Area Forecast Discussion
Issued by NWS Reno, NV

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FXUS65 KREV 260830
AFDREV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
130 AM PDT SUN APR 26 2015

.SYNOPSIS...
HIGH PRESSURE WILL BUILD OVER THE SIERRA AND WESTERN NEVADA
TODAY, WITH AFTERNOON HIGHS WARMING INTO THE 70S AND 80S FOR MID
WEEK. LOW PRESSURE WILL PASS THROUGH THE PACIFIC NORTHWEST ON
WEDNESDAY WITH BREEZY AND DRY CONDITIONS.

&&

.SHORT TERM...

FORECAST REMAINS ON TRACK WITH HIGH PRESSURE BUILDING OVER THE
WEST BRINGING WARM AND DRY CONDITIONS THROUGH MID WEEK. WITH THE
RECENT RAIN/SNOW, FOG WILL DEVELOP IN THE USUAL NORTHERN SIERRA
VALLEYS AND BURN OFF AROUND 10AM THIS MORNING.

AS THE HIGH SETTLES IN TODAY, A BREEZY NORTH FLOW COULD BRING
GUSTS AS HIGH AS 45 MPH TO MINERAL COUNTY WITH GUSTS 30 MPH OR
LESS ELSEWHERE. WINDS WILL TRANSITION TO NORTHEAST TO EAST BY
TONIGHT WITH HIGHEST GUSTS OVER THE SIERRA CREST. GUSTS UP TO 25
MPH WILL ALSO IMPACT THE TAHOE BASIN LATE TONIGHT AND MONDAY
MORNING WITH CHOPPY CONDITIONS ALONG THE WEST SHORE.

AFTERNOON HIGHS WILL WARM ABOUT 7-10 DEGREES THROUGH TUESDAY.
ESSENTIALLY HIGHS WILL BE IN THE 50S TO LOW 60S TODAY, THE 60S TO
LOW 70S FOR MONDAY AND THE 70S TO LOW 80S BY TUESDAY. A FEW
WESTERN NEVADA LOCATIONS COULD GET WITHIN A COUPLE DEGREES OF THE
RECORD HIGHS ON TUESDAY, WHICH ARE RIGHT AROUND 85 DEGREES. BRONG

.LONG TERM...WEDNESDAY THROUGH SUNDAY...

MADE SOME CHANGES TO AFTERNOON/EVENING CHANCES FOR PRECIPITATION
FROM THURSDAY ONWARD TO ACCOUNT FOR THE POTENTIAL FOR THUNDERSTORMS
THROUGH THE WEEK AND INTO NEXT WEEKEND.

A TROUGH PUSHING INTO THE PACIFIC NORTHWEST WEDNESDAY WILL BRING A
COOLING TREND ALONG WITH SOME BREEZY WINDS. MODELS ARE IN BETTER
AGREEMENT WITH THE SOUTHWARD PROGRESSION OF THE TROUGH, BRUSHING IT
BY NORTHERN NEVADA. PRECIPITATION CHANCES LOOK TO REMAIN RIGHT ALONG
THE NEVADA-OREGON BORDER FOR NOW, BUT THEY ARE STILL PRETTY LOW AS
THE TROUGH PASSES TO THE NORTH. MAIN IMPACTS WILL BE FROM BREEZY
WEST WINDS WEDNESDAY AFTERNOON AND INCREASED CLOUD COVER NORTH OF
INTERSTATE 80.

A COOLING TREND WILL SETTLE IN ON THURSDAY AS THE TROUGH EXITS THE
REGION, AND LEAVES EASTERLY FLOW ACROSS THE SIERRA AND WESTERN
NEVADA. BY FRIDAY MODELS BEGIN TO DIVERGE WITH THE ECMWF SHOWING A
CUTOFF LOW DEVELOP ACROSS CENTRAL CALIFORNIA, WHILE THE GFS BRINGS
THE RIDGE BACK ACROSS THE REGION. BOTH OPERATIONAL MODELS ARE
SHOWING INCREASING CHANCES FOR THUNDERSTORM DEVELOPMENT ACROSS THE
SIERRA STARTING FROM THURSDAY THROUGH THE END OF THE WEEK. FORECAST
CONFIDENCE IS RELATIVELY LOW FOR WHICH AFTERNOONS WILL BE MORE
CONDUCIVE TO DEVELOPMENT SINCE MODELS DIFFER ON THE POSITION OF THE
BEST INSTABILITY ASSOCIATED WITH THE CUT OFF LOW AT THIS TIME.
WEISHAHN

&&

.AVIATION...
EXPECT AREAS OF FOG TO DEVELOP IN SIERRA VALLEYS THIS MORNING,
ESPECIALLY AT KTRK BETWEEN 10Z-15Z.

OTHERWISE, VFR CONDITIONS EXPECTED AT ALL TERMINALS TODAY WITH
BREEZY NORTH WINDS EXPECTED THIS AFTERNOON. WINDS WILL SHIFT TO
THE NORTHEAST AND EAST LATER THIS EVENING WITH GUSTY EAST WINDS
ACROSS THE SIERRA RIDGES OVERNIGHT. WEISHAHN

&&

.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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