Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
NNSS Fire Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
Valid: Monday Jun 23 2025 to Thursday Jun 26 2025
Issued At: 0800 PST Mon Jun 23 2025
Forecaster: R Lantrip
.Forecast Summary...Temperatures will run a few degrees below normal today and tomorrow before climbing back to normal by mid-week. A ridge of high pressure will allow temperature to climb to above normal for the upcoming weekend. Conditions will remain dry through the period with minimum relative humidity dropping into the single digits each day, with moderate overnight recoveries. Winds will follow the standard summertime diurnal pattern.
Monday: Jun 23 2025
Weather: Partly cloudy.
Wind: Variable winds to 10 mph this morning, becoming southwest at 10 to 20 mph in the afternoon.
High Temperatures: High temperatures 69 to 76 on the mesas, 83 to 91 at the lower elevations, 87 in Mercury.
Relative Humidity:
15% to 20% this morning, 8% to 12% in the afternoon.
10% to 15% this morning, 6% to 8% in the afternoon.
Mixing Height: 14,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Tuesday: Jun 24 2025
Weather: Mostly sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 70 to 78 on the mesas, 84 to 92 at the lower elevations, 88 in Mercury.
Relative Humidity:
35% to 50% in the morning, 8% to 11% in the afternoon.
20% to 30% in the morning, 6% to 8% in the afternoon.
Mixing Height: 13,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Wednesday: Jun 25 2025
Weather: Sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 74 to 81 on the mesas, 87 to 96 at the lower elevations, 95 in Mercury.
Relative Humidity:
30% to 40% in the morning, 8% to 11% in the afternoon.
15% to 25% in the morning, 5% to 8% in the afternoon.
Mixing Height: 12,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Thursday: Jun 26 2025
Weather: Sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 77 to 85 on the mesas, 91 to 99 at the lower elevations, 95 in Mercury.
Relative Humidity:
25% to 35% in the morning, 8% to 11% in the afternoon.
15% to 20% in the morning, 5% to 8% in the afternoon.
Mixing Height: 12,500 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: Monday Jun 23 2025 to Thursday Jun 26 2025
Issued At: 0800 PST Mon Jun 23 2025
Forecaster: R Lantrip
.Forecast Summary...Temperatures will run a few degrees below normal today and tomorrow before climbing back to normal by mid-week. A ridge of high pressure will allow temperature to climb to above normal for the upcoming weekend. Conditions will remain dry through the period with minimum relative humidity dropping into the single digits each day, with moderate overnight recoveries. Winds will follow the standard summertime diurnal pattern.
Monday: Jun 23 2025
Weather: Partly cloudy.
Wind: Variable winds to 10 mph this morning, becoming southwest at 10 to 20 mph in the afternoon.
High Temperatures: High temperatures 69 to 76 on the mesas, 83 to 91 at the lower elevations, 87 in Mercury.
Relative Humidity:
15% to 20% this morning, 8% to 12% in the afternoon.
10% to 15% this morning, 6% to 8% in the afternoon.
Mixing Height: 14,000 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Tuesday: Jun 24 2025
Weather: Mostly sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 70 to 78 on the mesas, 84 to 92 at the lower elevations, 88 in Mercury.
Relative Humidity:
35% to 50% in the morning, 8% to 11% in the afternoon.
20% to 30% in the morning, 6% to 8% in the afternoon.
Mixing Height: 13,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Wednesday: Jun 25 2025
Weather: Sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 74 to 81 on the mesas, 87 to 96 at the lower elevations, 95 in Mercury.
Relative Humidity:
30% to 40% in the morning, 8% to 11% in the afternoon.
15% to 25% in the morning, 5% to 8% in the afternoon.
Mixing Height: 12,500 feet AGL.
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Thursday: Jun 26 2025
Weather: Sunny.
Wind: Southwest at 10 to 20 mph.
High Temperatures: High temperatures 77 to 85 on the mesas, 91 to 99 at the lower elevations, 95 in Mercury.
Relative Humidity:
25% to 35% in the morning, 8% to 11% in the afternoon.
15% to 20% in the morning, 5% to 8% in the afternoon.
Mixing Height: 12,500 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.