Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Oakesdale, 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 5:03AMSunset 8:27PM Thursday May 23, 2019 12:08 AM PDT (07:08 UTC) Moonrise 12:15AMMoonset 9:11AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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 Oakesdale, WA
   Hourly   EDIT   Help
location: 47.08, -117.23     debug


Area Discussion for - Spokane, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kotx 230552
afdotx
area forecast discussion
national weather service spokane wa
1052 pm pdt Wed may 22 2019

Synopsis
Temperatures will warm up the next couple of days with highs into
the 70s and low 80s. Afternoon showers and thunderstorms are
expected over the northern cascades Thursday afternoon but will
taper off in the evening. By Friday, a weather disturbance will
take up residence over western washington resulting in a good
chance of showers and afternoon thunderstorms for most of the
inland northwest. The disturbance will then drop south of the
area for the holiday weekend with a chance of showers mainly for
Saturday.

Discussion
Slow moving thunderstorms with heavy rain Friday and
Saturday...

today through Friday morning: a mostly east-northeast upper flow
continues over the eastern washington and the northern panhandle
region through at least Thursday morning. As the upper low over
the great basin and central rockies begins to push northeast into
the north central us, a more northwest upper flow will increase
across the cwa. Much of the inland northwest will remain dry for
the most part except for the the western areas of the CWA where
the possibility of a few showers and isolated thunderstorms may
develop along the northern cascades. Increased pops Thursday
afternoon along will surface CAPE ranging 800-1200 j kg will
increase the chances isolated thunderstorms over the area.

Individual cells will be slow moving along the crest and
contribute to localized, but brief rainfall. Confidence is low as
to any widespread flooding concerns in the cascades Thursday
afternoon. By Friday morning, the region will begin to come under
the influence of a deepening upper low over southern bc dropping
southeast into north-central washington. Highs over the CWA will
range in the mid to high 70s across eastern washington and the
northern panhandle with parts of the columbia basin topping out
in the low 80s. Aky
Friday through Sunday night: an upper level low pressure system
will drop down out of bc over the region on Friday. Models are in
good agreement with a closed low forming over the north cascades
by Friday afternoon. There will be very little flow over the
region, but positive vorticity advection at upper levels will
produce a modest amount of synoptic scale lift across eastern wa
and the northern id panhandle. Ample moisture will be drawn up
into the region ahead of the low with p-wats of near 0.80 inches
and surface dew points increasing into the upper 40s to lower
50s. The moisture content will be slightly less than the
environment that thunderstorms developed in last Thursday, but at
least comparable. Where the atmosphere will be noticeably
different is in the instability. There will be more cloud cover at
the start of the day compared to what was observed last Thursday.

This will result in cooler afternoon temperatures and weaker
capes as a result. Surface based CAPE values will peak on the
order of 500-1000 j kg, and most areas will probably be on the
lower end of that range. The main uncertainty will be how much in
way of Sun breaks will we see, which is tough to really tell at
this point. These will be the spots that see the best potential to
destabilize and see afternoon convection. Thunderstorms are not
expected to be as strong as those that developed last Thursday
because of the lower CAPE values. As a result, rain rates will not
be as intense, but are still expected to contain cores of very
heavy rainfall. Storms will also be slower moving and the slow
storm motion will be a problematic factor to consider when
watching for the potential of flash flooding, especially in
steeper terrain and more so over areas with recent burn scars.

Flash flooding risk will be highest for these burn scar locations,
but is not restricted only to these areas.

Thunderstorms will also be possible Saturday and again Sunday.

Main threat for thunderstorms on Saturday will be over the
northern mountains and over the higher terrain the panhandle. The
extent of thunderstorm coverage should be less on Saturday. They
will still contain cores of very rain though, but there is more
uncertainty with movement as some guidance indicates potential for
faster storm motions and others have weak steering flow aloft. So,
uncertainty in the details for Saturday is higher.

The upper level low will begin to pull away to the south on Sunday
with higher pressure building in. Best chances for showers and
thunderstorms will be over extreme southeast wa and into the
southern id panhandle. Svh
Monday through Wednesday: there is good agreement between the
medium range models that showers will decreasing Monday into
Tuesday as our weekend trough drifts across the great basin into
the central rockies. The GFS and ECMWF forecast enough residual
instability Monday afternoon for the mention of scattered showers
and embedded thunderstorms over the cascades as well as the
southern idaho panhandle and southeast washington. Elsewhere, the
memorial day holiday should end on a pleasant note with dry
weather, afternoon temperatures mainly in the 70s, and north winds
in the 5 to 15 mph range. Low chances for showers remain in the
forecast for the mountains of the idaho panhandle Tuesday and
Wednesday, but if any rain does fall it should be light in the
absence of any significant synoptic scale feature to act as a
lifting mechanism. Afternoon temperatures will be in the mid 70s
to low 80s... About 5 to 8 degrees above average as we round out
the month of may. Gkoch

Aviation
06z tafs: partial clearing is expected for TAF locations.

Thursday aft 19z CU will pop across the region. Showers
and thunderstorms will be possible for the cascades, but
only have mention of vcsh for eat attm.

Preliminary point temps pops
Spokane 47 76 50 65 44 64 0 0 10 60 40 30
coeur d'alene 46 76 49 64 44 66 0 0 0 70 30 30
pullman 45 73 47 65 42 62 0 0 0 50 30 40
lewiston 50 78 55 73 49 69 0 0 0 60 30 40
colville 40 79 42 66 40 66 0 0 10 70 40 40
sandpoint 45 74 48 63 46 65 0 0 10 70 40 40
kellogg 47 72 50 63 47 63 0 0 0 70 30 40
moses lake 51 83 53 75 47 71 0 0 10 40 30 20
wenatchee 55 80 57 72 51 68 0 10 0 40 30 40
omak 52 80 53 68 50 69 0 10 10 70 40 50

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
Pullman / Moscow Regional Airport, WA23 mi76 minNE 810.00 miFair57°F34°F42%1015.6 hPa

Wind History from PUW (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
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
Last 24hrCalmCalmCalmCalmN4CalmCalmN10NE8E13
G21
E17
G25
E19
G24
E15E17
G25
E19
G28
E21
G27
E18
G25
E13
G23
E17
G24
NE7NE7NE6NE8NE6
1 day agoW12W8W4W54NW4W9W9W7NW8W8W7W10W9W9W9W8W7W8NW63NW3CalmCalm
2 days agoNE8NE4CalmCalmCalmCalmCalmE7SE6CalmCalmN4Calm3N4N5W3NE6E5N7NE6NE5NE3Calm

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Spokane, WA (3,6,7,8)
      (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.