Page Links Change Location One Page Printer Page HELP Default setup SAVE setting RECALL saved setting

Marine Weather and Tides Lake Shore, WA Version 3.4

NOTICE 3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone. 1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

---

Sunrise 5:49AM

Sunset 8:44PM

Thursday July 29, 2021 8:53 AM PDT (15:53 UTC)

Moonrise 10:48PM

Moonset 11:02AM

Illumination 72%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

---

---

7 Day Forecast for Marine Location Near Lake Shore, WA

   Hourly   EDIT   Help

---

Area Discussion for - Portland, OR

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KPQR 291049 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 345 AM PDT Thu Jul 29 2021

SYNOPSIS. Hot weather for the interior lowlands next two days with temperatures in the mid and upper 90s, with some locations in reaching 100 degrees especially on Friday. It will turn cooler for the weekend into next week but temperatures remain above normal. Increasing monsoonal moisture will bring periods of showers and potential thunderstorms primarily across the central Cascades and extending into the northern Cascades through the weekend and likely into the start of next week.

SHORT TERM. Today through Saturday . The big picture - Strong upper level high pressure central US with upper level trough over the northeast Pacific. The resulting weather for the PacNW is advection of a warm and somewhat moist airmass into the area from the south to southwest flow aloft. Today and Friday will be hottest days with some cooling for Saturday. High temperatures for the interior lowlands expected in the mid and upper 90s, but likely see temperatures around 100 on Friday, the mid 90s for Saturday. Overnight lows are expected to be on the warm side low to mid 60 tonight and Friday night. But note that the heat soaked urban areas as well as the Gorge will likely have lows around 70 Friday night. The Heat Advisory continues through Saturday. Models have changed little over the last 12 hours so feel confident in the forecast. But one thing that might affect the temperature forecast is cloud cover from expected convection next couple of days. Friday night convection may bring enough cloud cover over the valley to keep it warmer than current forecast. Though if clouds arrive earlier than expected it'll moderate high temps.

The chance of thunder increases and expands today with NAM forecast soundings suggesting 1000-1200 J/kg of CAPE along the Linn, Lane, and upto Marion Co. Cascades, where surface heating will be maximized. SPC 4-hour calibrated thunderstorm probability shows 30-40% chance right along the crest today. Satellite shows a batch of moisture moving north across central CA that'll shift into our area this afternoon, so the ingredients are coming together. Friday is currently looking to be both the hottest and most favorable day for thunderstorms for all of the Oregon Cascades. The foothills and Washington Cascades might also have a shot at seeing convection as well. Various CAM forecast reflectivity shows larger area of showers moving north along the Cascades Friday afternoon, but have backed down the south WA Cascades. /mh

LONG TERM. Saturday night through Tuesday . The GFS and CMC suggest convection will develop Saturday evening and overspread portions of the eastern Willamette Valley during the overnight period, while the ECMWF keeps everything west of the Cascade crest dry. The westward extent of any convection that forms will depend on how much of an easterly component is present in the mid to upper- level steering flow. At this time, a slight chance of thunder has been added only for the Cascades, in accordance with NBM's most recent guidance. If necessary, changes may be made to chances for convection in upcoming forecasts.

Sunday and beyond, the pattern becomes more uncertain, with some cluster solutions favoring a transition to zonal flow and others suggesting a continuation of southerly flow into early next week. One solution, comprised mostly of the CMC, suggests the low to our northwest will drop into our area to lower heights and promote cooler weather. NBM currently suggests high temperatures in the low 80s to low 90s in the Willamette Valley and 60s along the coast through the end of the period. -Bumgardner

AVIATION. Clear skies and VFR conditions prevail across the forecast area as of 1030z. Fog is developing under a shallow marine layer just off the coast. Similar to Wed morning, IFR fog/low clouds may affect KAST/KONP for a few hours around sunrise this morning. Given how shallow the marine layer is, any morning clouds should clear for VFR conditions by 17z, with breezy N winds gusting up to 25 kt expected along the coast thereafter.

VFR conditions will persist through this evening inland, though isolated showers/thunderstorms may develop this afternoon over the Cascades east of KEUG. No significant impacts are anticipated for the Willamette Valley.

