Friday, February22, 2019 L-36.com


Marine Weather and Tides
Athol, ID

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 6:38AMSunset 5:22PM Friday February 22, 2019 8:32 AM PST (16:32 UTC) Moonrise 10:31PMMoonset 9:37AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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 Athol, ID
   Hourly   EDIT   Help
location: 47.98, -116.56     debug


Area Discussion for - Spokane, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kotx 221218
afdotx
area forecast discussion
national weather service spokane wa
418 am pst Fri feb 22 2019

Synopsis
Another round of light to moderate snow will spread over northeast
washington and the idaho panhandle on this afternoon and into this
evening. A moist frontal system is expected to stall over oregon
and central idaho Sunday and Monday and will have the potential to
produce moderate to heavy snow as far north as the camas prairie.

No big warm up is expected in the next seven to ten days with
much below average temperatures through next week.

Discussion
Today and Saturday: fog is expected to impact the columbia basin
this morning with some areas reaching a quarter mile vis. As the
next system begins to push into the region, the fog is expected
to lessen across the region late Friday afternoon. The models are
tracking the next system with good agreement from the previous
runs and each other. It is expected to move pretty quick and bring
periods of moderate snow. Amounts have stayed around the same as
the previous forecast. Areas in the columbia basin and lower
elevations can expect up to 1 to 2 inches of new snow. The
heaviest amounts are expected in the cascades with amounts near 6
to 10 inches. The idaho panhandle mountains can expect amounts
int the range of 3 to 6 inches. By late Saturday afternoon, a few
lingering snow showers in the mountains will remain. Winds will
slightly increase ahead of the system with gusts near 20 from the
northeast. Cloud cover will help keep the temps a little warmer
overnight than the previous nights. The highs will in the 20s and
lows in the teens for most. Jdc
Sunday through Thursday: continued positioning of a
narrow ridge of high pressure off the coast keeps a cold northerly
flow over eastern washington and north idaho through the interval
hence below normal temperatures are expected to remain. Some
operational models suggest some changes to the weather pattern may
include the appearance of a quasi-stationary wet frontal feature
coupled with a deepening and intensifying area of low pressure off
the coast over the coast developing in the early portion of the
week, potentially having this frontal feature pivot around the
offshore low and move northward as a wet warm front and bring
snow to the far southeast portion of washington and portions of
the north idaho panhandle Monday before pulling away and exiting
to the southeast. Further complicating the meteorological setup
is the appearance of cold conditionally unstable air with the more
intense surges of northeast flow that along with increased
northerly northeasterly winds at the surface could bring about
higher intensity localized snow shower activity with the highest
pops over the more orographically favored areas over the far
southeast portion of washington and southern portions of the north
idaho panhandle along with what looks to possibly be more stable
airmass associated with a weakly defined col or saddle point over
the region potentially in the Tuesday night Thursday time frame
suggesting even lower pops while the higher pops remain focused
within close proximity over oregon. Pelatti

Aviation
12z tafs: . Freezing fog is impacting at kgeg and puw. This
moisture is expected to eventually push into keat by mid morning.

Easterly winds is expected to result in improving conditions at
klws and kpuw by early afternoon. A weather system will increase
snow chances Friday afternoon with moderate snow possible across
the spokane coeur d'alene corridor by the evening hours. By early
Saturday am, low stratus deck and patchy fog can lead to ifr
conditions for TAF locations as the snow system pushes out of the
region. Jdc

Preliminary point temps pops
Spokane 8 29 16 31 20 27 0 50 80 10 40 30
coeur d'alene 9 29 20 31 19 25 0 30 100 20 30 30
pullman 18 29 23 31 22 29 0 10 90 20 50 40
lewiston 20 35 29 37 28 35 0 0 70 30 40 40
colville 15 30 13 35 18 34 0 80 80 10 30 30
sandpoint 15 28 21 31 18 25 0 70 100 30 30 30
kellogg 15 29 23 31 20 25 0 30 100 60 50 40
moses lake 16 32 16 31 23 31 0 40 0 10 40 40
wenatchee 17 31 18 28 22 29 0 50 10 20 50 40
omak 19 31 16 29 21 30 0 60 20 20 30 40

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
Coeur d'Alene Airport - Pappy Boyington Field, ID20 mi36 minS 510.00 miOvercast18°F16°F92%1022.2 hPa
Sandpoint, Sandpoint Airport, ID22 mi37 minSW 410.00 mi21°F14°F74%1016.6 hPa

Wind History from COE (wind in knots)
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrNE8N12N7N8N7NE6NE6NE5N3CalmCalmS3S6W3S4SW3S7SW4S8SW5SW4CalmS4S5
1 day agoN13N13N14N13NE14N12N14N12N11N9N10NE8E4NE8NE9E4NE11N10NE10NE10N12N12N12N12
2 days ago--NE4S6S5S5SW4CalmSW3CalmW4CalmCalmCalmNE4NE4NE6NE7N8NE8NE7NE9N14N12N9

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)   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 (11,2,3,4)
      (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.