Area Forecast Discussion
Issued by NWS Reno, NV

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FXUS65 KREV 272055
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
155 PM PDT SAT AUG 27 2016

.SYNOPSIS...
Light winds and high temperatures a few degrees above average are
expected through the weekend. High pressure breaks down Monday
and Tuesday for increasing breezes, with cooler temperatures
likely by late week.

&&

.SHORT TERM...
Added haze for Reno and Tahoe through Sunday evening, otherwise
only minor tweaks to the forecast.

High pressure will bring dry and warm conditions into early next
week. Temperatures will be near to slightly (3-6 degrees) above
average with highs in the upper 80s to mid 90s for western Nevada
valleys and low to mid 80s in Sierra valleys. Afternoon zephyr
winds are expected to be average to weak through Sunday. By Monday,
the ridge of high pressure begins to slip off to the south and
east with a slightly stronger zephyr possible...although the
increase is not expected to be enough to warrant too much fire
weather concern.

Tuesday, an upper disturbance will move over northern California
and into central and eastern Oregon. Simulations hint at some mid
level clouds over northeast CA and northwest NV Tuesday morning
and early afternoon as the disturbance, while quick-moving,
exhibits sharp forcing and moderate lapse rates. The question will
be...does the forcing hang around long enough to produce deeper
elevated convection? At this time, it looks to be mainly some
altocumulus with a few ACCAS embedded north of a Portola to
Pyramid Lake to Gerlach line.

If any showers or thunderstorms form Tuesday morning, they will
very likely be dry with swift mid-level flow and dry sub-cloud
layers. At this time, the chances are low (10%) for elevated
convection Tuesday morning. However, with "dry" lightning and
gusty outflow winds possible, the fire weather community and
outdoor events across northeast CA and northwest NV should remain
informed of the latest forecasts and discussions, especially as
Tuesday afternoon could bring gusty winds of 25-35 mph in the wake
of the upper disturbance. Snyder

.LONG TERM...Wednesday through Saturday...

The second half of next week will feature a broad upper trough
over the western U.S. This will bring periods of gusty winds and
a gradual cool down by late week...with little chance for rain
until at least next weekend. Highs for Thursday and Friday were
moderated/warmed a touch for some areas as the trough does not
look quite as deep, at least until next weekend. Snyder

&&

.AVIATION...

VFR conditions are likely through the weekend with mainly light
winds. Late afternoon and early evening winds could increase by
Sunday...but this is more likely Monday as thermal gradients
start to increase.

Some haze has leaked into far western Nevada today, at least
partially from the Mokelumne Fire on the west slopes of the
Sierra south of Lake Tahoe. With southwest to west winds aloft,
haze could hang around periodically for the next couple days
(depending on smoke production from fires)...possibly bringing
some decrease in slantwise visibility for landings at
KRNO/KCXP/KRTS/KMEV. Snyder/20

&&

.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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