Northwestern Energy - 161 kV transmission Fire Weather Dashboard
Last update: 2025-12-17 00:45. Next update: 2025-12-17 06:45.

Previous forecast cycles can be accessed as:
https://nwefireweather.app/nwe_transmission_161/YYYYMMDD_CC.html
where CC is 00, 06, 12, or 18

**Northwestern Energy - 161 kV Transmission Severe Fire Danger Index Forecast for 12/16/25 - 12/22/25**
Zone	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22
Alkali Creek to Billings RimRock - Tier 2	low	low	moderate	low	low	low	low
Anaconda Mill Creek to ASiMI A-Line - Tier 3	low	low	low	low	low	low	low
Anaconda Mill Creek to ASiMI B-Line - Tier 3	low	low	low	low	low	low	low
ASiMI to South Butte B-Line - Tier 3	low	low	moderate	low	low	low	low
Big Timber Auto to Big Timber Wind - Tier 2	low	low	low	low	low	low	low
Bonner to Anaconda Mill Creek A-Line - Tier 2	low	low	low	low	low	low	low
Bozeman East Gallatin Auto to Clyde Park A-Line - Tier 3	low	low	low	low	low	low	low
Bozeman East Gallatin Auto to Clyde Park B-Line - Tier 3	low	low	low	low	low	low	low
Clyde Park to Emigrant - Tier 3	low	low	low	low	low	low	low
Clyde Park to Lower Duck Creek - Tier 2	low	low	low	low	low	low	low
Columbus Rapelje Auto to Alkali Creek - Tier 2	low	low	low	low	low	low	low
Ennis Auto to Lone Mountain - Tier 2	low	low	low	low	low	low	low
Jackrabbit Auto to Big Sky Meadow Village - Tier 2	low	low	low	low	low	low	low
Jackrabbit Auto to Ennis Auto - Tier 3	low	low	low	low	low	low	low
Kerr to Rattlesnake B-Line - Tier 2	moderate	moderate	moderate	low	moderate	low	low
Lower Duck Creek to Big Timber Auto - Tier 2	low	low	low	low	low	low	low
Missoula Miller Creek to Bonner - Tier 2	low	moderate	moderate	low	low	low	low
Missoula Miller Creek to Hamilton Heights A-Line - Tier 2	low	low	low	low	low	low	low
Missoula Miller Creek to Hamilton Heights B-Line - Tier 2	low	low	low	low	low	low	low
Missoula Reserve Street to Rattlesnake - Tier 2	low	low	low	low	low	low	low
Rattlesnake to Bonner A-Line - Tier 2	low	low	low	low	low	low	low
Rattlesnake to Kerr A-Line - Tier 2	low	low	low	low	low	low	low
Sheridan Auto to Ennis Auto - Tier 3	low	low	low	low	low	low	low
South Butte to ASiMI A-Line - Tier 3	low	low	moderate	low	low	low	low
South Butte to Three Rivers - Tier 2	low	low	moderate	low	low	low	low
Three Rivers to Clyde Park - Tier 2	low	moderate	moderate	low	low	low	low
Wilsall to Clyde Park - Tier 3	low	low	low	low	low	low	low

**Northwestern Energy - 161 kV Transmission Percent of CRI Threshold Forecast for 12/16/25 - 12/22/25**
Zone	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22
Alkali Creek to Billings RimRock - Tier 2	4	49	7	23	9	1	1
Anaconda Mill Creek to ASiMI A-Line - Tier 3	4	37	3	6	4	1	0
Anaconda Mill Creek to ASiMI B-Line - Tier 3	3	39	4	7	4	1	0
ASiMI to South Butte B-Line - Tier 3	4	46	7	21	8	1	1
Big Timber Auto to Big Timber Wind - Tier 2	2	56	2	4	2	1	1
Bonner to Anaconda Mill Creek A-Line - Tier 2	6	56	12	21	9	0	0
Bozeman East Gallatin Auto to Clyde Park A-Line - Tier 3	20	63	23	24	13	5	3
Bozeman East Gallatin Auto to Clyde Park B-Line - Tier 3	1	40	2	0	0	0	0
Clyde Park to Emigrant - Tier 3	1	60	20	26	21	2	0
Clyde Park to Lower Duck Creek - Tier 2	20	63	23	25	13	5	3
Columbus Rapelje Auto to Alkali Creek - Tier 2	12	69	20	41	8	3	3
Ennis Auto to Lone Mountain - Tier 2	5	59	9	14	9	2	2
Jackrabbit Auto to Big Sky Meadow Village - Tier 2	18	102	26	42	16	0	1
Jackrabbit Auto to Ennis Auto - Tier 3	1	58	26	20	21	2	1
Kerr to Rattlesnake B-Line - Tier 2	14	51	21	48	9	2	2
Lower Duck Creek to Big Timber Auto - Tier 2	4	64	15	20	10	0	1
Missoula Miller Creek to Bonner - Tier 2	7	70	10	34	12	1	1
Missoula Miller Creek to Hamilton Heights A-Line - Tier 2	5	46	6	23	9	0	1
Missoula Miller Creek to Hamilton Heights B-Line - Tier 2	5	67	11	15	15	1	2
Missoula Reserve Street to Rattlesnake - Tier 2	21	52	10	7	6	1	2
Rattlesnake to Bonner A-Line - Tier 2	21	52	10	7	6	1	2
Rattlesnake to Kerr A-Line - Tier 2	13	46	17	42	9	2	3
Sheridan Auto to Ennis Auto - Tier 3	15	54	14	43	10	7	5
South Butte to ASiMI A-Line - Tier 3	6	49	28	27	12	1	1
South Butte to Three Rivers - Tier 2	1	46	15	16	11	0	1
Three Rivers to Clyde Park - Tier 2	8	46	7	28	4	1	2
Wilsall to Clyde Park - Tier 3	22	125	32	50	19	1	1

