Every instrument close enough to be worth naming, how far away it is, how high it stands, and what kind of measurement it makes.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Arco 17 SW Report
Rank 499 of 833 in Idaho, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.
Ranking Statistics
247 score89.1of 100
Idaho median
90.9the median score of 833 stations
Scoring higher
493stations in Idaho
Sharing its score
7ranks 494 to 500
Points deducted
10.97.3 arrival, 1.8 forecast check, 1.8 accuracy
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Idaho median 91.0, 100.0, 81.9
Next above
THSI1rank 496; ahead on reports due 168 against 84, the longer record first
Next below
SCBI1rank 501; behind on 247 score 89.1 against 89.0
Sharing its rank
1other stations, equal on every measure
Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.
Reports receivedweight 35100.035.0 of 35 pointsIdaho median 98.884 of 84 scheduled reports received in 7 days
Arrivalweight 1027.02.7 of 10 pointsIdaho median 76.8half its reports arrived within 1.5 h
Continuityweight 10100.010.0 of 10 pointsIdaho median 100.0longest silence 3.1 h, on a schedule of one report every 2 h
Accuracyweight 20-18.2 of 20 points, at the medianIdaho median 91.0-
Instrument checksweight 15-15.0 of 15 points, at the medianIdaho median 100.0-
Forecast checkweight 10-8.2 of 10 points, at the medianIdaho median 81.9-
The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.
How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 12 min, none at 2 h
Continuity
Full marks for a longest silence of 3 reports or less (6 h), none for 72 (144 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F
The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 84 of 84 scheduled reports received, 100%.
Its schedule is one report every 5 min, 288 in 24 hours. Two reports in the same 5 min count as one received.
The ranking these charts were drawn from, as tables
Share of scheduled reports received
Stations
100%
202
90 to 99%
379
80 to 89%
32
70 to 79%
14
60 to 69%
4
50 to 59%
161
40 to 49%
31
30 to 39%
4
20 to 29%
4
10 to 19%
2
0 to 9%
0
Day
Rank
Stations ranked
Share received
Oct 16, 2026
499
833
100.0%
Oct 15, 2026
483
833
100.0%
Oct 14, 2026
468
829
100.0%
Oct 13, 2026
564
835
100.0%
Oct 12, 2026
477
835
100.0%
Oct 11, 2026
453
834
100.0%
Oct 10, 2026
392
833
100.0%
Oct 9, 2026
391
833
100.0%
Oct 8, 2026
394
786
100.0%
Oct 7, 2026
399
783
100.0%
Oct 6, 2026
392
782
100.0%
Oct 5, 2026
390
768
100.0%
Oct 4, 2026
407
