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 6:59AM||Sunset 7:12PM||Thursday March 21, 2019 4:30 AM PDT (11:30 UTC)||Moonrise 8:11PM||Moonset 7:42AM||Illumination 100%|
7 Day Forecast for Marine Location Near Lee Vining, CAHourly EDIT Help
Area Discussion for - Reno, NV  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 krev 211001|
area forecast discussion
national weather service reno nv
301 am pdt Thu mar 21 2019
Lower valley rain and mountain snow showers will slowly dissipate
today as low pressure exits the region. Another storm moves in
Friday bringing light snow accumulations down to 5000 feet by
Saturday morning. After a brief break on Sunday, another storm is
possible by Monday with gusty winds, valley rain, and mountain
snow heading into the middle of next week.
Weak area of low pressure continues to slowly move across the region
early this morning. A deformation zone rotating around the low has
produced a light precipitation band across for portions of western
nevada through much of the night and early this morning. These
showery conditions will continue through today, but the better
chances for showers will deviate southward as the low shifts. High
resolution simulations continue to show the best chances for more
widespread showers across mineral and southern mono counties through
the early afternoon. Later in the afternoon, there will be sufficient
heating and moisture for slight chances of thunderstorms, especially
across the basin and range areas. We certainly can't rule out some
pea-size hail and localized heavier showers.
After a short break Thursday afternoon through early Friday, the
next system pushes into the region Friday afternoon. This storm
pushes through fairly quickly, but will bring another round of snow
to the sierra. While snow levels start out relatively high (~7000
feet), colder air works into the region by Saturday morning with
snow levels dropping down to near 5000 feet. While there may be some
light rain and snow in western nevada, the highest precipitation
amounts will be confined to the sierra, particularly from alpine
county southward. If you have travel plans across the sierra this
weekend, plan for some snow accumulation near the passes Saturday
morning. While accumulations will be lighter at lower elevations,
roads may still be slick Saturday morning so take caution and slow
down. Temperatures will also remain fairly chilly on Saturday
behind the cold front, with highs running about 10 degrees below
Long term Sunday into next week...
unsettled weather for much of next week
main change to adjust down precipitation chances late Monday night
through Tuesday afternoon. Forecast uncertainty is moderate to high,
especially Monday through Tuesday night, as simulations differ
substantially with how far south an upper disturbance and an
associated cold front will get.
After a dry and quiet Sunday with seasonable temperatures, unsettled
weather is expected for much of next week. As mentioned, forecast
uncertainty rises sharply between Monday and Tuesday night. This
revolves around the position of a lead upper wave moving out of a
large eastern pacific trough on Monday. The gfs, with its farther
south upper wave, advances a cold front to near the i-80 corridor by
Monday evening while the ec keeps the front over far northeast ca
and northwest nv. This results in approximate precipitation amounts
of 2 to 2.5 inches near the tahoe crest Monday and Tuesday in the
gfs, with 0.5 inches at best in the ec. In addition, with the front
hanging up farther north in the ec, travel impacts due to|
northern central sierra and northeast ca snow vary greatly. The gfs
would bring impacts Monday and Tuesday, especially overnight and in
the morning, while the ec would bring mostly trouble-free travel
conditions to the main tahoe passes.
For western west-central nv and mono county Monday and Tuesday,
impact uncertainty is much lower as precipitation amounts are much
less in simulations and it looks like mainly rain for major travel
routes. Of more concern is wind on Monday along and east of highway
395 and along and south of i-80. Those areas could see substantial
impacts due to aviation turbulence and dangerous winds for high-
profile vehicles. As wind strength is usually at least somewhat
uncertain in the lee of the sierra due to mountain wave interactions
too subtle to discern this far out, just consider this a heads up
for now if you have travel plans Monday.
Moving beyond Tuesday afternoon, simulations appear to come back
closer together as the main upper trough off the california coast
comes inland and pushes colder air into the region. With continued
moist flow off the pacific, this will increase the threat for travel
headaches over the sierra and in northeast california between
Tuesday night and Thursday, especially during the overnight and
morning hours when roads will likely be cold enough for snow to
accumulate. For western nv, periodic snow showers could bring
troubles as well, especially above lower valley floors overnight.
Main concern this morning for the sierra and western and west-
central nevada is MVFR conditions (mainly cigs) and terrain
obscuration as a deformation axis has formed up overnight.
Precipitation is mainly rain below about 5200-5500 feet msl, with
light snow above that. Any snow accumulation at ktrk ktvl this
morning should remain very light.
The deformation axis rain and snow is expected to mostly dissipate
this morning, with additional isolated to scattered showers
developing this afternoon with daytime heating and weak instability.
A few thunderstorms are possible, mainly east of a gerlach to
fernley to hawthorne line. Any storms will be weak with very small
hail or snow pellets and occasional lightning.
Tonight into Friday will bring a brief break before the next system
brings additional terrain obscuration, mountain snow, and valley
rain and snow late Friday afternoon into Saturday. A fairly modest
snowfall is possible for sierra terminals, with little or no
snowfall for lower valley (krno kcxp kmev knfl klol) terminals.
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
|Mammoth Yosemite Airport, CA||28 mi||35 min||N 0||10.00 mi||Overcast||30°F||25°F||82%||1014.2 hPa|
Wind History from MMH (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||Calm||Calm||N||Calm||SE||E||E||SE||E||SE||SE||SE|
|2 days ago||Calm||NW||N||Calm||Calm||Calm||Calm||SW||N||Calm||Calm||Calm||Calm||Calm||Calm||Calm||NW||Calm||Calm||N||Calm||Calm||W||Calm|
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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 (7,2,3,4)(on/off)  Help
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