Marine Weather and Tide Forecast for Parker Strip, AZ

DISCUSSION
High pressure will build over the Desert Southwest through the weekend with temperatures peaking on Sunday at 8 to 12 degrees above seasonal normals. "Major" HeatRisk will occur over portions of the region, with widespread "Moderate" elsewhere.
Extreme Heat Warning is in effect on Sunday (Father's Day) for valley locations of southeastern California, southern Nevada, and northwestern Arizona. This warning includes Death Valley National Park, western San Bernardino County, far southern Nye County, lower elevations of Clark County including Las Vegas, southern Mohave County, and the Colorado River Valley including the Lake Mead National Recreation Area. If planning to spend time outdoors this weekend, avoid the hottest parts of the day, bring plenty of water, and wear sunscreen.

Meanwhile, a dry southwesterly flow aloft continues as the region remains sandwiched between a trough over the eastern Pacific and the aforementioned ridge of high pressure. This will keep daily afternoon breezes in the forecast through Sunday.

On Monday, the eastern Pacific trough will begin to move east as the ridge becomes suppressed to the south. This will allow for southwest winds to increase even more with widespread breezy to windy conditions over much of the area. The strongest winds will remain over the western Mojave Desert where the probability of wind gusts over 40 mph stands around 50-70 percent. Will continue to monitor to see if wind headlines become necessary, but for now it appears that the strongest winds will remain over high terrain. The other main concern will be increasing fire weather danger with gusty southwest winds combined with very dry conditions will lead to near-critical to critical fire weather conditions. See the fire weather section below for more details.

High pressure will begin to rebuild Wednesday and Thursday with temperatures once again rising a few degrees, but another trough moving into the Pacific Northwest late next week could bring another round of gusty southwest winds along with cooler temperatures.

AVIATION
For Harry Reid
For the 00Z Forecast Package
The primary aviation concern continues to be gusty winds. South to southwest winds with gusts 20-25 kts will occur into this evening before diminishing to around 10 kts. Gusty southwest winds will return Sunday with gusts to around 20 kts in the afternoon. VFR conditions otherwise prevail, with passing high clouds around 25kft.
Temperatures today will be 100 degrees or greater through 04Z. High temperatures Sunday will exceed 100 degrees from 19z-04z with highs around 109 degrees.

For the rest of southern Nevada, northwest Arizona and southeast California
For the 00Z Forecast Package
Across the region, gusty south to southwest winds around 20 kts will prevail into this evening with winds diminishing overnight, generally less than 10 kts. Gusty southwest winds are expected again Sunday with most areas gusting to around 20-25 kts in the afternoon. VFR conditions prevail areawide, with rounds of high clouds with bases around 25kft.

FIRE WEATHER
Increasing southwest winds combined with very dry conditions will lead to near-critical to critical fire weather concerns Monday. Minimum RH 3-8 percent combined with southwest winds 15-25 mph with gusts 30-35 mph are expected. Overnight RH recoveries are expected to be between 10-15 percent. In addition, fuels across the region are approaching critical. A Fire Weather Watch has been issued from 19z to 03z Monday for Fire Zones 101, 102, 462, 464, 465, and 466.

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