731
100.0%
Oct 3, 2026
473
726
100.0%
Oct 2, 2026
473
726
100.0%
Oct 1, 2026
240
660
100.0%
Sep 30, 2026
317
658
100.0%
Sep 29, 2026
317
654
100.0%
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Wind mph
Reports
Thu 15, 11 PM
46.9
25.0
1
1
Thu 15, 10 PM
46.0
25.3
2
12
Thu 15, 9 PM
46.0
26.9
2
12
Thu 15, 8 PM
48.5
26.9
2
12
Thu 15, 7 PM
51.8
25.6
1
12
Thu 15, 6 PM
54.9
24.0
2
12
Thu 15, 5 PM
58.1
21.7
3
12
Thu 15, 4 PM
59.2
20.7
3
12
Thu 15, 3 PM
58.5
21.6
4
12
Thu 15, 2 PM
56.3
21.2
3
12
Thu 15, 1 PM
54.2
22.1
4
12
Thu 15, 12 PM
52.3
22.2
4
12
Thu 15, 11 AM
50.0
22.0
5
12
Thu 15, 10 AM
46.5
24.9
3
12
Thu 15, 9 AM
41.8
25.2
3
12
Thu 15, 8 AM
38.2
24.2
2
12
Thu 15, 7 AM
37.8
23.8
2
12
Thu 15, 6 AM
39.5
23.8
3
12
Thu 15, 5 AM
38.1
23.3
4
12
Thu 15, 4 AM
39.5
24.2
2
12
Thu 15, 3 AM
37.4
25.7
3
12
Thu 15, 2 AM
38.3
26.9
2
12
Thu 15, 1 AM
39.6
28.1
1
12
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Wind mph
Reports
Thu 15, 11 PM
46.9
25.0
1
1
Thu 15, 10 PM
46.0
25.3
2
12
Thu 15, 9 PM
46.0
26.9
2
12
Thu 15, 8 PM
48.5
26.9
2
12
Thu 15, 7 PM
51.8
25.6
1
12
Thu 15, 6 PM
54.9
24.0
2
12
Thu 15, 5 PM
58.1
21.7
3
12
Thu 15, 4 PM
59.2
20.7
3
12
Thu 15, 3 PM
58.5
21.6
4
12
Thu 15, 2 PM
56.3
21.2
3
12
Thu 15, 1 PM
54.2
22.1
4
12
Thu 15, 12 PM
52.3
22.2
4
12
Thu 15, 11 AM
50.0
22.0
5
12
Thu 15, 10 AM
46.5
24.9
3
12
Thu 15, 9 AM
41.8
25.2
3
12
Thu 15, 8 AM
38.2
24.2
2
12
Thu 15, 7 AM
37.8
23.8
2
12
Thu 15, 6 AM
39.5
23.8
3
12
Thu 15, 5 AM
38.1
23.3
4
12
Thu 15, 4 AM
39.5
24.2
2
12
Thu 15, 3 AM
37.4
25.7
3
12
Thu 15, 2 AM
38.3
26.9
2
12
Thu 15, 1 AM
39.6
28.1
1
12
Thu 15, 12 AM
42.4
28.3
2
12
Wed 14, 11 PM
42.9
27.4
2
12
Wed 14, 10 PM
44.8
28.0
1
12
Wed 14, 9 PM
44.5
29.7
3
12
Wed 14, 8 PM
47.1
29.2
2
12
Wed 14, 7 PM
47.7
31.5
4
12
Wed 14, 6 PM
51.7
33.5
5
12
Wed 14, 5 PM
55.4
34.0
7
12
Wed 14, 4 PM
55.7
34.3
6
12
Wed 14, 3 PM
54.2
34.4
6
12
Wed 14, 2 PM
52.7
34.2
6
12
Wed 14, 1 PM
51.2
33.7
7
12
Wed 14, 12 PM
49.1
33.6
6
12
Wed 14, 11 AM
46.2
32.6
5
12
Wed 14, 10 AM
42.8
32.3
5
12
Wed 14, 9 AM
38.7
33.7
3
12
Wed 14, 8 AM
32.9
29.5
2
12
Wed 14, 7 AM
31.6
27.9
3
12
Wed 14, 6 AM
32.9
28.8
2
12
Wed 14, 5 AM
34.1
29.6
2
12
Wed 14, 4 AM
35.3
29.5
1
12
Wed 14, 3 AM
36.9
30.4
1
12
Wed 14, 2 AM
35.9
29.2
2
12
Wed 14, 1 AM
37.9
30.3
2
12
Wed 14, 12 AM
38.1
30.9
3
12
Tue 13, 11 PM
38.8
31.4
3
12
Tue 13, 10 PM
40.3
31.4
2
12
Tue 13, 9 PM
39.6
30.6
4
12
Tue 13, 8 PM
41.3
31.2
5
12
Tue 13, 7 PM
44.1
32.6
6
12
Tue 13, 6 PM
47.3
33.7
9
12
Tue 13, 5 PM
49.5
34.5
10
12
Tue 13, 4 PM
