Thursday, August13, 2020
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Marine Weather and Tides
Vancouver, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:08AMSunset 8:22PM Thursday August 13, 2020 6:22 PM PDT (01:22 UTC) Moonrise 12:00AMMoonset 3:20PM Illumination 24% Phase: Waning Crescent; Moon at 25 days in cycle
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.
Marine Forecasts
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PZZ210 Columbia River Bar- 235 Pm Pdt Thu Aug 13 2020
In the main channel.. - general seas...2 to 3 ft through Saturday. - first ebb...around 130 am Friday. Seas near 5 ft. - second ebb...around 2 pm Friday. Seas near 4 ft. - third ebb...around 230 am Saturday. Seas near 5 ft.
PZZ200 235 Pm Pdt Thu Aug 13 2020
Synopsis for the southern washington and northern oregon coast.. High pressure continues over the waters with thermal low pressure over the south oregon coast. This will keep northerly winds going through Saturday. Winds become southerly on Sunday as a weak disturbance lifts north across the waters. Northerly winds look to return by next Tuesday.


7 Day Forecast for Marine Location Near Vancouver, WA
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location: 45.6, -122.62     debug


Area Discussion for - Portland, OR
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FXUS66 KPQR 132156 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 255 PM PDT Thu Aug 13 2020

SYNOPSIS. Warm trend starts in earnest on Friday, as high pressure over the Great Basin builds into the Pac NW. WIll see rather hot and dry weather for Saturday and Sunday, especially inland. Still warm next week, but will gradually cool back to the 60s on the coast and 80s inland.

SHORT TERM. Tonight through Sunday . Enjoy this pleasant evening, as next several will be on the warmer side. Still have light northwesterly onshore flow tonight will maintain somewhat cooler air mass over the region. Still have rather dry air mass, as evident with afternoon dew point temperatures in the lower to middle 40s. So, should see temperatures should drop back to the lower 50s overnight, with a few spots into the 40s.

But, high pressure over the southwestern USA will back into the Great Basin, with warming trend for our area. Not too bad on Friday, with temperatures back into the 80s for much of the interior. But, the thermal low on the south Oregon coast, aka the ORCA low, will build northward along the coast during the day. This will tighten the north to south pressure gradients over western Oregon, resulting in breezy north winds for Friday afternoon and evening. Gusts 20 to 25 mph likely for parts of the Willamette Valley and nearby terrain, as well as the Oregon coastal strip.

Much warmer conditions expected for Saturday. Building heights and light offshore flow will boost temperatures well 70s and 80s along the coast. Could see a few spots along the coast valleys reaching near 90 deg. But, will be very warm inland, with highs in the middle to upper 90s, with a few spots 100 to 102 deg. Model 850 mb temperatures, for the most part, still +22 to +26 deg C, which would support this idea. Warm weather continues on Sunday, though will see bit of relief along the coast as get bit of shallow onshore flow for that area. But, still warm inland. This due to the thermal through, or the elongated ORCA low, shifting inland and sitting over the Willamette Valley for Sunday. So, with all the heat expected, and warm night expected Saturday night, will issue a mix of heat warnings and advisories . Excessive Heat Warning for the Willamette Valley, Clark County, Columbia Gorge and Hood River Valley and Cascades Foothills below 2500 feet for Saturday afternoon through Sunday evening, and a Heat Advisory for the Coast Range, Cots Valley and Cascades below 2500 feet for same time frame.

Interestingly, some potential for smoke from the Mosier fire to drift westward Sat and Sat night, affecting areas in the Hood River Valley, western Columbia Gorge, and parts of the eastern Portland metro area. But, this will depend on status of the fire by that timeframe. For now, will put patchy smoke in forecast. /Rockey

LONG TERM. Sunday night through Thursday . Upper flow is southerly Sunday night into early Monday. Models still showing some weak instability drifting northward Sunday night, though best instability is east of the Cascades. But, even so, can not rule out a thunderstorm over the Cascades Sunday night. Will keep 20 pct PoPs for such in the forecast. But, air mass is quite dry, and would not be surprised if just end up just seeing some mid-level clouds with a few virga over the Cascades at that time.

