected from Texas through a portion of the Tennessee and Ohio Valley Thursday. ...Texas into the lower Mississippi, Tennessee and Ohio Valleys... Upper pattern will remain characterized by a synoptic trough over the western half of the U.S. on Thursday. A low-amplitude shortwave trough initially over the southern Rockies will eject northeast through the Central Plains and middle MS Valley regions. Quasi-stationary front will reside from the Middle Atlantic through the TN and lower MS Valleys to south TX Thursday morning. This boundary may retreat some distance northwest during the period, but in general an ana-frontal southwesterly flow regime will persist with episodes of showers and a few thunderstorms occurring primarily within zone of isentropic ascent on the cool side of the front. The elevated nature of the convection and weak instability should preclude a threat for severe storms. ..Dial.. 02/20/2018 Read more



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