49.3
34.7
11
12
Tue 13, 3 PM
48.5
35.0
11
12
Tue 13, 2 PM
47.7
35.9
10
12
Tue 13, 1 PM
45.8
37.8
7
12
Tue 13, 12 PM
40.9
35.8
8
12
Tue 13, 11 AM
42.8
36.7
6
12
Tue 13, 10 AM
41.3
34.6
3
12
Tue 13, 9 AM
39.4
34.0
2
12
Tue 13, 8 AM
38.4
33.8
2
12
Tue 13, 7 AM
37.5
33.0
1
12
Tue 13, 6 AM
38.1
34.0
4
12
Tue 13, 5 AM
37.4
33.1
4
12
Tue 13, 4 AM
36.8
33.1
2
12
Tue 13, 3 AM
36.2
32.6
1
12
Tue 13, 2 AM
36.7
33.5
1
12
Tue 13, 1 AM
37.2
34.4
3
12
Tue 13, 12 AM
36.9
34.1
2
12
Mon 12, 11 PM
37.0
34.0
1
12
Mon 12, 10 PM
37.0
33.6
1
12
Mon 12, 9 PM
37.5
34.0
0
12
Mon 12, 8 PM
37.5
33.7
2
12
Mon 12, 7 PM
39.4
34.3
2
12
Mon 12, 6 PM
40.5
33.6
2
12
Mon 12, 5 PM
40.9
33.7
1
12
Mon 12, 4 PM
41.3
34.5
3
12
Mon 12, 3 PM
40.9
36.1
4
12
Mon 12, 2 PM
39.7
36.5
4
12
Mon 12, 1 PM
38.8
36.4
5
12
Mon 12, 12 PM
37.1
35.1
6
12
Mon 12, 11 AM
36.5
34.7
7
12
Mon 12, 10 AM
34.5
33.1
8
12
Mon 12, 9 AM
33.0
31.7
7
12
Mon 12, 8 AM
32.8
31.5
4
12
Mon 12, 7 AM
32.2
31.0
1
12
Mon 12, 6 AM
32.2
31.0
2
12
Mon 12, 5 AM
32.2
31.0
1
12
Mon 12, 4 AM
32.3
31.2
1
12
Mon 12, 3 AM
34.2
33.4
1
12
Mon 12, 2 AM
35.7
34.6
3
12
Mon 12, 1 AM
36.6
35.6
3
12
Mon 12, 12 AM
37.0
35.9
5
12
Sun 11, 11 PM
37.8
36.7
7
12
Sun 11, 10 PM
38.6
37.2
5
12
Sun 11, 9 PM
38.9
37.3
6
12
Sun 11, 8 PM
40.0
38.4
8
12
Sun 11, 7 PM
39.9
38.0
7
12
Sun 11, 6 PM
42.2
40.0
5
12
Sun 11, 5 PM
43.9
41.8
1
12
Sun 11, 4 PM
43.4
41.5
1
12
Sun 11, 3 PM
42.7
40.8
1
12
Sun 11, 2 PM
41.7
39.8
2
12
Sun 11, 1 PM
40.7
38.8
3
12
Sun 11, 12 PM
40.6
38.2
3
12
Sun 11, 11 AM
41.9
38.8
4
12
Sun 11, 10 AM
43.8
40.8
4
12
Sun 11, 9 AM
45.3
42.6
2
12
Sun 11, 8 AM
43.0
39.6
1
12
Sun 11, 7 AM
40.0
36.9
5
12
Sun 11, 6 AM
44.9
41.9
3
12
Sun 11, 5 AM
43.9
40.0
3
12
Sun 11, 4 AM
44.7
40.5
2
12
Sun 11, 3 AM
43.9
39.5
1
12
Sun 11, 2 AM
42.3
36.8
4
12
Sun 11, 1 AM
45.4
38.2
2
12
Sun 11, 12 AM
47.9
36.7
2
12
Sat 10, 11 PM
49.6
33.0
2
12
Sat 10, 10 PM
49.8
30.1
5
12
Sat 10, 9 PM
52.0
33.9
8
12
Sat 10, 8 PM
53.2
34.7
6
12
Sat 10, 7 PM
55.8
33.6
5
12
Sat 10, 6 PM
58.4
34.0
6
12
Sat 10, 5 PM
59.1
34.5
9
12
Sat 10, 4 PM
61.7
32.9
10
12
Sat 10, 3 PM
65.5
32.4
12
12
Sat 10, 2 PM
65.0
32.9
11
12
Sat 10, 1 PM
62.3
32.3
11
12
Sat 10, 12 PM
61.0
30.9
15
12
Sat 10, 11 AM
60.7
28.8
14
12
Sat 10, 10 AM
59.8
30.5
12
12
Sat 10, 9 AM
57.4
34.4
11
12
Sat 10, 8 AM
53.8
36.6
6
12
Sat 10, 7 AM
52.2
36.3
5
12
Sat 10, 6 AM
55.1
32.9
10
12
Sat 10, 5 AM
58.9
28.7
7
12
Sat 10, 4 AM
58.8
27.9
6
12
Sat 10, 3 AM
54.4
24.2
3
12
Sat 10, 2 AM
55.0
23.7
3
12
Sat 10, 1 AM
56.8
23.3
2
12
Sat 10, 12 AM
57.4
