Good morning,
Our latest intel from the Fawn Fire is infrared mapping flights from 9:40pm on September 23. The white line is where fire was at noon on September 23. Yellow line is 1pm, first red line is 6pm, and outermost line from 9:40pm.
Here are still images of the same information from the video.
Looking north.
Looking northwest over Bear Mountain Road.
Northeast corner of the fire, Bear Mountain on the right.
Looking over fire to the southwest. You can see how the ridge was exposed to north winds and fire spread aggressively in the morning. White line is where fire was at noon, 9/23.
Looking east over I-5. Fire was backing downhill to west at 9:40 pm on 9/23. Red is intense heat, yellow areas are cooling off.
Looking east over southern end of fire.
Spot forecast from last night:
https://www.weather.gov/spot/php/forecast.php?snumunum=2118602.1&lat=40.75233929107472&lon=-123.13071507540961&z=8 3
SPOT FORECAST for FAWN INC…CAL FIRE
National Weather Service SACRAMENTO CA
621 PM PDT Thu Sep 23 2021Forecast is based on forecast start time of 2100 PDT on September 23.
If conditions become unrepresentative…contact the National Weather
Service..DISCUSSION…
Hot and dry weather conditions will continue over the fire site through
Friday as Eastern Pacific high pressure builds over Norcal. During Friday
afternoon northeast winds will begin to diminish and turn southerly as
high pressure moves over the fire site. Slight cooling and slight rise in
humidity expected on Saturday as high pressure weakens slightly over the
region..REST OF TONIGHT…
Sky/weather…Areas of smoke.
Min temperature…69-74.
Max humidity…34-39 percent.
Wind (20 ft)…
Slope/valley…North to northeast winds 5 to 11 mph.
Ridgetop…Northeast 15 to 23 mph.
Mixing height…Lowering to 200-500 ft AGL.
Transport winds…Northeast 9 to 15 mph.
CWR…0 percent.
LAL…1..FRIDAY…
Sky/weather…Sunny.
Max temperature…92-97.
Min humidity…7-12 percent.
Wind (20 ft)…
Slope/valley…Northeast winds 7 to 12 mph early in the morning
decreasing to up to 6 mph by 1100 and then shifting
to the south up to 6 mph after 1300-1400.
Ridgetop…Northeast 10 to 15 mph becoming south up to 6 mph
after 1300.
Mixing height…Rising to 4000 ft AGL in the afternoon.
Transport winds…Northeast 6 to 12 mph becoming south up to 6 mph
in the afternoon.
CWR…0 percent.
LAL…1..FRIDAY NIGHT…
Sky/weather…Mostly clear.
Min temperature…64-69.
Max humidity…39-44 percent.
Wind (20 ft)…
Slope/valley…South winds up to 7 mph shifting to the northeast
up to 5 mph after midnight.
Ridgetop…Southeast to south up to 6 mph.
Mixing height…Lowering to 0-100 ft AGL.
Transport winds…South up to 5 mph early in the evening becoming
northeast up to 5 mph after 2100-2200.
CWR…0 percent.
LAL…1..SATURDAY…
Sky/weather…Sunny.
Max temperature…87-92.
Min humidity…13-18 percent.
Wind (20 ft)…
Slope/valley…Northeast winds 4 to 8 mph shifting to the
south up to 7 mph after 1000-1100.
Ridgetop…Southeast to south up to 7 mph.
Mixing height…Rising to 4000 ft AGL in the afternoon.
Transport winds…Northeast up to 4 mph becoming south up to 7 mph
after 1000-1100.
CWR…0 percent.
LAL…1.$$
Forecaster…JM
Requested by…Aaron Williams
Type of request…WILDFIRE
.TAG 2118602.1/STO
.DELDT 09/23/21