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AGUS76 KRSA 171921
HMDRSA
HYDROMETEOROLOGICAL DISCUSSION
NATIONAL WEATHER SERVICE / CALIFORNIA NEVADA RFC / SACRAMENTO CA
1220 PM PDT TUE MAR 17 2026
..RECORD WARM TEMPERATURES AND DRY CONDITIONS THROUGH THIS WEEK
..MAYBE A STRAY SHOWER IMPACTING SRN OR CASCADES FRI PM/SAT AM
METEOROLOGICAL CONDITIONS (TUE PM - MON AM)
LITTLE CHANGE TO THE AFTERNOON FORECAST THAT WILL BE DOMINATED BY A
STRONG HIGH PRESSURE RIDGE MOVING SLOWLY ACROSS THE REGION...FINALLY
EXITING BY THIS WEEKEND. STILL ANTICIPATING RECORD HEAT FOR MARCH
EACH OF THE NEXT 4 TO 5 DAYS WITH AFTERNOON HIGH TEMPERATURE
ANOMALIES PEAKING THIS THURSDAY AND FRIDAY ANYWHERE FROM PLUS 15- TO
PLUS 30-DEGF OVER SEASONAL NORMALS.
A MOISTURE PLUME MAKING ITS WAY FROM NEAR THE HAWAIIAN ISLANDS TO
THE PACIFIC NORTHWEST WILL BRING WIDESPREAD PRECIP TO COASTAL BC AND
WA THIS WEEK. A S/WV TROF APPROACHING THE COAST NEAR VANCOUVER
ISLAND ON FRIDAY WILL FINALLY DISPLACE THIS MOISTURE PLUME SOUTHWARD
TOWARD THE CA/OR BORDER LATE FRIDAY INTO EARLY SATURDAY...BUT ERODE
CONSIDERABLY AS THE MOISTURE INTERACTS WITH THE WARM AND DRY AIRMASS
OVERHEAD. MODELS ARE STARTING TO HINT AT A FEW SHOWERS MAKING THEIR
WAY DOWN TO THE UPPER KLAMATH RIVER BASIN. DECIDED TO INCLUDE A
COUPLE HUNDREDTHS OF AN INCH OF PRECIP TO THE CREST OF THE SOUTHERN
OR CASCADES NEAR CRATER LAKE. AND THAT IS ALL FOR PRECIP EXCITEMENT
ACROSS THE REGION INTO EARLY NEXT WEEK.
QPF GRAPHICS ARE AVAILABLE AT WWW.CNRFC.NOAA.GOV/QPF.PHP
DRK
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