657
NGUS86 KRSA 121319
HCMRSA
HYDROMETEOROLOGICAL COORDINATION MESSAGE
NATIONAL WEATHER SERVICE / CALIFORNIA-NEVADA RFC / SACRAMENTO CA
620 AM PDT FRI JUN 12 2026
...HIGH PRESSURE TO BRING WIDESPREAD DRY CONDITIONS AND ABOVE
NORMAL TEMPERATURES THROUGH AT LEAST MID NEXT WEEK...
...SLIGHT CHANCE OF ISOLATED SHOWERS/T-STORMS OVER THE SRN SIERRA
THROUGH THE WEEKEND...
METEOROLOGICAL CONDITIONS (FRI AM - THU AM)
A STRONG UPPER RIDGE REMAINS SITUATED JUST OFFSHORE OF THE WEST
COAST AS TROUGHING DROPS INTO THE INTERMOUNTAIN WEST FROM CANADA.
ALTHOUGH MODELS HAVE SOME OF THIS TROUGHING OVER THE REGION THIS
WEEKEND, 500 MB HEIGHTS STILL LOOK ON THE ORDER OF 585 DM PLUS. IN
OTHER WORDS, TEMPERATURES WILL REMAIN WELL ABOVE AVERAGE AWAY FROM
THE IMMEDIATE COAST. ANOMALIES EXPECTED ROUGHLY +5 TO +15 DEG F WITH
SOME AREAS APPROACHING +20 DEG F THROUGH AT LEAST MID NEXT WEEK AS
HIGH PRESSURE GRADUALLY SHIFTS OVERHEAD. 500 MB HEIGHT ENSEMBLES
SHOW THE RIDGE FLATTENING SOME LATE NEXT WEEK POSSIBLY BRINGING
TEMPERATURES BACK CLOSER TO NORMAL BY THE WEEKEND, BUT STILL
UNCERTAIN AT THIS TIME.
OTHER THAN THE HEAT, MODELS ALSO CONTINUE TO SHOW SOME MID LEVEL
MOISTURE AND INSTABILITY OVER THE SOUTHERN SIERRA, FAR SRN CA, AND
SRN NV IN THE AFTERNOONS/EARLY EVENINGS TODAY AND TOMORROW, PULLING
OUT OF SRN CA SUNDAY AFTERNOON. THIS COULD RESULT IN A FEW
CONVECTIVE SHOWERS/ISOLATED THUNDERSTORMS.
FREEZING LEVELS REMAIN HIGH THROUGH THE PERIOD MAINLY 15 KFT TO 16.5
KFT REGION WIDE.
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
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