968 FXUS64 KLUB 251102 AFDLUBArea Forecast Discussion National Weather Service Lubbock TX 602 AM CDT Thu Sep 25 2025
...New AVIATION...
.KEY MESSAGES... Updated at 538 AM CDT Thu Sep 25 2025
- Cooler temperatures persist this afternoon with warmer but around seasonal normal highs expected Friday.
- Highs back above seasonal normals through the weekend.
- Dry, apart from slight chances for showers and thunderstorms near the New Mexico state line Saturday through Monday.
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.SHORT TERM... (Today and tonight) Issued at 1221 AM CDT Thu Sep 25 2025
Quiet but cooler conditions are expected through the short term period. The upper level shortwave thought brought the cooler air and precipitation to parts of the FA will continue to depart to the east as an upper level ridge begins to amplify over the Desert Southwest. We will begin to see this ridge shift east in response to an upper level shortwave trough and associated closed low moving onshore the southern California coastline. In addition, the surface high will also begin to advance east which will shift northerly winds throughout the day out of the east-southeast by the late afternoon. Despite the rising heights and thickness values, the upslope component to the wind should help keep the cooler air mass in place this afternoon. Expect daytime highs to be a few degrees warmer but still cooler compared to what we saw earlier this week and near seasonal normals in the 80s area-wide. Tonight, not much of a change to report with light wind speeds and clear skies allowing for max radiational cooler and lows in the 50s.
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.LONG TERM... (Friday through Wednesday) Issued at 1221 AM CDT Thu Sep 25 2025
By the start of the extended period not much of a change to the upper level pattern is expected from the short term. The FA will remain under the influence of the upper level ridge as the upper level trough and associated closed low scoots through portions of SOCAL and AZ through Saturday, before ejecting northeastward towards the Rockies on Sunday. As the shortwave track northeastward we expect to see this feature weaken as a strong shortwave moves into the PacNW region. In response, we should see zonal flow aloft become more southwesterly by Saturday morning which should allow for some subtropical moisture to transport into the region through the weekend. Compared to previous model runs, there looks to be better agreement in regards to the evolution of the trough but still not enough agreement for anything to be certain. Ensembles are still hinting that this closed low could bring precipitation to at least our most western column of counties this weekend as the system approaches the region from the west. However, most of the lift and beneficial moisture looks to remain off to our west across portions of AZ/NM. As for temperatures, west to southwest flow will become prominent from the surface to mid-levels by Friday. Combined with subsidence aloft we can expect temperatures to quickly warm back above seasonal normals in the upper 80s to mid 90s through the weekend. We could see slight relief Sunday into Monday as surface winds back out of the southeast in response to the shifting surface high pressure and potential for lingering clouds through the afternoon. Due to the vast amount of uncertainty regarding the extended, will go ahead and maintain NBM PoPs and temperatures, depicting chances for rain across our western zones beginning Saturday through Monday and slightly cooler temperatures come Monday.
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.AVIATION... (12Z TAFS) Issued at 538 AM CDT Thu Sep 25 2025
VFR conditions will prevail.
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.LUB WATCHES/WARNINGS/ADVISORIES... None. &&
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SHORT TERM...12 LONG TERM....12 AVIATION...51
NWS LUB Office Area Forecast Discussion