114 FXUS64 KLUB 011104 AFDLUB Area Forecast Discussion National Weather Service Lubbock TX 504 AM CST Tue Mar 1 2022 .AVIATION... VFR conditions will continue through the TAF period. && .PREV DISCUSSION... /issued 229 AM CST Tue Mar 1 2022/ SHORT TERM... An upper level ridge covering the western CONUS will continue to move east today with a weak closed low underneath it traveling across southern Arizona today. Strong subtropical jet winds aloft today will decrease as this ridge moves east and the closed low further weakens. The thick Pacific moisture plume that has been overhead for the past 24 hours will thin out from north to south today. However, mostly cloudy skies can still be expected for most of the day. This may keep temperatures from again reaching their full potential today. Nonetheless, temperatures are still expected to be 10-15 degrees above seasonal averages. LONG TERM... Broad upper level ridging will continue to spread eastward on Wednesday with the ridge axis progged to be roughly overhead by Thursday morning. The streak of warm afternoon temperatures is set to persist through the end of the week as modest south-southwesterly low level flow continues along with a gradual climb in layer thickness values. Upper level flow will become southwesterly by Thursday evening as longwave upper troughing expands over the western CONUS. A series of shortwaves will rotate around the base of this trough Friday through the weekend, with high level cloudiness set to increase late Thursday into Friday as Pacific moisture streams overhead within the upper southwesterlies. Strengthening surface southerlies will pull quite a bit of moisture into our area Thursday night with dewpoints progged in the upper 40s to low 50s by Friday morning. Friday will still be warm even with the increased cloudiness with precip chances looking very slim Fri-Sat despite the gradual approach of an upper shortwave as the atmosphere will remain firmly capped. This shortwave will pass just to our north on Saturday, with guidance depicting a sharp dryline quickly pushing east and out of our area during the morning taking all appreciable moisture with it. With much drier conditions and notably stronger westerly winds as a surface cyclone deepens over the central plains, the potential for widespread critical fire weather conditions appears to be increasing for Saturday afternoon and possibly into Sunday as dry westerly winds persist. A relatively modest cold front will push through the region from the north late Sunday into early Monday, bringing a return to cooler temperatures for early next week. The signal for precip in the Sun-Mon timeframe continues to fade with the best moisture well to our east. Will maintain a slight chance mention for rain showers across the eastern zones for now given a lingering signal in the ensembles, but lack of deep moisture will keep any precip very light. /DWK && .LUB WATCHES/WARNINGS/ADVISORIES... None. && $$ 01