SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0134 AM CST Tue Dec 08 2020 Valid 101200Z - 111200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Thursday. ...Synopsis... The upper low over the lower CO Valley/northwest Mexico early Thursday will progress eastward, becoming an open wave, to the western portions of the central/southern Plains by 12z Friday. Strong southwesterly deep layer flow will overspread the southern Rockies and adjacent Plains, with strong height falls resulting in surface low development over OK/TX during the afternoon and evening. As this occurs, southerly low level return flow across the western Gulf will transport modest moisture northward across southern and eastern TX into the Ark-La-Tex vicinity late in the period. Showers are expected across parts of AZ/NM during the day and despite strong ascent associated with the progressive upper trough, meager instability should preclude thunderstorm activity. During the overnight hours toward early Friday morning, the warm advection occurring over eastern TX may also result in showers, however, thunderstorm chances before the end of the forecast period appear low. ..Leitman.. 12/08/2020
There’s more click here.