Next Generation Fire System (NGFS) - Experimental ; CIMSS

Date:	2025-12-17
Time:	18:36:18
Production Date and Time:	2025-12-17 18:41:04 UTC
Primary Instrument:	GOES-18 ABI
Wmo Spacecraft Id:	665
Location/orbit:	GEO
L1 File:	OR_ABI-L1b-RadC-M6C14_G18_s20253511836183_e20253511838556_c20253511839055.nc
L1 File(s) - Temporal	OR_ABI-L1b-RadC-M6C14_G18_s20253511831183_e20253511833556_c20253511834040.nc
Number Of Thermal Anomaly Alerts:	4

Basic Information
State/Province(s)	MT
Country/Countries	United States
County/Locality(s)	Cascade County, MT
NWS WFO	Great Falls MT
Identification Method	Enhanced Contextual (Cloud)
Mean Object Date/Time	2025-12-17 18:36:24UTC
Radiative Center (Lat, Lon):	47.132221°, -111.128609°
Nearby Counties (meeting alert criteria):	Cascade County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	38.78 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Fire Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	294.01 K
Observed - Background BT (3.9 um)	17.24 K
BT Anomaly (3.9 um)	6.35 K
Maximum Observed - Clear RTM BT (3.9 um)	23.50 K
Maximum Observed BTD (3.9-10/11/12 um)	24.88 K
Observed - Background BTD (3.9-10/11/12 um)	17.10 K
BTD Anomaly (3.9-10/11/12 um)	4.79 K
Similar Pixel Count	0
BT Time Tendency (3.9 um)	5.10 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.26
Fraction of Surrounding Red Channel Pixels that are Brighter	0.47
Maximum Radiative Power	38.78 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	60.10°
Mean Solar Zenith Angle	71.10°
Mean Glint Angle	115.40°
Water Fraction	0.00
Total Pixel Area	8.00 km²
Latest Satellite Imagery:	IDn-MTw_750_m MTe_750_m
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Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Deschutes County, OR
NWS WFO	Pendleton OR
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-12-17 18:36:24UTC
Radiative Center (Lat, Lon):	43.802776°, -121.550003°
Nearby Counties (meeting alert criteria):	Deschutes County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	9.64 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Fire Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	280.33 K
Observed - Background BT (3.9 um)	6.30 K
BT Anomaly (3.9 um)	5.06 K
Maximum Observed - Clear RTM BT (3.9 um)	7.76 K
Maximum Observed BTD (3.9-10/11/12 um)	8.58 K
Observed - Background BTD (3.9-10/11/12 um)	6.16 K
BTD Anomaly (3.9-10/11/12 um)	5.98 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	2.40 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.67
Fraction of Surrounding Red Channel Pixels that are Brighter	0.97
Maximum Radiative Power	9.64 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	53.10°
Mean Solar Zenith Angle	69.90°
Mean Glint Angle	110.30°
Water Fraction	0.00
Total Pixel Area	6.70 km²
Latest Satellite Imagery:	ORsw-CAn_750_m WAw-ORw_750_m
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Basic Information
State/Province(s)	OR
Country/Countries	United States
County/Locality(s)	Jackson County, OR
NWS WFO	Medford OR
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-12-17 18:36:54UTC
Radiative Center (Lat, Lon):	42.190556°, -122.364166°
Nearby Counties (meeting alert criteria):	Jackson County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	27.36 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Fire Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	289.03 K
Observed - Background BT (3.9 um)	9.18 K
BT Anomaly (3.9 um)	4.61 K
Maximum Observed - Clear RTM BT (3.9 um)	17.37 K
Maximum Observed BTD (3.9-10/11/12 um)	16.04 K
Observed - Background BTD (3.9-10/11/12 um)	9.50 K
BTD Anomaly (3.9-10/11/12 um)	3.07 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	3.00 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.61
Fraction of Surrounding Red Channel Pixels that are Brighter	0.66
Maximum Radiative Power	15.84 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	51.20°
Mean Solar Zenith Angle	68.60°
Mean Glint Angle	107.60°
Water Fraction	0.00
Total Pixel Area	12.80 km²
Latest Satellite Imagery:	ORsw-CAn_750_m
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Basic Information
State/Province(s)	Sonora
Country/Countries	Mexico
County/Locality(s)	Hermosillo, Sonora
NWS WFO	N/A
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-12-17 18:37:55UTC
Radiative Center (Lat, Lon):	28.580278°, -111.508888°
Nearby Counties (meeting alert criteria):	Hermosillo (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	14.95 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Fire Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	310.25 K
Observed - Background BT (3.9 um)	2.28 K
BT Anomaly (3.9 um)	1.85 K
Maximum Observed - Clear RTM BT (3.9 um)	11.48 K
Maximum Observed BTD (3.9-10/11/12 um)	11.87 K
Observed - Background BTD (3.9-10/11/12 um)	2.73 K
BTD Anomaly (3.9-10/11/12 um)	3.53 K
Similar Pixel Count	23
BT Time Tendency (3.9 um)	1.00 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.49
Fraction of Surrounding Red Channel Pixels that are Brighter	0.94
Maximum Radiative Power	14.95 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	43.70°
Mean Solar Zenith Angle	53.00°
Mean Glint Angle	81.80°
Water Fraction	0.00
Total Pixel Area	5.50 km²
Latest Satellite Imagery:	None Available
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Next Generation Fire System (NGFS) - Experimental