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
Mark Twain HS Report
Rank 686 of 1,014 in Missouri, 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 score92.4of 100
Missouri median
96.2the median score of 1,014 stations
Scoring higher
684stations in Missouri
Sharing its score
3ranks 685 to 687
Points deducted
7.67.0 arrival, 0.3 forecast check, 0.3 accuracy
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Missouri median 98.5, 100.0, 96.7
Next above
ASLM7rank 685; ahead on median arrival 17 min 51 s against 44 min 55 s
Next below
STJrank 687; behind on reports received 100% against 85.7%
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 pointsMissouri median 98.9168 of 168 scheduled reports received in 7 days
Arrivalweight 1030.23.0 of 10 pointsMissouri median 94.3half its reports arrived within 45 min
Continuityweight 10100.010.0 of 10 pointsMissouri median 100.0longest silence 63 min, on a schedule of one report every 60 min
Accuracyweight 20-19.7 of 20 points, at the medianMissouri median 98.5-
Instrument checksweight 15-15.0 of 15 points, at the medianMissouri median 100.0-
Forecast checkweight 10-9.7 of 10 points, at the medianMissouri median 96.7-
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 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (3 h), none for 72 (72 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: 168 of 168 scheduled reports received, 100%.
Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.
The ranking these charts were drawn from, as tables
Share of scheduled reports received
Stations
100%
297
90 to 99%
348
80 to 89%
91
70 to 79%
58
60 to 69%
20
50 to 59%
93
40 to 49%
66
30 to 39%
4
20 to 29%
24
10 to 19%
7
0 to 9%
6
Day
Rank
Stations ranked
Share received
Oct 16, 2026
686
1,014
100.0%
Oct 15, 2026
695
990
100.0%
Oct 14, 2026
677
976
99.4%
Oct 13, 2026
663
981
99.4%
Oct 12, 2026
666
994
99.4%
Oct 11, 2026
677
995
99.4%
Oct 10, 2026
759
998
95.2%
Oct 9, 2026
758
998
95.2%
Oct 8, 2026
766
1,022
95.2%
Oct 7, 2026
780
1,051
95.2%
Oct 6, 2026
767
1,030
95.2%
Oct 5, 2026
761
1,014
95.0%
Oct 4, 2026
809
904
94.1%
Oct 3, 2026
795
893
99.1%
Oct 2, 2026
795
893
99.1%
Oct 1, 2026
393
600
98.8%
Sep 30, 2026
422
604
98.4%
Sep 29, 2026
356
598
100.0%
Sep 28, 2026
369
576
100.0%
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Wind direction °
Reports
Thu 15, 9 PM
58.1
54.2
87
-
-
1
Thu 15, 8 PM
64.0
61.0
90
16
313
1
Thu 15, 7 PM
71.2
66.4
85
11
299
1
Thu 15, 6 PM
73.4
66.5
79
7
268
1
Thu 15, 5 PM
74.5
67.2
78
7
261
1
Thu 15, 4 PM
77.0
67.6
73
10
270
1
Thu 15, 3 PM
77.2
70.1
79
12
254
1
Thu 15, 2 PM
74.5
70.7
88
9
239
1
Thu 15, 1 PM
