Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
NNSS Fire Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
Valid: Thursday Jul 03 2025 to Sunday Jul 06 2025
Issued At: 0700 PST Thu Jul 03 2025
Forecaster: J Wood
.Forecast Summary...Isolated thunderstorms will develop mid-day as an area of low pressure passes through the region. They will favor the higher terrain of the northern Areas. The main threats will be locally strong winds and brief heavy rain. Much drier air will overspread the region tonight. This will leave our area dry with seasonably hot afternoon highs through the weekend. It will be windy on Friday. Looking ahead to next week, a strong area of high pressure will set up over the Desert Southwest. It will produce very hot afternoon high temperatures. Monsoon moisture may try to move northward mid-week.
Thursday: Jul 03 2025
Weather: Partly cloudy with isolated afternoon thunderstorms.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 79 to 87 on the mesas, 93 to 100 at the lower elevations, 95 at Mercury.
Relative Humidity:
45% to 60% in the morning, 20% to 30% in the afternoon.
50% to 70% in the morning, 15% to 25% in the afternoon.
Mixing Height: 12,000 feet AGL.
Chance of Wetting Rains: 10%
Chance of Thunder: 20%
Dry Lightning Probability: 10%
Friday: Jul 04 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming southwest 15 to 25 mph with gusts to 35 mph in the afternoon.
High Temperatures: 78 to 86 on the mesas, 93 to 101 at the lower elevations, 96 at Mercury.
Relative Humidity:
20% to 35% in the morning, 10% to 20% in the afternoon.
25% to 40% in the morning, 10% to 20% in the afternoon.
Mixing Height: 10,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Saturday: Jul 05 2025
Weather: Sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 78 to 85 on the mesas, 93 to 100 at the lower elevations, 95 at Mercury.
Relative Humidity:
20% to 35% in the morning, 9% to 18% in the afternoon.
20% to 30% in the morning, 9% to 16% in the afternoon.
Mixing Height: 9,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Jul 06 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 80 to 87 on the mesas, 95 to 103 at the lower elevations, 98 at Mercury.
Relative Humidity:
20% to 30% in the morning, 9% to 18% in the afternoon.
15% to 25% in the morning, 8% to 15% in the afternoon.
Mixing Height: 11,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.
Air Resources Laboratory/Special Operations and Research Division
Valid: Thursday Jul 03 2025 to Sunday Jul 06 2025
Issued At: 0700 PST Thu Jul 03 2025
Forecaster: J Wood
.Forecast Summary...Isolated thunderstorms will develop mid-day as an area of low pressure passes through the region. They will favor the higher terrain of the northern Areas. The main threats will be locally strong winds and brief heavy rain. Much drier air will overspread the region tonight. This will leave our area dry with seasonably hot afternoon highs through the weekend. It will be windy on Friday. Looking ahead to next week, a strong area of high pressure will set up over the Desert Southwest. It will produce very hot afternoon high temperatures. Monsoon moisture may try to move northward mid-week.
Thursday: Jul 03 2025
Weather: Partly cloudy with isolated afternoon thunderstorms.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 79 to 87 on the mesas, 93 to 100 at the lower elevations, 95 at Mercury.
Relative Humidity:
45% to 60% in the morning, 20% to 30% in the afternoon.
50% to 70% in the morning, 15% to 25% in the afternoon.
Mixing Height: 12,000 feet AGL.
Chance of Wetting Rains: 10%
Chance of Thunder: 20%
Dry Lightning Probability: 10%
Friday: Jul 04 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming southwest 15 to 25 mph with gusts to 35 mph in the afternoon.
High Temperatures: 78 to 86 on the mesas, 93 to 101 at the lower elevations, 96 at Mercury.
Relative Humidity:
20% to 35% in the morning, 10% to 20% in the afternoon.
25% to 40% in the morning, 10% to 20% in the afternoon.
Mixing Height: 10,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Saturday: Jul 05 2025
Weather: Sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 78 to 85 on the mesas, 93 to 100 at the lower elevations, 95 at Mercury.
Relative Humidity:
20% to 35% in the morning, 9% to 18% in the afternoon.
20% to 30% in the morning, 9% to 16% in the afternoon.
Mixing Height: 9,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Jul 06 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 80 to 87 on the mesas, 95 to 103 at the lower elevations, 98 at Mercury.
Relative Humidity:
20% to 30% in the morning, 9% to 18% in the afternoon.
15% to 25% in the morning, 8% to 15% in the afternoon.
Mixing Height: 11,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.