Monday, March18, 2019

Marine Weather and Tides
Wenatchee, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:06AMSunset 7:12PM Monday March 18, 2019 9:07 AM PDT (16:07 UTC) Moonrise 3:18PMMoonset 5:13AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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 181153
area forecast discussion
national weather service spokane wa
453 am pdt Mon mar 18 2019

Dry and mild conditions are expected through at least Thursday
with clear skies. Wednesday should be the warmest day with highs
in the upper 50s to mid 60s with subtle cooling on Thursday. High
pressure will break down late Friday with a chance of precipitation
next weekend.

Today through Wednesday night... The dry and warming will continue
in earnest this period as strong omega block ridge becomes
increasingly pronounced over the inland northwest. For today the
models are in good agreement the center of the ridge will slide
eastward and become centered over southern bc. 850 mb temperatures
respond with a couple degrees of warming compared to yesterday
which will equate to warming all locations in the region. This
means most of not all valleys will see afternoon temperatures in
the 50s. If we do indeed get above 50 at the spokane airport this
will mark the first time above that value since november 4 or 134
days ago. The ridge is then expected to continue its slow eastward
drift, taking up residence over western montana. This will place
our region under increasing south-southeast flow with continued
warming at 850 mbs. Wednesday should be the mildest day of this
period with highs likely surging into the upper 50s to mid 60s.

These warming temperatures will continue to make a significant
dent in the area snow pack. By mid-week the snow pack across the
columbia basin and western palouse will likely be non-existent
while we continue to slowly peck away at the deep snow pack
elsewhere. The good news is nighttime lows will generally be at or
below freezing so that will prevent things from melting off too
quickly which would result in flooding issues. As it stands, about
all we would expect to see for now is increasing ponding of water
in low-lying fields. Mainstem rivers won’t respond too much yet
but some of the smaller rivers and creeks should begin to see
rises over the next few days. Fx
Thursday and Friday: a strong upper-level ridge will lose its grasp
over the northern rockies and drift into the the great plains
during this period as several pieces of energy approach from the
ern pac. The main energy from these waves will be directed well
south of the inland NW continuing to deliver mild temperatures and
dry weather. Afternoon highs look to remain in the 50s to low 60s
and overnight lows will become increasingly warmer... Struggling
to cool below freezing. This will continue to enhance snow melt
but at slow rates given the lack of winds or precipitation.

Friday night through Sunday: a slightly stronger shortwave passes through
the region Friday night into Saturday bringing the best chance
for rain and high mountain snow. This will be a mild system with
rain the dominant precipitation type for most locations of
5000-6000 feet and lower. The system looks to take on a negative
tilt which will slow it down while tracking through. Most
locations should receive less than a quarter of an inch of
rainfall with this system however a few of the mountains will
stand a chance for locally higher amounts. This includes the blue
mountains and camas prairie and possibly around the north cascades
and okanogan highlands. There is still moderate spread in the
models where these heavier pockets of precipitation will occur but
the ECMWF has trend wetter in the last 24 hours while the GFS has
come down some. The combination of the incoming rain potential
and mild temperatures will result in more snow melt runoff which
will contribute to ongoing field flooding and rises of streams and
creeks. This does not look like a wet or warm enough system to
bring significant impacts but minor nuisance ponding of water in
poor drainage areas is a strong possibility. The air mass will
cool by Sunday and Monday reducing any contribution of runoff from
mid and upper slopes and once again slow down melting of lowland
snow. Sb

12z tafs:VFR conditions with clear skies and light winds the
next 24 hours. Patchy ground fog may develop around sunrise this
morning near large water sources, but is unlikely to impact
terminals. Aky

Preliminary point temps pops
Spokane 53 29 58 31 61 32 0 0 0 0 0 0
coeur d'alene 54 30 56 32 60 33 0 0 0 0 0 0
pullman 52 31 56 32 58 31 0 0 0 0 0 0
lewiston 57 33 59 35 61 37 0 0 0 0 0 0
colville 57 28 61 30 64 32 0 0 0 0 0 0
sandpoint 52 32 56 34 60 35 0 0 0 0 0 0
kellogg 54 31 56 33 60 34 0 0 0 0 0 0
moses lake 54 30 61 32 64 34 0 0 0 0 0 0
wenatchee 51 33 54 33 56 34 0 0 0 0 0 0
omak 54 33 57 35 61 35 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 mi73 minN 410.00 miFair32°F26°F79%1029.2 hPa

Wind History from EAT (wind in knots)
Last 24hrNW4CalmCalmCalmCalmCalmCalmSE3CalmE5E5CalmNW3NW4W7NW6NW7NW5N4NW3W4CalmN4W4
1 day agoW4NW3CalmCalmCalmCalmCalmCalmSE3NE4NE4E3E3CalmCalmW3NW4NW5NW4CalmCalmNW5N3SW3
2 days agoCalmCalmSE4E5E4SE6SE7SE4SE5E5E4NE3NE3CalmNW3W4NW4W3N3CalmNW4N4NW4NW3

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 (12,3,4,5)
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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.