For detailed regional Pac NW aviation weather information, go online to: https://weather.gov/zse

KPDX AND APPROACHES . VFR expected through the period, with light to moderate NW sfc winds. Ground crews can expect a hot afternoon with highs well into the 90s today. Weagle

MARINE. Typical summer pattern expected for the next several days. Increased heating inland on Thursday should strengthen the thermally induced low pressure over SW Oregon and NW California. There is a chance cloud cover increases Thu afternoon which could weaken the thermal trough, but most models show widespread gusts to 25 kt across the waters. Thus we maintained a Small Craft Advisory on Thu from noon through midnight for all waters, extending overnight for the outer waters. Similar diurnal northerly wind pattern is expected Friday into the weekend. Seas will remain primarily wind-driven with background swells generally remaining 3 ft or less through the weekend. Weagle/DDH

PQR WATCHES/WARNINGS/ADVISORIES. OR . Fire Weather Watch from Friday morning through Friday evening for Central Oregon Cascade Foothills-Mt. Hood National Forest West of Cascade Crest-North Oregon Cascade Foothills-Willamette National Forest.

Heat Advisory from 11 AM this morning to 11 PM PDT Saturday for Cascade Foothills in Lane County-Central Columbia River Gorge-Central Willamette Valley-Greater Portland Metro Area-Lower Columbia-Northern Oregon Cascade Foothills- South Willamette Valley-Upper Hood River Valley-Western Columbia River Gorge.

Red Flag Warning from 2 PM this afternoon to 11 PM PDT this evening for Willamette National Forest.

WA . Heat Advisory from 11 AM this morning to 11 PM PDT Saturday for Central Columbia River Gorge-Greater Vancouver Area-I-5 Corridor in Cowlitz County-South Washington Cascade Foothills-Western Columbia River Gorge.

PZ . Small Craft Advisory from noon today to 6 AM PDT Friday for coastal waters from Cape Shoalwater WA to Florence OR from 10 to 60 NM.

Small Craft Advisory from noon today to midnight PDT tonight for coastal waters from Cape Shoalwater WA to Florence OR out 10 NM.



Interact with us via social media: www.facebook.com/NWSPortland www.twitter.com/NWSPortland

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
LOPW1 - 9440422 - Longview, WA	33 mi	53 min			73°F		1018.8 hPa (+0.4)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR	61 mi	53 min			51°F		1018.8 hPa (+0.0)
ASTO3 - 9439040 - Astoria, OR	65 mi	53 min	SE 2.9 G 4.1	60°F	71°F		1018.8 hPa (+0.3)

Wind History for Longview, WA

(wind in knots)    EDIT      (on/off)   Help

Last 24hr

1 day ago

2 days ago

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Pearson Airfield, WA	6 mi	60 min	NW 4	10.00 mi	Fair	69°F	53°F	57%	1017.5 hPa
Portland, Portland International Airport, OR	9 mi	60 min	NW 3	10.00 mi	Fair	69°F	56°F	63%	1017.5 hPa
Scappoose Industrial Airpark, OR	10 mi	60 min	N 7	10.00 mi	Fair	73°F	54°F	51%	1017.3 hPa
Portland-Hillsboro Airport, OR	12 mi	60 min	SSE 3	10.00 mi	Fair	69°F	53°F	57%	1017.2 hPa
Portland, Portland-Troutdale Airport, OR	21 mi	60 min	N 0	10.00 mi	Fair	69°F	55°F	61%	1017.6 hPa

Link to 5 minute data for KVUO

Wind History from VUO (wind in knots)

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

Last 24hr

NW5

NW3

W5

W8

W8

NW6

NW7

NW8

NW7 G15

N6

N8

NW6

NW6

NW6

5

NW6

NW3

Calm

Calm

Calm

Calm

Calm

NW5

NW4

1 day ago

3

Calm

--

W8

NW6

W8

6

W8

W8

NW5

Calm

N3

NW5

5

NW4

3

3

NW3

Calm

Calm

N3

Calm

3

NW3

2 days ago

NW6

NW8

NW8

4

W8

NW9 G17

NW13 G18

NW13 G19

NW10 G18

NW12

NW9 G17

NW10

NW7

NW4

NW4

4

NW5

3

NW4

Calm

3

4

3

N3

---

Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

Tide / Current Tables for Knappa, Knappa Slough, Columbia River, Oregon

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

GEOS Local Image of PacificNorthwest    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

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

---

Ground Weather Radar Station

---

Please read website Cookie, Privacy, and Disclamers by clicking HERE.

---