Area Forecast Discussion
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635
FXUS64 KEPZ 181129
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
529 AM MDT Tue Aug 18 2026

...New AVIATION, FIRE WEATHER...

.KEY MESSAGES...
Updated at 513 AM MDT Tue Aug 18 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...
(12Z TAFS)
Issued at 529 AM MDT Tue Aug 18 2026

We will have drier conditions today with lower rain chances. Our
winds this morning will be light and variable. Then in the early
afternoon we will of light southeast winds, before the light and
variable winds return for tonight. Ceilings will be unlimited
today, with the only exception being some high and mid ceilings in
the Gila Region where there is a slight chance for afternoon and
evening thunderstorms.

&&

.FIRE WEATHER...
Issued at 529 AM MDT Tue Aug 18 2026

Drier air will limit rain chances today to the Gila Region with
min RH`s in the lowlands near 20% and in the mountains near 30%,
but after today, we will have drier conditions. Min RH`s for
Wednesday into the weekend will range from the low to mid teens in
the lowlands to the 20`s in area mountains. Winds will stay well
below critical levels this week. We will see just a slight chance
for rain each afternoon after today mainly in area mountains. Vent
rates will be good today and Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                  73 100  74 102 /   0   0   0   0
Sierra Blanca            66  97  67  99 /   0   0   0   0
Las Cruces               67  99  69 101 /   0  10   0   0
Alamogordo               70  98  72  99 /   0  20  10  20
Cloudcroft               52  76  54  76 /  10  40  20  50
Truth or Consequences    70  99  72  99 /   0  20  20  10
Silver City              64  91  64  92 /   0  30  20  50
Deming                   69 100  70 102 /   0  10   0   0
Lordsburg                71  98  71  99 /   0  20   0  10
West El Paso Metro       73 100  75 102 /   0   0   0   0
Dell City                69 100  71 101 /   0  10   0   0
Fort Hancock             73 103  74 106 /   0   0   0   0
Loma Linda               68  93  69  95 /   0   0   0   0
Fabens                   71 100  72 103 /   0   0   0   0
Santa Teresa             70  98  72 101 /   0   0   0   0
White Sands HQ           74 100  75 102 /   0  10   0  10
Jornada Range            70  99  72 100 /   0  10   0  10
Hatch                    70 102  72 104 /   0  10  10  10
Columbus                 72 100  74 102 /   0   0   0   0
Orogrande                68  97  70 100 /   0  10   0  10
Mayhill                  57  89  60  88 /   0  30  20  30
Mescalero                57  87  58  88 /  20  40  20  50
Timberon                 55  85  57  86 /   0  20  10  20
Winston                  60  90  62  91 /   0  20  20  30
Hillsboro                67  98  69  98 /   0  20  20  10
Spaceport                68  99  70  99 /   0  20  10  10
Lake Roberts             58  90  59  91 /   0  40  20  70
Hurley                   64  94  65  96 /   0  20  20  30
Cliff                    67  98  67  99 /  10  30  20  50
Mule Creek               66  94  66  95 /  20  60  30  60
Faywood                  66  94  67  96 /   0  20  10  10
Animas                   70  99  71 100 /   0  10  10  10
Hachita                  69  97  70  99 /   0  10   0  10
Antelope Wells           67  97  69  99 /   0   0   0  10
Cloverdale               65  93  67  94 /   0   0   0  10

&&

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

$$

FORECASTER...15-Brice