555
FXUS65 KREV 010725
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1225 AM PDT THU OCT 1 2026
KEY MESSAGES
* DRY WEATHER PREVAILS THROUGH SATURDAY WITH ABOVE NORMAL
TEMPERATURES LASTING THROUGH NEXT WEEK.
* WEAK LOW PRESSURE BRINGS A LOW CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EASTERN SIERRA AND NORTHEAST CA ON SUNDAY
INTO MONDAY.
* WARMER AND DRIER THAN NORMAL WEATHER IS FAVORED THROUGH AT LEAST
MID-OCTOBER.
DISCUSSION
LARGE SCALE RIDGE OVER THE WESTERN U.S. WILL BE THE DOMINANT
FEATURE THROUGH NEXT WEEK. THE ONLY EXCEPTION TO THIS IS A WEAK
LOW PRESSURE MOVING THROUGH THE REGION ON SUNDAY INTO MONDAY.
AFTER THIS LOW PRESSURE MOVES OUT, MODELS AND ENSEMBLES HAVE GOOD
AGREEMENT THAT HIGH PRESSURE WILL ONCE AGAIN RE-STRENGTHEN ACROSS
THE WESTERN U.S.
WEATHER-WISE, WITH THIS RIDGE OVERHEAD TEMPERATURES WILL TREND
UPWARD TODAY THROUGH SATURDAY. DURING THIS TIME, MID 80S TO LOW
90S WILL BE COMMON FOR WESTERN NV VALLEYS, EASTERN LASSEN, AND
THE LOWER ELEVATIONS OF MONO COUNTY. TEMPERATURES FOR THE EASTERN
SIERRA VALLEYS WILL RANGE FROM THE MID 70S TO MID 80S, WITH EVEN
UPPER 50S TO MID 60S FOR THE HIGHER ELEVATIONS. THESE TEMPERATURES
ARE UPWARDS OF 10-15 DEGREES ABOVE AVERAGE, AND MORE ANALOGOUS TO
READINGS WE SEE IN LATE AUGUST.
SPEAKING OF THE AFOREMENTIONED WEAK LOW PRESSURE, THE MOST THIS
FEATURE WILL DO IS DECREASE TEMPERATURES ON SUNDAY AND MONDAY BY
AROUND 1-3 DEGREES. ALSO, MODELS AND BLENDED GUIDANCE HAVE
TRENDED LOWER WITH PRECIPITATION CHANCES FOR THE EASTERN SIERRA
AND NORTHEAST CA ON SUNDAY AND MONDAY, NOW AT ONLY 5-10%. AFTER
THIS WEAK LOW MOVES OUT, WE REMAIN DRY WITH WELL ABOVE AVERAGE
TEMPERATURES ALL THE WAY INTO NEXT WEEK. THAT'S ALL I HAVE FOLKS.
ENJOY THE WARM WEATHER WHILE YOU CAN. -MCKELLAR
AVIATION
HIGH PRESSURE MAINTAINS WIDESPREAD VFR CONDITIONS AND LIGHT BREEZES
INTO THE WEEKEND. A WEAK LOW PRESSURE PASSAGE WILL DELIVER A LOW
CHANCE (5-10%) OF SHOWERS AND THUNDERSTORMS TO KTRK-KTVL-KMMH
SUNDAY INTO MONDAY. -MCKELLAR
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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