Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
NNSS Fire Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
THIS IS THE LAST FIRE WEATHER FORECAST OF THE 2023 SEASON. FIRE WEATHER FORECASTS WILL RESUME NEXT YEAR.
Valid: Friday Sep 15 2023 to Monday Sep 18 2023
Issued At: 0600 PDT Fri Sep 15 2023
Forecaster: J Klepatzki
.Forecast Summary...Remnant moisture in the mountains will favor a slight chance in thunderstorms over the next couple of days. Otherwise, dry and afternoon breezy conditions are expected through the weekend as a weak high pressure has moved into the Northern Great Basin. By the middle of next week, a strong upper-level low will move through the area from the northwest. This will provide gusty winds and cool temperatures down below seasonal averages. Overnight recoveries will be good.
Friday: Sep 15 2023
Weather: Partly sunny with a slight chance of thunderstorms.
Wind: Variable winds at 5 to 15 mph in the morning becoming southeast at 10 to 20 mph in the afternoon
High Temperatures: 70 to 78 on the mesas, 84 to 92 at the lower elevations, 86 at Mercury
Relative Humidity: 50% to 80% in the morning, 15% to 25% in the afternoon.
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Saturday: Sep 16 2023
Weather: Partly sunny with a slight chance of thunderstorms
Wind: Variable up to 10 mph becoming southeast at 10 to 25 mph in the afternoon
High Temperatures: 70 to 78 on the mesas, 86 to 94 at the lower elevations, 88 at Mercury
Relative Humidity: 25% to 35% in the morning, 15% to 25% in the afternoon.
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Sunday: Sep 17 2023
Weather: Partly sunny with a slight chance of thunderstorms
Wind: Southeast winds at 10 to 25 mph
High Temperatures: 70 to 78 on the mesas, 86 to 94 at the lower elevations, 90 at Mercury
Relative Humidity: 30% to 40% in the morning, 15% to 25% in the afternoon
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Monday: Sep 18 2023
Weather: Partly sunny
Wind: Southwest winds at 10 to 25 mph
High Temperatures: 70 to 78 on the mesas, 83 to 91 at the lower elevations, 86 at Mercury
Relative Humidity: 30% to 40% in the morning, 15% to 25% in the afternoon
Haines Index: 3
Lightning Activity Level: 1
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
THIS IS THE LAST FIRE WEATHER FORECAST OF THE 2023 SEASON. FIRE WEATHER FORECASTS WILL RESUME NEXT YEAR.
Valid: Friday Sep 15 2023 to Monday Sep 18 2023
Issued At: 0600 PDT Fri Sep 15 2023
Forecaster: J Klepatzki
.Forecast Summary...Remnant moisture in the mountains will favor a slight chance in thunderstorms over the next couple of days. Otherwise, dry and afternoon breezy conditions are expected through the weekend as a weak high pressure has moved into the Northern Great Basin. By the middle of next week, a strong upper-level low will move through the area from the northwest. This will provide gusty winds and cool temperatures down below seasonal averages. Overnight recoveries will be good.
Friday: Sep 15 2023
Weather: Partly sunny with a slight chance of thunderstorms.
Wind: Variable winds at 5 to 15 mph in the morning becoming southeast at 10 to 20 mph in the afternoon
High Temperatures: 70 to 78 on the mesas, 84 to 92 at the lower elevations, 86 at Mercury
Relative Humidity: 50% to 80% in the morning, 15% to 25% in the afternoon.
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Saturday: Sep 16 2023
Weather: Partly sunny with a slight chance of thunderstorms
Wind: Variable up to 10 mph becoming southeast at 10 to 25 mph in the afternoon
High Temperatures: 70 to 78 on the mesas, 86 to 94 at the lower elevations, 88 at Mercury
Relative Humidity: 25% to 35% in the morning, 15% to 25% in the afternoon.
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Sunday: Sep 17 2023
Weather: Partly sunny with a slight chance of thunderstorms
Wind: Southeast winds at 10 to 25 mph
High Temperatures: 70 to 78 on the mesas, 86 to 94 at the lower elevations, 90 at Mercury
Relative Humidity: 30% to 40% in the morning, 15% to 25% in the afternoon
Haines Index: 4
Lightning Activity Level: 2
Dry Lightning Probability: 5%
Monday: Sep 18 2023
Weather: Partly sunny
Wind: Southwest winds at 10 to 25 mph
High Temperatures: 70 to 78 on the mesas, 83 to 91 at the lower elevations, 86 at Mercury
Relative Humidity: 30% to 40% in the morning, 15% to 25% in the afternoon
Haines Index: 3
Lightning Activity Level: 1
Dry Lightning Probability: 0%
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.