Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Spokane Valley, 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 6:35AMSunset 7:13PM Sunday March 26, 2017 11:50 AM PDT (18:50 UTC) Moonrise 6:11AMMoonset 5:42PM Illumination 1% Phase: Waning Crescent; Moon at 29 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Spokane Valley, WA
   Hourly   EDIT   Help
location: 47.64, -117.19     debug


Area Discussion for - Spokane, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kotx 261732
afdotx
area forecast discussion
national weather service spokane wa
1032 am pdt Sun mar 26 2017

Synopsis
Widespread rain and mountain snow will move into the region this
afternoon and linger into Monday morning. Showery weather is
expected through Tuesday then another widespread moderate
precipitation event will arrive on Wednesday and Thursday.

Discussion
Morning update: made some adjustments to the temperatures and snow
levels with onset of the precipitation in the cascades today.

Most locations are currently in the 30s resulting in snow levels
ranging from 1200-1600 ft between the methow valley and stehekin
to 2000-2600 feet between plain and the waterville plateau. With
clouds thickening and precipitation expect to commence in the next
1-3 hours... Temperatures will have a tough time warming from the
current values given the wetbulb cooling processes that will
occur. As such, snow levels will be slower to rise and we should
see snow or mix of snow/rain in many of the cascade valleys.

Given the time of day, I don't foresee snow sticking on area
roads except possibly slushy accum on the mountain passes. A wa
dot road temperature sensor from stevens pass has already warmed
to 33f suggesting snow will likely melt as it falls unless the
intensity exceeds what the model consensus is indicating... Which
is light. Utilizing the incoming lamp guidance and current obs,
high temperatures were cooled for most locations in central wa
including wenatchee, plain, winthrop, and omak. /sb

Aviation
18z tafs: a warm front lifting into the region will spread
precipitation into central wa 18-20z and eastern taf
sites 20-22z. Wet snow may mix with rain at times at wenatchee and
may fall as wet snow for cascade valleys including plain and
winthrop with no accumulations expected. Wdsprd mtn obscrns
likely. Precip will generally remain light leading to
fluctuations between MVFR/lowVFR restrictions and have delayed
MVFR restrictions for eastern terminals until second band of
precip aft 00z. Steady precip to transition to a line of showers
after 00-07z as cold front slowly trickles through west to east.

Patchy fog and areas of stratus possible for a few hours behind
the front with any restrictions improving aft 17z Monday. /sb

Preliminary point temps/pops
Spokane 47 38 50 35 48 39 / 70 80 40 10 20 40
coeur d'alene 45 37 48 35 46 37 / 50 80 70 30 30 30
pullman 51 38 50 35 49 39 / 70 70 60 20 10 30
lewiston 53 40 55 37 54 42 / 20 80 50 20 10 10
colville 42 36 50 34 47 36 / 40 90 40 10 50 60
sandpoint 43 33 45 32 44 34 / 10 80 50 20 50 50
kellogg 45 34 45 34 44 35 / 20 90 90 40 40 40
moses lake 46 38 58 38 56 42 / 70 60 10 10 10 60
wenatchee 43 35 55 36 52 38 / 90 60 20 10 20 60
omak 44 36 54 35 50 38 / 90 90 20 0 20 60

Otx watches/warnings/advisories
Id... None.

Wa... None.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Spokane, Felts Field, WA7 mi58 minE 810.00 miMostly Cloudy49°F35°F59%1012.7 hPa
Spokane, Spokane International Airport, WA18 mi58 minENE 910.00 miMostly Cloudy44°F34°F68%1012.6 hPa
Coeur d'Alene Airport - Pappy Boyington Field, ID22 mi55 minN 810.00 miOvercast46°F35°F66%1015.1 hPa
Fairchild Air Force Base, WA24 mi53 minENE 1110.00 miOvercast43°F35°F74%1012.6 hPa

Wind History from SFF (wind in knots)
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last 24hr----W10
G18
--SW13
G22
SW12
G20
SW11
G18
S9CalmCalmNE5NE4NE5NE4NE4NE3NE3NE3NE4CalmNE3CalmCalmE8
1 day agoE5SE4S10CalmSW15
G19
------SW10SW5--Calm--Calm--CalmCalm--SW63SW7SW12SW9--
2 days agoSW83Calm4S8S5--S5CalmN4NE3NE3CalmCalmCalmSE6SW3W3E5E3E5CalmW3Calm

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Spokane, WA (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Spokane, WA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.