936 FXUS64 KMAF 062324 AFDMAFArea Forecast Discussion National Weather Service Midland/Odessa TX 624 PM CDT Sat Sep 6 2025
...New AVIATION...
.KEY MESSAGES... Updated at 624 PM CDT Sat Sep 6 2025
- Below normal temperatures are expected with a continued chance of showers and thunderstorms through the weekend. The greatest rain chances (30-60 percent) are anticipated tonight into Sunday, particularly over the Trans Pecos, Big Bend, and Davis Mountains region.
- Low (15%-30%) chance of showers/storms over Marfa Plateau into eastern and southeastern parts of Permian Basin and Terrell County Monday tapering off by late evening, with highs warming from Sunday as cloud cover decreases from west to east.
- Probability of showers/storms less than 15% from Tuesday into end of the week, with seasonable high and low temperatures and southeast/south winds.
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.SHORT TERM... (This afternoon through Sunday night) Issued at 211 PM CDT Sat Sep 6 2025
A westerly to northwesterly flow aloft continues across our region this afternoon to the north of an upper-level ridge that is oriented across Mexico and also to the southwest of a broad upper- level trough extending along and east of the Mississippi Valley region. The cold front that pushed into our area yesterday evening/last night has basically stalled across the southeast New Mexico plains and into the southern Permian Basin/Trans Pecos region as of early this afternoon. Low level clouds have held strong across much of southeast New Mexico and the Permian Basin through the morning and temperatures are still holding in the 60s north of an Artesia, Hobbs, Big Spring line as of 1 PM CDT (noon MDT), while readings are gradually warming into the 70s and 80s across the remainder of the forecast area. Weak shortwave impulses embedded within the W-NW flow have aided in the development of isolated to scattered light rain showers along and behind the boundary this morning and early this afternoon, with a few thunderstorms forming along the Lower Trans Pecos within a region of increasing instability south of the front.
There are no significant changes to our forecast thinking through Sunday night. The upper-level flow pattern will transition more northwesterly tonight through Sunday night as the upper-level ridge over Mexico shifts further to the west toward the Baja region and also amplifies over the Rocky Mountains. A plume of deep layer moisture will remain in place over much of our area tonight into Sunday with precipitable water values up to 1.25-1.6 inches. The surface boundary will remain oriented over the southeast New Mexico Plains/Trans Pecos tonight but gradually becomes diffuse into Sunday. Shortwave impulses embedded within the northwesterly flow should aid in ascent for the development of scattered to numerous showers and thunderstorms this evening into tonight, with guidance especially focusing development along portions of the Trans Pecos, Big Bend, and Davis Mountains region in the vicinity of and ahead of the front. We will maintain relatively good chances (30-60%) of showers and thunderstorms this evening/tonight along this portion of our area, with lower probabilities (10-30%) across the remainder of southeast New Mexico and into the Permian Basin. A few storms may be capable of producing locally heavy rainfall tonight along and south of the front. Additional isolated to scattered showers and thunderstorms will continue to develop into Sunday within the northwesterly flow aloft pattern, with the best chances (30-50%) once again favored over the Davis Mountains/Marfa Plateau/Lower Trans Pecos region. Convective chances should diminish going into Sunday evening/night. Overnight lows should continue to range in the upper 50s to mid 60s over much of the region, except for upper 60s to lower 70s along the Rio Grande tonight and Sunday night. Highs on Sunday will mostly range in the 80s, except in the 90s along the Rio Grande.
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.LONG TERM... (Monday through Friday) Issued at 211 PM CDT Sat Sep 6 2025
The onset of drier weather and more seasonable temperatures will follow rain chances tapering off late evening Monday as the upper level trough and remnants of TC Lorena move off to the east. Highs Monday rise into upper 80s F to lower 90s F, lower to mid 90s F along Pecos River, lower to mid 80s F higher elevations, and mid to upper 90s F along Rio Grande as cloud cover decreases from west to east. Low (15%-30%) probability of showers/storms develop over Marfa Plateau into east and southeast Permian Basin into Terrell County Monday afternoon and evening before tapering off. High probability of rainfall from earlier this week up to 0.25" over Marfa Plateau into Lower Trans Pecos, but with low probability of rainfall 0.50" to 0.75" or higher, and spreads remaining a few tenths of an inch at most. Therefore, while flooding in heaviest showers/storms cannot be ruled out, earlier this week is not looking like a washout. Lows Monday night fall into mid to upper 60s F, mid to upper 50s F higher elevations, and lower 70s F along Rio Grande amidst light southeast winds and dew point temperatures remaining in the 60s F, 50s F western higher terrain.
Most storm systems and associated lift and moisture will bypass the area to the north and west, with large scale sinking motion provided by mid to upper ridging over the central part of the country, so the rest of this week is expected to remain dry. Winds veer more southerly by Tuesday with trajectories less directed off the Gulf, resulting in dew point temperatures falling back into the 50s F, upper 40s to lower 50s F western higher terrain. Highs settle into the lower to mid 90s F, 80s F higher elevations, and mid to upper 90s F southern Rio Grande basins, 100F or higher at Big Bend each day Tuesday into the end of the week. Lows likewise stay in the mid to upper 60s F, mid to upper 50s F higher elevations and northern Lea County, and lower to mid 70s F along the Rio Grande into southeast Permian Basin.
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.AVIATION... (00Z TAFS) Issued at 624 PM CDT Sat Sep 6 2025
VFR conditions prevail at all terminals. OVC to BKN sky cover, with easterly to southeasterly winds generally under 10kts are expected throughout this TAF period. Have included -TSRA PROB30 for KFST to account for the probability of a couple of showers/storms that may impact that site. Otherwise, confidence everywhere else is too low to include any mention of -TSRA or -RA. Amendments may be made as needed.
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.PRELIMINARY POINT TEMPS/POPS... Big Spring 63 85 65 89 / 10 20 10 10 Carlsbad 64 87 66 92 / 20 20 10 10 Dryden 70 86 69 90 / 60 50 20 10 Fort Stockton 65 86 65 90 / 40 30 10 10 Guadalupe Pass 60 79 63 84 / 20 20 10 10 Hobbs 61 83 63 88 / 20 20 10 10 Marfa 59 81 57 84 / 30 40 10 20 Midland Intl Airport 65 86 66 90 / 20 20 10 10 Odessa 65 84 66 89 / 20 20 10 10 Wink 65 86 66 91 / 30 20 10 10
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.MAF WATCHES/WARNINGS/ADVISORIES... TX...None. NM...None. &&
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SHORT TERM...21 LONG TERM....94 AVIATION...55
NWS MAF Office Area Forecast Discussion