Friday, September18, 2020
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Marine Weather and Tides
Ponderay, ID

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:28AMSunset 6:53PM Friday September 18, 2020 3:43 PM PDT (22:43 UTC) Moonrise 7:51AMMoonset 7:56PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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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7 Day Forecast for Marine Location Near Ponderay, ID
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location: 48.36, -116.55     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 182131 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 231 PM PDT Fri Sep 18 2020

SYNOPSIS. Smoke will persist across our region through Saturday morning, then anticipate improving conditions. The arrival of a cold front will bring showers and westerly winds. Not only will the front bring showers to the Inland Northwest, but it should provide essential rains to the Oregon wildfires. Drier and seasonal weather under smoke free skies is forecast for Sunday through Tuesday, then warmer and showery weather is forecast by mid week.

DISCUSSION.

Tonight through Sunday Night: The air quality has made little regionwide improvement today. However, the approaching weather system has been bringing significant improvements to coastal air quality. The change in winds and rain will assist in the removal of the smoke and poor air quality. By Sunday, we are anticipating most smoke removed. The Air Quality Alert will continue through tomorrow morning.

The incoming low is bringing a break in the high pressure & it's dry and smoky air. The bands of wetting rain have been moving across the western side of Washington and Oregon today. They are slowly making their way into the Cascades late this afternoon. Rain will be widespread tonight and further east tomorrow. With this system, we will receive much needed precipitation. From tonight into tomorrow, there will be widespread rainfall, with the chance for isolated heavy downpours. The 36 hour rain total will range anywhere from 0.02" in the Basin and up to 0.5" - 0.75" in the northern WA mountains, Cascades, and Idaho Panhandle. The much needed moisture will be helpful with some current fires. However, the numerous burn scars are going to be very sensitive to even a brief heavy downpour, which may create debris flow. There is not generous instability with this system, but there is potential for isolated thunderstorms in the Cascades tonight and northern mountain on Saturday. The Blues and far southeastern Washington has the potential for a few pop up cells with lightning overnight tonight with the heavier rainfall. There is a slight chance and we are low in confidence. Many locations are still quite dry and lightning could easily spark a fire.

Winds will be breezy tomorrow, with potential gusts up to 20-30 mph, widespread in eastern Washington. The HRRR is hinting at a gusty outflow with the arrival of the showers, but the smoke coverage could prevent this and many models are not in agreement. If so, these winds would be isolated and monitored if they are by fires. Sunday winds will be light, accompanied by remnant rain in the far eastern Panhandle.

Temperatures tomorrow and Sunday will be cooler in seasonal normals, with highs in the upper 60s and 70s. Lows cool back into the 40s Saturday and Sunday night. JS

Monday through Friday: The work week will start off on the dry side but becoming wetter by the end of the week and feeling more fall like. A southwesterly flow aloft will be over the Inland NW for Monday and Tuesday. Aside from some spotty showers near the Cascade crest on Monday, it should be a dry period through Tuesday night. Residual low level moisture will give way to patchy morning fog in the northern valleys. Temperatures will be slightly above normal with daytime highs in the 70s and lows spanning the 40s to lower 50s. Winds will be light with occasional westerly breezes in the afternoon and early evening. Meanwhile, a Pacific low will be swinging from the Gulf of AK toward the WA coast. A slow moving frontal boundary will sag across the region, reaching the Cascades Wednesday morning and then shifting across the Columbia Basin and into the northern mountains Wednesday night into Thursday night. Showers will linger into Friday with a broad upper trough over the region. The best chance for measurable rains look to be across the higher terrain, while lighter rainfall will stretch across the Basin. Temperatures will warm slightly ahead of the cold front, although by Friday temperatures cool to below normal. Southwesterly winds will increase late Wednesday and continue through Friday with higher gusts possible by Friday. A benefit of the wetter and breezier pattern should keep smoke levels limited from the region. /rfox

AVIATION. 00Z TAFS: Smoke will continue to impact TAF sites with reduced visibility and ceilings. They are expected to fluctuate between IFR and MVFR conditions through the TAF period. The incoming frontal system tonight and tomorrow will bring chances of showers at the TAF sites and will help clear out some of the smoke. There is a slight chance for lightning at KEAT and KLWS tonight from 00z to 12Z. JS

PRELIMINARY POINT TEMPS/POPS. Spokane 50 70 46 71 45 74 / 40 30 20 0 0 0 Coeur d'Alene 52 68 47 69 45 74 / 50 40 40 10 0 0 Pullman 48 67 43 70 42 73 / 60 50 10 0 0 0 Lewiston 57 74 53 76 51 79 / 60 40 10 0 0 0 Colville 47 72 41 73 39 75 / 30 50 40 10 0 10 Sandpoint 50 66 45 66 41 71 / 50 60 60 20 10 0 Kellogg 55 64 52 66 48 73 / 60 70 50 20 0 0 Moses Lake 49 76 46 76 46 75 / 30 20 0 0 0 0 Wenatchee 57 73 54 75 53 74 / 60 20 10 0 0 0 Omak 55 76 48 75 48 74 / 50 30 10 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES. ID . None. WA . None.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sandpoint, Sandpoint Airport, ID4 mi49 minS 45.00 miFair with Haze72°F48°F44%1011.8 hPa

Link to 5 minute data for KSZT

Wind History from SZT (wind in knots)
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Last 24hrNE7NE8CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW4W3W4CalmNE3CalmCalmE4SE3S5SW4
1 day agoCalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE11NE10
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2 days agoE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE5NE10NE9NE7NE5E3SE3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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
Ground Weather Radar Station Spokane, WA
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