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Truckee, California 7 Day Weather Forecast
Wx Discussion - Wx Hazards - Wx Special Statements
NWS Forecast for Truckee CA
National Weather Service Forecast for: Truckee CA
Issued by: National Weather Service Reno, NV
Updated: 4:09 am PST Dec 11, 2019
 
This
Afternoon
This Afternoon: A 20 percent chance of rain.  Mostly cloudy, with a high near 41. Southwest wind around 10 mph.
Slight Chance
Rain

Tonight

Tonight: A 50 percent chance of rain.  Mostly cloudy, with a low around 29. Southwest wind around 10 mph.
Chance Rain

Thursday

Thursday: Rain likely.  Mostly cloudy, with a high near 46. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%.
Rain Likely

Thursday
Night
Thursday Night: Rain likely, mainly before 11pm.  Cloudy, with a low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.
Rain Likely

Friday

Friday: Rain likely, mainly after 5pm.  Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph.  Chance of precipitation is 60%.
Rain Likely

Friday
Night
Friday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Rain Likely

Saturday

Saturday: A chance of rain and snow before 11am, then a chance of snow.  Mostly cloudy, with a high near 36. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Chance
Rain/Snow
then Chance
Snow
Saturday
Night
Saturday Night: A chance of snow.  Mostly cloudy, with a low around 16.
Chance Snow

Sunday

Sunday: Mostly sunny, with a high near 34.
Mostly Sunny

Hi 41 °F Lo 29 °F Hi 46 °F Lo 32 °F Hi 44 °F Lo 29 °F Hi 36 °F Lo 16 °F Hi 34 °F

 

This Afternoon
 
A 20 percent chance of rain. Mostly cloudy, with a high near 41. Southwest wind around 10 mph.
Tonight
 
A 50 percent chance of rain. Mostly cloudy, with a low around 29. Southwest wind around 10 mph.
Thursday
 
Rain likely. Mostly cloudy, with a high near 46. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday Night
 
Rain likely, mainly before 11pm. Cloudy, with a low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday
 
Rain likely, mainly after 5pm. Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Friday Night
 
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Saturday
 
A chance of rain and snow before 11am, then a chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Saturday Night
 
A chance of snow. Mostly cloudy, with a low around 16.
Sunday
 
Mostly sunny, with a high near 34.
Sunday Night
 
Partly cloudy, with a low around 13.
Monday
 
Mostly sunny, with a high near 37.
Monday Night
 
Mostly cloudy, with a low around 18.
Tuesday
 
A slight chance of snow. Partly sunny, with a high near 40.

 

Forecast from NOAA-NWS for Truckee CA.

Weather Forecast Discussion
000
FXUS65 KREV 111131
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
331 AM PST Wed Dec 11 2019

.SYNOPSIS...

A series of low pressure systems will move into the area through
the weekend. A weaker and warm system with high snow levels will
provide light rainfall to the Sierra followed by a a colder system
Friday into Sunday with additional Sierra snowfall and light
valley snow showers possible by Sunday. Gusty winds continue
across the Sierra with gusty valleys by Thursday.

&&

.SHORT TERM...

The first band of very light showers across the Sierra is
currently tapering off in intensity this morning. Not too much
precipitation to speak of overnight with this band, but just
enough to wet roadways which may become slick and icy as
temperatures dip to the freezing mark. Only a few very light
showers may spillover across into western Nevada valleys today
with only trace amounts to a few hundredths of rainfall possible.

The large scale pattern for the next few days will feature an
upper-level jet nosing its way across the Pacific NW which will
track south across the Sierra this weekend. Being on the southern
(warmer) side of this jet, we will see rising snow levels with
light rainfall for most elevations tonight into Thursday. This
will be followed by a better swath of moisture beginning Friday
as the colder part of the storm arrives.

Light rainfall through Friday morning will be favored from the
Tahoe Basin northward into Lassen County and into the Surprise
Valley. Overall total rainfall amounts over the next 48 hours
looking to be in about a quarter to a third of an inch with only
trace amounts to a few hundredths across far western Nevada
valleys. Snow impacts aren`t really in the cards for most
locations as snow levels rise from about 6500-7000` today to near
8500-9000` by Thursday afternoon. As the jet travels south, we
could see snow levels descend back down to about 7,000`-7500` by
early Friday evening as the second wave moisture arrives. This may
begin the period for seeing travel impacts as the colder part of
the storm arrives for the remainder of the weekend. See the long-
term discussion for additional details.

This jet will also maintain gusty winds across the Sierra ridge
tops with gusts of 50-60 mph continuing today with a secondary
peak tonight and Thursday where gusts could peak at 90+ mph.
Breezes will begin to increase down in valleys with Thursday
looking like the gustiest day for valleys. Lower valley mixing
and ventilation should be improved today with inversion bases
lifting. Wind gusts in the valleys of 20-25 mph will be possible
today increasing to around 30-40 mph by Thursday. Fuentes

.LONG TERM...Friday Night onward...

A cold front slowly sags south Friday night, with the colder air
looking to arrive a bit earlier than previous simulations depicted.
This means that area passes may begin to see snow impacts by Friday
night. This should also coincide with the peak precipitation rates,
however, liquid and associated snow totals are still meager by
Sierra standards. Passes could see 2-4 inches total Friday night
into Saturday morning with snow character likely to be heavy and
wet.

A secondary front drops south Saturday night into Sunday, with snow
levels falling to valley floors. The GFS and it`s ensemble suite
continue to be much more aggressive with qpf totals, with the EC and
it`s ensembles just showing a quick shot with little accumulation.
Being that ensemble probabilities of greater than 1" of snow remain
low outside of the Sierra, am not expecting significant valley
accumulation. Even in the Sierra, a blended probabilistic approach
only has a 50% chance for 4" or more of snow in the 24 hour period.
Despite overall snow totals being on the low end, travel impacts
Saturday night into Sunday morning are certainly likely. Remember
that light snow accumulation can easily be packed into ice as cars
travel over it.

Following this system, a transient ridge builds over the west, with
weak inversions developing Monday into Tuesday. This looks fairly
short-lived with another system dropping along the west coast by
midweek, though exactly how far inland it makes it is the question.
Ensembles are still hinting at a wet and active pattern developing
for the days leading up to Christmas. This also aligns with the CPC
8-14 day outlook in addition to increasing IVT (Integrated Vapor
Transport) probabilities in the 12/19-12/22 time frame. No need to
freakout just yet, but be sure to check back if you have travel
plans ahead of the holiday. -Dawn


.AVIATION...

Winds are gusty across Sierra ridgelines early this morning (gusts
40-60 kts), with turbulence and potential mountain wave activity.
A few elevated valley locations are seeing wind gusts of 15-20
kts early this morning as well, while lower valleys remain light
and variable. Westerly winds aloft will further increase tonight
into Thursday, with peak wind gusts of 20-25 kts for terminal
sites expected Thursday afternoon.

A few light showers this morning will have mainly dissipated by
daybreak, but the next storm system is approaching rapidly on it`s
heels, moving in later today into Thursday. Periods of reduced
CIGS/VIS along with mountain obscuration are possible. This is a
warmer storm and snow is not expected at any terminal sites. -Dawn

&&

.REV Watches/Warnings/Advisories...
NV...None.
CA...None.

&&

$$

For more information from the National Weather Service visit...
http://weather.gov/reno
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