Area Forecast Discussion
Issued by NWS Amarillo, TX

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FXUS64 KAMA 181112 AAA
AFDAMA

Area Forecast Discussion...UPDATED
National Weather Service Amarillo TX
512 AM CST Sat Nov 18 2017

.UPDATE...
Minor update to the forecast. Precipitation band that was expected
to skirt just north of the area has progressed southward into the
Oklahoma and northern Texas Panhandle. Therefore a slight chance
of rain has been noted for the early morning time period.

Weber

&&

.PREV DISCUSSION... /Issued 357 AM CST Sat Nov 18 2017/

DISCUSSION...

Strong cold front moving through the Panhandles this morning will
promote windy conditions for all areas. The strongest winds are
expected to occur between sunrise and noon as we get some better
mixing, with winds diminishing thereafter. Some areas have
already gusted 45 to 50 mph. Expect that sustained winds will
range in the 30 to 39 mph range. Will keep an eye on this system
and some areas may need to be upgraded to High Wind Warning if
stronger gusts get reported. Wind Advisories are in effect for all
of the Panhandles until 3 PM CST today.

High temperatures today have already occurred shortly after
midnight as several areas were still mild in the 60s and even
lower 70s. Although the 24 hour highs have already been met, the
afternoon maximum temperatures are expected to be in the upper 40s
(NW) to mid 50s (SE). Strong north winds combined with the
morning low temperatures, expect that the wind chills will be in
the upper 20s (NW) to lower 40s(SE) this morning. Elevated Fire
Weather possible today and tomorrow (See Fire Weather Discussion).

Cool northerly flow will remain in play until Sunday afternoon, as
surface winds shift back to the southwest and high temperatures
are expected to be around 60 for most of the Panhandles.

Upper level high pressure will slowly amplify off the Pacific and
track eastward over the Baja Peninsula through midweek. As a
result heights will start to increase and warmer temperatures
will be in store. Highs on Monday will be in the upper 60s to
lower 70s with mostly clear skies. A weak disturbance may clip the
Panhandles on Tuesday providing a brief cooldown with highs in
the upper 50s to mid 60s. Currently no precipitation anticipated
with this disturbance.

The upper level high will continue to amplify and a gradual
warming will continue over the Panhandles through the end of the
work week. Highs on Wednesday expected to be in the mid 60s,
Thanksgiving looks to be right around 70, and mid 70s for Friday.

Holiday Weekend Outlook. Models in decent agreement. Current
precipitation chances look minimal.  Friday has been covered as
currently forecast to be mild and dry, however cooler air and
breezy north winds may be in store on Saturday. So if you`re more
of a mild to warm weather shopper, then Friday looks good.
Saturday may still be mild for part of the day, but it all
depends on the time of the cold front that the models have
hinted. Right now it looks like a late afternoon front, and
therefore highs might still be mild and in the low 70s, but once
the front moves through winds will shift out of the north and look
to be in the 20 to 30 mph range, with temperatures quickly
dropping and wind chills coming into play. Sunday all around looks
to be cool with highs in the low 50s, and fairly light winds.
Right now the early part of the weekend looks good, but if the
timing of the cold front speeds up, then that can change the
entire weekend forecast. Stay tuned for updates.

Weber

FIRE WEATHER...
Elevated Fire Weather expected late this morning into early
afternoon. Even though temperatures will be quite cool today with
the cold front, strong north wind accompanied by very dry air
could bring relative humidities down close to 20 percent for a
good portion of the central and eastern Panhandles. It looks like
the elevated Fire Weather will be brief and should last 1 to 3
hours.

Sunday southwest winds will return and relative humidities will
once again dip into the upper teens to 20 percent range. Therefore
elevated Fire Weather is expected again on Sunday afternoon.

Weber

AVIATION...
06Z TAF Cycle

VFR conditions will prevail at all three TAF sites through 06Z
Sunday. Westerly winds 15 to 25 knots with gusts near 35 knots
will shift to the north 20 to 30 knots with gusts near 35 to 40
knots after 08Z to 10Z Saturday. The north winds will diminish by
19Z to 20Z Saturday around 10 to 20 knots and then diminish to
light and variable 5 knots or less after 23Z Saturday to 01Z
Sunday.

Schneider

&&

.AMA Watches/Warnings/Advisories...
TX...Wind Advisory until 3 PM CST this afternoon for the following
     zones: Armstrong...Carson...Collingsworth...Dallam...Deaf
     Smith...Donley...Gray...Hansford...Hartley...Hemphill...
     Hutchinson...Lipscomb...Moore...Ochiltree...Oldham...
     Potter...Randall...Roberts...Sherman...Wheeler.

OK...Wind Advisory until 3 PM CST this afternoon for the following
     zones: Beaver...Cimarron...Texas.


&&

$$

89/89/89/11


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