Next Generation Fire System (NGFS) - Experimental ; CIMSS

Date:	2025-05-29
Time:	17:46:17
Production Date and Time:	2025-05-29 17:50:57 UTC
Primary Instrument:	GOES-18 ABI
Wmo Spacecraft Id:	665
Location/orbit:	GEO
L1 File:	OR_ABI-L1b-RadC-M6C14_G18_s20251491746177_e20251491748550_c20251491749053.nc
L1 File(s) - Temporal	OR_ABI-L1b-RadC-M6C14_G18_s20251491741177_e20251491743550_c20251491744026.nc
Number Of Thermal Anomaly Alerts:	4

Basic Information
State/Province(s)	UT
Country/Countries	United States
County/Locality(s)	Box Elder County, UT
NWS WFO	Salt Lake City UT
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-05-29 17:46:54UTC
Radiative Center (Lat, Lon):	41.796665°, -112.015556°
Nearby Counties (meeting alert criteria):	Box Elder County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	10.72 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	309.75 K
Observed - Background BT (3.9 um)	2.35 K
BT Anomaly (3.9 um)	1.33 K
Maximum Observed - Clear RTM BT (3.9 um)	12.85 K
Maximum Observed BTD (3.9-10/11/12 um)	13.03 K
Observed - Background BTD (3.9-10/11/12 um)	2.20 K
BTD Anomaly (3.9-10/11/12 um)	3.29 K
Similar Pixel Count	25
BT Time Tendency (3.9 um)	0.70 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.66
Fraction of Surrounding Red Channel Pixels that are Brighter	1.00
Maximum Radiative Power	10.72 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	54.90°
Mean Solar Zenith Angle	29.00°
Mean Glint Angle	60.60°
Water Fraction	0.00
Total Pixel Area	7.00 km²
Latest Satellite Imagery:	IDs-NVne-UTnw_750_m
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Basic Information
State/Province(s)	CA
Country/Countries	United States
County/Locality(s)	Fresno County, CA
NWS WFO	Hanford CA
Identification Method	Enhanced Contextual (Clear)
Mean Object Date/Time	2025-05-29 17:46:53UTC
Radiative Center (Lat, Lon):	36.949722°, -119.676392°
Nearby Counties (meeting alert criteria):	Fresno County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	20.65 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Nominal Risk
Event Priority Ranking	4
Maximum Observed BT (3.9 um)	314.90 K
Observed - Background BT (3.9 um)	4.89 K
BT Anomaly (3.9 um)	2.81 K
Maximum Observed - Clear RTM BT (3.9 um)	11.34 K
Maximum Observed BTD (3.9-10/11/12 um)	14.77 K
Observed - Background BTD (3.9-10/11/12 um)	4.70 K
BTD Anomaly (3.9-10/11/12 um)	5.74 K
Similar Pixel Count	17
BT Time Tendency (3.9 um)	3.60 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.62
Fraction of Surrounding Red Channel Pixels that are Brighter	0.71
Maximum Radiative Power	20.65 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	46.80°
Mean Solar Zenith Angle	31.90°
Mean Glint Angle	50.80°
Water Fraction	0.00
Total Pixel Area	5.80 km²
Latest Satellite Imagery:	CAcentral_750_m CAs_750_m NVs-UTsw-AZnw_750_m
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Basic Information
State/Province(s)	NV
Country/Countries	United States
County/Locality(s)	Clark County, NV
NWS WFO	Las Vegas NV
Identification Method	Enhanced Contextual (Cloud)
Mean Object Date/Time	2025-05-29 17:47:24UTC
Radiative Center (Lat, Lon):	35.796665°, -114.987778°
Nearby Counties (meeting alert criteria):	Clark County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	506.73 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Solar panel (database + spectral)
Event Priority Ranking	5
Maximum Observed BT (3.9 um)	340.30 K
Observed - Background BT (3.9 um)	19.06 K
BT Anomaly (3.9 um)	11.44 K
Maximum Observed - Clear RTM BT (3.9 um)	23.52 K
Maximum Observed BTD (3.9-10/11/12 um)	27.66 K
Observed - Background BTD (3.9-10/11/12 um)	18.73 K
BTD Anomaly (3.9-10/11/12 um)	24.57 K
Similar Pixel Count	0
BT Time Tendency (3.9 um)	15.90 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	0.00
Maximum Radiative Power	156.85 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	47.90°
Mean Solar Zenith Angle	28.00°
Mean Glint Angle	48.60°
Water Fraction	0.00
Total Pixel Area	23.90 km²
Latest Satellite Imagery:	CAs_750_m NVs-UTsw-AZnw_750_m
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Basic Information
State/Province(s)	CA
Country/Countries	United States
County/Locality(s)	Riverside County, CA
NWS WFO	Phoenix AZ
Identification Method	Enhanced Contextual (Cloud)
Mean Object Date/Time	2025-05-29 17:47:24UTC
Radiative Center (Lat, Lon):	33.591110°, -114.748886°
Nearby Counties (meeting alert criteria):	Riverside County (0.00 km)
Total Radiative Power Anomaly	n/a
Total Radiative Power	220.88 MW
Map:
Additional Information
Alert Status	New Feature
Type of Event	Solar panel (database + spectral)
Event Priority Ranking	5
Maximum Observed BT (3.9 um)	346.66 K
Observed - Background BT (3.9 um)	24.80 K
BT Anomaly (3.9 um)	14.27 K
Maximum Observed - Clear RTM BT (3.9 um)	30.77 K
Maximum Observed BTD (3.9-10/11/12 um)	38.26 K
Observed - Background BTD (3.9-10/11/12 um)	24.53 K
BTD Anomaly (3.9-10/11/12 um)	33.94 K
Similar Pixel Count	0
BT Time Tendency (3.9 um)	23.20 K
Image Interval	5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder	0.75
Fraction of Surrounding Red Channel Pixels that are Brighter	0.00
Maximum Radiative Power	220.88 MW
Maximum Radiative Power Uncertainty	0.00 MW
Total Radiative Power Uncertainty	0.00 MW
Mean Viewing Angle	46.00°
Mean Solar Zenith Angle	27.00°
Mean Glint Angle	44.40°
Water Fraction	0.00
Total Pixel Area	5.80 km²
Latest Satellite Imagery:	AZsw-CAse_750_m CAs_750_m
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Next Generation Fire System (NGFS) - Experimental