196 FXUS64 KEPZ 160359 AFDEPZArea Forecast Discussion National Weather Service El Paso TX/Santa Teresa NM 959 PM MDT Mon Sep 15 2025
...New DISCUSSION, AVIATION...
.KEY MESSAGES... Updated at 808 PM MDT Mon Sep 15 2025
- We will see better thunderstorm chances Tuesday and Wednesday as moisture returns to the area.
- A bit less moisture Thursday into the weekend, but isolated thunderstorms still possible. Temperatures will remain near normal.
&&
.DISCUSSION... Issued at 808 PM MDT Mon Sep 15 2025
We saw some thunderstorms this afternoon and evening, but they struggled since our moisture levels aloft was somewhat limited. For Tuesday we will see a little more moisture creep into the region. Our precipitable water values (PW`s) today will a little below and inch but on Tuesday those values will creep up closer or even a little above an inch. At the same time, the upper level ridge that was centered over the region will drift a little south and weaken some. With the ridge drifting off and a little extra moisture that should be enough to get us better thunderstorm coverage on Tuesday. High temperatures on Tuesday will be a few degrees cooler than Monday`s highs, but that should still be a couple of degrees above average.
On Wednesday we will have a complicated pattern across the western U.S. with a skinny upper level ridge across the intermountain west, while upper level troughs will be in the Midwest and along the southern California coast. The Midwest trough may be just close enough to help get some thunderstorms going Wednesday afternoon as our PW`s will continue to run just a little above 1 inch. By Thursday the upper level ridge to our west will drift eastward be centered through Arizona and Utah. The ridge will help limit, but not eliminate, our thunderstorm chances Thursday afternoon and evening.
For Friday the upper level ridge will drift well south and that will open the door to a series of short wave troughs to move across the region. These troughs will continue to give us a chance for thunderstorms Friday and Saturday. The main trough looks to sweep across the area on Sunday morning and it will move out a lot of moisture from the region. The pattern, very briefly, looks very Fall like on Sunday, but by the start of next week, the extended models have the upper level ridge returning to the desert southwest which would keep us dry and warm our afternoon high temperatures well above average.
&&
.AVIATION... (00Z TAFS) Issued at 808 PM MDT Mon Sep 15 2025
Moisture will be on the increase for Tuesday and that will help give us a better chance for thunderstorms. For tonight, our winds will be light and variable or light from the southeast. Those south to southeast winds will continue during the day on Tuesday but the winds will generally stay below 10 knots. We will see mainly unlimited ceilings tonight, maybe some high ceilings near the International Border during the overnight hours. For much of the day on Tuesday we will have unlimited ceilings, but by the afternoon we will see clouds beginning to increase. We could see some mid to high ceilings in the afternoon into the evening hours. There will be a chance for thunderstorms on Tuesday, with the main threat be strong outflow winds. It still is too early to tell if any TAF sites will see any direct thunderstorm impacts.
&&
.FIRE WEATHER... Issued at 1122 AM MDT Mon Sep 15 2025
Tail end of the monsoon continues through the period. Modest amounts of moisture will remain in place this week for isolated thunderstorms each day. Risk of flooding will remain on the lower side. Humidity will remain well above the critical level.
Min RHs: Lowlands 25-35% through Saturday. Gila/Black Range 35-50% through Saturday. Sacramento Mtns 40-55% through Saturday. Vent rates fair-good through Saturday.
&&
.PRELIMINARY POINT TEMPS/POPS... El Paso 70 90 69 89 / 20 30 20 20 Sierra Blanca 59 84 60 84 / 20 20 10 20 Las Cruces 63 86 63 84 / 10 40 30 20 Alamogordo 62 87 63 86 / 20 30 20 30 Cloudcroft 45 64 45 63 / 20 40 20 60 Truth or Consequences 62 85 62 84 / 10 40 30 20 Silver City 58 80 58 79 / 10 60 40 40 Deming 64 89 63 87 / 10 50 40 20 Lordsburg 64 86 63 84 / 10 50 30 30 West El Paso Metro 70 88 70 87 / 20 30 30 20 Dell City 62 87 63 87 / 20 10 10 20 Fort Hancock 67 89 68 89 / 20 20 10 20 Loma Linda 61 81 62 80 / 20 30 20 20 Fabens 66 88 67 88 / 20 20 20 20 Santa Teresa 66 87 66 86 / 20 30 30 20 White Sands HQ 65 87 65 86 / 20 30 30 30 Jornada Range 62 86 63 84 / 10 40 30 30 Hatch 62 89 63 87 / 10 40 40 30 Columbus 64 88 65 87 / 10 40 30 20 Orogrande 62 86 62 84 / 20 30 20 30 Mayhill 50 75 50 74 / 20 50 10 60 Mescalero 50 77 50 75 / 20 40 20 60 Timberon 49 73 49 71 / 20 40 20 50 Winston 52 78 51 77 / 20 50 30 40 Hillsboro 59 85 59 84 / 20 50 40 30 Spaceport 60 85 61 84 / 10 40 30 30 Lake Roberts 46 81 52 79 / 10 60 40 50 Hurley 58 82 58 81 / 20 50 40 30 Cliff 49 87 60 86 / 10 60 30 30 Mule Creek 46 83 58 82 / 10 50 30 20 Faywood 59 82 60 80 / 10 50 40 30 Animas 63 87 63 84 / 20 50 20 30 Hachita 62 85 62 84 / 20 40 30 30 Antelope Wells 62 86 62 84 / 20 50 20 30 Cloverdale 61 81 60 79 / 20 60 20 30
&&
.EPZ WATCHES/WARNINGS/ADVISORIES... TX...None. NM...None. &&
$$
FORECASTER...15-Brice
NWS EPZ Office Area Forecast Discussion