Next Generation Fire System (NGFS) - Experimental ; CIMSS

Date:	2026-07-27
Time:	18:00:29
Production Date and Time:	2026-07-27 18:01:09 UTC
Primary Instrument:	GOES-18 ABI
Wmo Spacecraft Id:	665
Location/orbit:	GEO
L1 File:	OR_ABI-L1b-RadM1-M6C14_G18_s20262081800292_e20262081800349_c20262081800402.nc
L1 File(s) - Temporal	NONE
Number Of Thermal Anomaly Notifications:	9

Possible Wildfire

Basic Information
State/Province(s)	WA
Country/Countries	United States
County/Locality(s)	Okanogan County, WA
NWS WFO	Spokane WA
Identification Method	Enhanced Contextual (Cloud)
Mean Object Date/Time	2026-07-27 18:00:31UTC
Radiative Center (Lat, Lon):	48.698334°, -119.703056°
Nearby Counties (meeting notification criteria):	Okanogan County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	915.14 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: SINLAHEKIN (HIGH, tdiff=0.50792 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	334.66 K
Observed - Background BT (3.9 um)	30.42 K
BT Anomaly (3.9 um)	12.24 K
Maximum Observed - Clear RTM BT (3.9 um)	36.14 K
Maximum Observed BTD (3.9-10/11/12 um)	46.26 K
Observed - Background BTD (3.9-10/11/12 um)	30.67 K
BTD Anomaly (3.9-10/11/12 um)	12.30 K
Similar Pixel Count	0
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.71
Fraction of Surrounding Red Channel Pixels that are Brighter	1.00
Maximum Radiative Power	264.86 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	58.70°
Mean Solar Zenith Angle	38.40°
Mean Glint Angle	74.70°
Water Fraction	0.00
Total Pixel Area	30.80 km²
Latest Satellite Imagery:	WAw-ORw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	WA
Country/Countries	United States
County/Locality(s)	Okanogan County, WA
NWS WFO	Spokane WA
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:31UTC
Radiative Center (Lat, Lon):	48.274723°, -119.164444°
Nearby Counties (meeting notification criteria):	Okanogan County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	130.26 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: Kaiser Canyon (HIGH, tdiff=0.27605 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	319.02 K
Observed - Background BT (3.9 um)	19.14 K
BT Anomaly (3.9 um)	8.19 K
Maximum Observed - Clear RTM BT (3.9 um)	17.91 K
Maximum Observed BTD (3.9-10/11/12 um)	29.66 K
Observed - Background BTD (3.9-10/11/12 um)	18.78 K
BTD Anomaly (3.9-10/11/12 um)	14.80 K
Similar Pixel Count	4
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.35
Fraction of Surrounding Red Channel Pixels that are Brighter	0.61
Maximum Radiative Power	130.26 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	58.40°
Mean Solar Zenith Angle	37.80°
Mean Glint Angle	73.90°
Water Fraction	0.00
Total Pixel Area	7.60 km²
Latest Satellite Imagery:	WAw-ORw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	MT
Country/Countries	United States
County/Locality(s)	Flathead County, MT
NWS WFO	Missoula MT
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:32UTC
Radiative Center (Lat, Lon):	47.828335°, -113.250832°
Nearby Counties (meeting notification criteria):	Flathead County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	55.08 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: Silvertip (HIGH, tdiff=0.76149 days, Point)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	308.13 K
Observed - Background BT (3.9 um)	11.42 K
BT Anomaly (3.9 um)	6.54 K
Maximum Observed - Clear RTM BT (3.9 um)	13.81 K
Maximum Observed BTD (3.9-10/11/12 um)	17.48 K
Observed - Background BTD (3.9-10/11/12 um)	11.50 K
BTD Anomaly (3.9-10/11/12 um)	14.78 K
Similar Pixel Count	1
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.49
Fraction of Surrounding Red Channel Pixels that are Brighter	1.00
Maximum Radiative Power	55.08 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	59.90°
Mean Solar Zenith Angle	34.60°
Mean Glint Angle	73.70°
Water Fraction	0.00
Total Pixel Area	8.00 km²
Latest Satellite Imagery:	IDn-MTw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Jefferson County, OR
NWS WFO	Pendleton OR
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:31UTC
Radiative Center (Lat, Lon):	44.661667°, -121.368332°