72.5
70.3
93
8
218
1
Thu 15, 12 PM
70.0
69.1
97
6
186
1
Thu 15, 11 AM
66.7
66.1
98
6
156
1
Thu 15, 10 AM
64.9
64.0
97
6
129
1
Thu 15, 9 AM
62.4
61.2
96
8
115
1
Thu 15, 8 AM
62.4
60.6
94
6
102
1
Thu 15, 7 AM
63.0
60.9
93
4
106
1
Thu 15, 6 AM
63.3
61.2
93
5
83
1
Thu 15, 5 AM
62.6
61.7
97
4
76
1
Thu 15, 4 AM
62.2
61.6
98
4
39
1
Thu 15, 3 AM
62.8
61.9
97
3
350
1
Thu 15, 2 AM
61.3
60.7
98
1
39
1
Thu 15, 1 AM
61.5
60.9
98
1
314
1
Thu 15, 12 AM
61.7
60.5
96
0
-
1
Wed 14, 11 PM
63.3
61.5
94
1
26
1
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Wind direction °
Reports
Thu 15, 9 PM
58.1
54.2
87
-
-
1
Thu 15, 8 PM
64.0
61.0
90
16
313
1
Thu 15, 7 PM
71.2
66.4
85
11
299
1
Thu 15, 6 PM
73.4
66.5
79
7
268
1
Thu 15, 5 PM
74.5
67.2
78
7
261
1
Thu 15, 4 PM
77.0
67.6
73
10
270
1
Thu 15, 3 PM
77.2
70.1
79
12
254
1
Thu 15, 2 PM
74.5
70.7
88
9
239
1
Thu 15, 1 PM
72.5
70.3
93
8
218
1
Thu 15, 12 PM
70.0
69.1
97
6
186
1
Thu 15, 11 AM
66.7
66.1
98
6
156
1
Thu 15, 10 AM
64.9
64.0
97
6
129
1
Thu 15, 9 AM
62.4
61.2
96
8
115
1
Thu 15, 8 AM
62.4
60.6
94
6
102
1
Thu 15, 7 AM
63.0
60.9
93
4
106
1
Thu 15, 6 AM
63.3
61.2
93
5
83
1
Thu 15, 5 AM
62.6
61.7
97
4
76
1
Thu 15, 4 AM
62.2
61.6
98
4
39
1
Thu 15, 3 AM
62.8
61.9
97
3
350
1
Thu 15, 2 AM
61.3
60.7
98
1
39
1
Thu 15, 1 AM
61.5
60.9
98
1
314
1
Thu 15, 12 AM
61.7
60.5
96
0
-
1
Wed 14, 11 PM
63.3
61.5
94
1
26
1
Wed 14, 10 PM
65.5
62.2
89
3
46
1
Wed 14, 9 PM
65.7
63.0
91
5
348
1
Wed 14, 8 PM
66.7
63.0
88
4
14
1
Wed 14, 7 PM
68.4
64.4
87
5
353
1
Wed 14, 6 PM
70.2
65.5
85
2
50
1
Wed 14, 5 PM
70.5
65.1
83
1
134
1
Wed 14, 4 PM
71.2
64.7
80
3
259
1
Wed 14, 3 PM
71.8
64.9
79
3
269
1
Wed 14, 2 PM
70.9
65.1
82
4
336
1
Wed 14, 1 PM
69.1
65.0
87
4
349
1
Wed 14, 12 PM
68.9
64.8
87
3
12
1
Wed 14, 11 AM
67.3
64.2
90
4
334
1
Wed 14, 10 AM
65.7
64.2
95
5
347
1
Wed 14, 9 AM
66.4
64.6
94
6
350
1
Wed 14, 8 AM
67.3
65.8
95
5
328
1
Wed 14, 7 AM
67.8
67.2
98
5
332
1
Wed 14, 6 AM
67.8
67.2
98
5
265
1
Wed 14, 5 AM
67.6
66.7
97
5
240
1
Wed 14, 4 AM
67.8
66.6
96
5
29
1
Wed 14, 3 AM
69.6
67.1
92
4
191
1
Wed 14, 2 AM
68.7
67.5
96
12
267
1
Wed 14, 1 AM
67.6
65.5
93
8
265
1
Wed 14, 12 AM
68.0
66.5
95
5
170
1
Tue 13, 11 PM
68.7
66.9
94
6
126
1
Tue 13, 10 PM
78.6
69.2
73
9
287
1
Tue 13, 9 PM
79.0
67.9
69
1
161
1
Tue 13, 8 PM
80.6
67.7
65
2
155
1
Tue 13, 7 PM
84.6
68.1
58
1
199
1
Tue 13, 6 PM
90.0
68.2
49
3
182
1
Tue 13, 5 PM
91.4
67.6
46
7
201
1
Tue 13, 4 PM
93.9
67.3
42
8
220
1
Tue 13, 3 PM
94.5
68.5
43
9
223
1
Tue 13, 2 PM
91.8
68.0
46
9
220
1
Tue 13, 1 PM
90.3
68.5
49
9
228
1
Tue 13, 12 PM
88.0
67.6
51
7
234
1
Tue 13, 11 AM
85.1
66.5
54
7
239
1
Tue 13, 10 AM
81.0
65.3
59
9
244
1
Tue 13, 9 AM
