Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
Manson, WA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:43AMSunset 7:28PM Tuesday March 28, 2017 8:51 AM PDT (15:51 UTC) Moonrise 6:24AMMoonset 7:24PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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 281127
afdotx
area forecast discussion
national weather service spokane wa
427 am pdt Tue mar 28 2017

Synopsis
Rain and mountain snow shower chances return this morning and will
spread south through the day, with light amounts this afternoon.

This comes ahead of another round of widespread moderate
precipitation that will arrive Tuesday night and last until early
Thursday. Friday will bring a dry break period before more
unsettled weather for next weekend.

Discussion
Today and tonight... A few orographically forced showers linger in
the panhandle mountains this morning with scattered low level
clouds relegated mainly to idaho. Most of eastern washington saw
clearing skies overnight which allowed most to cool into the low
to mid 30s. Given the moist bl, light winds, and clear skies, some
fog is possible in the northern valleys early this morning. Ir
satellite currently shows high clouds streaming in from the
northwest, slowly advancing toward the wa/id border by mid to late
morning. Cloud cover will continue to be on the increase through
the day in advance of our next wet system later today into
Wednesday.

Light isentropically forced rain and mountain snow will overspread
the region today enhanced by a mid level warm front moving in from
the southwest. This precip will spread southward through the day
ahead of the main event Tuesday night into Wednesday. Overall
amounts will be light for Tuesday's rain with most only seeing a
couple hundredths if that, especially in the basin. This system
does has an ample fetch of moisture that moves in by Wednesday
morning with pwats around a quarter inch entering the southern
zones. /bwilliam
Wednesday through Thursday night: a warm front will spread into
the area Wednesday followed by a cold front Wednesday night into
Thursday morning. Then Thursday the trough moves through the
western us. The atmospheric river will punch inland with
widespread rain expected. Have kept our chance of precipitation
for Wed near 100%. The latest models are showing a heavier band of
rain and mountain snow continuing across portions of southeast wa
and the southern id panhandle Wednesday night and Thursday. Have
adjust the amount of precipitation expected across the region wed
through thur. The central wa valleys should see a tenth to a
quarter of an inch. Then as you head east the amounts will
increase. NE wa and N id will see 0.40-0.60. Then as you head
south into SE wa and the southern id panhandle they could see
0.75-1.00 of liquid as the rain will persist at times through
Thursday. Confidence is increasing for spokane to climb to the 2nd
wettest march spot on the climate records. Thursday night the
ridge starts to nose into the region with dry northerly flow aloft
moving in from the west. The chance of precip will continue in
the evening across portions of the id panhandle and SE wa. Given
the recent
*small streams and creeks will respond to the rainfall and rise
through Friday across extreme eastern wa and north id. Ponding of
water over roadways and fields is quite possible as well. Cannot
rule out the continued problems of debris flows, rock slides and
wash outs as the ground remains saturated from all the rain.

Friday through Tuesday: an upper level ridge builds with dry
northerly flow moving into the region on Friday, for finally a dry
day. Then Friday night into Saturday the flow turns more westerly.

Models are in terrible agreement Saturday through Monday. They all
differ on timing, strength and track of a trough that moves across
the western us. Have trended the chance of precip towards
climatology. Basically have the best chance of showers in the
mountains, and the smallest chance of precip in the wenatchee
valley into the columbia basin. Oddly enough, the models agree on
a possible ridge for early Tuesday, but am not holding out hope
that they will persist on this agreement. Temperatures will be
right at average for this time of the year... Valley temps in the
50s for highs and 30s for lows. /nisbet

Aviation
12z tafs: a weak weather system will move across the area this
afternoon for a little light rain or sprinkles at the TAF sites.

Some MVFR or ifr stratus is possible at kgeg/ksff/kcoe this
morning, but opted to go withVFR skies in the tafs. If any low
ceiling does form this morning it should be short lived.

Widespread rain with MVFR conditions will move into the region
around midnight tonight. Rj

Preliminary point temps/pops
Spokane 49 40 52 41 52 35 / 40 80 100 80 40 0
coeur d'alene 47 37 49 40 51 35 / 60 80 100 80 50 10
pullman 49 40 52 42 50 36 / 20 50 100 90 70 20
lewiston 55 42 56 44 54 38 / 10 40 80 80 70 10
colville 48 37 48 38 52 33 / 80 90 100 50 20 0
sandpoint 46 34 47 36 50 33 / 80 90 100 80 40 0
kellogg 44 35 46 37 46 35 / 50 70 100 90 80 30
moses lake 57 43 59 41 59 35 / 30 70 100 20 10 0
wenatchee 53 39 54 39 56 35 / 40 80 90 20 10 0
omak 51 39 52 37 56 34 / 60 80 100 20 10 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, WA33 mi56 minN 010.00 miOvercast42°F35°F76%1022.5 hPa

Wind History from EAT (wind in knots)
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Last 24hrW8W3W6W44CalmSW15
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1 day agoCalmCalm3S4CalmS4CalmSE8SE7CalmNW3W4CalmW3CalmCalmCalmCalmNW7CalmW3N5NW5NW6
2 days agoCalmCalmS4NW5NW17W19
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NW11W10NW5NW9NW10NW8N6NW7NW5N5NW4W4W3NE4N4CalmCalm

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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Weather Map
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IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Spokane, WA (11,2,3,4)
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Ground Weather Radar Station Spokane, WA
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Disclaimer:
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 L-36.com. 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 L-36.com 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.