Area Forecast Discussion
Issued by NWS Midland/Odessa, TX

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FXUS64 KMAF 250846

Area Forecast Discussion
National Weather Service Midland/Odessa TX
346 AM CDT SUN SEP 25 2016

Radar is showing a large axis of precip from OK extending sw into
the Concho Valley/E PB. Precip is co-located within rich mid level
theta-e ridge axis (~ +2 standard deviations). Meanwhile a cold
front is located from near ATS-near AMA and points newd with drier
air noted in wake of the boundary. Water vapor shows upper low
INVOF SW NM which is forecast to deepen and back the mid level
flow, once the flow starts to back precip will start to redevelop
farther w. A key feature is the 7h low and assocd sharp trof that
will extend ne across the Lower Trans Pecos and PB after 12Z. WAA
and isentropic lift all around 7h will increase sharply and lift
seen on isentropic surfaces 310-315K will increase resulting in
the expansion of precip coverage. Most likely precip will remain
confined within the current watch area, but could reach into parts
of SE NM after 18Z. The cold front will apparently have the best
push across SE NM into the Upper Trans Pecos this AM, but it will
still be a focus for development across the PB. The prolonged
presence of large scale lift and abundance of moisture certainly
does keep concerns high wrt very heavy rain/flash flooding. Cold
front and mstr transport along the front does support precip into
the Sunday night and possibly Monday, but still the PB and Lower
Trans Pecos are the favored areas with increasing upper divergence
as upper low retrogrades into Mon AM. We plan no changes to the
flash flood watch with this issuance. Storm total precip of 4-6
inches are possible across parts of the PB and Lower Trans Pecos.
Precip chances will start to wane by Mon night, especially Tue.
Temperatures will be well below normal Today thru Tue. NE winds
increase mostly after 18Z today and remain up (windy) thru at
least mid morning Mon so there will be a definite cool feel in the
air. The high wind warning for GDP Pass still looks good and we
made no changes. High temperatures will be back in the 80s by Wed.


Big Spring                     76  54  61  52 /  90  90  70  20
Carlsbad                       68  56  61  53 /  50  70  60  20
Dryden                         77  63  68  57 / 100 100  80  50
Fort Stockton                  70  57  61  52 / 100 100  80  40
Guadalupe Pass                 64  48  52  45 /  50  70  40  30
Hobbs                          66  54  60  51 /  60  60  50  20
Marfa                          67  55  59  50 /  70  60  40  40
Midland Intl Airport           72  56  61  52 /  90  90  70  20
Odessa                         75  55  60  53 /  90  90  70  20
Wink                           75  58  61  53 /  90  90  70  30


.MAF Watches/Warnings/Advisories...
TX...Flash Flood Watch through Monday morning for Andrews-Big Bend

     High Wind Warning from 3 PM this afternoon to noon MDT Monday
     for Guadalupe Mountains.


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