218
FXUS65 KVEF 181018
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
318 AM PDT WED MAR 18 2026
KEY MESSAGES
* HEAT HEADLINES GO INTO EFFECT TODAY AS AN UNPRECEDENTED MARCH
HEATWAVE BEGINS AND LASTS THROUGH THE WEEKEND.
DISCUSSION
THROUGH TUESDAY.
NO SIGNIFICANT CHANGES TO THE 7 DAY FORECAST WITH HEAT CONTINUING TO
BUILD OVER THE WESTERN US. ALL-TIME MARCH RECORDS ARE PRETTY MUCH
GUARANTEED TO FALL, AND FORECAST VALUES DURING THE PEAK OF THE
HEATWAVE ARE CLOSE TO ALL-TIME APRIL RECORDS. WHILE THESE VALUES ARE
COMMONPLACE DURING THE SUMMER, WE HAVE NEVER SEEN THIS TYPE OF HEAT
IN MARCH. WITH LITTLE ACCLIMATION OPPORTUNITIES, THESE TEMPERATURES
WILL CATCH SOME FOLKS OFF GUARD. EXTREME HEAT WARNINGS ARE IN EFFECT
FOR THE MOJAVE DESERT THROUGH SUNDAY, WITH HEAT ADVISORIES IN EFFECT
FOR THE OWENS VALLEY AND SOUTHERN GREAT BASIN THROUGH SATURDAY. BY
LATE WEEKEND AND EARLY NEXT WEEK, MODELS SHOW A WEAK SHORTWAVE
MOVING THROUGH, BRINGING TEMPERATURES DOWN SLIGHTLY. HOWEVER, THE
TREND FOR NEXT WEEK AS BEEN TOWARDS A STRONGER RIDGE, FAVORING A
CONTINUATION OF TEMPERATURES WELL ABOVE NORMAL.
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE
WINDS
WILL FOLLOW USUAL DAILY DIRECTIONAL PATTERNS WITH SPEEDS OF 8 KNOTS
OR LESS. THERE IS A VERY LOW PROBABILITY FOR GUSTS OF AROUND 12-15KT
DURING THE AFTERNOON, BUT THESE GUSTS WOULD BE SPORADIC AT MOST. VFR
CONDITIONS WITH MOSTLY CLEAR SKIES WILL PREVAIL. TEMPERATURES WILL
WARM THROUGH THE 90S THE NEXT FEW DAYS, AND THERE IS A 25% CHANCE
FOR TEMPERATURES TO REACH OR EXCEED 100 DEGREES FRIDAY.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...WINDS WILL FOLLOW THE
USUAL DAILY DIRECTIONAL PATTERNS WITH SPEEDS OF LESS THAN 10 KNOTS
THROUGHOUT THE FORECAST PERIOD. VFR CONDITIONS WITH CLEAR SKIES WILL
PREVAIL.
CLIMATE
NUMEROUS CLIMATE LOCATIONS HAVE A FORECAST HIGH
TEMPERATURE AND/OR FORECAST WARM LOW TEMPERATURE WITHIN 3 DEGREES OF
THE DAILY RECORD.
THE TABLE BELOW SHOWS THE DAILY RECORD MAXIMUM TEMPERATURE AND THE
YEAR THE RECORD WAS LAST SET. AN ASTERISK (*) DENOTES WHICH RECORDS
ARE IN JEOPARDY (WITHIN 3 DEGREES OF THE FORECAST).
MAX WED, MAR 18 THU, MAR 19 FRI, MAR 20 SAT, MAR 21
RECORD(YR) RECORD(YR) RECORD (YR) RECORD (YR)
LAS VEGAS 90(2017)* 90(2017)* 90(2004)* 92(2004)*
BISHOP 82(2007)* 82(2004)* 84(2004)* 84(2004)*
NEEDLES 95(2017)* 98(2017)* 97(2004)* 98(2004)*
DAGGETT 89(2017)* 89(2017)* 94(1997)* 92(2004)*
KINGMAN 83(2017)* 85(1907)* 89(2004)* 89(2004)*
DESERT ROCK 84(2017)* 85(1997)* 86(2004)* 87(2004)* DEATH
VALLEY 102(2007)* 99(2017)* 97(2004)* 101(2004)*
THE TABLE BELOW SHOWS THE DAILY RECORD WARM MINIMUM TEMPERATURE AND
THE YEAR THE RECORD WAS LAST SET. AN ASTERISK (*) DENOTES WHICH
RECORDS ARE IN JEOPARDY (WITHIN 3 DEGREES OF THE FORECAST).
WARM MIN WED, MAR 18 THU, MAR 19 FRI, MAR 20 SAT, MAR 21
RECORD(YR) RECORD(YR) RECORD (YR) RECORD (YR)
LAS VEGAS 65(2015)* 63(2017)* 68(2017)* 69(2017)*
BISHOP 49(2015) 48(2013)* 46(2013)* 47(1978)*
NEEDLES 70(1914) 68(1914) 69(2017)* 70(2017)*
DAGGETT 63(1974)* 61(2013)* 60(2017)* 59(1978)*
KINGMAN 54(1974)* 54(1953)* 54(1936)* 54(1978)*
DESERT ROCK 56(1994)* 53(2013)* 59(2017)* 58(2017)*
DEATH VALLEY 75(1916) 75(1916)* 73(2017)* 73(2017)*
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...WOODS
AVIATION...MELTZER
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