**Northwestern Energy - 161 kV Transmission Energy Release Component Percentile Forecast for 12/16/25 - 12/22/25**
Zone	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22
Alkali Creek to Billings RimRock - Tier 2	4	6	5	4	0	2	5
Anaconda Mill Creek to ASiMI A-Line - Tier 3	0	0	0	0	0	0	0
Anaconda Mill Creek to ASiMI B-Line - Tier 3	0	0	0	0	0	0	0
ASiMI to South Butte B-Line - Tier 3	4	6	5	4	0	2	5
Big Timber Auto to Big Timber Wind - Tier 2	0	0	0	0	0	0	0
Bonner to Anaconda Mill Creek A-Line - Tier 2	0	0	0	0	0	0	0
Bozeman East Gallatin Auto to Clyde Park A-Line - Tier 3	0	0	0	0	0	0	0
Bozeman East Gallatin Auto to Clyde Park B-Line - Tier 3	0	0	0	0	0	0	0
Clyde Park to Emigrant - Tier 3	0	0	0	0	0	0	0
Clyde Park to Lower Duck Creek - Tier 2	0	0	0	0	0	0	0
Columbus Rapelje Auto to Alkali Creek - Tier 2	0	0	0	0	0	0	0
Ennis Auto to Lone Mountain - Tier 2	0	0	0	0	0	0	0
Jackrabbit Auto to Big Sky Meadow Village - Tier 2	0	0	0	0	0	0	0
Jackrabbit Auto to Ennis Auto - Tier 3	0	0	0	0	0	0	1
Kerr to Rattlesnake B-Line - Tier 2	2	2	3	2	1	2	4
Lower Duck Creek to Big Timber Auto - Tier 2	0	0	0	0	0	0	0
Missoula Miller Creek to Bonner - Tier 2	5	7	7	6	5	7	10
Missoula Miller Creek to Hamilton Heights A-Line - Tier 2	0	0	0	0	0	1	1
Missoula Miller Creek to Hamilton Heights B-Line - Tier 2	0	0	0	0	0	0	0
Missoula Reserve Street to Rattlesnake - Tier 2	0	0	0	0	0	0	0
Rattlesnake to Bonner A-Line - Tier 2	0	0	0	0	0	0	0
Rattlesnake to Kerr A-Line - Tier 2	0	0	1	1	0	0	1
Sheridan Auto to Ennis Auto - Tier 3	0	0	0	1	0	0	1
South Butte to ASiMI A-Line - Tier 3	0	0	1	1	1	1	2
South Butte to Three Rivers - Tier 2	0	0	1	1	2	3	4
Three Rivers to Clyde Park - Tier 2	0	0	0	0	0	0	0
Wilsall to Clyde Park - Tier 3	0	0	0	0	0	0	0

**Northwestern Energy - 161 kV Transmission Max Wind Gust Forecast for 12/16/25 - 12/22/25**
Zone	Dec 16	Dec 17	Dec 18	Dec 19	Dec 20	Dec 21	Dec 22
Alkali Creek to Billings RimRock - Tier 2	30	58	31	43	25	17	22
Anaconda Mill Creek to ASiMI A-Line - Tier 3	21	51	28	40	23	14	15
Anaconda Mill Creek to ASiMI B-Line - Tier 3	20	51	28	42	23	14	15
ASiMI to South Butte B-Line - Tier 3	30	58	31	44	25	18	22
Big Timber Auto to Big Timber Wind - Tier 2	21	57	26	46	26	14	24
Bonner to Anaconda Mill Creek A-Line - Tier 2	34	60	42	45	28	14	21
Bozeman East Gallatin Auto to Clyde Park A-Line - Tier 3	24	54	31	34	24	21	19
Bozeman East Gallatin Auto to Clyde Park B-Line - Tier 3	23	54	23	45	23	13	17
Clyde Park to Emigrant - Tier 3	17	61	50	42	32	19	14
Clyde Park to Lower Duck Creek - Tier 2	24	54	31	34	24	21	19
Columbus Rapelje Auto to Alkali Creek - Tier 2	28	57	38	44	24	24	25
Ennis Auto to Lone Mountain - Tier 2	24	56	31	46	24	15	21
Jackrabbit Auto to Big Sky Meadow Village - Tier 2	34	58	40	46	27	17	23
Jackrabbit Auto to Ennis Auto - Tier 3	14	63	55	43	33	18	18
Kerr to Rattlesnake B-Line - Tier 2	30	56	39	51	25	29	26
Lower Duck Creek to Big Timber Auto - Tier 2	30	64	45	47	29	18	23
Missoula Miller Creek to Bonner - Tier 2	29	58	36	43	25	13	20
Missoula Miller Creek to Hamilton Heights A-Line - Tier 2	28	58	37	44	27	14	19
Missoula Miller Creek to Hamilton Heights B-Line - Tier 2	25	58	32	42	24	15	20
Missoula Reserve Street to Rattlesnake - Tier 2	38	55	34	45	23	18	19
Rattlesnake to Bonner A-Line - Tier 2	38	55	35	45	23	18	19
Rattlesnake to Kerr A-Line - Tier 2	28	57	35	50	27	29	27
Sheridan Auto to Ennis Auto - Tier 3	27	58	35	49	28	29	31
South Butte to ASiMI A-Line - Tier 3	35	66	51	51	32	17	22
South Butte to Three Rivers - Tier 2	28	67	54	46	32	11	22
Three Rivers to Clyde Park - Tier 2	30	55	35	51	23	21	26
Wilsall to Clyde Park - Tier 3	34	58	40	46	27	17	23