Marine Weather and Tides
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 7:09AM||Sunset 4:03PM||Monday November 30, 2020 9:27 AM PST (17:27 UTC)||Moonrise 5:24PM||Moonset 8:26AM||Illumination 100%|
7 Day Forecast for Marine Location Near Moscow, IDHourly EDIT Help
Area Discussion for - Spokane, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS66 KOTX 301213 AFDOTX
Area Forecast Discussion National Weather Service Spokane WA 413 AM PST Mon Nov 30 2020
SYNOPSIS. A frontal system will bring light snow to much of the Inland Northwest today, as well as locally gusty winds to southeast Washington. Expect seasonably cool temperatures, light winds, and dry weather from Tuesday into next weekend with the return of high pressure.
DISCUSSION. Today through Tuesday: A well defined cold front over western Washington will spread precipitation east of the Cascades early this morning in Central Washington, reaching Eastern Washington and north Idaho mid to late morning. Until then patchy freezing fog has developed around Moses Lake, and in the northern valleys and Idaho Panhandle. Strong lift with the front will result in widespread precipitation except in the Columbia Basin and LC Valley where mid level westerly flow (850mb winds 30-45 kts) will result in only a chance of precipitation. Wet bulb zero heights are near or below 0C along and north of I-90 supporting mainly snow with the front while south of I-90 a mix of rain and snow is expected for the valleys with snow in the mountains. There does remain some potential for localized freezing rain south of Moses Lake where freezing fog has developed this morning, and an elevated melting layer could result in icy spots.
This is a quick moving front supporting mainly light snow amounts in the valleys (up to 2 inches). Less than 1 inch is forecast for the I-90 corridor from Moses Lake to Kellogg. The Cascade crest however will benefit from moderate snow with the front followed by post frontal showers with near advisory snow amounts of 5 to 10 inches which may cause travel impacts over Stevens Pass. Per coordination with NWS Seattle have opted to not issue any highlights at this time for the East Slopes of the Cascades given borderline advisory amounts. Behind the front breezy to locally windy conditions are forecast for the Wenatchee area, Waterville Plateau, Columbia Basin, West Plains, and Palouse with gusts 25-35 MPH.
Tonight dry conditions are expected as high pressure begins to build into the area except for a chance of lingering showers in the Idaho Panhandle in the evening. A moist boundary layer will keep stratus prevalent across the Idaho Panhandle and NE WA valleys, likely expanding into the Spokane area and West Plains Tuesday morning as freezing fog develops under light winds. Light winds and the building ridge will likely keep much of this stratus in place into Tuesday afternoon. JW
Tuesday night through Monday: High pressure will dominate the forecast area through the week, with the main forecast challenge being fog and low clouds. Computer models agree on the center of the surface high being east of us on Tuesday night and Wednesday. This will create an easterly wind which should push any fog/stratus into the Basin, away from the Panhandle. The Palouse should be sunny under this regime.
As the week progresses, the pressure gradient will relax, but still be light easterly. This should allow fog/stratus to fill back into all of the valleys in the Inland NW and continue through the weekend. This kind of forecast is always fraught with big bust potential, especially with temperatures.
By Monday, a very weak front approaches the Pac NW and falls apart as it makes landfall. Enough of it could survive to bring the threat of rain or snow to the Cascades on Monday. RJ
AVIATION. 12z TAFS: VLIFR conditions from FZFG over the northern valleys and parts of the Columbia Basin will lift this morning with incoming cold front. A quick burst of snow is expected with the front this morning along with LLWS at KGEG/KSFF/KCOE/KEAT as winds increase above the surface with the front. MVFR conditions will be most prevalent with the front passage but localized moderate snow intensity and IFR conditions are possible especially north of Spokane and Coeur d'Alene. West winds behind the front are expected to mix down for most TAF locations. This combined with drier air mixing down should allow CIGS to become VFR for all TAF sites. Overnight fog and stratus will expand around the Spokane area TAF sites but confidence is low with timing and details of precise restrictions. KLWS will benefit from downslope flow off area mountains with VFR conditions expected to persist through the TAF period. JW
PRELIMINARY POINT TEMPS/POPS. Spokane 41 27 34 19 38 21 / 90 0 0 0 0 0 Coeur d'Alene 40 29 35 24 38 24 / 90 10 0 0 0 0 Pullman 41 27 36 22 37 24 / 70 0 0 0 0 0 Lewiston 47 32 43 26 38 27 / 30 0 0 0 0 0 Colville 34 26 36 20 36 21 / 90 0 0 0 0 0 Sandpoint 35 30 35 24 36 25 / 100 10 0 0 0 0 Kellogg 37 30 35 27 40 21 / 100 60 0 0 0 0 Moses Lake 47 24 40 23 36 19 / 40 0 0 0 0 0 Wenatchee 45 27 40 27 37 26 / 60 0 0 0 0 0 Omak 36 26 37 22 32 23 / 80 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES. ID . None. WA . None.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Pullman / Moscow Regional Airport, WA||7 mi||35 min||W 10 G 17||10.00 mi||Overcast||39°F||27°F||62%||1019.4 hPa|
|Lewiston, Lewiston-Nez Perce County Airport, ID||24 mi||32 min||SE 8||10.00 mi||Overcast||37°F||26°F||65%||1019.2 hPa|
Link to 5 minute data for KPUW
Wind History from PUW (wind in knots)
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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.
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