Area Forecast Discussion
Issued by NWS Pendleton, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS66 KPDT 231800 AAA
AFDPDT

Area Forecast Discussion...Updated
National Weather Service Pendleton OR
1059 AM PDT SAT JUL 23 2016

Updated Aviation Discussion

.SHORT TERM...Morning Update...A weak wave continues to drift across
the region at the moment. This wave should be through much of the
area by noon. The wave has caused some high cloudiness, but this
cloudiness is in the process of thinning and/or dissipating. Behind
the wave conditions will be fair, dry and stable through tonight.
Thus expect generally clear skies with a few thin high clouds at
times through tonight. Onshore surface flow will persist with high
temps remaining below seasonal today. May see some locally breezy
winds near the Cascade gaps late this afternoon and this evening.
Overall current forecast package is in good shape. Updates were
mainly limited to reducing sky cover some and adjusting a few
afternoon high temps. 90

.AVIATION...18Z Tafs...VFR conditions e expected for the next 24
hours. A few mid to high level clouds and a few cumulus over the
mountains are expected today. Clear skies tonight and Sunday
morning. Winds will be mostly 10 kts or less. However, sustained
winds this afternoon at KDLS will be from northwest 15-17 kts with
gusts to 25 kts with winds weakening to around 10-12 kts by
04Z/24th. Winds at other TAF sites will diminish an hour or two
after sunset and quickly become drainage winds that will continue
through overnight.  Polan

.LONG TERM...Previous Discussion...A quiet weather pattern is in
store through next week. A weak trough of low pressure will move
across the region Monday evening but as of now it looks a bit too
dry to trigger any showers or thunderstorms. Afterwords a ridge of
high pressure will be the dominant weather feature through Saturday.
It will become increasingly warm with highs well into the 90s lower
elevations Wednesday and Thursday. By Friday and Saturday it will
become quite hot with afternoon highs in the Columbia Basin and
adjacent valleys in the low 100s to around 105 degrees. Went higher
than the guidance temperatures (which were around 100 degrees) given
the the low level temperatures in the raw model output that support
temperatures of 105-110 degrees.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  83  55  90  59 /   0   0   0   0
ALW  84  60  90  65 /   0   0   0   0
PSC  87  59  92  62 /   0   0   0   0
YKM  86  57  92  62 /   0   0   0   0
HRI  86  57  92  61 /   0   0   0   0
ELN  81  55  88  58 /   0   0   0   0
RDM  83  46  89  52 /   0   0   0   0
LGD  81  49  88  54 /   0   0   0   0
GCD  83  51  91  55 /   0   0   0   0
DLS  84  60  92  64 /   0   0   0   0

&&

.PDT Watches/Warnings/Advisories...
OR...None.
WA...None.
&&

$$

90//99/78


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.