Area Forecast Discussion
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432
FXUS64 KEPZ 180520
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
1120 PM MDT Mon Aug 17 2026

...New DISCUSSION, AVIATION...

.KEY MESSAGES...
Updated at 1108 PM MDT Mon Aug 17 2026

 - A sharp downturn in thunderstorm chances is expected for
   Tuesday, and hotter and drier conditions seep in.

 - Higher terrain areas in the Gila and Sacramentos will get a
   slight uptick in thunderstorms late Wednesday and Thursday, but
   with minimal chances in the southern lowlands.

 - The hot and dry pattern looks to become more reliable and
   widespread for the weekend.

&&

.DISCUSSION...
Issued at 1108 PM MDT Mon Aug 17 2026

Not terribly active today, with the Gila particularly falling
short of expectations. Mid-level cold pool was enough to flare up
convection a bit in southern Hudspeth County, with much of the
area from near Esperanza and along the southwest flanks of the
Quitman Mountains receiving 1 to 1.50 inches of rain. And again,
parts of east El Paso received moderate rain, though mostly inside
of Loop-375 this time around, and short-lived.

Going forward, the mid-level upper low remnants, now an inverted
trough, will move or perhaps reorganize further to the west
overnight (in response to a strong MCS in the central Gulf of
California). Upper level support for convection will diminish,
with warm and dry air moving in aloft. If the GFS is correct,
surface dewpoints may even mix-out into the 30s.

A little cooler air aloft will sneak in from the northeast
Wednesday afternoon, and a slight uptick in convection could occur
in the northern higher terrain (Gila, Sacramentos), with an isolated
evening storm drifting into central Sierra County or the northern
Tularosa Basin. Anywhere south of there will be very hostile
terrain.

Thursday still looks more active over the Gila again, likely
spreading into the far SW New Mexico lowlands in the evening, and
a few storms over the Sacramentos. For the south-central Lowlands
and Far West Texas...precip chances look rather low.

And it doesn`t get much better from there, with the subtropical
ridge setting up over northern NM or occasionally drifting
towards the Texas Panhandle, and a warm continental trajectory
limiting convection chances over our area through the weekend. A
weaker inverted trough moving into NE Mexico late in the week will
get deflected well to our south. Temperatures will crawl back up
into the 100-103 range in much of the lowlands, and stay there.

&&

.AVIATION...
(06Z TAFS)
Issued at 1108 PM MDT Mon Aug 17 2026

VFR conditions and light/variable winds overnight. Convection
chances ramp down sharply for Tuesday, so VFR and light winds will
prevail through the forecast period for all terminals.

&&

.FIRE WEATHER...
Issued at 1126 AM MDT Mon Aug 17 2026

Isolated to scattered thunderstorms remain in the forecast through
this evening. The main threat from the storms will be strong and
gusty outflow winds. Away from the thunderstorms our winds will
remain well below critical levels through the end of the work week.
Min RH`s will drop to around 20% on Tuesday, then ranging from
the low to mid teens in the lowlands to the 20`s in area
mountains mid to late week. With the drier air moving in, we will
see lower rain chances for the remainder of the work week, with
chances mainly confined to area mountains. Ventilation rates will
generally range from fair to good over the next couple of days.

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                  72  97  73 100 /  10   0   0   0
Sierra Blanca            65  93  66  97 /  10   0   0   0
Las Cruces               66  95  67  99 /   0   0   0  10
Alamogordo               68  94  70  98 /  10   0   0  20
Cloudcroft               50  72  52  76 /  10  20  10  40
Truth or Consequences    69  94  70  99 /  10   0   0  20
Silver City              62  87  64  91 /  20  10   0  30
Deming                   68  96  69 100 /   0   0   0  10
Lordsburg                69  95  71  98 /  20   0   0  20
West El Paso Metro       73  96  73 100 /  10   0   0   0
Dell City                69  97  69 100 /   0   0   0  10
Fort Hancock             73 100  73 103 /  10   0   0   0
Loma Linda               67  90  68  93 /  10   0   0   0
Fabens                   71  97  71 100 /  10   0   0   0
Santa Teresa             70  94  70  98 /   0   0   0   0
White Sands HQ           72  95  74 100 /   0   0   0  10
Jornada Range            68  95  70  99 /   0   0   0  10
Hatch                    68  98  70 102 /   0   0   0  10
Columbus                 71  96  72 100 /   0   0   0   0
Orogrande                66  93  68  97 /   0   0   0  10
Mayhill                  55  86  57  89 /   0  20   0  30
Mescalero                54  83  57  87 /  10  20  20  40
Timberon                 53  82  55  85 /  10  20   0  20
Winston                  59  86  60  90 /  20   0   0  20
Hillsboro                66  93  67  98 /  20   0   0  20
Spaceport                66  94  68  99 /   0   0   0  20
Lake Roberts             56  87  58  90 /  20  20   0  40
Hurley                   63  90  64  94 /  20   0   0  20
Cliff                    65  95  67  98 /  20  10  10  30
Mule Creek               63  91  66  94 /  20  20  20  60
Faywood                  65  89  66  94 /  20   0   0  20
Animas                   69  95  70  99 /  10   0   0  10
Hachita                  68  94  69  97 /  10   0   0  10
Antelope Wells           68  93  67  97 /  10   0   0   0
Cloverdale               65  89  65  93 /  10   0   0   0

&&

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

$$

FORECASTER...25-Hardiman