Hail in Oregon, June 27, 2019

Area Forecast Discussion
National Weather Service Pendleton OR
208 PM PDT Thu Jun 27 2019

.SHORT TERM...Tonight through Sunday...The upper level low pressure
system over northwest Oregon this afternoon will slowly lift to the
northeast overnight and be over northern Washington on Friday. There
will be isolated to scattered showers through this evening with
some thunderstorms possible and that will then end by around
midnight with some partial clearing. As the low lifts northeast
tomorrow most of the showers will be confined to the Washington
Cascades with a few lingering showers and thunderstorms over
northeast oregon and southeast Washington mainly during the
afternoon and evening. The low will leave behind a weak trough
pattern extending from British Columbia back into the eastern
Pacific and a new low pressure center forming off the pacific
Northwest coast on Sunday. This will leave the forecast area under a
southwest flow with some weak instability leading to a few showers
and possible thunderstorms over the eastern mountains Saturday.

.LONG TERM...Sunday night through Thursday...next week remains
pretty much what we've seen over the past week or so. Ridging over
the eastern 2/3rds of the US and ridge over central Pacific up
towards Alaska, keeping our region under a troughing pattern. This
will lead to continued west to southwesterly flow. Expect a slight
chance of showers and thunderstorms each day in the mountains while
the low elevations are likely to stay dry due to limited low-level
moisture and instability. Models in fairly good agreement through
about Tuesday with the slow eastward progression of the upper level
trough/low in our region. Beyond Tuesday, models diverge in
solutions, so leaned towards the more consistent EC/Canadian which
keep our region under more troughy pattern with a continued slight
chance of mountain showers/storms. Even with the stagnant pattern,
do expect a slight warming trend through the period with highs in
the 70s/80s and lows in the mid 40s to around 60. Onshore flow will
result in late afternoon/evening breezy winds through and downwind
of gaps through the Cascades as cross mountain thermal gradients
approach 10 degrees, with strongest winds expected on Monday.

&&

.AVIATION...00Z TAFs...Showers and thunderstorms continue through
this evening, but generally less coverage and intensity than
yesterday with most of the activity centered over the mountains. A
few showers/storms could work off the terrain into the basins,
possibly impacting taf sites. Besides gusty winds from
showers/storms, winds should generally be around 10kts or less. More
afternoon showers/storms expected over the mountains tomorrow, but
should stay away from any of the terminals.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  74  50  80 /  30  10  10  10
ALW  52  77  53  82 /  30  10  10  10
PSC  53  79  54  84 /  20  10   0   0
YKM  48  74  51  79 /  40  20  10  10
HRI  53  78  53  84 /  20  10  10   0
ELN  47  69  48  74 /  60  30  10  10
RDM  41  71  42  77 /  40  10  10  10
LGD  44  70  45  75 /  60  30  20  20
GCD  44  70  46  78 /  60  20  20  10
DLS  53  74  54  80 /  20  10  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...None.
WA...None.
&&

91/84/84

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
933 AM PDT THU JUN 27 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0518 PM     HAIL             11 NE GOLDENDALE        45.95N 120.67W
06/26/2019  E0.88 INCH       KLICKITAT          WA   CO-OP OBSERVER

            NICKEL SIZED HAIL OBSERVED AT BROOKS MEMORIAL STATE PARK.
            TIME ESTIMATED FROM RADAR.

&&

JAS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
945 AM PDT THU JUN 27 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0420 PM     HAIL             CONDON                  45.24N 120.18W
06/26/2019  E0.88 INCH       GILLIAM            OR   PUBLIC

            NICKEL SIZED HAIL OBSERVED. REPORT VIA SOCIAL MEDIA. TIME
            ESTIMATED FROM RADAR.

&&

JAS