Weather Service Report


534 
FXUS65 KREV 230320 AAB
AFDREV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
810 PM PDT FRI AUG 22 2014

.UPDATE...
ONE MORE UPDATE - THIS TIME TO EXPIRE THE RED FLAG WARNING. AS A 
COLD FRONT PUSHES THROUGH HUMIDITIES ARE INCREASING TO ABOVE 15-20% 
IN MOST AREAS. WINDS WILL REMAIN GUSTY THIS EVENING BUT ARE EXPECTED 
TO SETTLE DOWN OVERNIGHT. A BAND OF LIGHT SHOWERS WILL PROGRESS ESE 
ACROSS PERSHING AND CHURCHILL COUNTIES THIS EVENING. WILL CONTINUE 
ISOLATED SHOWER MENTION IN THOSE AREAS FOR THE EVENING. REST OF 
FORECAST UNCHANGED. CS


&&

.SYNOPSIS...
WINDS WILL DIMINISH LATER THIS EVENING AS LOW PRESSURE MOVES INTO
THE NORTHERN ROCKIES. COOLER TEMPERATURES WILL REACH THE AREA
TONIGHT AND SATURDAY WITH WARMING TREND FOR THE START OF NEXT WEEK
AS HIGH PRESSURE BUILDS OVER THE WEST. 

&&

.SHORT TERM...

LOW PRESSURE OVER OREGON WILL MOVE SOUTHERN IDAHO TONIGHT WITH
GUSTY WINDS DECREASING BY 11PM. A NORTH TO NORTHWEST WIND WILL
DEVELOP BEHIND THE DEPARTING LOW, FOR AREAS NORTH AND EAST OF
SUSANVILLE TO PYRAMID LAKE TO FALLON.

FOR TONIGHT, COOLER AND DRIER AIR WILL MOVE INTO THE REGION WITH
TEMPERATURES FALLING TO NEAR FREEZING IN THE SIERRA VALLEYS WITH A
FEW LOCATIONS ACROSS WESTERN NEVADA AND NORTHEAST CALIFORNIA
DROPPING TO NEAR 40. HIGHS SATURDAY AFTERNOON WILL REMAIN ON THE
COOL SIDE WITH LOW 80S FOR THE VALLEYS AND 70S IN THE SIERRA.

SUNDAY WILL FEATURE A DRY NORTHWEST FLOW AS THE RIDGE OVER THE
PACIFIC APPROACHES THE WEST COAST. WINDS WILL REMAIN LIGHT WITH
HIGHS RISING INTO THE MID 80S FOR THE LOWER ELEVATIONS WITH 70S TO
LOW 80S IN THE SIERRA. BRONG

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

NO SIGNIFICANT CHANGES TO THE FORECAST TODAY. ON MONDAY NEVADA WILL 
BE ON THE BACK SIDE OF THE LARGE SCALE TROUGH THAT IS MOVING THROUGH 
THE AREA TODAY. TEMPERATURES WILL BE RIGHT AROUND AVERAGE TO START 
THE WEEK WITH UPPER 80'S IN WESTERN NEVADA SLOWLY CLIMBING INTO THE 
MID 90'S THROUGH THE WEEK AS RIDGING REBUILDS OVER THE SOUTHWEST. 

THE RIDGE WILL BEGIN TO FLATTEN ON TUESDAY WITH ANOTHER TROUGH 
APPROACHING THE PACIFIC NORTHWEST BY THE END OF THE WEEK. WINDS WILL 
BE LIGHT TO START THE WEEK WITH ZEPHYR WINDS RETURNING WEDNESDAY 
THEN STRENGTHENING THURSDAY AND FRIDAY AS INCOMING TROUGH INCREASES 
TEMPERATURE/PRESSURE GRADIENTS. TOLBY

&&

.AVIATION...

LARGE TROUGH CURRENTLY DIGGING INTO NEVADA WILL CONTINUE TO CREATE 
GUSTY SURFACE WINDS OF 25-30KTS UNTIL AROUND 04Z. WINDS WILL SHIFT 
FROM WSW TODAY TO MORE NORTHERLY OVERNIGHT. A FEW THUNDERSTORMS HAVE 
DEVELOPED TODAY IN CENTRAL AND NORTHERN NEVADA WITH ONLY A FEW 
CUMULUS IN WESTERN NEVADA. VFR CONDITIONS AT ALL TERMINALS THROUGH 
THE WEEKEND WITH THE POSSIBLE EXCEPTION OF SOME BLOWING DUST NEAR 
DRY LAKE BEDS TODAY. TOLBY

&&

.FIRE WEATHER...
THE RED FLAG WARNING FOR THE SIERRA FRONT AND THE WEST-CENTRAL
NEVADA BASIN AND RANGE IS SHAPING UP TO BE MARGINAL. WIND GUSTS
ARE IN THE HIGH 20S TO LOW 30S (LOCALLY TO 35 MPH IN WIND PRONE
AREAS) THIS AFTERNOON, HOWEVER HUMIDITIES ARE STRUGGLING TO DROP
BELOW 15%. STILL, WITH GUSTY WINDS AND HUMIDITIES IN A FEW SPOTS
BETWEEN 12-15% WILL LEAVE THE RED FLAG WARNING INTACT FOR NOW.

NORTH TO NORTHWEST WINDS ARE EXPECTED STAY UP IN SOME AREAS
THROUGH THE NIGHT, ESPECIALLY ACROSS NORTHERN WASHOE AND PERSHING
COUNTIES, AS WEAK HIGH PRESSURE BUILDS INTO NORTHERN NEVADA.
HOWEVER, HUMIDITIES WILL RECOVER DECENTLY OVERNIGHT. FOR THIS
WEEKEND, MUCH LIGHTER WINDS ON TRACK FOR THIS WEEKEND WITH
TYPICALLY LOW AFTERNOON HUMIDITIES. SNYDER

&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING NVZ004.

     LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING NVZ002.

CA...LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING CAZ072.

&&

$$

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











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