505
NGUS86 KRSA 181320
HCMRSA
HYDROMETEOROLOGICAL COORDINATION MESSAGE
NATIONAL WEATHER SERVICE / CALIFORNIA NEVADA RFC / SACRAMENTO CA
620 AM PDT MON MAY 18 2026
..DRY WITH GENERAL WARMING THROUGH THE WEEK
METEOROLOGICAL CONDITIONS (MON AM - SUN AM)
LATEST SETUP SHOWS TROFFING OVER THE INTERIOR EXTENDING FROM THE
NORTHERN ROCKIES BACK SOUTHWEST OVER THE GREAT BASIN...WHILE AN UPR
RIDGE OFF THE WEST COAST STRETCHES UP INTO BC. THIS CONTINUES THE
DRY NORTHERLY FLOW ACROSS THE REGION. THROUGH THE MIDDLE OF THE
WEEK...THIS OVERALL PATTERN WEAKENS A BIT...BUT CONTINUES TO SHOW
THE TROFFING OVER THE INTERIOR OF THE WESTERN US WITH AN UPR RIDGE
OFF THE WEST COAST PUSHING INTO EXTREME WESTERN CANADA. ALTHOUGH
WEAKER...FLOW WILL STILL REMAIN NORTHERLY ACROSS THE REGION. FINALLY
INTO THE UPCOMING WEEKEND...THE FLOW WILL FLATTEN A BIT WITH THE
POTENTIAL FOR THE NEXT DISTURBANCE TO MOVE OVER BC AND THE PACIFIC
NORTHWEST A WEEK FROM NOW. OVERALL...DRY CONDITIONS WITH
TEMPERATURES WARMING THROUGH THE PERIOD FROM CURRENTLY NEAR OR BELOW
AVERAGE FOR THIS TIME OF YEAR TO APPROX PLUS 5- TO PLUS 15-DEGF OVER
SEASONAL NORMALS BY THE END OF THIS WEEK INTO THE WEEKEND...EXCEPT
FOR THE IMMEDIATE COAST WHERE THE MARINE LAYER WILL INFLUENCE
CONDITIONS.
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
DRK
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