Drought in Oklahoma, November 1 to 30, 2022

Area Forecast Discussion
National Weather Service Amarillo TX
1240 AM CDT Tue Nov 1 2022

...New AVIATION...

.SHORT TERM ...
(This evening through Tuesday night)
Issued at 219 PM CDT Mon Oct 31 2022

Overall broad and flat ridge over the majority of the CONUS this
evening. As a result we'll see mild Trick-or-Treat temperatures
this evening with start time temperatures in the upper 60s to mid
70s, and end time temperatures in the mid 50s to lower 60s. A
weak lee surface low will allow for winds to be around 10 to 15
mph out of the south southwest, and should get lighter as we move
past sunset.

Upper level trough will move into the Pacific Northwest on Tuesday
and that will begin to amplify over the western coast. This will
gradually shift the flow downstream over the Panhandles to
southwest. As a result warmer air will be over the Panhandles and
we can expect highs to be in the lower to mid 70s on Tuesday. We
will once again have a lee surface low set up and it will be a bit
stronger with winds in the 15 to 20 mph range with gusts 20 to 30
mph expected. While precipitation is expected at the end of the
week, we expect dry conditions tonight and again on Tuesday.

Weber

&&

.LONG TERM ...
(Wednesday through next Sunday)
Issued at 219 PM CDT Mon Oct 31 2022

Wednesday, lee pressure falls continue in E CO as a vigorous
longwave trough advances over the western CONUS. Guidance has
trended upward just a bit with progged 700mb winds in the
northwestern Panhandles, so will need to keep an eye on this period
and the fuels, as that portion of the area has missed out on recent
rains. Otherwise, while low-level flow will gain a southerly
component and begin to advect moisture northward from the Gulf of
Mexico by the latter part of the day, available moisture remains too
low for any chance of precipitation.

That may change for Thursday as the upper trough continues to
advance eastward with an upper low developing in the base of this
feature over southern Nevada. As a 130/70 knot 250mb/500mb jet
overspreads the Rockies, surface cyclone in E CO will deepen as
well. With a surface ridge in place over the eastern CONUS extending
to the Mississippi River Delta, southerly low level flow looks to
ramp up as the surface low to our north strengthens. Increasing
moist advection will thus present the potential for thunderstorms by
late afternoon and evening, with this potential strongly dependent
on if the quality of moisture can overcome capping aloft. Should
thunderstorms develop, given increasing mid-level southwesterlies
and southerlies near the surface, resulting deep shear would easily
support the development of severe thunderstorms with all hazards in
play, particularly if convective initiation occurs during the late
afternoon. As for other concerns, the northwestern Panhandles may
once again see fire danger, but exact northwestward extent of the
moisture return may prevent fire concerns across a large portion of
the area.

Uncertainty increases for Friday as the upper trough advances. Given
the positive tilt to the longwave trough, an associated surface cold
front looks to push south through the Plains ahead of the upper low.
South of this feature, robust southerly moist advection looks to
continue but with the westward extent of favorable moisture
beginning to erode as 850mb winds become more southwesterly. Thus,
while another round of potential all-hazards severe storms appears
likely somewhere in the southern Plains, the northern and western
extent of this risk will be greatly influenced by the timing of the
aforementioned cold front and amount of dry advection. Additionally,
as the front stalls and the upper low approaches, moderate to heavy
rainfall could develop around the location of the front. Slight
majority of guidance now suggests the front may clear the Panhandles
by the early afternoon, cutting off chances for severe storms with a
clear majority of guidance having the front to our east and south
as the moderate to heavy rain potential ramps up during the
evening. While potentially hazardous weather is favored to remain
elsewhere, enough residual moisture may be present for light rain
following the frontal passage Friday, so have kept mentions of
precip in the forecast. Will nonetheless continue to watch Friday
closely.

Friday night into Saturday, wrap around moisture looks to provide
another shot at precipitation as the upper low traverses W TX. While
this forecaster tried to close the door on wintry precipitation a
couple days ago, most recent 06z GFS had other ideas and suggested
850mb temperatures would drop below 0C, leading to an axis of snow
centered around Dalhart. While ensemble probabilities currently
suggest rain is heavily favored, have nonetheless added at least
some mention of snow to mainly the northwestern CWA. Even if snow
occurs, impacts are unlikely as surface wet bulb temperatures are
favored to remain above freezing.

Expect perhaps a bit of a breeze but otherwise uneventful weather
for Sunday as the upper low exits to the east.

Ferguson

&&

.AVIATION...
(06Z TAFS)
Issued at 1237 AM CDT Tue Nov 1 2022

For the 06Z TAFs, south to southwest winds will increase and
become gusty by late Tuesday morning at the terminal sites as the
pressure gradient tightens in response to a developing surface
trof of low pressure over eastern Colorado and eastern New Mexico.
Otherwise, VFR conditions are expected to prevail at KGUY, KDHT,
and KAMA through late Tuesday evening.

02

&&

.PRELIMINARY POINT TEMPS/POPS...
Amarillo TX                49  73  52  74 /   0   0   0  10
Beaver OK                  51  79  53  77 /   0   0   0  10
Boise City OK              46  74  49  72 /   0   0   0  10
Borger TX                  52  78  55  78 /   0   0   0  10
Boys Ranch TX              48  77  51  77 /   0   0   0   0
Canyon TX                  48  73  51  76 /   0   0   0   0
Clarendon TX               49  73  54  75 /   0   0   0  10
Dalhart TX                 44  74  46  73 /   0   0   0  10
Guymon OK                  49  78  52  77 /   0   0   0  10
Hereford TX                48  74  51  77 /   0   0   0   0
Lipscomb TX                50  76  53  74 /   0   0   0  10
Pampa TX                   50  75  53  74 /   0   0   0  10
Shamrock TX                49  73  53  74 /   0   0   0  10
Wellington TX              49  74  55  76 /   0   0   0  10

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...None.
OK...None.
&&

SHORT TERM...89
LONG TERM....77
AVIATION...02

Hazardous Weather Outlook
National Weather Service Amarillo TX
224 PM CDT Mon Oct 31 2022

OKZ001>003-TXZ001>020-317-010730-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
224 PM CDT Mon Oct 31 2022

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...This Afternoon and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a slight chance of thunderstorms Thursday night across
eastern sections of the Oklahoma and Texas Panhandles as well as a
slight chance of thunderstorms on Friday across the southeast
Texas Panhandle. If storms develop, a few will have the potential
to become strong to severe with all hazards possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.