Area Forecast Discussion
Issued by NWS Amarillo, TX

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FXUS64 KAMA 201738
AFDAMA

Area Forecast Discussion
National Weather Service Amarillo TX
1238 PM CDT Fri Jul 20 2018

.AVIATION...
VFR conditions are expected throughout the 18Z TAF period. An
isolated TSRA will be possible around the KDHT and KGUY area
early this evening. At this time, confidence on timing and
location still too low to include mention, and will make
amendments when applicable. Any storm that does develop will have
potential for brief heavy rain and strong outflow winds.
Otherwise, light southwest winds will increase to around 15 knots
this afternoon with occasional gusts. Winds should further
diminish after 06Z and be sustained out of the SW for KAMA and
N/NE for KDHT/KGUY at 5-10 kts throughout remainder of the TAF
period.

&&

PREV DISCUSSION... /Issued 439 AM CDT Fri Jul 20 2018/

DISCUSSION...
An upper high over the Four Corners region and southern Rockies
today will slide southeast later today through Saturday across the
Panhandles and southern Plains states before retreating back to
the west and north by late Saturday over the southern Rockies once
again. The upper high will then remain over the Four Corners
region and southern Rockies Sunday into Monday. A stalled frontal
boundary remains across the Oklahoma Panhandle and northern Texas
Panhandle and should be the focus for continued chances for
isolated convection this afternoon and this evening across the
northern portions of the forecast area. The frontal boundary will
slide south and west across the central, western and southern
portions of the Texas Panhandle Saturday and remain across the
southern and western Panhandles Sunday and then push south out of
the forecast area Sunday night and Monday.

Continued hot conditions expected today through Sunday as highs
climb above 100 to 105 degrees. Heat Advisory criteria of at least
105 degrees met today across the Panhandles with the exception
of Palo Duro Canyon where an Excessive Heat Warning will be in
effect for highs of 110 degrees or higher. In addition, record
highs expected to be broken today at Amarillo, Dalhart and Borger.
As the upper high retreats further back to the south and west
next week across the southwestern states and southern California,
a series of shortwave trough forecast to track southeast out of
the central Rockies and approach the Panhandles Sunday night and
Monday through the end of next week bringing increasing chances
for convection to the forecast area.

Schneider

&&

.AMA Watches/Warnings/Advisories...
TX...Heat Advisory until 8 PM CDT this evening 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.

     Excessive Heat Warning until 8 PM CDT this evening for the
     following zones: Palo Duro Canyon.

OK...Heat Advisory until 8 PM CDT this evening for the following
     zones: Beaver...Cimarron...Texas.


&&

$$

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