Weak surface high will build along the coast Sunday night and Monday, giving some light onshore flow to the lower elevations. but, looks like this will be a rather shallow marine layer, with only a slight relief for inland areas on Monday. Will trend high temperatures back to the 60s and 70s along the coast, but lower 90s still a good bet farther inland. At least trend is starting, and will see slow cool down through rest of next week, with highs generally in the 80s inland, and 60s on the coast. /Rockey.

FIRE WEATHER. The breezy north to northeast winds in parts of the region, combined with low humidity, will join forces to boost potential of fire spread on Friday afternoon and evening. Highest potential will be in the Willamette Valley and nearby areas of the east slopes of the Coast Range from about McMinnville southward. Good bet will see winds gusting 20 to 30 mph along with afternoon humidity down to 18 to 25 percent in those areas. As such, will upgrade Fire Weather Watch to a Red Flag Warning for those areas. Rest of the region will be dry and locally breezy, but think not as windy. Even so, finer fuels could carry a loose fire.

Though northerly winds ease Friday night, will maintain very warm and dry air mass for Saturday and Sunday. The elongated ORCA low, aka the thermal low of southwest Oregon, will sit over the Coast Range on Saturday and Saturday night, then slowly shift eastward on Sunday, before reestablishing itself east of the Cascades on Monday. Models continue to highlight enhanced instability with high haines air. So, have posted a Red Flag Warning for dry and unstable conditions over the Coast Range and Willapa Hills on Saturday, and essential I5 Corridor and Willamette Valley eastward for both Saturday and Sunday. Main concern with dry and unstable conditions is that with dry fuels, the air mass will be supportive for any existing or new fire to becoming plume dominated. /Rockey

AVIATION. VFR the next 24 hours with dry stable flow aloft keeping skies mostly clear. Gusty northwest to northerly winds to 20 kt continue through midnight.

KPDX and APPROACHES . VFR the next 24 hours with mostly clear skies. Gusty northwesterly winds to 20 kt possible through 04Z. /64

MARINE. High pressure continues over the waters with thermal low pressure over the south Oregon coast. This will keep our northerly winds going through Saturday, with periods of gusty winds likely. Expect isolated gusts to around 25 kt for areas south of Cape Perpetua through tonight. Gusty winds look to spread north on Friday as the pressure gradients strengthen, with widespread advisory gusts around 25-30 kt likely through Saturday. Winds look to relax below advisory criteria late Saturday then become southerly on Sunday as a weak system lifts north across the waters. Northerly winds look to return by next Tuesday.

Seas are currently around 4-5 ft this afternoon and will remain in this range through tonight. Seas will build to around 5-7 ft on Friday and Saturday and become steep at times as the winds increase. Otherwise, expect seas to remain in the 4-6 ft range through next week. /64

PQR WATCHES/WARNINGS/ADVISORIES. OR . Excessive Heat Warning from noon Saturday to 9 PM PDT Sunday for Cascade Foothills in Lane County-Central Columbia River Gorge-Central Willamette Valley-Greater Portland Metro Area-Northern Oregon Cascade Foothills-South Willamette Valley-Upper Hood River Valley-Western Columbia River Gorge.

Red Flag Warning from 11 AM Saturday to 11 PM PDT Sunday for Central Oregon Cascade Foothills-Mt. Hood National Forest West of Cascade Crest-North Oregon Cascade Foothills- Willamette National Forest-Willamette Valley.

Red Flag Warning from 11 AM to 11 PM PDT Friday for East Slopes of the Central Oregon Coast Range-Willamette Valley.

Heat Advisory from noon Saturday to 9 PM PDT Sunday for Cascades in Lane County-Central Coast Range of Western Oregon-Coast Range of Northwest Oregon-Lower Columbia- Northern Oregon Cascades.