75.6
61.2
61
9
240
1
Tue 13, 8 AM
70.0
56.8
63
7
232
1
Tue 13, 7 AM
66.0
53.9
65
4
221
1
Tue 13, 6 AM
68.7
53.3
58
4
226
1
Tue 13, 5 AM
69.3
51.9
54
4
223
1
Tue 13, 4 AM
69.8
51.4
52
4
225
1
Tue 13, 3 AM
71.2
51.1
49
6
228
1
Tue 13, 2 AM
70.2
53.3
55
6
220
1
Tue 13, 1 AM
69.4
55.8
62
4
214
1
Tue 13, 12 AM
70.9
55.8
59
3
205
1
Mon 12, 11 PM
73.9
55.7
53
3
223
1
Mon 12, 10 PM
74.8
57.0
54
4
211
1
Mon 12, 9 PM
77.7
58.1
51
4
204
1
Mon 12, 8 PM
80.4
58.3
47
5
198
1
Mon 12, 7 PM
83.5
59.3
44
5
205
1
Mon 12, 6 PM
88.3
57.9
36
6
200
1
Mon 12, 5 PM
90.9
59.4
35
11
221
1
Mon 12, 4 PM
91.9
60.3
35
13
221
1
Mon 12, 3 PM
91.6
60.8
36
14
224
1
Mon 12, 2 PM
92.5
61.6
36
12
222
1
Mon 12, 1 PM
89.6
59.8
37
12
223
1
Mon 12, 12 PM
87.4
59.4
39
11
217
1
Mon 12, 11 AM
85.1
59.4
42
10
221
1
Mon 12, 10 AM
80.4
57.7
46
8
213
1
Mon 12, 9 AM
73.9
57.2
56
9
202
1
Mon 12, 8 AM
70.5
56.8
62
8
192
1
Mon 12, 7 AM
67.8
55.6
65
6
189
1
Mon 12, 6 AM
68.5
55.4
63
5
189
1
Mon 12, 5 AM
68.0
54.9
63
5
192
1
Mon 12, 4 AM
67.5
54.0
62
4
192
1
Mon 12, 3 AM
66.6
53.2
62
3
199
1
Mon 12, 2 AM
67.6
53.7
61
3
197
1
Mon 12, 1 AM
67.1
55.3
66
3
191
1
Mon 12, 12 AM
66.0
57.1
73
2
184
1
Sun 11, 11 PM
68.4
57.4
68
2
185
1
Sun 11, 10 PM
70.2
56.6
62
2
177
1
Sun 11, 9 PM
69.4
53.0
56
3
157
1
Sun 11, 8 PM
68.7
50.9
53
1
153
1
Sun 11, 7 PM
75.7
49.7
40
0
117
1
Sun 11, 6 PM
82.4
49.6
32
1
203
1
Sun 11, 5 PM
89.6
48.0
24
4
214
1
Sun 11, 4 PM
91.0
50.3
25
5
213
1
Sun 11, 3 PM
90.7
50.0
25
6
209
1
Sun 11, 2 PM
89.6
51.2
27
6
212
1
Sun 11, 1 PM
88.2
54.6
32
5
220
1
Sun 11, 12 PM
83.8
55.5
38
4
219
1
Sun 11, 11 AM
77.7
56.4
48
5
205
1
Sun 11, 10 AM
70.2
53.3
55
4
182
1
Sun 11, 9 AM
64.8
51.9
63
5
167
1
Sun 11, 8 AM
58.5
51.3
77
4
162
1
Sun 11, 7 AM
54.5
50.4
86
2
163
1
Sun 11, 6 AM
53.6
50.1
88
3
149
1
Sun 11, 5 AM
54.3
50.8
88
2
139
1
Sun 11, 4 AM
53.8
50.3
88
2
153
1
Sun 11, 3 AM
55.4
50.6
84
2
160
1
Sun 11, 2 AM
58.1
51.3
78
1
172
1
Sun 11, 1 AM
58.5
50.6
75
1
184
1
Sun 11, 12 AM
63.3
51.7
66
3
143
1
Sat 10, 11 PM
63.7
52.1
66
4
144
1
Sat 10, 10 PM
62.6
52.3
69
4
142
1
Sat 10, 9 PM
66.4
53.0
62
3
141
1
Sat 10, 8 PM
68.2
53.3
59
3
138
1
Sat 10, 7 PM
72.7
51.3
47
4
139
1
Sat 10, 6 PM
80.2
52.3
38
5
140
1
Sat 10, 5 PM
84.4
52.9
34
8
140
1
Sat 10, 4 PM
87.3
42.6
21
8
151
1
Sat 10, 3 PM
86.5
51.4
30
7
155
1
Sat 10, 2 PM
86.2
51.1
30
7
152
1
Sat 10, 1 PM
85.6
52.3
32
6
159
1
Sat 10, 12 PM
82.9
52.4
35
6
158
1
Sat 10, 11 AM
77.4
52.5
42
5
163
1
Sat 10, 10 AM
70.2
52.8
54
5
188
1
Sat 10, 9 AM
62.2
51.1
67
5
166
1
Sat 10, 8 AM
57.4
49.2
74
2
161
1
Sat 10, 7 AM
53.6
48.2
82
3
159
1
Sat 10, 6 AM
54.5
46.7
75
1
142
1
Sat 10, 5 AM
58.3
48.6
70
1
144