23.1
2
12
Fri 9, 11 PM
60.0
22.9
2
12
Fri 9, 10 PM
61.1
22.4
3
12
Fri 9, 9 PM
62.6
21.2
3
12
Fri 9, 8 PM
66.2
20.6
4
12
Fri 9, 7 PM
69.5
20.0
10
12
Fri 9, 6 PM
72.2
19.0
11
12
Fri 9, 5 PM
74.7
19.2
14
12
Fri 9, 4 PM
75.0
20.4
14
12
Fri 9, 3 PM
76.4
19.4
17
12
Fri 9, 2 PM
76.1
18.6
14
12
Fri 9, 1 PM
74.8
19.5
11
12
Fri 9, 12 PM
72.1
21.5
6
12
Fri 9, 11 AM
66.2
22.3
4
12
Fri 9, 10 AM
61.0
22.5
3
12
Fri 9, 9 AM
55.3
22.8
3
12
Fri 9, 8 AM
51.7
22.2
1
12
Fri 9, 7 AM
51.9
22.1
2
12
Fri 9, 6 AM
58.0
22.8
2
12
Fri 9, 5 AM
53.9
22.7
2
12
Fri 9, 4 AM
53.6
22.1
2
12
Fri 9, 3 AM
56.3
22.8
2
12
Fri 9, 2 AM
56.4
23.3
3
12
Fri 9, 1 AM
56.2
23.2
4
12
The readings these charts were drawn from, as a table
Day
High F
Low F
Highest dew point F
Lowest dew point F
Highest humidity %
Lowest humidity %
Precipitation in
Oct 15
59.4
34.2
29.7
19.8
66
22
0.00
Oct 14
56.8
30.0
35.8
26.3
88
43
0.00
Oct 13
50.2
35.1
38.9
29.9
90
55
0.00
Oct 12
42.3
32.0
37.6
30.7
97
74
0.30
Oct 11
49.1
37.4
43.2
35.0
96
58
0.50
Oct 10
66.9
48.7
37.5
22.7
58
25
0.01
Oct 9
77.0
49.5
24.3
17.5
34
11
0.00
Oct 8
78.3
48.7
23.3
10.5
28
8
0.00
Oct 7
79.2
49.8
25.9
6.0
32
6
0.00
Oct 6
79.0
54.9
26.9
15.3
25
12
0.00
Oct 5
82.2
54.7
23.7
14.4
24
10
0.00
Oct 4
81.3
50.7
22.8
9.4
29
7
0.00
Oct 3
76.8
46.9
28.7
12.2
37
10
0.00
Oct 2
77.5
47.5
35.5
12.9
57
11
0.00
Oct 1
72.7
46.2
36.8
28.4
56
20
0.00
Sep 30
72.0
46.0
34.3
22.7
48
20
0.00
Sep 29
69.4
43.7
36.0
17.2
63
18
0.00
Sep 28
70.0
45.5
39.9
26.4
55
22
0.00
Sep 27
73.2
46.9
27.3
19.0
43
15
0.00
Sep 26
66.0
40.6
32.4
8.3
55
11
0.00
Sep 25
76.1
48.0
32.1
23.5
45
15
0.00
Sep 24
77.7
45.9
39.2
21.3
61
14
0.00
Sep 23
72.5
44.8
46.2
31.4
82
24
0.00
Sep 22
66.2
47.7
47.6
28.7
83
36
0.01
Sep 21
71.4
44.2
40.2
26.6
72
20
0.00
Sep 20
67.5
42.8
41.0
34.7
75
34
0.00
Sep 19
61.7
42.4
46.0
35.4
83
45
0.02
Sep 18
65.1
47.7
49.5
39.6
88
48
0.00
Sep 17
68.7
51.1
54.2
37.0
82
40
0.06
Station report
Arco 17 SW, in 5 sheets
Drawn from its report of Oct 15, 2026, 9:00 PM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.
47.1 F with a dew point of 27.4 F, 46 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,500 ft up.
At 5,920 ft above sea level, 20 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 24.05 inHg and the temperature at 37.9 F; it reports 47.1 F, 9.2 F warmer than standard.
On Oct 16 the noon sun stands 37 degrees above the horizon at 43.46 N, and the day is 10 h 50 min long. Level ground there takes 61 per cent of the noon sunlight a surface facing the sun would.