Area Forecast Discussion
Issued by NWS Reno, NV

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

000
FXUS65 KREV 210912
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
212 AM PDT Fri Sep 21 2018

.SYNOPSIS...

Dry weather will continue for northeast California and western
Nevada through early next week with warm afternoons and cool to
chilly nights. Afternoon breezes are expected through the weekend,
with lighter winds for the first part of next week.

&&

.DISCUSSION...

Above normal daytime temperatures with cool nights will continue
as high pressure remains over northeast California and western
Nevada. Light afternoon winds will persist through today before a
trough brushes by across the Pacific Northwest this weekend.
Saturday afternoon winds will be more breezy with the trough
passage to the north with even more breezy conditions on Sunday,
especially north of Interstate 80. Simulations vary on the depth
of the trough, with the NAM showing a splitting trough across the
region. Plan for more breezy conditions this weekend along with a
modest cooldown. The winds for both Saturday and Sunday afternoons
heighten fire weather concerns. Please read the fire weather
discussion below for more details.

The ridge amplifies across the west on Monday bringing seasonally
warm high temperatures. The rest of next week will bring a gradual
warmup to above average temperatures (80s to near 90 lower valleys,
70s to low 80s Sierra valleys) as the ridge continues to strengthen
over the region. By the end of the week the GFS is showing potential
for a cutoff low to undercut the very amplified ridge. While cutoff
lows can be extremely pesky to predict and track, it is something
to keep an eye on for the end of September into October. -Edan

&&


.AVIATION...

VFR through Saturday. Winds will remain generally light today with
some late afternoon/early evening southwest to west breezes 8-12 kts
along the Highway 395 corridor. Winds will pick up Sat-Sun as a
trough drops into the Pacific Northwest and advances east into the
northern Rockies. Southwest to west winds 10-15 kts with gusts to 25
kts can be expected both days. Ridge wind gusts will increase to 35-
40 kts leading to some lee side turbulence especially for smaller
aircraft. A cold front will move through the area Sunday night with
winds shifting to a northeast direction for Monday. Hohmann

&&

.FIRE WEATHER...

Winds will increase Saturday/Sunday across the Sierra and much of
western NV ahead of an incoming trough. Wind gusts 25-30 mph are
expected, which are just below criteria. That being said, very dry
fuels and breezy winds will produce near-critical conditions across
western Nevada in the afternoons and early evenings. We are not
expecting to issue any Red Flag Warnings at this time, but we will
headline the breezy and dry conditions. -Hoon/Hohmann

&&


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

$$

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


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.