Area Forecast Discussion
Issued by NWS Midland/Odessa, TX

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105
FXUS64 KMAF 290953
AFDMAF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
453 AM CDT Fri May 29 2015

.DISCUSSION...
Rainfall totals from yesterday`s thunderstorm activity show
significant rains occurred over northern and eastern portions of
the Texas Permian Basin, and over the southern portions of the
Rolling Plains. As a cold front makes its way southward into the
area Friday evening into Saturday, thunderstorms are expected to
develop ahead of and along the cold front, providing the potential
for flash flooding across these same areas.

By mid-afternoon today, severe thunderstorms could form across
portions the Trans-Pecos Region and Permian Basin as well. Models
are consistent in forecasting a surface low pressure circulation
over western portions of the Permian Basin this afternoon. This
will aid in the development of a quasi-dryline across western
portions of the CWA. East of the dryline, CAPE values approaching
4000 J/KG with 700-300 mb lapse rates of nearly 8C/km are
expected. Even without impressive bulk shear values, the heating
of the day should see thunderstorm development with some storms
reaching severe levels. As the day progresses, the low level
circulation over the western Permian Basin is expected to move westward,
allowing for increased low level moisture into the area. We should
also start to see the shift of the convection northward towards
approaching frontal boundary. On Saturday,thunderstorm activity
should gradually shift southward with the front into the southern
and western portions of the CWA.  Sunday is looking like a drier day.

As an upper level ridge builds over the western portions of the
area, we will see a slightly drier pattern starting Sunday and
continuing into next week. However, with an intensifying surface
trough from the Central Plains into southwest Texas, we will not
be totally rain free. There will be a continued chance for
afternoon and evening thunderstorms Tuesday through Friday along
this surface feature.



&&

.PRELIMINARY POINT TEMPS/POPS...
ANDREWS TX                 90  64  77  60  /  20  60  40  10
BIG SPRING TX              89  66  79  61  /  20  60  50  10
CARLSBAD NM                93  63  81  61  /  10  40  30  10
DRYDEN TX                  92  72  85  67  /  20  30  50  20
FORT STOCKTON TX           94  66  82  62  /  20  30  50  10
GUADALUPE PASS TX          89  60  75  57  /  10  20  30  20
HOBBS NM                   88  61  74  58  /  20  60  30  10
MARFA TX                   89  56  79  55  /  20  20  50  30
MIDLAND INTL AIRPORT TX    90  66  80  61  /  20  50  50  10
ODESSA TX                  90  66  79  61  /  20  50  50  10
WINK TX                    95  68  83  62  /  20  40  40  10

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...FLASH FLOOD WATCH from this evening through Saturday afternoon
     FOR THE FOLLOWING ZONES... Borden...Dawson...Glasscock...
     Howard...Mitchell...Reagan...Scurry.


&&

$$

67/03

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