Area Forecast Discussion
Issued by NWS Midland/Odessa, TX

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FXUS64 KMAF 281009
AFDMAF

Area Forecast Discussion
National Weather Service Midland/Odessa TX
509 AM CDT Fri Apr 28 2017

.DISCUSSION...

The latest Aviation Discussion is included below.

&&

.AVIATION...

A cold front will turn winds to the north at most area terminals
this morning, but winds will come around to the southwest this
afternoon with a few higher gusts.  VFR conditions will prevail
areawide today and tonight otherwise.

&&

.PREV DISCUSSION... /issued 428 AM CDT Fri Apr 28 2017/

An active weather pattern continues to bring wind along with large
variations in temperatures. A weak cold front has entered northern
portions of the Permian Basin this morning. Temperatures have cooled
into the 50`s behind the boundary, but it won`t last long as the
front washes out soon after sunrise. This will be in response to a
deepening upper trough over the Four Corners region. Southwesterly
flow aloft will increase and induce an area of low pressure at the
surface over the TX Panhandle. This will increase southwesterly low
level flow across the area again today, but winds don`t look quite
as strong as Thursday. We will see high winds across the Guadalupe
Mountains this afternoon, although less so compared to previous
days. Temperatures will be hot again with highs generally about 10
degrees above normal.

The upper trough deepens further into a closed low to our west by
Saturday morning. A few storms are possible during this time as a
shortwave encounters low level moisture across the eastern
Permian Basin. Meanwhile a cold front will move south across the
TX Panhandle and E NM reaching the northern Permian Basin early
Saturday morning. This front may stall during the day in response
to increasing ascent ahead of the upper storm. Even if the front
doesn`t move through, temperatures will be much cooler across the
area due to extensive cloud cover. Expect strong winds as well
during the day Saturday with high winds again across the Guadalupe
Mountains. The front will then blast through Saturday night as
the upper trough lifts into OK. The ECMWF is an outlier, but it is
worth mentioning that it brings a mix of rain/snow into northern
portions of the Permian Basin Saturday night. Have not included
this solution in the forecast, but it bears watching. Nonetheless,
expect strong northerly winds and sharply colder temperatures by
Sunday morning. Lows are expected to fall into the 30`s and 40`s
with freezing temperatures possible across the higher elevations
of the Guadalupe and Davis Mountains and northern portions of Lea
County. Full green-up has not yet occurred across these locations
so will hold off on any freeze products and go with an SPS
highlighting the late season freeze. FYI...the record for Midland
International is 41 degrees for April 30.

Cooler temperatures won`t last long as westerly mid level flow
brings above normal temperatures back to area Monday and Tuesday.
Another decent cold front will drop temperatures again by
Wednesday. Unfortunately, much of the region will remain dry over
the next week.

FIRE WEATHER...

It will be hot and windy again today, but winds won`t be quite as
strong and RH/s will not be as low as Thursday.  It appears the best
20 foot winds will be over SE NM this afternoon, but since minimum
RHs will struggle to drop to 15% or less, critical conditions are
not expected.  The Guadalupe Mountains will be windier than SE NM,
but afternoon RH/s will drop to 15-20% there.  Farther south,
minimum RHs will drop to 10-15%, but 20 foot wind speeds will not
eclipse 20 mph sustained for very long, if at all.  Therefore, will
issue a Fire Danger Statement for locations along and west of a
Hobbs to Big Bend line for this afternoon and early evening.

Recovery will be poor over southwest texas tonight, but good farther
north where a cold front moving into the region will cool
temperatures more.  Just how far south this front moves southward by
Saturday afternoon will determine whether near critical, or
critical, fire weather conditions may occur Saturday afternoon.
Locations from the Guadalupe Mountains to the Upper trans Pecos, or
perhaps the SE NM Plains and portions of the Permian Basin could see
the heightened fire weather conditions.  It does appear colder air
will splash southward Saturday night and Sunday, and mitigate fire
weather concerns for a day or two.

&&

.PRELIMINARY POINT TEMPS/POPS...
Big Spring                     92  61  72  40 /   0  30  30  40
Carlsbad                       89  55  64  36 /   0  20  20  20
Dryden                         96  66  84  45 /   0  10  10  20
Fort Stockton                  95  62  74  41 /   0  10  20  20
Guadalupe Pass                 82  48  59  33 /   0  10  20  20
Hobbs                          86  50  61  34 /   0  20  30  30
Marfa                          88  60  67  35 /   0  10  20  10
Midland Intl Airport           92  60  72  40 /   0  20  30  40
Odessa                         91  60  71  38 /   0  20  30  30
Wink                           92  58  70  39 /   0  20  20  20

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...High Wind Warning from 11 AM this morning to 8 PM MDT this
     evening for Guadalupe Mountains of Eddy County.

     High Wind Watch from Saturday afternoon through Saturday evening
     for Guadalupe Mountains of Eddy County.

TX...High Wind Warning from 11 AM this morning to 8 PM MDT this
     evening for Guadalupe Mountains.

     High Wind Watch from Saturday afternoon through late Saturday
     night for Guadalupe Mountains.

&&

$$

99/99/



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