767
FXUS65 KREV 040908
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
208 AM PDT TUE AUG 4 2026
KEY MESSAGES
* A PROLONGED PERIOD OF TRIPLE-DIGIT HEAT ACROSS WESTERN NEVADA
VALLEYS AND EASTERN CALIFORNIA BASINS PREVAILS THROUGH NEXT
WEEKEND.
* SMOKE AND HAZE FROM REGIONAL WILDFIRES WILL BRING IMPACTS TO AIR
QUALITY, PARTICULARLY ACROSS NORTHEASTERN CALIFORNIA AND
NORTHWESTERN NEVADA.
* DRY CONDITIONS WILL PERSIST THIS WEEK, WITH LOW-END
PRECIPITATION CHANCES FOR MONO AND MINERAL COUNTIES THIS
WEEKEND.
DISCUSSION
SMOKY SKIES WILL BE WITH US ONCE AGAIN TODAY, WITH THE HIGHER
CONCENTRATIONS IN AREAS ALONG THE OREGON BORDER AND OVER THE BASIN
AND RANGE. WINDS WILL BE LIGHTER AS WELL, WHICH WILL WORK TO KEEP
THE BULK OF THE SMOKE NORTH OF THE OREGON BORDER, BUT WILL ALSO
OFFER LESS MIXING TO SCOUR OUT THE HAZE.
HEAT IS HERE FOR THE WEEK, WITH THE HEAVILY ADVERTISED TRIPLE-DIGIT
TEMPERATURES REESTABLISHING ACROSS THE AREA. THE RIDGING LOOKS TO
AMPLIFY INTO THE WEEK, WHICH OFFERS INSIGHTS INTO WHY THE HEAT WILL
INTENSIFY BY MIDWEEK. THE HEAT ADVISORY FOR WEDNESDAY INTO
THURSDAY MORNING AND THE EXTREME HEAT WATCH STARTING THURSDAY
MORNING THROUGH SUNDAY MORNING REFLECTS THE INCOMING HOT SPELL.
REMEMBER ALL THE HEAT SAFETY CAUTIONS, LOOK BEFORE YOU LOCK A
VEHICLE WITH CHILDREN OR PETS INSIDE, AND CHECK ON VULNERABLE
POPULATIONS THROUGHOUT THE WEEK WITH THESE SOARING TEMPERATURES.
THE HEAT WILL PERSIST THROUGH THE WEEK AND INTO THE WEEKEND, WHEN
THE RIDGE WILL FLATTEN SLIGHTLY FROM ITS AMPLIFIED POSITION. THIS
WILL RESULT IN ANOTHER SUBTLE DOWNWARD NUDGE OF TEMPERATURES
STARTING SUNDAY. WE WILL BRING THAT DOWNWARD TREND WITH US INTO
THE NEW WEEK. THE NEW WEEK WILL ALSO FEATURE SOME MONSOONAL
MOISTURE SURGE FROM THE SOUTH THAT WILL KICK UP SOME SHOWERS FOR
MONO AND MINERAL COUNTIES, WITH CHANCES CURRENTLY RANGING 5-15%.
HRICH
AVIATION
* VFR CONDITIONS WITH WESTERLY GUSTS OF 15-20 KTS ACROSS THE
SIERRA AND NW GUSTS UP TO 15 KTS ACROSS NE CA AND W NV THIS
AFTERNOON. SMOKE AND HAZE FROM NEARBY FIRES MAY BRING PERIODS OF
REDUCED SLANTWISE VISIBILITY TO AREA TERMINALS THROUGH TUESDAY.
PROLONGED HEAT WEDNESDAY THROUGH SATURDAY WILL RESULT IN HIGH
DENSITY ALTITUDE CONCERNS AREAWIDE. HRICH/JUSTIN
REV WATCHES/WARNINGS/ADVISORIES
NV...HEAT ADVISORY FROM 8 AM WEDNESDAY TO 8 AM PDT THURSDAY NVZ001-
003>005.
EXTREME HEAT WATCH FROM THURSDAY MORNING THROUGH SUNDAY MORNING
NVZ001-003>005.
CA...HEAT ADVISORY FROM 8 AM WEDNESDAY TO 8 AM PDT THURSDAY CAZ070-
071.
EXTREME HEAT WATCH FROM THURSDAY MORNING THROUGH SUNDAY MORNING
CAZ070-071.
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