Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
NNSS Fire Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
Valid: Friday Aug 29 2025 to Monday Sep 01 2025
Issued At: 0800 PST Fri Aug 29 2025
Forecaster: J Wood
.Forecast Summary...Just enough moisture in place for a slight chance of afternoon thunderstorms today. If they do form, they will favor the higher terrain of the northern Areas. We will continue to dry out this weekend ending the chance of thunderstorms. High temperatures will be on the increase along with decreasing RH values. Looking ahead to next week, monsoon moisture looks to return mid-week increasing the chance of thunderstorms.
Friday: Aug 29 2025
Weather: Sunny this morning becoming partly cloudy this afternoon with a slight chance of thunderstorms.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. Higher gusts near thunderstorms.
High Temperatures: 74 to 81 for the mesas, 88 to 95 at the lower elevations, 90 in Mercury.
Relative Humidity:
50% to 75% in the morning, 20% to 30% in the afternoon.
50% to 60% in the morning, 15% to 25% in the afternoon.
Mixing Height: 11,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 10%
Dry Lightning Probability: 5%
Saturday: Aug 30 2025
Weather: Sunny with a few afternoon clouds over the higher terrain.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 76 to 83 for the mesas, 90 to 98 at the lower elevations, 93 in Mercury.
Relative Humidity:
30% to 50% in the morning, 15% to 25% in the afternoon.
20% to 35% in the morning, 10% to 20% in the afternoon.
Mixing Height: 12,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Aug 31 2025
Weather: Sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 79 to 86 for the mesas, 93 to 101 at the lower elevations, 96 in Mercury.
Relative Humidity:
25% to 40% in the morning, 10% to 20% in the afternoon.
20% to 35% in the morning, 8% to 18% in the afternoon.
Mixing Height: 12,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Monday: Sep 01 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming south 10 to 25 mph in the afternoon.
High Temperatures: 80 to 87 for the mesas, 95 to 102 at the lower elevations, 97 in Mercury.
Relative Humidity:
20% to 35% in the morning, 10% to 20% in the afternoon.
15% to 30% in the morning, 7% to 15% in the afternoon.
Mixing Height: 12,000 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: Friday Aug 29 2025 to Monday Sep 01 2025
Issued At: 0800 PST Fri Aug 29 2025
Forecaster: J Wood
.Forecast Summary...Just enough moisture in place for a slight chance of afternoon thunderstorms today. If they do form, they will favor the higher terrain of the northern Areas. We will continue to dry out this weekend ending the chance of thunderstorms. High temperatures will be on the increase along with decreasing RH values. Looking ahead to next week, monsoon moisture looks to return mid-week increasing the chance of thunderstorms.
Friday: Aug 29 2025
Weather: Sunny this morning becoming partly cloudy this afternoon with a slight chance of thunderstorms.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. Higher gusts near thunderstorms.
High Temperatures: 74 to 81 for the mesas, 88 to 95 at the lower elevations, 90 in Mercury.
Relative Humidity:
50% to 75% in the morning, 20% to 30% in the afternoon.
50% to 60% in the morning, 15% to 25% in the afternoon.
Mixing Height: 11,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 10%
Dry Lightning Probability: 5%
Saturday: Aug 30 2025
Weather: Sunny with a few afternoon clouds over the higher terrain.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 76 to 83 for the mesas, 90 to 98 at the lower elevations, 93 in Mercury.
Relative Humidity:
30% to 50% in the morning, 15% to 25% in the afternoon.
20% to 35% in the morning, 10% to 20% in the afternoon.
Mixing Height: 12,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Aug 31 2025
Weather: Sunny.
Wind: Variable to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon.
High Temperatures: 79 to 86 for the mesas, 93 to 101 at the lower elevations, 96 in Mercury.
Relative Humidity:
25% to 40% in the morning, 10% to 20% in the afternoon.
20% to 35% in the morning, 8% to 18% in the afternoon.
Mixing Height: 12,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Monday: Sep 01 2025
Weather: Mostly sunny.
Wind: Variable to 10 mph in the morning becoming south 10 to 25 mph in the afternoon.
High Temperatures: 80 to 87 for the mesas, 95 to 102 at the lower elevations, 97 in Mercury.
Relative Humidity:
20% to 35% in the morning, 10% to 20% in the afternoon.
15% to 30% in the morning, 7% to 15% in the afternoon.
Mixing Height: 12,000 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.