700
AGUS76 KRSA 151321
HMDRSA
HYDROMETEOROLOGICAL DISCUSSION
NATIONAL WEATHER SERVICE / CALIFORNIA-NEVADA RFC / SACRAMENTO CA
620 AM PDT MON JUN 15 2026
..CONTINUED WARM WITH PM SHOWERS/T-STORMS OVER THE SIERRA CREST
..PATTERN SHIFT LOOKING TO OCCUR FRIDAY INTO SATURDAY
METEOROLOGICAL CONDITIONS (MON AM - SUN AM)
HIGH PRESSURE CONTINUES TO BE THE DOMINANT WEATHER FEATURE ALONG AND
JUST OFF THE WEST COAST THIS MORNING. THIS CONTINUES TO BRING ABOVE
AVERAGE TEMPERATURES THAT ARE RUNNING PLUS 5- TO PLUS 20-DEGF FOR
THIS TIME OF YEAR. THROUGH THE MIDDLE OF THE WEEK...LOOK FOR THIS
AREA OF HIGH PRESSURE CONTINUE TO HOLD STRONG ALONG THE WEST COAST
BEFORE FINALLY STARTING TO SHIFT INLAND AND EASTWARD BY THE END OF
THE WEEK. THIS IS WHEN THE PATTERN WILL SHIFT A BIT AS A S/WV TROF
MOVES TOWARD THE REGION AND SLIDES INLAND ON SATURDAY INTO SUNDAY.
AS FOR PRECIP CHANCES THROUGH THE WEEK...WITH ENOUGH MOISTURE AND
INSTABILITY...LOOK FOR AFTERNOON AND EARLY EVENING SHOWERS AND
THUNDERSTORMS TO BUILD OVER THE CREST OF THE CENTRAL/SOUTHERN SIERRA
FOR MONDAY THROUGH WEDNESDAY...THEN STRETCHING NORTHWARD OVER THE
ENTIRE RANGE ON THURSDAY. WITH THE SYSTEM APPROACHING DURING THE
LATTER PORTION OF THE PERIOD...SHOWER AND THUNDERSTORM CHANCES WILL
INCREASE OVER NORTHEAST CA INTO NORTHERN NV ON FRIDAY INTO SATURDAY.
FREEZING LEVELS WILL RANGE FROM APPROX 15000- TO 17000-FEET THROUGH
THURSDAY BEFORE SHOWING A SLIGHT DECREASE...ESPECIALLY NORTH... AS
THE TROFFING DEVELOPS ALONG THE WEST COAST ON FRIDAY INTO SATURDAY.
FOR THOSE TWO DAYS...LOOK FOR FREEZING LEVELS TO RANGE FROM 13000-
TO 17000-FEET FROM NORTH TO SOUTH.
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
DRK
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