Nearby Counties (meeting notification criteria):	Jefferson County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	130.76 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: Bench (HIGH, tdiff=0.60532 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	327.01 K
Observed - Background BT (3.9 um)	17.16 K
BT Anomaly (3.9 um)	8.52 K
Maximum Observed - Clear RTM BT (3.9 um)	23.17 K
Maximum Observed BTD (3.9-10/11/12 um)	28.88 K
Observed - Background BTD (3.9-10/11/12 um)	18.13 K
BTD Anomaly (3.9-10/11/12 um)	9.86 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.35
Fraction of Surrounding Red Channel Pixels that are Brighter	0.45
Maximum Radiative Power	130.76 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	54.10°
Mean Solar Zenith Angle	37.00°
Mean Glint Angle	67.50°
Water Fraction	0.00
Total Pixel Area	6.80 km²
Latest Satellite Imagery:	ORsw-CAn_750_m WAw-ORw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Crook County, OR
NWS WFO	Pendleton OR
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:31UTC
Radiative Center (Lat, Lon):	44.467777°, -120.698608°
Nearby Counties (meeting notification criteria):	Crook County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	913.25 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: 0611 GREEN MOUNTAIN (HIGH, tdiff=1.2272 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	319.53 K
Observed - Background BT (3.9 um)	19.07 K
BT Anomaly (3.9 um)	10.90 K
Maximum Observed - Clear RTM BT (3.9 um)	16.00 K
Maximum Observed BTD (3.9-10/11/12 um)	26.58 K
Observed - Background BTD (3.9-10/11/12 um)	18.85 K
BTD Anomaly (3.9-10/11/12 um)	16.12 K
Similar Pixel Count	7
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.31
Fraction of Surrounding Red Channel Pixels that are Brighter	0.41
Maximum Radiative Power	264.84 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	54.10°
Mean Solar Zenith Angle	36.50°
Mean Glint Angle	67.10°
Water Fraction	0.00
Total Pixel Area	34.10 km²
Latest Satellite Imagery:	ORsw-CAn_750_m WAw-ORw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Baker County, OR
NWS WFO	Boise ID
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:35UTC
Radiative Center (Lat, Lon):	44.515556°, -117.309166°
Nearby Counties (meeting notification criteria):	Baker County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	412.01 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: FOX (HIGH, tdiff=0.31932 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	331.46 K
Observed - Background BT (3.9 um)	18.89 K
BT Anomaly (3.9 um)	7.47 K
Maximum Observed - Clear RTM BT (3.9 um)	19.84 K
Maximum Observed BTD (3.9-10/11/12 um)	28.35 K
Observed - Background BTD (3.9-10/11/12 um)	19.09 K
BTD Anomaly (3.9-10/11/12 um)	8.79 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.40
Fraction of Surrounding Red Channel Pixels that are Brighter	0.87
Maximum Radiative Power	187.23 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	55.20°
Mean Solar Zenith Angle	34.50°
Mean Glint Angle	66.90°
Water Fraction	0.00
Total Pixel Area	21.00 km²
Latest Satellite Imagery:	IDn-MTw_750_m IDs-NVne-UTnw_750_m ORsw-CAn_750_m WAw-ORw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Harney County, OR
NWS WFO	Boise ID
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:34UTC
Radiative Center (Lat, Lon):	43.656113°, -119.087776°
Nearby Counties (meeting notification criteria):	Harney County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	225.81 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk, Known Incident: Second Flat (HIGH, tdiff=0.32387 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	330.79 K
Observed - Background BT (3.9 um)	19.28 K
BT Anomaly (3.9 um)	12.76 K
Maximum Observed - Clear RTM BT (3.9 um)	23.88 K
Maximum Observed BTD (3.9-10/11/12 um)	28.28 K
Observed - Background BTD (3.9-10/11/12 um)	20.18 K
BTD Anomaly (3.9-10/11/12 um)	28.45 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.26
Fraction of Surrounding Red Channel Pixels that are Brighter	0.55
Maximum Radiative Power	145.59 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	53.80°
Mean Solar Zenith Angle	35.00°
Mean Glint Angle	65.40°
Water Fraction	0.00
Total Pixel Area	13.50 km²
Latest Satellite Imagery:	IDs-NVne-UTnw_750_m ORsw-CAn_750_m
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Possible Wildfire

