Area Forecast Discussion
Issued by NWS Midland/Odessa, TX

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FXUS64 KMAF 152308
AFDMAF

Area Forecast Discussion
National Weather Service Midland/Odessa TX
508 PM CST Fri Dec 15 2017

.DISCUSSION...

The latest Aviation Discussion is included below.

&&

.AVIATION...

VFR conditions will prevail tonight and Saturday at all area
terminals. Southerly winds will increase late Saturday morning, as
will mid clouds, but VFR conditions will persist through the
afternoon.

&&

.PREV DISCUSSION... /issued 241 PM CST Fri Dec 15 2017/

An upper trough is over the Great Lakes region and extends southwest
towards West Texas and Mexico. Expect temperatures today across the
area to be slightly cooler than yesterday with highs mostly in the
50s. The extension of the upper trough over Mexico gets separated
from the rest of the upper trough tonight and gets entrenched in the
upper flow of another upper trough digging south over the west CONUS
on Saturday. This upper trough will move over West Texas on Saturday
and will increase upper lift over the area. Moisture will also be
increasing from southerly winds so rain chances will be possible across
the eastern portion of the CWA on Saturday. The main part of the
west CONUS upper trough will move over Arizona and New Mexico on
Sunday. This will increase precipitation chances across southeast
New Mexico and far West Texas on Sunday. Southwest to west surface
winds on Sunday will result in temperatures heating up into the
60s across much of the Permian Basin from downslope warming.
Temperatures will not change much into Monday and Tuesday.

Zonal flow takes shape on Wednesday with another upper trough
beginning to dig southeastward over the west CONUS. Southerly winds
will be across the area with a surface trough developing across
southeast New Mexico. This will result in temperatures warming up on
Wednesday from the previous day. The upper trough moves over the
four corners region on Thursday with temperatures across the area
cooling slightly. The northern portion of the upper trough moves
over the Midwest with the southern portion digging south into
northern Mexico. A cold front from the northern portion moves into
the CWA Thursday night/Friday morning. This will result in
temperatures cooling down significantly next Friday. The models are
indicating possible wintry precipitation next weekend into Christmas
Day but the models keep changing so do not have too much confidence
in this. Will keep monitoring this system for further development.

&&

.PRELIMINARY POINT TEMPS/POPS...
Big Spring                     32  54  39  65 /   0  10  10  10
Carlsbad                       27  60  37  61 /   0  10   0  20
Dryden                         37  53  38  65 /   0  20  10   0
Fort Stockton                  34  56  42  67 /   0  10  10  10
Guadalupe Pass                 31  49  39  53 /   0   0   0  30
Hobbs                          26  54  35  59 /   0  10   0  10
Marfa                          26  53  31  61 /   0  10   0  10
Midland Intl Airport           32  53  39  65 /   0  10  10  10
Odessa                         32  53  39  64 /   0  10  10  10
Wink                           29  56  36  66 /   0  10   0  10

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...None.
TX...None.
&&

$$



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