Area Forecast Discussion
Issued by NWS Midland/Odessa, TX

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613
FXUS64 KMAF 262140
AFDMAF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
340 PM CST Thu Feb 26 2015

.DISCUSSION...

Temperatures will continue to fall across the area tonight as
cold air advection continues in the wake of a cold front that
moved through the region early in the day. A few light snow/sleet
showers have moved across southeastern New Mexico and the Permian
Basin through this afternoon, though little to no accumulation has
resulted. This will change tonight, however, as low and midlevel
moisture will increase ahead of a disturbance that will move
through the region over the next 24 hours. This increased moisture
will result in the development of snow, first across southeastern
New Mexico this evening, gradually spreading southeast across the
Trans Pecos and Permian Basin overnight. The greatest
accumulations are expected to be over Lea county New Mexico as
well as the northern Permian Basin, where 2 to 4 inches of snow
are possible through late Friday morning. Accumulations may also
be enhanced on the lee side of higher terrain across Eddy county
New Mexico as well as the Guadalupe Mountains of southwest Texas
in Culberson county due to upslope flow generated by a brisk
easterly to northeasterly wind. Thus, a Winter Weather Advisory
has been issued through late Friday morning for the aforementioned
areas, so please see the appropriate product for details. South of
the advisory area, mainly across the southern Permian Basin and
Trans Pecos, 1 to 2 inches of snow accumulation are possible
before the disturbance shifts to the east of the area on Friday
afternoon. Have also gone ahead and upgraded the High Wind Watch
for the Guadalupe Mountains to a High Wind Warning tonight through
Friday morning, with brisk northeast winds expected to gust up to
65mph in the Warning area. Please see that appropriate product for
further details.

Friday looks to be the coldest day of the next week, with highs
ranging from the low to middle 20s across far southeastern New
Mexico and northern Permian Basin, to upper 40s and low 50s near the
Rio Grande. Breezy east to northeast winds will also result in
widespread wind chill values in the single digits and teens
through midday Friday. Have also trended a bit cooler over areas
expected to see the most snowfall both on Friday and Friday night.
The threat of a wintry mix of precipitation will continue through
Saturday, mainly across the far eastern Permian Basin and Western
Low Rolling Plains, before a return to southerly surface winds
late Saturday mark the beginning of a warming trend that will
continue through the middle of next week. The warming trend will
be further supported by yet another shortwave rounding the back of
the longwave CONUS trough, which will begin to dig south across
the west coast, resulting in southwesterly flow at 850mb by
Sunday. Near to even slightly above normal temperatures in the low
to mid 60s to low 70s are expected from Sunday through Wednesday,
and there`s another chance for rain across portions of the area
Sunday night through Monday night. As the aforementioned trough
over the western US begins to move east on Tuesday, the focus for
precipitation will shift north, yielding a dry forecast for late
in the extended. By next Wednesday night/Thursday, another cold
front associated with the upper trough looks to impact the area,
though the GFS is roughly 12 hours faster with this feature than
the ECMWF, so will maintain near normal temperatures on Wednesday,
and then slightly cooler for Thursday, with highs once again
dropping below normal into the 50s.

&&

.PRELIMINARY POINT TEMPS/POPS...
ANDREWS TX                 19  26  24  48  /  60  40  30  20
BIG SPRING TX              20  26  24  46  /  50  60  30  20
CARLSBAD NM                25  32  26  58  /  60  20  20  10
DRYDEN TX                  32  40  36  54  /  20  20  20  20
FORT STOCKTON TX           26  37  30  60  /  20  20  20  10
GUADALUPE PASS TX          17  33  23  55  /  30  20  20  10
HOBBS NM                   19  27  24  48  /  70  40  20  10
MARFA TX                   21  46  21  62  /  10  20  10   0
MIDLAND INTL AIRPORT TX    21  29  25  49  /  40  30  30  20
ODESSA TX                  21  30  26  50  /  40  30  20  20
WINK TX                    25  32  30  57  /  40  20  20  10

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...WINTER WEATHER ADVISORY from 8 PM this evening to 11 AM MST
     Friday FOR THE FOLLOWING ZONES... Central Lea County...Eddy
     County Plains...Guadalupe Mountains of Eddy County...
     Northern Lea County...Southern Lea County.

TX...HIGH WIND WARNING until 8 AM MST Friday FOR THE FOLLOWING
     ZONES... Guadalupe Mountains.

     WINTER WEATHER ADVISORY from 9 PM CST /8 PM MST/ this evening to
     Noon CST /11 AM MST/ Friday FOR THE FOLLOWING ZONES...
     Andrews...Borden...Dawson...Gaines...Guadalupe Mountains...
     Howard...Martin...Mitchell...Scurry.


&&

$$

99/84

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