Basic Information
State/Province(s)	ID
Country/Countries	United States
County/Locality(s)	Owyhee County, ID
NWS WFO	Boise ID
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:35UTC
Radiative Center (Lat, Lon):	42.770000°, -116.885277°
Nearby Counties (meeting notification criteria):	Owyhee County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	155.20 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Elevated Fire Risk (NWS/SPC), Known Incident: BIG GRASS (HIGH, tdiff=0.716 days, Perimeter)
Event Priority Ranking	3
Maximum Observed BT (3.9 um)	324.06 K
Observed - Background BT (3.9 um)	17.47 K
BT Anomaly (3.9 um)	6.23 K
Maximum Observed - Clear RTM BT (3.9 um)	17.24 K
Maximum Observed BTD (3.9-10/11/12 um)	28.35 K
Observed - Background BTD (3.9-10/11/12 um)	18.10 K
BTD Anomaly (3.9-10/11/12 um)	6.96 K
Similar Pixel Count	3
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.26
Fraction of Surrounding Red Channel Pixels that are Brighter	0.57
Maximum Radiative Power	155.20 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	53.70°
Mean Solar Zenith Angle	33.20°
Mean Glint Angle	63.80°
Water Fraction	0.00
Total Pixel Area	6.80 km²
Latest Satellite Imagery:	IDs-NVne-UTnw_750_m
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Possible Wildfire

Basic Information
State/Province(s)	NV
Country/Countries	United States
County/Locality(s)	Churchill County, NV
NWS WFO	Reno NV
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2026-07-27 18:00:35UTC
Radiative Center (Lat, Lon):	39.679722°, -117.511948°
Nearby Counties (meeting notification criteria):	Churchill County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	205.02 MW
Map:
Additional Information
Notification Status	New Feature
Type of Event	Nominal Fire Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	332.79 K
Observed - Background BT (3.9 um)	14.67 K
BT Anomaly (3.9 um)	10.46 K
Maximum Observed - Clear RTM BT (3.9 um)	21.31 K
Maximum Observed BTD (3.9-10/11/12 um)	25.11 K
Observed - Background BTD (3.9-10/11/12 um)	15.10 K
BTD Anomaly (3.9-10/11/12 um)	25.95 K
Similar Pixel Count	4
BT Time Tendency (3.9 um)	-999.00 K
Image Interval	-999.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.26
Fraction of Surrounding Red Channel Pixels that are Brighter	0.99
Maximum Radiative Power	111.15 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	50.40°
Mean Solar Zenith Angle	31.90°
Mean Glint Angle	58.00°
Water Fraction	0.00
Total Pixel Area	12.60 km²
Latest Satellite Imagery:	CAcentral_750_m IDs-NVne-UTnw_750_m NVs-UTsw-AZnw_750_m ORsw-CAn_750_m
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Next Generation Fire System (NGFS) - Experimental

Wildfire Notification Report

Possible Wildfire

Possible Wildfire

Possible Wildfire

Possible Wildfire

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Possible Wildfire

Possible Wildfire