1
Sat 10, 4 AM
59.7
49.5
69
1
161
1
Sat 10, 3 AM
62.2
49.9
64
2
168
1
Sat 10, 2 AM
64.8
50.1
59
3
174
1
Sat 10, 1 AM
65.5
50.3
58
3
174
1
Sat 10, 12 AM
68.5
50.7
53
3
164
1
Fri 9, 11 PM
71.4
51.8
50
3
168
1
Fri 9, 10 PM
73.6
53.8
50
4
169
1
Fri 9, 9 PM
72.1
55.5
56
4
166
1
Fri 9, 8 PM
73.4
56.7
56
3
148
1
Fri 9, 7 PM
74.8
56.5
53
3
149
1
Fri 9, 6 PM
84.9
57.2
39
2
159
1
Fri 9, 5 PM
88.2
56.3
34
6
193
1
Fri 9, 4 PM
88.5
54.8
32
7
193
1
Fri 9, 3 PM
89.6
56.6
33
8
205
1
Fri 9, 2 PM
88.9
56.0
33
8
205
1
Fri 9, 1 PM
85.6
57.1
38
7
192
1
Fri 9, 12 PM
82.6
54.4
38
7
180
1
Fri 9, 11 AM
75.4
49.4
40
5
149
1
Fri 9, 10 AM
70.7
48.3
45
4
137
1
Fri 9, 9 AM
66.0
46.3
49
4
63
1
Fri 9, 8 AM
60.4
47.3
62
2
149
1
Fri 9, 7 AM
61.5
45.7
56
3
132
1
Fri 9, 6 AM
60.3
46.8
61
4
162
1
Fri 9, 5 AM
60.1
46.6
61
3
168
1
Fri 9, 4 AM
59.9
46.0
60
3
165
1
Fri 9, 3 AM
58.3
44.9
61
2
163
1
Fri 9, 2 AM
59.9
44.2
56
1
152
1
Fri 9, 1 AM
61.3
45.0
55
2
135
1
Fri 9, 12 AM
60.1
46.6
61
1
150
1
Thu 8, 11 PM
59.4
46.8
63
2
155
1
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 %
Strongest gust mph
Oct 15
77.2
58.1
70.7
54.2
98
73
27
Oct 14
71.8
63.3
67.5
61.5
98
79
25
Oct 13
94.5
66.0
69.2
51.1
94
42
31
Oct 12
92.5
66.0
61.6
53.2
73
35
23
Oct 11
91.0
53.6
57.4
48.0
88
24
14
Oct 10
87.3
53.6
53.3
42.6
82
21
15
Oct 9
89.6
58.3
57.2
44.2
62
32
17
Oct 8
84.7
48.9
56.0
38.8
97
20
11
Oct 7
88.5
55.9
58.4
46.5
81
35
13
Oct 6
81.3
46.6
47.5
41.0
85
27
15
Oct 5
75.2
45.9
51.6
37.6
94
26
10
Oct 4
78.6
45.9
53.0
44.1
96
35
15
Oct 3
75.0
45.9
47.9
38.5
89
28
12
Oct 2
71.6
53.4
61.2
40.1
98
33
16
Oct 1
77.0
64.4
69.9
62.3
98
63
17
Sep 30
90.3
66.6
64.9
53.1
77
37
17
Sep 29
84.2
52.2
54.5
44.6
92
27
15
Sep 28
79.0
57.9
59.1
47.3
97
33
12
Sep 27
66.7
55.2
59.7
50.5
94
71
8
Sep 26
70.2
60.6
61.3
51.4
92
56
12
Sep 25
72.9
56.7
62.5
55.3
96
63
11
Sep 24
66.0
55.4
58.1
53.6
95
69
9
Sep 23
70.0
57.7
56.0
51.6
86
58
15
Sep 22
66.7
60.4
62.2
52.1
98
73
13
Sep 21
69.6
63.7
66.4
61.0
98
80
13
Sep 20
87.4
70.0
70.5
63.4
95
48
15
Sep 19
97.2
73.0
71.0
59.7
92
30
16
Sep 18
92.5
74.7
75.4
70.0
96
54
12
Sep 17
100.4
72.9
73.4
67.1
92
36
10
Station report
Mark Twain HS, in 4 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.
58.1 F with a dew point of 54.2 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.
At 719 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.15 inHg and the temperature at 56.4 F; it reports 58.1 F, 1.7 F warmer than standard.
On Oct 16 the noon sun stands 41 degrees above the horizon at 39.51 N, and the day is 10 h 59 min long. Level ground there takes 66 per cent of the noon sunlight a surface facing the sun would.