Marine Weather and Tide Forecast for Furnace Creek, CA

DISCUSSION
Today through Tuesday.

The trough responsible for the windy conditions over the past few days will shift east today bringing decreasing winds, but warming temperatures as high pressure builds over the region. Elevated to critical fire weather conditions will still persist into this evening across northwest Arizona where a Red Flag Warning remains in place through 9 PM PDT/MST. See the FIRE WEATHER discussion below for more details.

High pressure will build through the remainder of the week with rising heights and temperatures, making the heat the main forecast concern through the weekend. Temperatures peak on Saturday and Sunday with highs 5 to 10 degrees above-normal for mid-June. The increase in daytime highs as well as overnight lows brings widespread Moderate (Level 2 of 4) Heat Risk to the region with areas of Major (Level 3 of 4) Heat Risk in many desert valleys including Death Valley, the Colorado River Valley, and the Las Vegas Valley between Friday and Sunday. This level of heat will affect anyone without access to sufficient cooling and hydration, especially those spending time outdoors.

The one potential caveat will be what happens with moisture from tropical systems Boris and Cristina which are currently located between 12 and 17 degrees north just off the Mexican and Central American coasts. The latest ensemble members show anomalous PWATs from about 200-225% pushing into southern and central Arizona with PWATs near 150-200% working at far north as the lower Colorado River Valley. We may end up seeing enough cloud cover to help suppress afternoon temperatures along with the possibility of isolated showers and thunderstorms across our far southern zones.


AVIATION
For Harry Reid
For the 00Z Forecast Package
South- southwesterly wind gusts will continue through the afternoon with directional variability between 160 and 230. Winds will favor the southwest as we move through the evening, with gusts falling off after sunset. On Wednesday, expect thermally-induced afternoon gusts from the south-southwest between 15 and 20 kts. No operationally significant cloud cover. Best chances of temperatures at or exceeding 100 degrees will be between 19 and 04Z, with a forecast high of 105.

For the rest of southern Nevada, northwest Arizona and southeast California
For the 00Z Forecast Package
Gusty south-southwest winds will continue for the Las Vegas Valley and Colorado River Valley TAF sites through sunset. Expect thermally-induced winds Wednesday afternoon with gust speeds between 15 and 20 kts. KDAG will have west winds between 20 and 25 kts through sunset.
Wednesday, expect breezy winds between 8 and 12 kts favoring diurnal directional trends. KBIH will be light and diurnal. No operationally significant cloud cover through the TAF period.


FIRE WEATHER
The trough responsible for gusty southwesterly winds shifts to the east today and the main focus for wind will turn to northwestern Arizona. Winds gusting to 40 mph combined with minimum humidity in the 5 to 15 percent range will yield elevated to critical fire weather conditions. Any fires that develop will likely spread rapidly. Therefore, the Red Flag Warning will remain in effect for all northwestern Arizona zones and the Nevada side of the Colorado River Valley through this evening. Conditions are expected to improve Wednesday onward as the trough exits and winds weaken.


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