Area Forecast Discussion
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676
FXUS64 KEPZ 301214
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
614 AM MDT Sat Aug 30 2025

...New AVIATION, FIRE WEATHER...

.KEY MESSAGES...
Updated at 605 AM MDT Sat Aug 30 2025

- Scattered to numerous showers and thunderstorms again tomorrow,
  likely continuing overnight and through Sunday. Temperatures
  will be falling into the 80s by Sunday for the lowlands.

- Thunderstorms through the weekend will have the potential to
  produce locally heavy rainfall and flash flooding, especially
  in the high terrain.

- Precip chances will diminish Monday into Tuesday.

&&

.DISCUSSION...
Issued at 956 PM MDT Fri Aug 29 2025

A messy synoptic pattern, coupled with plenty of atmospheric
moisture across the region, will lead to an active weather pattern,
with potential for a lot of areawide rainfall through the holiday
weekend. High pressure remains over the region, but it has weakened,
shifted to the SE, and getting is getting cut by an upper trough
pushing across the Rockies. Already, we have introduced increased
moisture, which has resulting in a much more active afternoon and
evening Friday. PWATs and dewpoints are forecast to continue to
increase, peaking Sunday. In addition, the loss of the high will
remove a good bit of the stability aloft, with deep moisture, and
cooler temperatures aloft.

Tonight we are anticipating a flow reversal away from our early
evening southerly flow, shifting more northerly due to a passing
shortwave disturbance overnight, and what appears to be a lot of
outflow winds from showers and storms over Central NM. Models do
suggest some additional overnight convective development, and
these showers and storms would track south across the Borderland.

Tomorrow, Saturday, we reset the atmosphere through the morning
hours, adding heat to an already marginally unstable, and quite
moist environment. There does appear to be a possible mid-level
disturbance to our south that could work its way NW toward our area
in the aftn/eve to enhance the orographic and heat instability
inducers for what we think will be scattered to numerous showers and
storms. Rainfall rates will likely be high, and storm motion looks
to be slow. The result should be some areas of localized flash
flooding. There is a Flood Watch out for the SACs for Saturday.

Sunday looks similar, but with a twist.  A frontal boundary will
push in from the NE Saturday night into Sunday morning, tracking SW
across the region. The models suggest this will be an enhancer and a
focuser of rain showers and storms in the overnight, well into
Sunday.

Honestly, Models have not be very consistent of late, so confidence
beyond Sunday is not real high. However, a couple of concurrent GFS
and ECMWF runs are rebuilding the upper high to our NW. This would
put a N and NE flow aloft over our region, and begin to scour out
moisture, pushing it to our S and W, with drier continental air
moving in from the Plains. I don`t see a complete drying that would
remove all POPs, but rain/storm coverage does look to be greatly
reduced.

Tuesday onward, the synoptic pattern is an amplified west coast
ridge and mid west trough, with our area sitting largely under the
ridge, with some potential daily recycling of residual moisture, and
a minor threat of a shortwave disturbance tracking across NM, and
possibly giving our area a slight uptick in storm probability.
Otherwise, it looks like a more dry than wet week, with temperatures
running a bit below normal, due to north flow aloft.

&&

.AVIATION...
(12Z TAFS)
Issued at 605 AM MDT Sat Aug 30 2025

We will see another day with scattered afternoon and evening
showers and thunderstorms. It is still unclear if any of the TAF
sites will see direct impacts from the thunderstorms, so for now I
have left mention of TSRA out of the TAF`s. As convection develops
this afternoon we can update TAF`s if storms look to trend toward
one of the TAF sites. We will see off and on mid ceilings today
and tonight and we could see some MVFR ceilings in and near
thunderstorms. Our surface winds will be light today and tonight
from the south or southeast.

&&

.FIRE WEATHER...
Issued at 605 AM MDT Sat Aug 30 2025

The fire weather threat will continue to be low for the next
several days. We will have a good chance for rain both today and
Sunday, with a few storms producing excessive rainfall. Min today
and Sunday will be 20% or higher across the area. Winds will be
light and from south or southeast this weekend. For the start of
next week, we will have lower rain chances, but min RH`s will
continue to run above 20%. Winds also will stay well below
critical levels for the start of the coming week.

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                  95  73  88  71 /  40  50  70  60
Sierra Blanca            90  65  83  63 /  60  60  80  60
Las Cruces               91  67  85  65 /  30  50  70  60
Alamogordo               92  66  86  64 /  60  50  70  50
Cloudcroft               69  48  62  46 /  70  50  90  50
Truth or Consequences    90  68  85  64 /  40  40  70  50
Silver City              86  62  82  59 /  50  40  80  60
Deming                   94  68  89  66 /  30  40  70  70
Lordsburg                92  69  88  66 /  30  40  60  60
West El Paso Metro       92  72  87  70 /  30  50  70  60
Dell City                93  67  85  64 /  50  50  80  50
Fort Hancock             95  71  91  70 /  50  60  80  60
Loma Linda               87  64  78  63 /  50  50  70  50
Fabens                   94  71  88  69 /  30  60  70  60
Santa Teresa             92  69  85  67 /  30  60  70  60
White Sands HQ           92  69  85  68 /  40  50  80  60
Jornada Range            90  67  85  65 /  40  50  80  60
Hatch                    93  68  88  65 /  30  40  80  60
Columbus                 93  69  88  67 /  30  50  70  70
Orogrande                90  66  83  64 /  40  50  70  50
Mayhill                  79  54  70  52 /  70  60  90  50
Mescalero                81  53  75  51 /  70  50  90  50
Timberon                 77  53  70  50 /  70  60  80  50
Winston                  82  55  79  54 /  60  30  80  50
Hillsboro                90  63  86  61 /  40  40  80  60
Spaceport                90  66  85  63 /  30  40  70  60
Lake Roberts             86  58  83  54 /  60  30  90  60
Hurley                   88  63  83  61 /  40  40  80  60
Cliff                    93  66  91  63 /  50  30  70  50
Mule Creek               88  61  87  60 /  40  20  60  40
Faywood                  87  64  83  61 /  60  40  80  60
Animas                   92  68  88  67 /  40  40  60  60
Hachita                  90  67  85  65 /  30  50  70  60
Antelope Wells           90  66  87  64 /  50  60  70  70
Cloverdale               85  64  83  63 /  60  50  70  60

&&

.EPZ WATCHES/WARNINGS/ADVISORIES...
TX...None.
NM...Flood Watch from noon MDT today through Sunday evening for East
     Slopes Sacramento Mountains Below 7500 Feet-Sacramento
     Mountains Above 7500 Feet-West Slopes Sacramento Mountains
     Below 7500 Feet.

&&

$$

FORECASTER...15-Brice