Marine Weather and Tides
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 5:35AM||Sunset 8:15PM||Friday May 24, 2019 1:53 AM PDT (08:53 UTC)||Moonrise 12:42AM||Moonset 10:42AM||Illumination 72%|
7 Day Forecast for Marine Location Near Spanish Springs, NVHourly EDIT Help
Area Discussion for - Reno, NV  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 krev 232142|
area forecast discussion
national weather service reno nv
242 pm pdt Thu may 23 2019
Cool, showery weather, with periods of steadier precipitation, and a
chance of thunder, will continue through the memorial day weekend.
Increasing snow levels will keep impacts from snowfall mainly above
7500 to 8000 feet. Warmer temperatures with continued showers and
thunderstorms, but less overall coverage, are expected by the
through next week.
The reasoning for the afternoon forecast has not really changed
that much when compared to previous forecasts. Thus... We have
made only minor changes in the bulk of the short term. The most
substantial change was to start increasing pops late Saturday
Scattered to widespread showers continue into this evening with
just a slim possibility of isolated thunderstorms. This chance is
limited by extensive cloud cover cutting surface heating and low-
to mid-level instability.
A brief break develops later tonight as the current shortwave
trough slides east of the area. That might allow for some brief
clearing overnight. That would mean slightly cooler lows Friday
morning and the possibility of patchy fog in the more fog-prone
valleys of the sierra and northeast california.
Any clearing tonight will allow for more warming of the lower
levels of the atmosphere early Friday. This leads to more
instability in the low to mid-levels and a better chance for deep
convection. Model soundings show lis as low as -4 late Friday
afternoon. While pwats are not much more than 0.55 inches... Slow
storm motions could cause brief moderate downpours late Friday.
This is all ahead of another area of low pressure that drops
south into the region late Friday night into Saturday. Saturday
looks more cloudy and a bit cooler than Friday... But with better
coverage of showers. Thunderstorm chances are a little less as
instability decreases... But the best chance for thunderstorms will
be south of interstate 80.
Late Saturday night and Sunday brings yet another... Deeper... Area
of low pressure. This one is shown sliding to the south a bit
farther west. If this track holds we are likely to be on the more
unstable eastern side initially early Sunday... But then transition
to the northern side of the low. That would put much of western
nevada and eastern california in position to be affected by a
broad scale deformation axis. That means cooler highs... Maybe not
out of the 50s in the lower valleys... Along with more widespread
rain; amounts approaching 0.50 inches are not out of the question.
There might be enough instability for isolated thunderstorms... But
these would not be the main story: moderate rain and well below
normal highs are the story.
In the high elevations above 7500-8500 feet (north to south) we
are likely to see some snow through the weekend. The snow levels
lower a little late Sunday. Sunday and Sunday night will be the
best times for accumulations above 7500-8000 feet... But any
accumulation will still be minor.
All-in-all a rather cool and damp holiday weekend is expected
across western nevada and eastern california.
Long term Memorial day through next Thursday...
the main message for the long term is that we will warm back to
near normal by mid next week, and chances for showers and
afternoon thunderstorms will be present each day through Thursday.
The biggest change to the forecast was to add slight chances of|
thunder each afternoon memorial day through next Thursday, as
enough moisture and instability should be present to initiate some
A large upper-level trough will be situated over the western us
Sunday, with a secondary closed 500 mb low pivoting through
central ca and into the southern great basin by Monday. This low
will wrap existing pacific moisture around and into the sierra and
western nv, which will provide synoptic lift for showers and a
slight chance for isolated afternoon thunderstorms memorial day.
For now, thunder was added over western portions of lassen,
plumas, and sierra counties, and over portions of far eastern
pershing and churchill counties. Temperatures will still be about
10 degrees below normal Monday.
Heights should build behind this low Tuesday. However, this will
be short-lived, as another small amplitude trough will slide
into the great basin Tuesday night into Wednesday. Slight height
falls associated with this shortwave will allow for chances of
showers and isolated thunderstorms Tuesday and Wednesday
afternoon. Temperatures will warm Tuesday, and by Wednesday much
of the forecast area will be back to near normal (highs in the
mid-70s for western nv valleys and low-to-mid 60s for sierra
There is some disagreement between the GFS and ECMWF as to what
happens with this aforementioned trough next Thursday. The ecmwf
keeps this trough over the forecast area, whereas the GFS slowly
lifts this feature north, allowing heights to build. Thunder was
put into the gridded forecast since both operational models show
ample instability and cooling aloft Thursday. -johnston
MVFR CIGS continue this afternoon with more numerous showers
forming this afternoon. Terminals will keep vcsh into the evening
to account for hit miss variety showers. Some ifr possible for
sierra locations during showers. A very isolated thunderstorm will
be possible this evening, but cloud cover has largely limited the
available energy for thunderstorm formation. Still, it cannot be
completely ruled out.
For tonight, lcls will fall under nocturnal stability and the
passing of a shortwave trough. Expect some cloud cover to clear a
little along the sierra front and portions of western nevada.VFR
is most likely for krno and kcxp, but there could be some ragged
low cloud lingering west of the airports along the snow line of
the carson range. While it's possible for a some clearing at
sierra terminals, expect lingering moisture to allow for cloud
cover at least at and below local snow line levels. The result
will likely be MVFR cigs, but if clearing is stronger, then fog
will occur. Ktrk is the most susceptible for fog formation and
would be vlifr were stratus to completely clear while ktvl would
be MVFR ifr in br fg.
Chances of showers continue later for kmmh which will generally be
MVFR with CIGS and periodically with vis during showers.
Thunderstorm chances increase Friday while coverage of showers
decrease some. All terminals could see an isolated thunderstorm
during the afternoon hours. By Saturday and Sunday, more
rain, rain showers, and very isolated thunderstorms are expected.
Sunday will be the wettest day this weekend with an area of
deformation spreading over the region. Boyd
Rev watches warnings advisories
For more information from the national weather service visit...
http: weather.Gov reno
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Reno, Reno Tahoe International Airport, NV||17 mi||59 min||W 3||10.00 mi||Partly Cloudy||48°F||37°F||66%||1014.2 hPa|
|Reno/Stead, NV||18 mi||79 min||NNW 6||10.00 mi||A Few Clouds||36°F||32°F||87%||1017.3 hPa|
Wind History from RNO (wind in knots)
|1 day ago||N||N||N||Calm||N||NW||NW||N||N||NE|
|2 days ago||SW||SW||NW||N||Calm||N||S||W|
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GOES Local Image of CentralWestCoast 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 Reno, NV (4,6,7,8)(on/off)  Help
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