National Weather Service Raw Text Product

Bulk Download

PIL:
Start UTC Date @0z:
End UTC Date @0z:
982 
FXUS64 KAMA 231131
AFDAMA

Area Forecast Discussion
National Weather Service Amarillo TX
531 AM CST Sat Feb 23 2019

.AVIATION...12Z TAFS...
Main aviation concerns with this TAF issuance are the continued
IFR/LIFR ceilings and blowing snow potential at GUY later this
morning. IFR/LIFR ceilings should clear out of AMA in short order
this morning. DHT is a bit more complex, as brief relief may occur
but clouds from the wrap around region of a low pressure to the
northeast should keep them MVFR most of the morning. GUY looks to
remain in IFR/LIFR ceilings through this afternoon, with a period
around midday seeing quarter mile visibilities and blowing snow.
Very strong - with gusts perhaps reaching 50 knots - west and 
northwest winds are expected at all terminals by late morning.
Expect these to subside by this evening. Skies go clear after
sunset and aviation concerns lessen considerably for the latter
parts of the TAF period.

Ferguson

&&

.PREV DISCUSSION... /Issued 510 AM CST Sat Feb 23 2019/ 

DISCUSSION...
In the immediate short term, will allow Dense Fog Advisory to
expire on schedule at 6 AM this morning for ern half of the TX
Panhandle as vsbys are above one quarter of a mile. 

For today, a vigorous upper level storm system will continue to
affect the OK and TX Panhandles with a variety of weather
elements. All short range models, including the 00Z GFS which has
been further north on its track the last couple days, are in  
agreement that this storm system will move along the Interstate 
40 corridor into the wrn TX Panhandle early this morning, then 
turn newd along HWY 60 into nw OK by early this afternoon. Based 
on this forecast track, highest pops overall were placed in the OK
Panhandle with lowest non-mentionable values in the far srn TX 
Panhandle. Snowfall accumulations appear to be greatest across the
OK Panhandle, with a couple inches possible. The nw TX and parts 
of the far nrn TX Panhandle may have up to one inch of snowfall 
accumulation, with little to no accumulation elsewhere in the TX 
Panhandle. Short range models continue to suggest a high wind 
threat across the region today, and have retained the High Wind 
Warning issued earlier for the TX Panhandle until 6 PM today. The 
combination of similar wind speeds across the OK Panhandle plus 
the possibility of a couple inches of snowfall accumulation may 
cause near whiteout conditions for at least a few hours, 
primarily over northern sections of Cimarron, Texas, and Beaver 
counties up against the CO and KS state lines. Also, some concern 
that snow falling in sern CO east into western KS may actually 
blow into parts of the OK Panhandle due to the expected strong 
winds and reduce vsbys accordingly. Based on the above and after 
coordinating with surrounding offices, have decided to convert 
Winter Weather Advisory issued earlier to a Blizzard Warning for 
the OK Pnhndl until 6 PM today with emphasis on the northern parts
of each county in the OK Pnhdl being most impacted. 

Rapidly improving conditions are expected by sunset this evening
with no plans to extend any highlights past 6 PM today. A return 
to dry weather is forecast from Sunday through Friday. Utilized 
Superblend model consensus for all weather elements during this 
time period as most time and effort was spend in the first 5 
periods of this fcst pckg. 

02 

&&

.AMA Watches/Warnings/Advisories...
TX...High Wind Warning until 6 PM CST this evening for the following 
     zones: Armstrong...Carson...Collingsworth...Dallam...Deaf 
     Smith...Donley...Gray...Hansford...Hartley...Hemphill...
     Hutchinson...Lipscomb...Moore...Ochiltree...Oldham...Palo 
     Duro Canyon...Potter...Randall...Roberts...Sherman...
     Wheeler.

     Dense Fog Advisory until 6 AM CST early this morning for the 
     following zones: Armstrong...Carson...Collingsworth...
     Donley...Gray...Hansford...Hemphill...Hutchinson...
     Lipscomb...Ochiltree...Roberts...Wheeler.

OK...Blizzard Warning until 6 PM CST this evening for the following 
     zones: Beaver...Cimarron...Texas.


&&

$$

77/02