Area Forecast Discussion
Issued by NWS Reno, NV

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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 32 33 34 35 36 37 38 39 40 41 42 43
000
FXUS65 KREV 292233
AFDREV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
233 PM PST THU JAN 29 2015

.SYNOPSIS...

A LOW PRESSURE CENTER OFF THE BAJA PENINSULA WILL PROVIDE PARTLY
CLOUDY CONDITIONS FRIDAY WITH CLEARING ON SATURDAY AS HIGH
PRESSURE BUILDS. GUSTY RIDGE WINDS ARE EXPECTED ON FRIDAY WITH
CHOPPY CONDITIONS POSSIBLE ON LAKE TAHOE. HIGH PRESSURE WILL BRING
DRY AND MILD CONDITIONS THIS WEEKEND WITH THE STORM TRACK
REMAINING TO OUR NORTH THROUGH NEXT WEEK.

&&

.SHORT TERM...

PARTLY TO MOSTLY CLOUDY SKIES ARE SPREAD ACROSS MUCH OF NEVADA AND
THE SIERRA AS MOISTURE STREAMS NORTH FROM AN UPPER LOW OFF THE BAJA
PENINSULA. THERE IS A NARROW BAND OF LOW LEVEL MOISTURE PUSHING
NORTH OF PYRAMID LAKE WHICH IS CREATING AN OVERCAST DECK NEAR
10,000` MSL BUT OTHERWISE JUST SHALLOW CUMULUS AND HIGH CLOUDS
ACROSS OTHER AREAS. EXPECTING HIGH CLOUDS TO CONTINUE INTO FRIDAY
WITH CLEARING BEGINNING INTO SATURDAY AS A RIDGE BUILDS ACROSS THE
PACIFIC NORTHWEST AND DISPLACES THE UPPER LOW ACROSS FAR SOUTHERN
CALIFORNIA. EAST WINDS WILL ALSO REMAIN IN THE WAKE OF THE LOW WITH
A MODEST UPPER LEVEL JET DROPPING SOUTH ACROSS THE SIERRA BEGINNING
FRIDAY NIGHT INTO SATURDAY MORNING. GUSTY WINDS FROM THE EAST COULD
CREATE SOME CHOPPY CONDITIONS ACROSS LAKE TAHOE LATE FRIDAY
AFTERNOON WITH GUSTS OVER THE SIERRA RIDGES REACHING NEAR 75 MPH
INTO SATURDAY MORNING.

A DRY SLOT THEN FILTERS ACROSS THE REGION SATURDAY INTO SUNDAY AS
THE RIDGE BUILDS, RESULTING IN CLEARING AND TEMPERATURES REMAINING
ABOVE SEASONAL AVERAGES THROUGH THE WEEKEND. HIGHS IN THE MID TO
UPPER 50S ACROSS WESTERN NEVADA COULD SEE HIGHS BACK IN THE LOWER
60S BY SUNDAY. LOW 50S IN THE SIERRA WILL INCREASE INTO THE UPPER
50S BY SUNDAY WITH SOME INCREASE IN HIGH CLOUDS AS MOISTURE STREAMS
ACROSS THE PERIPHERY OF THE RIDGE. FUENTES

.LONG TERM...MONDAY THROUGH THURSDAY...

THE FORECAST IS ON TRACK FOR A WEAK SYSTEM TO SPREAD MOISTURE MAINLY
ACROSS THE PACIFIC NORTHWEST MONDAY, WITH A SLIGHT CHANCE FOR
SHOWERS NORTH OF A SUSANVILLE-GERLACH LINE. TUESDAY-WEDNESDAY A
RIDGE OF HIGH PRESSURE WILL PROVIDE A DRY AND WARMING AIR MASS OVER THE
SIERRA AND WESTERN NV. THE RIDGE AXIS IS EXPECTED TO PROGRESS
EASTWARD TO OVER THE SIERRA BY WEDNESDAY, LEADING TO WINDS ALOFT
TRANSITIONING FROM NORTHWEST TUESDAY TO SOUTHWEST-WEST BY WEDNESDAY.
WINDS SHOULD BE LIGHT AND EVEN ACROSS SIERRA RIDGES GUSTS LESS THAN
20 MPH ARE EXPECTED. MODERATE VALLEY TEMPERATURE INVERSIONS WILL
OCCUR EACH NIGHT, BUT SURFACE HEATING SHOULD PROVIDE ENOUGH
AFTERNOON MIXING TO LIMIT THE TYPICAL INCREASE OF HAZE AND STAGNANT
AIR.

THE RIDGE AXIS IS EXPECTED TO SHIFT OVER THE GREAT BASIN BY THURSDAY
AS A LOW PRESSURE SYSTEM APPROACHES THE WEST COAST. TIMING IS
UNCERTAIN, BUT STRONGER SOUTHWEST WINDS (SIERRA RIDGE GUSTS POSSIBLY
AROUND 60 MPH) COULD INCREASE AFTERNOON MIXING AND MAKE THURSDAY THE
WARMEST DAY OF THE WEEK. JCM

&&


.AVIATION...EXPECT LIGHT EAST WINDS THROUGH 03Z THURSDAY AND THEN
CALM WINDS OVERNIGHT. THE TYPICAL ENHANCEMENT OF THE EAST WINDS AT
KCXP, WITH SPEEDS IN THE 10-15 KT RANGE SHOULD ALSO CONTINUE UNTIL
AROUND 03Z. ON FRIDAY, SFC FLOW BECOMES NORTHEAST DURING THE
AFTERNOON WITH PREVAILING SPEEDS AROUND 10 KT. STRONGER NORTHEAST
WINDS AT RIDGE LEVEL WILL LIKELY PRODUCE AREAS OF TURBULENCE FROM
LATE FRIDAY THROUGH SATURDAY NEAR THE SIERRA. VFR CONDITIONS AT ALL
TERMINALS WITH THE EXCEPTION OF FOG AT KTRK AFTER 12Z FRIDAY
MORNING. JCM

&&


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

&&

$$

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






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