124 FXUS64 KEPZ 080409 AFDEPZArea Forecast Discussion National Weather Service El Paso TX/Santa Teresa NM 1009 PM MDT Sun Sep 7 2025
...New DISCUSSION, AVIATION...
.KEY MESSAGES... Updated at 1008 PM MDT Sun Sep 7 2025
- Rapid warm up starts Monday as dry air continues to filter into the area. Warmer than normal temperatures through the work week.
- Isolated storms possible over the area mountains each afternoon through Tuesday, dry elsewhere.
- Moisture returns Wednesday and beyond for chances of isolated thunderstorms.
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.DISCUSSION... Issued at 1008 PM MDT Sun Sep 7 2025
Mid and upper level high centers now over the Baja and northern Mexico, with resultant dry westerly flow around the top of those highs over New Mexico. PWs are sitting at around .7 to .9 inches and dewpoints are still mostly in the 50s. This was able to generate a few mountain storms this afternoon. Though PWs will remain nearly constant Monday, dewpoints will drop into the 40s. Thus it will be hard to even generate any mountain storms, and grid POPs reflect this. Much the same story for Tuesday. Temperatures will warm to well above normal, though latest models are a tad cooler and isolated triple digit lowland temps not likely now.
Wednesday and Thursday...upper high center migrates back east over central Texas in response to huge upper low moving onshore of the west coast. This will turn our mid-level winds back to the south and begin importing sub-tropical moisture back over the CWA. Both GFS and ECMWF show this as a narrow band of moisture both days from about Deming west, with PWs back above an inch and dewpoint temps in the 50s. Expect chance of thunderstorms west, with just a slight chance to the east.
Friday through Sunday...moisture plume spreads east as the upper low makes in roads over the Great Basin and eventually the northern Rockies. PWs range from about .7 inches north to 1.0 inches south. Dewpoints will continue in the upper 40s to mid 50s. Expect the chance of thunderstorms most areas, perhaps very low chances for Hudspeth Co. Models also showing short waves rotating around base of the upper low which could help with convective initiation.
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.AVIATION... (00Z TAFS) Issued at 1008 PM MDT Sun Sep 7 2025
VFR conditions through the period with SCT-BKN250. Surface winds variable AOB 7 knots overnight, becoming west/southwest 7-10 knots Monday afternoon. Some CU buildups possible over the mountains Monday afternoon, but very low chances of any thunderstorms developing.
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.FIRE WEATHER... Issued at 1157 AM MDT Sun Sep 7 2025
Low fire danger the next week ahead as min RH values stay above critical thresholds and wind speeds remain light each afternoon. Min RH values will range from 17-25% across the lowlands and 30-45% in the area mountains through the work week and weekend. 20 foot wind speeds will generally be 5-10 mph each afternoon becoming light overnight. Monday and Tuesday will remain fairly dry with the best shot for a storm or shower being in the area mountains. By Wednesday, storm chances increase a bit to allow isolated storms, potentially even scattered coverage Wednesday from the NM Bootheel upwards to the Gila region that afternoon. Continued storm chances persist Thursday and through the weekend. Looks like generally low end chances each day, not expecting any widespread storms or flash flooding anytime soon.
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.PRELIMINARY POINT TEMPS/POPS... El Paso 71 96 72 97 / 0 10 0 0 Sierra Blanca 60 89 61 91 / 0 10 0 0 Las Cruces 64 92 65 92 / 0 10 0 0 Alamogordo 65 92 66 93 / 0 10 0 0 Cloudcroft 48 69 50 71 / 0 20 0 10 Truth or Consequences 65 91 65 91 / 0 10 0 0 Silver City 60 86 60 86 / 0 10 0 10 Deming 64 94 65 95 / 0 10 0 0 Lordsburg 65 91 65 91 / 0 10 0 10 West El Paso Metro 71 93 71 94 / 0 10 0 0 Dell City 63 93 64 94 / 10 10 0 0 Fort Hancock 67 94 68 96 / 0 10 0 0 Loma Linda 63 86 64 88 / 0 10 0 0 Fabens 67 94 68 95 / 0 10 0 0 Santa Teresa 67 92 67 93 / 0 10 0 0 White Sands HQ 67 93 69 94 / 0 10 0 0 Jornada Range 65 92 65 93 / 0 10 0 0 Hatch 64 94 65 95 / 0 10 0 0 Columbus 66 94 67 94 / 0 10 0 0 Orogrande 63 91 64 91 / 0 10 0 0 Mayhill 53 81 55 81 / 0 20 0 10 Mescalero 53 81 55 82 / 0 20 0 10 Timberon 51 79 52 80 / 0 10 0 10 Winston 53 84 55 84 / 0 10 0 10 Hillsboro 62 92 62 92 / 0 10 0 10 Spaceport 62 91 63 91 / 0 10 0 0 Lake Roberts 53 86 55 86 / 0 10 0 10 Hurley 60 88 60 89 / 0 10 0 10 Cliff 62 92 62 92 / 0 10 0 10 Mule Creek 59 88 60 88 / 0 10 0 10 Faywood 62 88 62 89 / 10 10 0 10 Animas 65 92 65 92 / 0 10 0 10 Hachita 63 91 64 91 / 0 10 0 0 Antelope Wells 63 90 64 91 / 10 10 0 0 Cloverdale 61 86 63 86 / 10 10 0 10
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.EPZ WATCHES/WARNINGS/ADVISORIES... TX...None. NM...None. &&
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FORECASTER...17-Hefner
NWS EPZ Office Area Forecast Discussion