124
FXUS65 KREV 171900
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1200 PM PDT TUE MAR 17 2026
KEY MESSAGES
* STRONG HIGH PRESSURE WILL RESULT IN HISTORIC MARCH WARMTH THIS
WEEK.
* THE WARM TEMPERATURES WILL ACCELERATE SNOWMELT, LEADING TO
RIVERS RUNNING FAST AND COLD.
* DRY AND MILD WEATHER IS FAVORED THROUGH THE WEEKEND, BUT A
PATTERN CHANGE WITH SOME COOLING AND CHANCES FOR PRECIPITATION
RETURNS BY MID-NEXT WEEK.
DISCUSSION
RECORD-BREAKING HEAT STARTS TODAY ACROSS MUCH OF THE AREA,
CONTINUING THROUGH AT LEAST FRIDAY. HIGHS TODAY WILL SHOOT UP INTO
THE LOW 80S AND 70S FOR W NV VALLEYS AND SIERRA COMMUNITIES,
RESPECTIVELY, WHICH IS 20-25 DEGREES ABOVE NORMAL. MANY RECORDS
WILL BE BROKEN THIS WEEK, INCLUDING RECORD HIGH OVERNIGHT LOWS.
HOWEVER, LOWS WILL STILL BE COOL ENOUGH (UPPER 40S AND MID TO
UPPER 30S FOR VALLEYS AND HIGHER ELEVATIONS, RESPECTIVELY) TO
PROVIDE AMPLE OVERNIGHT RELIEF, KEEPING OUR AREA IN A REGION OF
MINOR HEATRISK. FRIDAY WILL BE THE WARMEST DAY OF THE WEEK WITH
HIGHS PUSHING THE UPPER 80S AND 70S (VALLEYS AND HIGHER
ELEVATIONS, RESPECTIVELY).
WITH THESE ABNORMALLY WARM TEMPERATURES, EXPECT AN INCREASE IN
SNOWMELT, WHICH WILL HELP INCREASE FLOWS ON LOCAL RIVERS. IT'LL
LOOK APPETIZING TO COOL OFF IN THOSE RIVERS AND LAKES BUT TRY TO
REFRAIN AS THE WATER WILL BE STILL QUITE COLD, WHICH CAN INCREASE
SHOCK. SEEK REFUGE IN THE SHADE OR INDOORS IF YOU'RE TRYING TO
COOL OFF.
THE HIGH PRESSURE RIDGE THAT WE ARE UNDER WILL BREAK DOWN COME
THIS WEEKEND, RETURNING US TO ZONAL FLOW THROUGH EARLY NEXT WEEK.
AFTERNOON HIGHS WILL TREND DOWNWARD, DROPPING INTO THE MID 70S AND
60S (VALLEYS AND HIGHER ELEVATIONS, RESPECTIVELY). A PATTERN
CHANGE IS ON THE HORIZON, THOUGH, WITH INCREASING LIKELIHOOD FOR
PRECIPITATION BY MID-NEXT WEEK. HOWEVER, CONFIDENCE REMAINS LOW ON
THE EXTENT OF THE IMPACTS.
-GIRALTE
AVIATION
VFR CONDITIONS WITH LIGHT WINDS PREVAIL FOR ALL TERMINALS THROUGH
MUCH OF THIS WEEK. THE ONLY EXCEPTION MAY BE KTRK BETWEEN 10-15Z
TOMORROW, WHERE THERE IS A 20% CHANCE OF PATCHY FG. DENSITY
ALTITUDE CONCERNS MAY ARISE DUE TO WARMING FOR W NV TERMINALS.
ADDITIONALLY, SLANTWISE VISIBILITY REDUCTIONS MAY ARISE DUE TO
MORNING INVERSIONS.
-GIRALTE
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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