Marine Weather and Tides
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 6:34AM||Sunset 6:44PM||Thursday September 23, 2021 8:54 PM PDT (03:54 UTC)||Moonrise 8:00PM||Moonset 9:19AM||Illumination 92%|
7 Day Forecast for Marine Location Near Troy, MTHourly EDIT Help
Area Discussion for - Spokane, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS66 KOTX 232151 AFDOTX
Area Forecast Discussion National Weather Service Spokane WA 251 PM PDT Thu Sep 23 2021
SYNOPSIS. Warm and dry fall weather is expected to last through Sunday. Afternoon temperatures in the 70s will be common through the weekend. Chances for precipitation will increase early next week with a slow moving front moving in off of the eastern Pacific. The front will also bring cooler temperatures typical of early fall.
DISCUSSION. Tonight through Saturday: Dry, mild weather is expected this period. A ridge of high pressure builds in, deflecting the deeper moisture and precipitation risk away from the region and just a few mountain cumulus and passing high clouds. A weak mid-level wave breaks into the ridge late Friday into Saturday, bringing a few more clouds and by late Saturday some low-grade breezy conditions. Temperatures are expected to warm through the period, with highs in the upper 70s to lower 80s on Saturday. This could be the mildest day in a while. /Cote'
Saturday night through Sunday: Upper level ridging shifts to the east, putting the PNW in southwest flow aloft. This will allow for multiple systems to pass through the area over the next week. First, a dying front will move across western Washington Saturday night into Sunday and get hung up at the Cascades. A resultant stronger cross-Cascade pressure gradient will bring breezy winds to the area Sunday. Winds will be strongest across the Columbia Basin into the Palouse and Spokane area with gusts up to 25 mph possible. Relative humidites will likely be above critical fire weather thresholds, but values in the low 20s will elevate concerns, especially for places that missed out on rain last weekend.
Monday through Thursday: An active weather pattern will begin Monday as a Gulf of Alaska low digs off the PNW coast. This would send a strong front across the area sometime early next week, and it looks to be more of a typical fall storm compared to the front on Sunday. There are some discrepancies among model ensembles on the timing and strength of the trough, with some ensembles suggesting the front to move through Monday, with others suggesting it to not move through until Tuesday. Right now our forecast suggests Monday to be be the last day with high temperatures in the 70s for the next week, but this could always change as time goes on. This front will also bring chances for widespread precipitation early in the week. The heaviest precipitation will be at the Cascades with confidence in rainfall amounts lessening east of the Cascades. Then, models significantly diverge on the pattern for the latter part of the work week. Some ensembles suggest the possibility of another front on the heels of the previous one to move through and bring more chances for precipitation, while others suggest the return of a ridge with dry conditions. vmt
AVIATION. 00Z TAFS: VFR conditions and mainly light and diurnal winds expected, with high pressure building in. Look for a few cumulus and some passing higher clouds. /MSC
PRELIMINARY POINT TEMPS/POPS. Spokane 46 76 49 79 52 76 / 0 0 0 0 0 0 Coeur d'Alene 45 75 49 79 51 76 / 0 0 0 0 0 0 Pullman 42 77 46 79 49 77 / 0 0 0 0 0 0 Lewiston 51 82 54 86 57 83 / 0 0 0 0 0 0 Colville 39 77 42 79 43 75 / 0 0 0 0 0 10 Sandpoint 41 71 44 75 46 72 / 0 0 0 0 0 0 Kellogg 49 75 54 78 55 74 / 0 0 0 0 0 0 Moses Lake 44 79 48 82 50 79 / 0 0 0 0 0 0 Wenatchee 54 78 57 82 58 76 / 0 0 0 0 0 10 Omak 49 80 52 83 52 75 / 0 0 0 0 0 10
OTX WATCHES/WARNINGS/ADVISORIES. ID . None. WA . None.
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|Boundary County Airport, ID||30 mi||65 min||SW 5||10.00 mi||Fair||63°F||45°F||52%||1023.4 hPa|
Link to 5 minute data for K65S
Wind History from 65S (wind in knots)
|1 day ago||Calm||NE||Calm||Calm||E||E||Calm||E||E||Calm||Calm||Calm||Calm||Calm||Calm||SW||Calm||S||Calm||S|
|2 days ago||Calm||E||SE||Calm||SE||Calm||Calm||S||SE||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SW||SW||SW||SW||Calm||Calm|
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