Thursday, July18, 2019

Marine Weather and Tides
Manson, WA

Version 3.4
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at Allen

Sunrise 5:21AMSunset 8:53PM Thursday July 18, 2019 10:12 AM PDT (17:12 UTC) Moonrise 9:15PMMoonset 5:57AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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 Manson, WA
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location: 47.88, -120.08     debug

Area Discussion for - Spokane, WA
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Fxus66 kotx 181149
area forecast discussion
national weather service spokane wa
449 am pdt Thu jul 18 2019

Breezy winds are expected again today across central and eastern
washington raising concerns for grass fires. Temperatures will
remain cooler than average through Saturday with highs in the 70s
and lows in the 40s and low 50s. Much warmer weather will arrive
early next week with widespread highs in the 90s.

Gusty winds and low rh values today to elevate fire weather

Colder morning lows Friday morning...

today through Friday night: strong upper level 130+ kt jet remains
across wa and id this morning. It will begin to sag south late
tonight and should be out of the region by Friday evening. Drier
air has moved in and the best chance for showers today will be
along the crest of the cascades and idaho panhandle. Some high
resolution models are showing a boundary setting up from the blue
mtns across the palouse and into shoshone county. So have extended
chance of precip across this area as well during the morning hours.

Forecast challenge for today will be the wind speeds and gusts.

Believe winds will be a bit stronger than yesterday. Widespread
20-25 mph across the waterville plateau into the columbia basin,
palouse and spokane area is expected. Some locally higher winds
up to 30 mph is possible around wenatchee and portions of the
waterville plateau. Gusts will be 25 to 35 with some locally
higher gusts 45 to 50 mph.

A red flag warning has been issued for portions of the waterville
plateau and columbia basin for this aftn evening. Am concerned
about the wenatchee area and palouse spokane area as well. It is
marginal, and for now will continue with a headline for these

The clear skies tonight and dry air still punching in will lead to
a very chilly morning for much of the cascades and the typically
colder valleys across northern wa and id. Any outdoor enthusiasts
in the cascade mountains can expect lows in the 30s.

Friday there could be some light showers north of the methow
valley and across extreme north id, north of bonners ferry.

Temperatures will remain cool... In the 70s for the valleys. The
winds will be much lighter... About 10-15 mph. Nisbet

Temperatures well into the 90s Monday and Tuesday...

Saturday and Sunday: the weather for the weekend looks looks dry
as the cool trough currently over our region shears east toward
the great lakes. High temperatures on Saturday will likely rebound
into the upper 70s over the idaho panhandle and palouse with low
to mid 80s over most of central and eastern washington. Sunday
will warm into the upper 80s to low 90s for the majority of the
lowland region-wide.

Monday through Wednesday: the medium range models continue to
forecast above average temperatures early next week. There is good
agreement that a highly amplified pattern will develop over north
america. By Monday, strong high pressure will be centered over
the rockies with a broad upper low off the coast of british
columbia. At this time, it looks like Monday and Tuesday will be
the hottest days of the week before the offshore low pivots
inland Tuesday night or Wednesday. We will be watching Tuesday
and Wednesday for the potential for thunderstorms. There is enough
variability in the ensemble members that the NWS blend of models
minimizes the chance for precipitation so our forecast is dry.

However, runs of the gfs, ecmwf, and the GFS ensemble mean suggest
the potential for widely scattered thunderstorms over eastern
oregon, southeast washington, and possibly the idaho panhandle.

Much could change in a day 6 7 forecast, but this type of pattern
has produced damaging thunderstorm outflow in the past as well as
abundant lightning. Afternoon temperatures in the mid to upper
90s, dewpoint depressions around 40 degrees, and 500mb winds of 40
to 50kts are worth monitoring. Gkoch

12z tafs: any showers or thunderstorms occurring regionally will
be confined to the northern cascades and the northern id
panhandle as short waves pulse around low pressure moving through
b.C. What remains also is a slight chance of a stray shower close
to kpuw-klws but confidence is low since high resolution model
guidance and Sat imagery doesn't support this forecast so
confidence remains low. What is possible is local MVFR conditions
near kpuw-klws this morning till midday. Therefore,VFR
conditions are still expected for the TAF sites through this
forecast period. Periods of sct mid and high level clouds
transiting over the region along with breezy to windy conditions
over most TAF locations with gusts ranging 25-35kts near keat-kmwh
are to be noted during this period. Aky

Preliminary point temps pops
Spokane 76 47 74 48 79 53 0 0 0 0 0 0
coeur d'alene 75 46 73 47 79 53 10 0 0 0 0 0
pullman 74 44 72 45 78 49 20 0 0 0 0 0
lewiston 83 54 80 53 86 57 10 0 0 0 0 0
colville 77 40 76 40 83 48 10 0 10 10 10 0
sandpoint 72 44 71 44 77 50 10 0 0 0 0 0
kellogg 71 49 69 49 77 54 20 0 0 0 0 0
moses lake 81 49 80 51 85 54 0 0 0 0 0 0
wenatchee 77 54 77 55 83 61 0 0 0 0 0 0
omak 80 50 78 53 84 58 0 0 0 10 0 0

Otx watches warnings advisories
Id... None.

Wa... Red flag warning from 2 pm this afternoon to 8 pm pdt this
evening for east washington northern columbia basin (zone

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wenatchee - Pangborn Memorial Airport, WA33 mi78 minWNW 12 G 1910.00 miFair65°F37°F37%1011.5 hPa

Wind History from EAT (wind in knots)
Last 24hr5SE7S64W14
1 day ago6S8SW15SW18
2 days agoSW106SW8SW12SW11SW8SW8S7W11W7W10W8W5W7--W6W66W6SW8W6W6W5SW8

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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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Wind Forecast for Spokane, WA (13,3,4,5)
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Ground Weather Radar Station Spokane, WA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.