Area Forecast Discussion
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FXUS64 KEPZ 252154
AFDEPZ

Area Forecast Discussion
National Weather Service El Paso TX/Santa Teresa NM
254 PM MST Sat Feb 25 2017

.SYNOPSIS...
A series of Pacific storm systems will keep the winds in the
Borderland on the breezy to windy side through next Tuesday. Deep
zonal flow aloft will keep us dry for the next several days with
not much change in temperatures as they remain near seasonal.
Stronger winds are expected Sunday and again on Tuesday. The
mountains of the Gila Wilderness may see a few brief light showers
Sunday with many of the lowlands under a wind advisory and Fire
Weather watch for the afternoon. More areas mainly to the north
and west in our forecast area will see some precipitation on
Tuesday, as a stronger Pacific storm passes. High pressure takes
control beginning next Wednesday with dry weather, less wind and
warmer temperatures for the rest of the week.

&&

.DISCUSSION...
A fairly strong and zonal flow pattern pattern aloft, with
progressive storm tracks across the Western U.S. will bring the
Borderland a couple of Pacific low pressure systems Sunday and
again on Tuesday. Both of these open troughs pass mainly  to our
north bringing fairly strong winds to the region (at least in the
advisory category).

Our 12z raob today showed a very deep layer of zonal flow from
the surface into the lower stratosphere with 135 knot jet max
overhead (actuary you realize it is not overhead but over eastern
NM). In response to strong winds orthogonal to the orography and
the approaching short wave trough Sunday, lee cyclogenesis will
take place to our northeast at the surface, tightening the
surface pressure gradient. With ample heating allowing mixing to
near 600mb we will tap into 50 knot winds. Thus wind advisories
for a lot of the lowlands (for the afternoon hours) and a fire
weather watch(lowlands east of the rio Grande) have been issued.

Monday remains an in-between day (the two Pacific Systems) but
stay baseline breezy, dry and mild.

The second stronger system on Tuesday with its Pacific front
is current forecast to be sharper and deeper than Sunday`s
system. It presently is forecast to produce stronger winds
(advisory most areas with a good potential for a high wind
warning in the select areas east of the mountains in el Paso and
otero counties). In general these Pacific systems particularly
this time of year do not produce much precipitation coverage. We
presently have isolated to scattered POPs in the mountains and
northern and western lowlands for Tuesday and Tuesday night.
Again, winds will likely be the bigger concern with wind/gust
potential in the 40/65 mph range with of course blowing dust
likely to be a major concern for travel.

This Pacific system should exit later Tuesday cooling us down
about10 to 12 deg F Wednesday. High pressure aloft returns to
the SW U.S. starting midweek into the rest of the week bringing a
return to a warming trend with lighter winds for the rest of the
week.




&&

.AVIATION...Valid 26/00Z-27/00Z...
VFR conditions with SKC-FEW250 thru 18z with winds generally
250-270 at 15G25KTs and gusts east of area mtns. After 18z 280-290
with winds 25-30KTS and gusts 35-45kts with decreasing
visibilities. BLDU could cause local visibilites down to 1SM.

&&

.FIRE WEATHER...
Windy and dry weather returns to the region Sunday. As a result
critical fire weather conditions will also return to the eastern
fire weather zones. Both winds and min RH`s will reach Red Flag
conditions. Thus, a Fire Weather Watch has been issued for zones
055, 056 and 112 and will be upgraded to a Red Flag warning tomorrow
morning for Sunday afternoon/evening for these same zones (unless
something dramatically changes in the models). Tomorrow all other
fire weather zones will reach near Red Flag Warning conditions but
not cross the thresholds that would warrant a full blown warning.
Next Tuesday into Wednesday brings more winds with min RH`s above
critical thresholds followed by a period of calm, warm and dry
weather.


&&

.PRELIMINARY POINT TEMPS/POPS...
El Paso                 41  67  44  68 /   0   0   0   0
Sierra Blanca           41  69  43  69 /   0   0   0   0
Las Cruces              35  64  36  65 /   0   0   0   0
Alamogordo              38  64  39  64 /   0   0   0   0
Cloudcroft              26  38  24  42 /   0   0   0   0
Truth or Consequences   36  61  36  63 /   0   0   0   0
Silver City             36  52  36  54 /   0  10   0   0
Deming                  33  63  35  64 /   0   0   0   0
Lordsburg               33  60  34  62 /   0  10   0   0
West El Paso Metro      42  66  45  67 /   0   0   0   0
Dell City               34  69  36  68 /   0   0   0   0
Fort Hancock            38  73  41  72 /   0   0   0   0
Loma Linda              43  65  42  65 /   0   0   0   0
Fabens                  36  70  42  70 /   0   0   0   0
Santa Teresa            37  66  40  67 /   0   0   0   0
White Sands HQ          41  65  42  65 /   0   0   0   0
Jornada Range           32  64  34  65 /   0   0   0   0
Hatch                   35  63  36  64 /   0   0   0   0
Columbus                37  66  39  68 /   0   0   0   0
Orogrande               40  65  40  67 /   0   0   0   0
Mayhill                 33  54  31  53 /   0   0   0   0
Mescalero               31  51  29  53 /   0   0   0   0
Timberon                31  49  29  51 /   0   0   0   0
Winston                 31  53  27  56 /   0  10   0   0
Hillsboro               36  59  32  61 /   0   0   0   0
Spaceport               33  61  34  62 /   0   0   0   0
Lake Roberts            27  50  28  53 /   0  20   0   0
Hurley                  32  55  36  58 /   0  10   0   0
Cliff                   33  54  38  59 /   0  10   0   0
Mule Creek              32  52  36  56 /   0  10   0   0
Faywood                 34  57  31  60 /   0  10   0   0
Animas                  34  64  34  65 /   0  10   0   0
Hachita                 31  64  34  65 /   0   0   0   0
Antelope Wells          33  65  36  66 /   0   0   0   0
Cloverdale              39  61  36  61 /   0   0   0   0

&&

.EPZ WATCHES/WARNINGS/ADVISORIES...
NM...Fire Weather Watch Sunday afternoon for NMZ112.

     Wind Advisory from 1 PM to 7 PM MST Sunday for NMZ404>407-410-
     411-413-417.

TX...Fire Weather Watch Sunday afternoon for TXZ055-056.

     Wind Advisory from 1 PM to 7 PM MST Sunday for TXZ418>424.

&&

$$

20/28 NOVLAN / PAZOS


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