Area Forecast Discussion
Issued by NWS Amarillo, TX

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082
FXUS64 KAMA 180908
AFDAMA

Area Forecast Discussion
National Weather Service Amarillo TX
408 AM CDT Mon Sep 18 2017

.DISCUSSION...
Ongoing showers and thunderstorms expected to linger well into the
morning across eastern sections.  Isolated redevelopment this
afternoon and evening is expected across eastern and south-
central sections where corridor of higher instability expected to
remain.

Strengthening near-zonal flow on Tuesday expected to lead to
deepening of surface trof across Texas and Oklahoma Panhandles,
with dry southwest winds expected as trof migrates eastward across
the area.  Models bring a cold front into the area Tuesday night
and Wednesday, but vary quite a bit on timing of frontal passage.

By late Wednesday southwest flow aloft resumes as western CONUS
trof begins to dig, and then takes on a positive tilt while
remaining west of the forecast area for the remainder of the
forecast.  This prolonged southwest flow is expected to tap
tropical moisture, as an area of low pressure is expected to
develop by the end of the week off the western coast of southern
Mexico.  Healthy pops remain in the forecast Friday through
Sunday as the tropical connection persists.  We may see episodes
of heavy rains over the weekend, particularly if a frontal
boundary slips into the area.

Cockrell

&&

.FIRE WEATHER...
No elevated or critical fire weather conditions are expected today
as relative humidities will remain well above 20 percent.
Elevated to possibly critical fire weather conditions may develop
on Tuesday across the Oklahoma Panhandle and northwestern three-
fourths of the Texas Panhandle as relative humidities fall below
20 percent southwest winds increase.  Light winds on Wednesday
will preclude fire weather concerns.  Southwest winds will
increase again on Thursday but relative humidities are expected to
remain above 20 percent.  Chances for widespread wetting rains
begin on Friday and continue through the weekend.

&&

.PRELIMINARY POINT TEMPS/POPS...
Amarillo TX                89  63  92  61  88 /  10   5   5   0   0
Beaver OK                  92  65  97  60  88 /  20   5   5   0   0
Boise City OK              87  55  89  54  82 /  10   0   0   0   0
Borger TX                  92  67  94  63  90 /  20   5   5   0   0
Boys Ranch TX              90  61  93  60  88 /  10   5   5   0   0
Canyon TX                  89  61  92  61  89 /  10   5   5   0   0
Clarendon TX               90  65  95  64  92 /  20  20  10   0   0
Dalhart TX                 88  55  91  55  86 /   5   0   0   0   0
Guymon OK                  90  60  94  58  86 /  10   5   0   0   0
Hereford TX                89  60  94  60  89 /  10   5   5   0   0
Lipscomb TX                92  68  95  62  89 /  20  10   5   0   0
Pampa TX                   89  66  92  62  88 /  20  10   5   0   0
Shamrock TX                91  66  95  66  93 /  20  20  10   0   0
Wellington TX              92  66  97  68  95 /  20  20  10   5   0

&&

.AMA Watches/Warnings/Advisories...
TX...None.
OK...None.

&&

$$

16/03



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