DISCUSSION
Today through Saturday.

Yesterday, 6 locations experienced record heat, with daily maximum temperatures broken or tied in Las Vegas, Desert Rock, Bishop, Death Valley, Barstow-Daggett, and Kingman. Daily records will continue to fall through the remainder of the weekend and start of next week along with the potential for a few climate sites to approach - and even reach - their all-time records. As mentioned in the previous discussion, very dry conditions will continue to allow overnight temperatures to cool enough to prevent many warm low records, though a few remain in jeopardy. Details can be found in the CLIMATE section below.

All locations in our forecast area have a heat-related headline, with Heat Advisories in place for the eastern Sierra slopes [Inyo], White Mountains [Inyo], Sheep Range [Clark], and Spring Mountains [Clark] and Excessive Heat Warnings in place for the remainder of the area. In coordination with neighboring offices, all heat headlines have been extended to include Thursday. HeatRisk is on a scale from 0 to 4 and highlights heat as it pertains to impacts to people and infrastructure. The entire region will range from Major (Level 3) to Extreme (Level 4) through at least Thursday. When the body is unable to cool down properly, it wears down and eventually struggles to protect itself from the heat. For this reason, heat impacts will continue to worsen as we move through this heat wave.
We encourage you to check up on loved ones - especially those who are particularly vulnerable to the heat. Populations sensitive to heat may include, but are not limited to: those experiencing homelessness, elderly people, pregnant people, children, and pets.
Never leave a child or a pet in a car without air conditioning. With this level of heat, simply rolling down the windows will not be sufficient. Additionally, be careful of pavement burns. It's best to walk your dogs in the early morning hours or after sunset when the pavement is coolest.

Uncertainty continues regarding the timing and the amount of monsoonal moisture to move northward into our forecast area.
Ensemble means indicate that the strong area of high pressure overhead will slowly meander eastward toward the Four Corners mid-to- late week, which will set up a favorable flow for moisture to surge up the Colorado River Valley. Slight chances of precipitation exist across northwestern Arizona, far southern Nevada, and southeastern California next weekend.


AVIATION
For Harry Reid...Variable winds with speeds less than 7 knots expected for much of the morning and early afternoon period.
There are indications that a push of northwest (300-330 degrees)
winds will develop after 21z with speeds around 7-9 knots and potential gusts up to 12 knots. Winds are then forecast to shift more west to northwest (260-300 degrees) after 03z with speeds around 8 knots. Temperatures are expected to be at or above 100 degrees from 16z through 06z and peak around 117 degrees from 21z to 02z.

For the rest of southern Nevada, northwest Arizona and southeast California...All TAF sites are expected to remain under 10 knots through the afternoon and early evening with the exception of KDAG where a push of westerly winds up to 20 knots are expected after 01z this evening. There will also be some gusty northwest winds affecting potions of Lincoln and northern Mohave County this afternoon with gusts to around 20 knots. Very hot temperatures again today with most areas seeing highs between 110 and 120 degrees.
Death Valley will top out between 125 and 130 degrees.


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 SUN, JUL 7 MON, JUL 8 TUE, JUL 9 WED, JUL 10 Record(Yr) Record(Yr) Record(Yr) Record(Yr)

Las Vegas 116(2017)* 114(2021)* 116(2021)* 117(2021)* Bishop 107(2021)* 109(2021)* 108(2021)* 111(2021)* Needles 122(2017)* 120(2017)* 120(2021)* 122(2021)* Daggett 116(1989)* 114(2021)* 113(2021) 118(2021)* Kingman 112(2017)* 108(2017)* 111(2021)* 111(2021)* Desert Rock 112(2017)* 108(2017)* 111(2021)* 111(2021)* Death Valley 129(2007)* 128(1913)* 130(2021)* 134(1913)

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 SUN, JUL 7 MON, JUL 8 TUE, JUL 9 WED, JUL 10 Record(Yr) Record(Yr) Record(Yr) Record(Yr)

Las Vegas 93(2018) 92(2017)* 93(2021)* 94(2021)
Bishop 72(2014) 70(1991)* 72(1975) 71(1985)
Needles 95(1942) 95(2018) 95(2021) 98(2021)
Daggett 80(2018)* 84(2021)* 85(2017)* 88(2021)
Kingman 80(1917) 84(2014) 82(2017)* 79(1913)* Desert Rock 82(1981) 81(2021) 86(1985) 82(2021)
Death Valley 101(2021)* 105(1921) 104(2021) 100(1927)*


SPOTTER INFORMATION STATEMENT
Spotters are encouraged to report any significant weather or impacts according to standard operating procedures.