Marine Weather and Tide Forecast for Parker Strip, AZ

DISCUSSION
through next Monday.

Well above normal temperatures will remain the primary weather concern through the upcoming week as strong ridging remains in place over the southwestern US. Heights will fall to around 594dm today and Tuesday, allowing temperatures to fall a few degrees compared to this past weekend. However, by the second half of the week, ensemble guidance indicates that the ridge will shift back to the northwest and be centered over southern Utah, allowing heights to increase to 596-598dm once again. Extreme heat warnings remain in effect across the CWA through Wednesday, and additional headlines may be required beyond Wednesday. The return of some monsoonal moisture may help to moderate temperatures late in the week, but considerable uncertainty remains regarding the strength of the monsoonal return flow.

Later in the week, as the ridge expands back to the northwest, a modest return of monsoonal moisture is indicated by ensemble guidance. Some increase in thunderstorm activity is expected over northwest Arizona by Thursday before gradually spreading northwest and west into far southern and eastern Nevada by the weekend. As mentioned above, this may help to moderate afternoon temperatures in locations that do see thunderstorm activity, although the increased moisture may also result in increased cloud cover, which could keep overnight temperatures elevated. With the ridge center shifting into southern Utah, upper-level northwest flow could also transport smoke from wildfires in central Utah into our area.

AVIATION
For Harry Reid
For the 18Z Forecast Package
Winds through the forecast period will generally remain south- southwesterly. Winds of 12-15KT with gusts to around 25KT will occur, with winds becoming lighter and less gusty after sunset. VFR conditions with clear skies will prevail, with temperatures expected to exceed 100F today between 17Z-05Z, with a high of 113F. A similar pattern returns for Tuesday with light morning winds becoming gusty from the south-southwest after about 19Z.

For the rest of southern Nevada, northwest Arizona and southeast California
For the 18Z Forecast Package
Winds will become southwesterly with gusts around 20-25KT this afternoon across most of the region. These gusts will persist through sunset before diminishing. Exceptions include the northern Owens Valley where winds will remain under 10KT and be mainly from the north, the western Mojave Desert/KDAG where westerly winds persist, and along the Lower Colorado River Valley from around KIFP to KEED where a second round of gusty southerly to southwesterly winds is expected late in the period. VFR conditions with mostly clear skies will continue.

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 MON, AUG 3 TUE, AUG 4 WED, AUG 5 THU, AUG 6 Record(Yr) Record(Yr) Record(Yr) Record(Yr)
Las Vegas 116(1979)* 114(1979)* 113(2024)* 114(2024)* Bishop 106(2020)* 105(2020)* 105(2024)* 106(2024)* Needles 119(1969) 121(2021) 119(2019) 118(2018)
Daggett 112(1992)* 114(2021)* 114(1998)* 114(1997)
Kingman 105(2024)* 107(2021) 107(2019) 109(1920)
Desert Rock 108(1979)* 109(2021)* 108(2024)* 109(2024)* Death Valley 127(1993) 126(2021) 125(1936)* 127(2017)

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 MON, AUG 3 TUE, AUG 4 WED, AUG 5 THU, AUG 6 Record(Yr) Record(Yr) Record(Yr) Record(Yr)
Las Vegas 89(2024)* 89(2024)* 89(2024)* 91(2024)* Bishop 66(1995) 75(1961) 68(1971) 69(1979)
Needles 93(1969)* 94(1908) 94(2024) 94(2021)
Daggett 85(1980)* 82(1974)* 83(1998)* 84(1983)* Kingman 80(1946)* 78(2024)* 78(2024)* 79(2019)* Desert Rock 79(2016)* 79(2018)* 81(2015)* 82(1994)* Death Valley 100(1921)* 100(1925) 100(1915)* 99(2024)*

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