Red Flag Warning from 11 AM to 11 PM PDT Saturday for Central Oregon Coast-East Slopes of the Central Oregon Coast Range- North Oregon Coast-North Oregon Coast Range.

WA . Excessive Heat Warning from noon Saturday to 9 PM PDT Sunday for Central Columbia River Gorge-Greater Vancouver Area- Western Columbia River Gorge.

Red Flag Warning from 11 AM Saturday to 11 PM PDT Sunday for Clark County Lowlands-Eastern Gifford Pinchot National Forest Mt Adams Ranger District-Extreme South Washington Cascades and Foothills.

Heat Advisory from noon Saturday to 9 PM PDT Sunday for I-5 Corridor in Cowlitz County-South Washington Cascade Foothills-South Washington Cascades.

Red Flag Warning from 11 AM to 11 PM PDT Saturday for East Willapa Hills-South Washington Coast and West Willapa Hills.

PZ . Small Craft Advisory from noon Friday to 9 PM PDT Saturday for Waters from Cape Shoalwater WA to Cascade Head OR from 10 to 60 NM.

Small Craft Advisory from 9 AM Friday to 7 PM PDT Saturday for Waters from Cascade Head to Florence OR from 10 to 60 NM.

Small Craft Advisory from noon Friday to noon PDT Saturday for coastal waters from Cape Shoalwater WA to Florence OR out 10 NM.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 39 mi53 min 70°F1020.3 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 69 mi53 min 51°F1021.4 hPa
ASTO3 - 9439040 - Astoria, OR 74 mi53 min WNW 6 G 12 66°F 68°F1022 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Airport, OR1 mi30 minWNW 910.00 miA Few Clouds78°F39°F25%1019.5 hPa
Pearson Airfield, WA3 mi30 minNW 610.00 miFair78°F37°F24%1019.4 hPa
Portland, Portland-Troutdale Airport, OR12 mi30 minVar 310.00 miFair78°F39°F26%1019.3 hPa
Scappoose Industrial Airpark, OR17 mi30 minNNW 710.00 miFair78°F42°F28%1019.3 hPa
Portland-Hillsboro Airport, OR18 mi30 minVar 410.00 miFair78°F44°F30%1019.3 hPa

Link to 5 minute data for KPDX

Wind History from PDX (wind in knots)
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Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)
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Vancouver
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Thu -- 12:44 AM PDT     Moonrise
Thu -- 02:27 AM PDT     1.63 feet High Tide
Thu -- 06:09 AM PDT     Sunrise
Thu -- 06:54 AM PDT     0.67 feet Low Tide
Thu -- 07:38 AM PDT     0.68 feet High Tide
Thu -- 11:21 AM PDT     0.08 feet Low Tide
Thu -- 03:26 PM PDT     1.04 feet High Tide
Thu -- 04:20 PM PDT     Moonset
Thu -- 06:18 PM PDT     0.72 feet Low Tide
Thu -- 08:20 PM PDT     Sunset
Thu -- 08:50 PM PDT     0.94 feet High Tide
Thu -- 11:22 PM PDT     0.68 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.31.61.61.310.70.70.70.60.30.10.10.40.8110.80.70.80.90.90.80.7

Tide / Current Tables for Tillamook, Hoquarten Slough, Oregon
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Tillamook
Click for Map
Thu -- 12:50 AM PDT     Moonrise
Thu -- 05:21 AM PDT     0.71 feet Low Tide
Thu -- 06:14 AM PDT     Sunrise
Thu -- 10:39 AM PDT     4.13 feet High Tide
Thu -- 04:24 PM PDT     Moonset
Thu -- 04:26 PM PDT     1.99 feet Low Tide
Thu -- 08:24 PM PDT     Sunset
Thu -- 09:26 PM PDT     5.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.13.22.31.510.70.81.52.53.544.13.83.42.82.322.12.73.95.15.85.95.5

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (21,6,7,8)
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Ground Weather Radar Station Portland, OR
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