Area Forecast Discussion
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509
FXUS64 KEPZ 121748
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
1148 AM MDT Wed Aug 12 2026

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


.KEY MESSAGES...
Updated at 1107 AM MDT Wed Aug 12 2026

 - Increasing storm coverage this week into the weekend. Storms
   will be capable of gusty winds and localized flash flooding.

 - Highest risk for flooding will be focused over mountain zones.

 - Slightly cooler temperatures next few days. Typical mid-August
   temperatures with lowland highs in the mid-90s.

&&

.DISCUSSION...
Issued at 1107 AM MDT Wed Aug 12 2026

Increased moisture across region will improve chances for showers
and thunderstorms the rest of this week and into the weekend.
The persistent area of high pressure will shift east toward the
gulf coast. This will allow a southerly flow of deeper moisture
more typical of a Monsoon pattern into New Mexico for the next
several days. The plume of deeper moisture over Arizona will shift
eastward and fully straddle New Mexico by Friday night.

Precipitable water values have risen above an inch and will peak
at nearly 1.5 inches by Friday night. The increased moisture
availability will support longer lived showers and thunderstorms
capable of producing periods of heavy rainfall with a potential
for localized flooding. Overall rain amounts will vary, which is
typical of convective weather patterns, but some areas will
experience heavy rainfall from strong thunderstorms, especially in
the mountain areas. As rain chances increases for lowlands, so
will the potential for localized flooding, especially in urban
areas toward the weekend.

By late Sunday into early Monday, high pressure aloft will
rebuild over the region, pushing the Monsoonal moisture back to
the west over Arizona. The local area will be under an easterly
flow pattern that will bring in a drier continental air mass that
will cause atmospheric moisture levels to drop and with PW`s
falling below and inch. Lack of moisture will limit rain chances
to mainly the mountains the first part of next week.

&&

.AVIATION...
(18Z TAFS)
Issued at 1107 AM MDT Wed Aug 12 2026

Current conditions SCT-BKN150 BKN250 across S NM and W TX.
Surface winds 210-260 at 8 to 12 knots. Isolated TSRA this
afternoon, with skies FEW-SCT080CB. VCTS mention included at
KTCS and KDMN, but omitted from other sites due to low confidence
in direct impacts. KELP will need to watch for outflow out of
Mexico between 00-03Z, which could lead to temporary 20G30KT and
reduced visibility due to blowing dust.

&&

.FIRE WEATHER...
Issued at 1107 AM MDT Wed Aug 12 2026

Scattered (40-60%) thunderstorms for Gila NF, isolated (20-40%)
for Lincoln NF today. Wetter conditions will increase Min RH to
30-40%. SW winds 10 to 15 mph leading to Good vent rates.

Increasing moisture will result in more widespread rain chances
area wide through the weekend. Storms will pose a risk of
localized flash flooding and erratic outflow winds over mountains.
New rain amounts will be highly variable over the next 7 days,
but mostly likely 0.50-1.00" over local forests. Prevailing SW
winds 10 to 15 mph through Friday shifting to the SE over the
weekend. Drier warmer conditions expected the first part of next
week.

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                  73  96  72  96 /  20  10  20  10
Sierra Blanca            67  92  66  92 /  20  20  30  20
Las Cruces               67  94  67  94 /  20  10  20  10
Alamogordo               69  95  68  95 /  20  10  10  20
Cloudcroft               52  72  52  72 /  20  10  10  50
Truth or Consequences    68  93  68  93 /  20  20  20  10
Silver City              59  84  59  86 /  30  30  20  20
Deming                   66  93  66  95 /  30  20  20  10
Lordsburg                66  89  65  90 /  30  20  20  10
West El Paso Metro       73  95  73  96 /  20  10  20  10
Dell City                71  98  71  97 /  10  10  20  20
Fort Hancock             74  99  73  98 /  20  10  30  20
Loma Linda               67  89  66  89 /  20  10  10  20
Fabens                   72  96  72  96 /  20  10  30  20
Santa Teresa             71  93  70  94 /  20  10  20  10
White Sands HQ           72  95  71  95 /  20  10  20  10
Jornada Range            68  94  67  94 /  20  10  20  10
Hatch                    68  97  68  97 /  20  20  20  10
Columbus                 71  93  70  95 /  30  20  20  10
Orogrande                68  93  67  93 /  20  10  10  10
Mayhill                  59  85  58  84 /  10  20  10  70
Mescalero                56  83  56  83 /  20  10  10  50
Timberon                 54  82  54  82 /  20  10  10  30
Winston                  56  84  56  84 /  40  60  20  60
Hillsboro                63  91  62  92 /  20  40  20  20
Spaceport                66  94  65  94 /  20  20  20  10
Lake Roberts             55  84  55  86 /  40  50  20  50
Hurley                   61  87  60  89 /  30  20  20  10
Cliff                    64  90  63  91 /  60  40  20  10
Mule Creek               60  85  60  87 /  70  40  20  10
Faywood                  63  88  62  89 /  30  20  20  10
Animas                   66  88  65  90 /  30  40  20  20
Hachita                  66  89  65  91 /  20  20  20  10
Antelope Wells           65  88  65  89 /  30  30  20  30
Cloverdale               61  81  61  83 /  30  30  30  30

&&

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

$$

FORECASTER...04-Lundeen