Sunrise 6:04 AM   Sunset 8:21 PM Moonrise 10:59 PM   Moonset 6:11 AM

  Print   HELP   Reset   Save   Recall

PZZ210 Columbia River Bar- 220 Am Pdt Fri Apr 26 2024
.small craft advisory in effect through Saturday afternoon - .
In the main channel -
General seas - 5 to 7 ft through Saturday morning.
First ebb - Strong ebb current of 5.74 kt at 634 am Friday. Seas 7 ft.
SEcond ebb - Ebb current of 3.01 kt at 702 pm Friday. Seas 7 ft.
Third ebb - Strong ebb current of 5.66 kt at 709 am Saturday. Seas 6 to 7 ft.

PZZ200 220 Am Pdt Fri Apr 26 2024
Synopsis for the southern washington and northern oregon coast - Elevated seas persist through today, resulting in steep and choppy seas at times. The next system arrives on Saturday and will bring elevated winds and maintain elevated seas through the weekend.

FXUS66 KPQR 261745 AFDPQR

Area Forecast Discussion...Updated Aviation National Weather Service Portland OR 1044 AM PDT Fri Apr 26 2024

SYNOPSIS
Showery and unsettled conditions continue through the weekend and into next week as the Pacific Northwest remains under the influence of a rather progressive spring-time weather pattern. Beyond the more persistent chances for rainfall going forward snow levels are expected to hold near 4500ft today, with light accumulations expected. Still challenging to see next week, as 8-ball is rather hazy. But, could see a dry day for Wed before more precipitation returns afterwards.

SHORT TERM
(Today through Sunday)...Upper trough will push inland today. This will maintain plenty of clouds and coolish temperatures.
As 2 am, NOAA satellite imagery showing two lows, one near North Bend and the other off the north Washington coast. The low near the south Oregon coast will push inland, and maintain showers over the region this am. The other low will slowly drop southeast and shift inland just south of Astoria. This will act to reinvigorate the showers this afternoon into this evening. Overall, not as much rain today as that seen on Thursday. Generally, will see 0.25 to 0.75 inch along the coast (heaviest over the Coast Range/Willapa Hills), as well as most of the Cascades. Bit less across the interior lowlands, with 0.10 to 0.25 in expected.

As for the Cascades, snow levels have been lowering slowly this am.
As of 3 am, temperatures in the Cascades suggest snow level has lowered to near 5000 ft, as was 33 to 34 deg at Santiam Pass and Willamette Pass. As day progresses, snow level lower a bit more, sitting at 4500 to 5000 ft. So, will maintain current winter weather advisory for light snow above 4500 ft, with 1 to 4 inches expected, though may get local amounts up to 8 inches on higher peaks/ridges.

Showers gradually decreasing later tonight, as the air mass begins to stabilize in response to weak ridging offshore shifting inland. This main due to another fast approaching front, which will push inland Sat afternoon. This front will bring a band of rain to the region later Sat am into the afternoon. Front moves onshore by late afternoon, and pushes quickly to the Cascades by early evening. With somewhat fast movement of this front, overall rainfall amounts will not be all that much, with 0.10 to 0.25 inch, with heaviest along the coast. As usual, bit higher amounts over the higher terrain, with 0.25 to 0.50 inch in spots of the Coast Range/Willapa Hills and Cascades as far south as Mt Hood area.

Cooler showery pattern resumes for Sat night into Sun, though does appear showers will be decreasing in coverage Sun afternoon. Snow levels holding at 4500 to 5000 ft. /Rockey

LONG TERM
(Sunday night through Thursday)...Through Tue, confidence is high the pattern stays rather progressive, with steady westerly flow off the Pacific into the Pacific NW. Another front will push across the region Sun night. Then, cool with showers for Mon through Tue. Snow levels lower a tad, running 3000 to 4000 ft.

Few showers linger around region on Wed, but think most of the day will end up being mostly dry for the inland valleys, as a weak transient ridge glides over the region. But, models show another potent front pushing inland late Wed night into Thu. But, models and the magic 8-ball show continue lower confidence in overall pattern for later next week. ECMWF continues to show cool upper trough shifting off the Pac into the Pac NW, with lots of showers for region. But, if the GFS wins out, will have more southwest flow aloft, with upper trough/low over the Gulf of Alaska shifting into western BC. In this situation, would be drier and more mild for our area. Hmm, will not make much in way of change at the moment, but suspect GFS may end up being the way to go. /Rockey

AVIATION
Showers continue through Friday as an upper level trough slides west to east across the region through the TAF period. This will result in mountain obscuration through the TAF period, and inland locations will see a mixture of VFR and MVFR conditions through the TAF period. For coastal locations expect generally IFR or MVFR conditions, with KONP in particular seeing extended IFR conditions as the heaviest moisture is aimed right overhead. Southerly winds along the coast with gusts up to 25 kt through around 00Z Saturday. Afterwards, expect winds to become more west/northwest with gusts up to 20 kt. Persistent southerly winds with gusts up to 15 kt for inland locations.

Notes: The ASOS at KTTD is only available via the dial in option.
The AWOS at KMMV is still out of commission. There is no estimated time of repair.

PDX AND APPROACHES...A mixture of VFR and MVFR conditions with passing showers through the TAF period. Cigs between 1500-3500 along with intermittent showers. SSW winds with gusts up to 15 kt. /JLiu

MARINE
Post-frontal conditions persist resulting in steep and choppy seas. Southerly winds will continue through the afternoon.
Afterwards, winds will become more northwesterly, but this will be somewhat short lived as the next system is expected to arrive Friday night/Saturday morning bringing a return of southerly winds. Therefore, have extended the current suite of Small Craft Advisories out through Saturday morning. These conditions will likely persist through Saturday night, but timing and exact strength is still in flux. The Small Craft Advisory for Friday will primarily be for steep and choppy seas around 7 to 10 ft at 8 to 10 seconds. As southerly winds return on Saturday expect gusts up to 30 kt. The latest NBM has decreased confidence in gales, only around 10% on Saturday. /42

PQR WATCHES/WARNINGS/ADVISORIES

OR...Winter Weather Advisory until midnight PDT tonight for ORZ127- 128.

WA...None.
PZ...Small Craft Advisory until 5 PM PDT Saturday for PZZ210-251>253- 271>273.

toggle option: (graph/table)

Chinook, Baker Bay, Washington, Tide feet

Columbia River entrance (N. Jetty)
Click for Map
Fri -- 02:09 AM PDT     7.78 feet High Tide
Fri -- 06:09 AM PDT     Sunrise
Fri -- 07:12 AM PDT     Moonset
Fri -- 09:01 AM PDT     -0.51 feet Low Tide
Fri -- 03:50 PM PDT     5.77 feet High Tide
Fri -- 08:19 PM PDT     Sunset
Fri -- 08:41 PM PDT     3.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Columbia River entrance (N. Jetty), Washington, Tide feet

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Portland, OR,