Next Generation Fire System (NGFS) - Experimental ; CIMSS

Date:	2025-08-18
Time:	16:26:17
Production Date and Time:	2025-08-18 16:31:02 UTC
Primary Instrument:	GOES-18 ABI
Wmo Spacecraft Id:	665
Location/orbit:	GEO
L1 File:	OR_ABI-L1b-RadC-M6C14_G18_s20252301626170_e20252301628543_c20252301629032.nc
L1 File(s) - Temporal	OR_ABI-L1b-RadC-M6C14_G18_s20252301621170_e20252301623543_c20252301624029.nc
Number Of Thermal Anomaly Alerts:	4

Basic Information
State/Province(s)	UT
Country/Countries	United States
County/Locality(s)	Millard County, UT
NWS WFO	Salt Lake City UT
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-08-18 16:26:54UTC
Radiative Center (Lat, Lon):	39.328888°, -112.625000°
Nearby Counties (meeting alert criteria):	Millard County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	155.86 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	314.21 K
Observed - Background BT (3.9 um)	8.71 K
BT Anomaly (3.9 um)	6.00 K
Maximum Observed - Clear RTM BT (3.9 um)	9.83 K
Maximum Observed BTD (3.9-10/11/12 um)	15.71 K
Observed - Background BTD (3.9-10/11/12 um)	10.08 K
BTD Anomaly (3.9-10/11/12 um)	13.27 K
Similar Pixel Count	3
BT Time Tendency (3.9 um)	7.80 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.01
Fraction of Surrounding Red Channel Pixels that are Brighter	1.00
Maximum Radiative Power	110.48 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	52.30°
Mean Solar Zenith Angle	48.60°
Mean Glint Angle	54.70°
Water Fraction	0.00
Total Pixel Area	19.60 km²
Latest Satellite Imagery:	IDs-NVne-UTnw_750_m NVs-UTsw-AZnw_750_m
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Basic Information
State/Province(s)	CO
Country/Countries	United States
County/Locality(s)	Dolores County, CO
NWS WFO	Grand Junction CO
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-08-18 16:26:54UTC
Radiative Center (Lat, Lon):	37.656666°, -108.148331°
Nearby Counties (meeting alert criteria):	Dolores County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	29.31 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk, Known Incident: Stoner Mesa (HIGH, tdiff=0.2145 days, Perimeter)
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	302.65 K
Observed - Background BT (3.9 um)	8.60 K
BT Anomaly (3.9 um)	4.82 K
Maximum Observed - Clear RTM BT (3.9 um)	9.64 K
Maximum Observed BTD (3.9-10/11/12 um)	14.98 K
Observed - Background BTD (3.9-10/11/12 um)	10.38 K
BTD Anomaly (3.9-10/11/12 um)	10.16 K
Similar Pixel Count	5
BT Time Tendency (3.9 um)	3.20 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.55
Fraction of Surrounding Red Channel Pixels that are Brighter	1.00
Maximum Radiative Power	29.31 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	53.40°
Mean Solar Zenith Angle	44.70°
Mean Glint Angle	51.20°
Water Fraction	0.00
Total Pixel Area	6.70 km²
Latest Satellite Imagery:	COsw-UTse-AZne-NMnw_750_m
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Basic Information
State/Province(s)	CA
Country/Countries	United States
County/Locality(s)	Santa Barbara County, CA
NWS WFO	Los Angeles/Oxnard CA
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-08-18 16:27:23UTC
Radiative Center (Lat, Lon):	34.635555°, -120.606392°
Nearby Counties (meeting alert criteria):	Santa Barbara County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	56.96 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	303.46 K
Observed - Background BT (3.9 um)	6.96 K
BT Anomaly (3.9 um)	4.52 K
Maximum Observed - Clear RTM BT (3.9 um)	7.72 K
Maximum Observed BTD (3.9-10/11/12 um)	12.43 K
Observed - Background BTD (3.9-10/11/12 um)	7.87 K
BTD Anomaly (3.9-10/11/12 um)	9.05 K
Similar Pixel Count	2
BT Time Tendency (3.9 um)	10.40 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.59
Fraction of Surrounding Red Channel Pixels that are Brighter	0.40
Maximum Radiative Power	31.91 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	44.10°
Mean Solar Zenith Angle	53.70°
Mean Glint Angle	52.90°
Water Fraction	0.00
Total Pixel Area	11.10 km²
Latest Satellite Imagery:	CAcentral_750_m CAs_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	2025-08-18 16:27:54UTC
Radiative Center (Lat, Lon):	28.879999°, -112.513885°
Nearby Counties (meeting alert criteria):	Hermosillo (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	29.22 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	307.33 K
Observed - Background BT (3.9 um)	7.64 K
BT Anomaly (3.9 um)	12.82 K
Maximum Observed - Clear RTM BT (3.9 um)	9.33 K
Maximum Observed BTD (3.9-10/11/12 um)	17.62 K
Observed - Background BTD (3.9-10/11/12 um)	7.09 K
BTD Anomaly (3.9-10/11/12 um)	9.19 K
Similar Pixel Count	21
BT Time Tendency (3.9 um)	1.40 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.98
Fraction of Surrounding Red Channel Pixels that are Brighter	0.47
Maximum Radiative Power	29.22 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	43.30°
Mean Solar Zenith Angle	46.00°
Mean Glint Angle	38.50°
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