Area Forecast Discussion
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692
FXUS64 KEPZ 302139
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso Tx/Santa Teresa NM
339 PM MDT FRI SEP 30 2016

.SYNOPSIS...
The back edge of the monsoon moisture plume will slowly pass west
to east across the region this evening and overnight. Until it
clears the area Saturday we continue with chances for isolated
showers and thunderstorms through the evening and tonight. Drier
air moves in to end rain and storm chances across the Borderland
through the weekend. Monday the next system approaches and brings
back storm chances and increased winds. Monday and Tuesday look a
bit windy as the storm passes. Dry air returns Tuesday and the
rest of the week looks dry and somewhat cooler with lighter winds.

&&

.DISCUSSION...
Despite a quite day, after a wet overnight and early morning,
there is still plenty of moisture and incoming instability for
another round of showers later this afternoon and evening. Models
are a bit split on convective activity for tonight...but current
storm activity to our west over SE AZ suggest the potential
continues for our area later, as an upper wave moves over. We have
scattered POPs west and isolated east for the overnight.

Saturday we will see dry air overtake the region as winds veer
westerly and shove out the current plume of moisture east. Ridging
aloft builds for the weekend to help the area warm back to
seasonal normals. Pleasant weather expected for both Saturday and
Sunday with dry and seasonal conditions.

Monday the next Pacific storm system approaches. As it swings into
the southern Great Basin winds turn back southerly and redirect
subtropical moisture back over the area. This is followed by
moderate dynamics aloft and increasing instability. The window of
opportunity is short...but looks pretty good for Monday. By
Tuesday the system passes to our north and winds turn back
westerly. This shoves the moisture out and imports dry air back in
to end rain/storm chances. Both days look breezy to windy.

Cooler weather follows a Pacific front that passes Tuesday. Dry
weather continues for the rest of the work week as broad high
pressure aloft build and linger over the region.

To finish this cycle we look at Friday when there is some
potential in the models for a return of moisture to bring some
precipitation chances back into the region late Fri into Sat.

14-Bird

&&

.AVIATION...Valid 01/00Z-02/00Z...
Another upper level disturbance will move trough the area this
evening.  Thunderstorms will build up over the higher terrain in SW
New Mexico before sunset, and slowly drift east. DMN and TCS have
the best shot at TSRA before 06z.  Leftover rain showers and
embedded thunderstorms may try and make another late night run
towards LRU-ELP, but probabilities are still low.

25-Hardiman

&&

.FIRE WEATHER...
Isolated thunderstorms will develop over the Gila Region and SW New
Mexico over the next few hours...gradually shifting east into the
evening hours. Some rain showers may survive into the Rio Grande
valley again late tonight. Expect excellent RH recovery overnight
thanks to moist ground from last night`s rainfall.

The weekend looks dry...but a deep trough will move into the Four
Corners on Monday with a Pacific cold front pushing across the
area in the afternoon. Residual low level moisture will result in
scattered strong thunderstorms in the afternoon. A strong pressure
gradient will result in breezy SW winds ahead of the front as
well, but RH values will in the 25 to 30 percent range in the
lowlands (higher in the mountains), so critical fire weather
conditions are not anticipated.

25-Hardiman

&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                 61  86  62  87 /  20   0   0   0
Sierra Blanca           56  83  58  86 /  20  20   0   0
Las Cruces              57  84  56  84 /  10   0   0   0
Alamogordo              56  85  57  87 /  20   0   0   0
Cloudcroft              47  68  41  68 /  30  10   0   0
Truth or Consequences   56  83  55  85 /  10   0   0   0
Silver City             53  77  52  78 /  20   0   0   0
Deming                  56  85  54  86 /  10   0   0   0
Lordsburg               55  83  53  84 /  10   0   0   0
West El Paso Metro      60  85  62  87 /  20   0   0   0
Dell City               54  86  57  88 /  20  10   0   0
Fort Hancock            59  87  60  89 /  20  10   0   0
Loma Linda              58  79  59  84 /  20   0   0   0
Fabens                  57  86  59  88 /  20   0   0   0
Santa Teresa            60  85  60  86 /  10   0   0   0
White Sands HQ          59  84  59  86 /  10   0   0   0
Jornada Range           55  84  53  86 /  10   0   0   0
Hatch                   57  84  56  86 /  10   0   0   0
Columbus                58  85  56  86 /  10   0   0   0
Orogrande               59  84  59  87 /  20   0   0   0
Mayhill                 51  76  48  76 /  30  10   0   0
Mescalero               50  76  47  77 /  30  10   0   0
Timberon                49  74  46  74 /  30  10   0   0
Winston                 47  78  48  79 /  20   0   0   0
Hillsboro               53  81  53  84 /  10   0   0   0
Spaceport               56  83  53  85 /  10   0   0   0
Lake Roberts            50  80  48  80 /  20   0   0   0
Hurley                  52  80  51  81 /  20   0   0   0
Cliff                   51  83  49  83 /  20   0   0   0
Mule Creek              49  79  47  80 /  20   0   0   0
Faywood                 54  81  53  83 /  10   0   0   0
Animas                  54  84  53  86 /  10   0   0   0
Hachita                 54  84  52  86 /  10   0   0   0
Antelope Wells          54  82  54  84 /  10   0   0   0
Cloverdale              55  78  54  81 /  10   0   0   0

&&

.EPZ Watches/Warnings/Advisories...
NM...None.
TX...None.
&&

$$

99/14/25



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