Area Forecast Discussion
Issued by NWS Reno, NV

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000
FXUS65 KREV 010931
AFDREV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
231 AM PDT MON SEP 1 2014

.SYNOPSIS...
NEAR AVERAGE TEMPERATURES ARE EXPECTED TODAY AND TEMPERATURES WILL
WARM A FEW DEGREES TUESDAY. EXPECT SLIGHTLY COOLER TEMPERATURES FOR
THE SECOND HALF OF THE WEEK.

&&

.SHORT TERM...

HAZE FROM WILDFIRES IN NORTHERN CALIFORNIA AND SOUTHERN OREGON
WAS TRANSPORTED INTO NEVADA SOUTH OF YERINGTON AND WEST OF FALLON
YESTERDAY. TRANSPORT WINDS WILL BE WEAKER TODAY AND MUCH LESS
SMOKE WILL MAKE IT INTO NORTHWEST CA/WESTERN NV. FOR TUESDAY
WESTERLY TRANSPORT WINDS 10-20 MPH WILL RETURN, BUT SURFACE WINDS
WILL INCREASE AS WELL. A WEAK ZEPHYR TUESDAY WILL CREATE WEST
WINDS GUSTING UP TO 20 MPH IN THE EVENING. WITH THESE CONDITIONS
HAZE IS LESS LIKELY TO SETTLE INTO WESTERN NV VALLEYS.

WEDNESDAY-WEDNESDAY NIGHT A PACIFIC NORTHWEST TROUGH BEGINS TO
INFLUENCE THE SIERRA AND WESTERN NV WITH WEAK UPPER IMPULSES
CROSSING THE AREA FROM WEST TO EAST. THE AIR MASS SHOULD BE TOO
DRY AND STABLE FOR MUCH OF A MOISTURE RESPONSE OTHER THAN
INCREASING HIGH CLOUDS. WEDNESDAY AFTERNOON TEMPERATURES ARE
EXPECTED TO BE A FEW DEGREES COOLER AS NORTH-NORTHEAST WINDS
10-15 MPH SUSTAINED DEVELOP IN THE AFTERNOON. THESE WINDS MAY
PERSIST OVERNIGHT WEDNESDAY NIGHT, MAINLY FOR LOCATIONS NORTH OF
I-80. JCM

LONG TERM...THURSDAY THROUGH MONDAY...

THERE HAS BEEN A BIT OF CHANGE IN THE MODELS SINCE YESTERDAY. LATEST
00Z RUNS OF THE GFS AND ECMWF ARE STARTING TO DIVERGE IN THEIR
SOLUTIONS BEYOND THURSDAY, LEADING TO LOW OVERALL FORECAST
CONFIDENCE IN THE LONG TERM.

LATEST GFS IS SHOWING THE TROUGH STARTING TO CLOSE OFF LOW PRESSURE
OFF THE NORCAL COAST. THIS WOULD DEVELOP MORE OF A SOUTHEASTERLY
FLOW OVER THE SIERRA AND WESTERN NEVADA, DRAWING UP MOISTURE AND
POSSIBLY INCREASING CHANCES OF CONVECTION LATE IN THE WEEK. THE 00Z
ECMWF CONTINUES TO SHOW DRY SOUTHWEST FLOW OVER THE SIERRA LATE IN
THE WEEK, ALTHOUGH DEVELOPING A CLOSED LOW BY THE WEEKEND. BOTTOM
LINE, WE DIDN`T WANT TO MAKE TOO BIG OF CHANGES IN THE FORECAST,
ALTHOUGH WE STARTED TO ADD ADDITIONAL CLOUDS AND LOW-END POPS TO THE
EXTENDED FORECAST. EITHER WAY, TEMPERATURES WILL BE NEAR AVERAGE FOR
EARLY SEPTEMBER, AS TROUGHING REMAINS OVER THE WEST COAST. HOON

&&

.AVIATION...

VFR CONDITIONS EXPECTED THROUGH TUESDAY AS HIGH PRESSURE BUILDS
INTO THE AREA. LIGHT AFTERNOON BREEZES AND CLEAR CONDITIONS
EXPECTED. FUENTES/HOON

&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...NONE.
CA...NONE.
&&

$$

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/RENO (ALL LOWER CASE)







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