737
NGUS86 KRSA 081318
HCMRSA
HYDROMETEOROLOGICAL COORDINATION MESSAGE
NATIONAL WEATHER SERVICE / CALIFORNIA-NEVADA RFC / SACRAMENTO CA
620 AM PDT WED JUL 8 2026
..A FEW SCATTERED SHOWERS OVER NORTHEAST NV TODAY AND THURSDAY
..MOISTURE ASSOCIATED WITH THE MONSOON ARRIVES EARLY NEXT WEEK
METEOROLOGICAL CONDITIONS (WED AM - TUE AM)
WEAK TROFFING CONTINUES TO RESIDE JUST OFF THE WEST COAST...WHILE AN
UPR RIDGE IS CENTERED OVER THE DESERT SOUTHWEST STRETCHING BACK
ACROSS SOUTHERN CA AND NORTHERN BAJA. THIS CONTINUES SOUTHWEST TO
WESTERLY FLOW ACROSS MUCH OF THE REGION TODAY. BEST CHANCE OF ANY
PRECIP OVER THE NEXT COUPLE DAYS WILL BE NORTHEAST NV WHERE THE
08/00Z KLKN RAOB SHOWS 0.67-INCH PW...BUT MUCH OF THIS RESIDING IN
THE MID-LEVELS WITH A RATHER DRY PROFILE IN THE LOWER PART OF THE
ATMOSPHERE. SO...ANY PRECIP THAT DOES DEVELOP WILL BE RATHER
SCATTERED AND MAINLY LIGHT.
THE OVERALL PATTERN IS THEN EXPECTED TO TRANSITION WITH THE UPR
RIDGE STRENGTHENING AS IT MOVES FARTHER DOWNSTREAM ACROSS THE ROCKY
MOUNTAIN STATES STRETCHING OVER THE NORTHERN PLAINS STATES. THIS
WILL SHIFT THE OVERALL FLOW TO A MORE SOUTHEAST TO SOUTH DIRECTION
ACROSS CA AND NV...WHICH WILL ALLOW A SURGE OF MOISTURE WITH PW
VALUES GREATER THAN 1.00-INCH TO MAKE ITS WAY MAINLY OVER THE AREA.
THIS WILL BRING AN INCREASING CHANCE OF SCATTERED SHOWERS STARTING
ON SUNDAY...BUT REALLY KICKING INTO GEAR ON MONDAY INTO TUESDAY. FOR
NOW...BEST PLACEMENT OF THE SHOWERS AND THUNDERSTORMS LOOKS TO BE
ACROSS THE SIERRA SOUTH OF LAKE TAHOE...COASTAL SOUTHERN CA
MOUNTAINS...SOUTHEAST CA DESERTS...AND MUCH OF NV (EXCEPT THE FAR
NORTHWEST CORNER OF THE STATE).
FREEZING LEVELS CURRENTLY RANGE FROM 14500- TO 17500-FEET WITH A
NORTH TO SOUTH GRADIENT OVER THE REGION. THESE WILL PEAK LATER
FRIDAY WITH AN INCREASE UP TO ABOUT 18000-FEET NEAR LAS
VEGAS...BEFORE SETTLING BACK DOWN WITH A MORE WEST TO EAST GRADIENT
OF 15000-FEET (WEST) TO 17000-FEET (EAST).
PLEASE NOTE: THIS PRODUCT MAY NOT BE ROUTINELY UPDATED.
PLEASE REFER TO THE FOLLOWING PRODUCT ISSUED BY THE CNRFC
WWW.CNRFC.NOAA.GOV/DAILY-BRIEFING FOR A GRAPHICAL SUMMARY OF
WEATHER AND HYDROLOGIC CONDITIONS.
QPF GRAPHICS ARE AVAILABLE AT WWW.CNRFC.NOAA.GOV/QPF.PHP
*********************** CONTACT INFORMATION ************************
CNRFC OFFICE HOURS PHONE: 1 (916) 979-3056 EXTENSION 338
AFTER-HOURS CALLING SERVICE: 1 (800) 218-0858
LEAVE NAME...OFFICE...AND PHONE NUMBER
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