Monday, June21, 2021
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Marine Weather and Tides
Wenatchee, 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 5:02AMSunset 9:03PM Monday June 21, 2021 12:58 AM PDT (07:58 UTC) Moonrise 4:39PMMoonset 1:47AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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 Wenatchee, WA
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location: 47.43, -120.33     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 210449 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 949 PM PDT Sun Jun 20 2021

SYNOPSIS. Temperatures will warm up for the start of the work week with highs into the 90s by Tuesday. A disturbance arrives around mid week that cools temperatures into the 80s and brings some breezy winds. Then, a very strong ridge will form over the Pacific Northwest at the end of the week delivering some of the hottest temperatures the region has seen since 2015.

DISCUSSION. Tonight through Tuesday night: A ridge of high pressure will build in up from the Four Corners region. Temperatures will warm up for the beginning of the week with widespread 90s by Tuesday. There will also be a cutoff low pressure system that will circulate off of the coast of California. Models are coming in good agreement with this low staying mostly in this position through the week. There will a shortwave disturbance that pivots around this low and moves up over the ridge across the southeast portion of the region late Tuesday. Convection will fire off over Oregon Tuesday afternoon and we will see high cirrus cover move up across the Inland Northwest as the tops of the cumulonimbus clouds shear off.

As far as any convection forming ahead of the shortwave over eastern Washington or north Idaho, it doesn't look like we will have enough instability for that to come to fruition. Surface based instability looks to remain capped Tuesday afternoon. The axis of best elevated instability looks to be from northeast Oregon to the southern portion of the Idaho Panhandle. That will be the best potential for elevated convection overnight on Tuesday.

Westerly winds will pick up Tuesday afternoon as a thermally induced trough shifts east into western Montana. Winds look to gust to between 20 to 25 mph through the Cascade gaps and out over the exposed areas of the basin. The main concern will be for the spread of any new or ongoing fires as Tuesday will be a very warm and dry day. Temperatures up into the 90s will also increase the heat risk into the moderate category. Those sensitive to heat, such as the elderly and young children, should take extra precautions to remain cool and hydrated as our temperatures warm up. /SVH

Wednesday and Thursday: The Inland Northwest will be under a flat ridge pattern Wednesday with an offshore Low just south of the OR/CA border. After the peak temperatures on Tuesday, Wednesday will see a few degrees of cooling as the ridge flattens and a shortwave feature is forecast to slide south through Alberta late Wednesday, clipping eastern Washington and northern Idaho as it continues southeast through Montana. Increased cloud cover over the eastern half of Washington may help limit daytime temperatures on Thursday, resulting in similar temperatures as Wednesday. Wednesday and Thursday should see 850mb temperatures around 22-24C, translating to surface highs around 90F. Winds across the Columbia Basin will be breezy during the afternoon periods, and paired with very dry conditions, could elevate fire concerns.

Friday, Saturday, and Sunday: By Friday, that offshore low becomes absorbed into the mean flow with the ridge strengthening off the coast of British Columbia. A Rex Block scenario sets up and ensemble model guidance continues to advertise a very warm airmass for the Pac NW region (almost a 597dm ridge). Temperatures Friday will be similar to Tuesday and will continue to warm each day through Sunday. Heat Risk will be elevated and could pose a threat for those sensitive groups. We're looking at moderate to high heat risk for Friday through Sunday. After a week of well above normal temperatures with little relief at night, even those folks that may be more seasoned to heat may see impacts from this prolonged heat.

* Record Heat is Expected Next Weekend *

Beyond Sunday, long-range ensemble model guidance is beginning to hint at how the strong ridge will break down. Right now confidence is not very high at all, given this is 7+ days out. However, these are changes we are and will be paying attention to since it may affect various interested folks. /Dewey

AVIATION. 06Z TAFS: VFR conditions under a building ridge of higher pressure. Light north-to-northeast winds tonight, turning predominantly southwesterly by Monday afternoon. /KD

PRELIMINARY POINT TEMPS/POPS. Spokane 56 91 61 94 62 91 / 0 0 0 0 0 0 Coeur d'Alene 55 89 58 91 62 88 / 0 0 0 0 0 0 Pullman 55 89 59 89 60 89 / 0 0 0 0 0 0 Lewiston 62 99 67 98 67 98 / 0 0 0 0 0 0 Colville 53 92 57 95 58 91 / 0 0 0 0 0 0 Sandpoint 52 85 54 89 58 85 / 0 0 0 0 0 0 Kellogg 57 85 62 87 63 84 / 0 0 0 0 0 0 Moses Lake 61 97 64 99 60 96 / 0 0 0 0 0 0 Wenatchee 65 96 67 95 64 93 / 0 0 0 0 0 0 Omak 60 97 62 99 62 96 / 0 0 0 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
Wenatchee - Pangborn Memorial Airport, WA7 mi64 minWNW 310.00 miFair73°F47°F40%1013.7 hPa

Link to 5 minute data for KEAT

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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.
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