349
NGUS86 KRSA 242112
HCMRSA
HYDROMETEOROLOGICAL COORDINATION MESSAGE
NATIONAL WEATHER SERVICE / CALIFORNIA NEVADA RFC / SACRAMENTO CA
130 PM PST TUE FEB 24 2026
...ATMOSPHERIC RIVER CURRENTLY SPREADING PRECIPITATION ACROSS
NORTHERN CALIFORNIA...
...DRY CONDITIONS TO RETURN THURSDAY WITH THE POTENTIAL FOR A WEAK
SYSTEM OVER THE WEEKEND...
METEOROLOGICAL CONDITIONS (TUE PM - MON AM)
ATMOSPHERIC RIVER CONDITIONS CONTINUE ACROSS A WIDE SWATH OF
NORTHERN CALIFORNIA, SPREADING PRECIPITATION ACROSS REGIONS NORTH OF
THE I-80 CORRIDOR. GUIDANCE CONTINUES TO TREND TOWARDS THE MOISTURE
PLUME HANGING FURTHER NORTH THAN MANY OF THE PREVIOUS RUNS,
INCREASING PRECIPITATION ACROSS THE NORTH AND DECREASING FURTHER
SOUTH. THE AFTERNOON FORECAST SAW INCREASES BY UP TO 0.5 INCHES IN
THE NORTHERN RUSSIAN BASIN AND SMITH BASIN WHILE DECREASES OF UP TO
AN INCH WERE MADE ALONG THE CENTRAL SIERRA TO SOUTHERN SIERRA.
WITH THE ATMOSPHERIC RIVER AND ITS DIRECT TROPICAL TAP, FREEZING
LEVELS WILL REMAIN QUITE HIGH THROUGHOUT THE ENTIRETY OF THE EVENT,
HOVERING AROUND 9.5K FEET ACROSS THE NORTH AND 13K FEET ACROSS THE
SOUTH.
THE NEXT CHANCE FOR PRECIPITATION WILL COME OVER THE WEEKEND WHEN AN
UPPER-LEVEL SHORTWAVE PUSHES A FRONT WITH WEAK AND DISORGANIZED
MOISTURE TRANSPORT ONSHORE. CURRENT PRECIPITATION FORECASTS ARE
RELATIVELY MODEST WITH ACCUMULATIONS UP TO 0.5 INCHES ACROSS
NORTHERN CALIFORNIA, THOUGH ACCUMULATIONS WERE SLIGHTLY DECREASED
IN SOME LOCATIONS ACROSS THE FAR NORTH.
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
CH
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