Area Forecast Discussion
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370
FXUS64 KEPZ 011708
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
1108 AM MDT Mon Sep 1 2025

...New DISCUSSION, AVIATION, FIRE WEATHER...

.KEY MESSAGES...
Updated at 1107 AM MDT Mon Sep 1 2025

- Isolated thunderstorm chances through much of the week will be
  confined to area mountains.

- High temperatures through the week remain near normal to just
  above normal.

- Rainfall chances start to return for Friday into Saturday as we
  get some moisture returning from the south.

&&

.DISCUSSION...
Issued at 1107 AM MDT Mon Sep 1 2025

Upper high has started to build in and pushed moisture mainly
south of the International Border. Some light rain has continued
over southern Hidalgo county and near the RGV of Hudspeth county
but that`s about all. Do not expect much storm activity later this
afternoon and evening with little instability over area mountains
and drier air at the surface filtering in. During the overnight
hours, there will be gradual clearing over much of the area except
near southern Hidalgo and Luna counties. Light winds and lower dew
points will allow morning lows to drop a few degrees from this
morning`s lows.

For Tue through most of Thu, upper ridge axis will be directly
through CWA extending from NW to SE. This will keep the area in a
general dry pattern. NBM kept 20-30 PoPs going for these days but
feel with the ridge axis in place and dew points dropping into the
upper 30s to lower 40s up north that those seemed a little high
and brought down mainly in the slight chance category.
Temperatures will be running near to slightly above average
during this period with highs in the mid 80s to mid 90s for the
lowlands.

Things could start getting interesting going into the Fri/Sat
periods. There has been a trend in the operational models bringing
what will likely be named tropical storm Lorena up through NW
Mexico and across the Borderland. The exact track will depend on
the speed of approaching trough over the Pacific Coast and how the
high breaks down over the Four Corners into eastern Mexico. Taking
a quick look at the GFS Ensemble mean, it seems there is a trend
towards more members moving this moisture into the region,
especially west of the RGV. There is still a lot of uncertainty
with this track, but did keep NBM PoPs in the low to mid chance
category for now. If this system does come to fruition, we could
easily be looking at widespread 1-2" rainfall amounts along the
main track of the remnant upper trough. Temperatures will also
cool down significantly and current highs in forecast would be
several degrees too warm for Sat. Will wait for a little more
consistency from models before jumping on board too heavily.

As the tropical remnants move out, we will see some ridging
building over the area but then a fairly potent upper trough
moving in from the west in the long range that could be the end to
the Monsoon Season, but we will wait and see.

&&

.AVIATION...
(18Z TAFS)
Issued at 1107 AM MDT Mon Sep 1 2025

P6SM FEW-SCT060-080 SCT-BKN200-250 through the afternoon with some
gradual clearing from north to south. Expect to see generally BKN
skies from the NM Bootheel into southern Hudspeth county
overnight. Rain showers will also remain confined to these areas
with just an isolated shower possible in the higher terrain this
afternoon. Winds generally east to southeast AOB 12KTS with a few
gusts this afternoon at KDMN and KLRU to around 20KTS.

&&

.FIRE WEATHER...
Issued at 1107 AM MDT Mon Sep 1 2025

Drier air has started to move into the area from the north and
will continue to do so through midweek. Temperatures will be
gradually warming up back into the upper 80s to mid 90s for the
lowlands by Wednesday. Min RH`s will be falling back into the mid
teens to mid 20s as well by midweek but winds will remain light.
Just some isolated mountain storms are possible each afternoon.
Going into Fri and Sat, there are some hints at some remnant
tropical moisture moving in which would bring widespread moderate
rainfall totals to the area.

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                  71  91  68  94 /  10  10   0   0
Sierra Blanca            60  87  58  89 /  10  10   0   0
Las Cruces               64  89  61  91 /  10  10   0   0
Alamogordo               64  88  62  90 /  10  10   0   0
Cloudcroft               46  66  44  69 /  10  10   0  10
Truth or Consequences    65  88  62  90 /  10  10   0  10
Silver City              59  82  62  84 /  20  20  10  10
Deming                   65  91  62  92 /  10  10   0   0
Lordsburg                66  87  63  90 /  10  10   0  10
West El Paso Metro       69  89  67  91 /  10  10   0   0
Dell City                63  90  61  92 /   0  10   0   0
Fort Hancock             67  91  64  93 /  10  10   0   0
Loma Linda               62  83  61  85 /   0  10   0   0
Fabens                   66  90  64  91 /  10  10   0   0
Santa Teresa             66  89  62  91 /  10  10   0   0
White Sands HQ           67  90  62  92 /  10  10   0   0
Jornada Range            64  89  58  91 /  10  10   0   0
Hatch                    65  90  62  92 /  10  10   0   0
Columbus                 66  89  63  90 /  10  10   0   0
Orogrande                63  87  60  89 /   0  10   0   0
Mayhill                  52  77  49  80 /   0  10   0  20
Mescalero                51  78  49  80 /  10  10   0  10
Timberon                 51  75  49  77 /   0  10   0  10
Winston                  53  80  51  82 /  20  20   0  20
Hillsboro                61  87  59  90 /  20  10   0  10
Spaceport                64  88  61  89 /  10  10   0   0
Lake Roberts             54  82  47  85 /  20  30  10  20
Hurley                   60  84  57  86 /  20  10   0  10
Cliff                    59  87  54  91 /  20  20  10  10
Mule Creek               59  85  50  87 /  20  20  10  20
Faywood                  61  84  59  85 /  20  10   0  10
Animas                   65  88  61  90 /  10  10   0  10
Hachita                  63  86  60  88 /  10  10   0  10
Antelope Wells           63  84  62  87 /  20  10   0  10
Cloverdale               61  81  60  83 /  20  10  10  10

&&

.EPZ WATCHES/WARNINGS/ADVISORIES...
TX...None.
NM...None.
&&

$$

FORECASTER...26-Grzywacz