173 FXUS64 KLUB 291123 AFDLUB Area Forecast Discussion National Weather Service Lubbock TX 623 AM CDT Sat Jun 29 2019 .AVIATION... VFR will persist over the next 24 hours. && .PREV DISCUSSION... /issued 408 AM CDT Sat Jun 29 2019/ DISCUSSION... Across North America this morning, we have an UL trough across the Pacific northwest, a dome of high pressure centered just to our north, a low on the SE side of Hudson Bay, and a tropical wave from the central Gulf Coast southward toward the Bay of Campeche. The PAC NW low will be shunted into Canada as our neighboring high is compressed more tightly into a NE/SW axis from Sonora to Iowa and the topical wave enters SERN TX by Sunday morning. By late Monday, the wave should create a weakness in the elongated high with this weakness apparently hanging around the area through the remainder of the extended. The weather should remain dry today and scattered storms should remain well NW and modestly SE of the area on Sunday though I suppose there's an off chance of perhaps a pop-up storm in the SERN half of the area as H7 temps cool to about 10C. Still, the likelihood appears too low to mention in the official forecast ATTM. Monday's outlook continues to look dry though the approaching wave may complicate things somewhat. The GFS is a lone ranger in generating scattered activity across the region though this is likely being driven by a moist theta-E bias that we often see in that guidance. That said, the values depicted by the ECM are not that much lower. Normally, when these tropical waves push eastward, we end up under the influence of subsidence which does not lend itself well to storm development. However, by late Tuesday, things could start to change as H7 temps cool to near 8C and the wave is on our eastern border and we also may see activity move in from ERN NM. From then on, it would seem that mainly overnight rain chances will occur with mostly dry daytime periods. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && $$ 55