Storm Station
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At a soil climate station

SCAN network, identified by the register

Identifier
S2225
Latitude
39.51000 N
Longitude
91.51000 W
Elevation
719 ft
Observed
9:00 PMCDT, 2 hours ago
Air temperature
58.1F
What it feels like
58.1F
High so far today
77.2F
Low so far today
58.1F
Dew point
54.2F
Relative humidity
87%
Strongest wind today
16mph
Soil temperature, first probe
68F
Soil temperature, second probe
69F
Soil temperature, third probe
68F
Soil moisture, first probe
35%
Soil moisture, second probe
34%
Soil moisture, third probe
18%

Ranking Statistics

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.

  1. Reports receivedweight 35100.035.0 of 35 pointsMissouri median 98.9168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1030.23.0 of 10 pointsMissouri median 94.3half its reports arrived within 45 min
  3. Continuityweight 10100.010.0 of 10 pointsMissouri median 100.0longest silence 63 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-19.7 of 20 points, at the medianMissouri median 98.5-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianMissouri median 100.0-
  6. 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
Schedule
every houron the hour's :00
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
168 of 168100% of its schedule
Days reported, 30 days
29 of 30
Longest silence, 7 days
1 h 41 minfrom Oct 15, 9:00 PM
Latest report
Oct 15, 9:00 PMlocal time
Time to reach Storm Station
45 min9 in 10 within 53 min

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.

Chart of the 1,014 ranked stations in Missouri on Oct 16 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 6; 10 to 19 per cent, 7; 20 to 29 per cent, 24; 30 to 39 per cent, 4; 40 to 49 per cent, 66; 50 to 59 per cent, 93; 60 to 69 per cent, 20; 70 to 79 per cent, 58; 80 to 89 per cent, 91; 90 to 99 per cent, 348; 100 per cent, 297. Mark Twain HS received 100.0 per cent, 168 of 168 scheduled reports, rank 686 of 1,014.WHERE IT RANKS IN MISSOURI, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 686 OF 1,014PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9610 to 19720 to 292430 to 39440 to 496650 to 599360 to 692070 to 795880 to 899190 to 99348100297STATIONS, LOG SCALE
Chart of Mark Twain HS's rank in Missouri by how it reported, day by day, from 2026-09-28 to 2026-10-16: 2026-09-28 rank 369 of 576; 2026-09-29 rank 356 of 598; 2026-09-30 rank 422 of 604; 2026-10-01 rank 393 of 600; 2026-10-02 rank 795 of 893; 2026-10-03 rank 795 of 893; 2026-10-04 rank 809 of 904; 2026-10-05 rank 761 of 1,014; 2026-10-06 rank 767 of 1,030; 2026-10-07 rank 780 of 1,051; 2026-10-08 rank 766 of 1,022; 2026-10-09 rank 758 of 998; 2026-10-10 rank 759 of 998; 2026-10-11 rank 677 of 995; 2026-10-12 rank 666 of 994; 2026-10-13 rank 663 of 981; 2026-10-14 rank 677 of 976; 2026-10-15 rank 695 of 990; 2026-10-16 rank 686 of 1,014.ITS RANK IN MISSOURI, DAY BY DAYRANK, FIRST AT THE TOP12505007501,000Sep 28Oct 2Oct 6Oct 10Oct 14Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
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
DayRankStations rankedShare received
Oct 16, 20266861,014100.0%
Oct 15, 2026695990100.0%
Oct 14, 202667797699.4%
Oct 13, 202666398199.4%
Oct 12, 202666699499.4%
Oct 11, 202667799599.4%
Oct 10, 202675999895.2%
Oct 9, 202675899895.2%
Oct 8, 20267661,02295.2%
Oct 7, 20267801,05195.2%
Oct 6, 20267671,03095.2%
Oct 5, 20267611,01495.0%
Oct 4, 202680990494.1%
Oct 3, 202679589399.1%
Oct 2, 202679589399.1%
Oct 1, 202639360098.8%
Sep 30, 202642260498.4%
Sep 29, 2026356598100.0%
Sep 28, 2026369576100.0%
Temperature and Dew point at Mark Twain HS, temperature from 58.1 to 77.2, the latest 58.1; dew point from 54.2 to 70.7, the latest 54.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF50607080Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMTEMPERATUREDEW POINT
Relative humidity at Mark Twain HS, relative humidity from 73 to 98, the latest 87, in per cent.RELATIVE HUMIDITY%708090100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Wind at Mark Twain HS, wind from 0 to 16, the latest 16, in miles an hour.WINDmph05101520Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Wind direction at Mark Twain HS, wind direction from 26 to 350, the latest 313, in degrees.WIND DIRECTION°090180270360Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Reports received at Mark Twain HS, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
The readings these charts were drawn from, as a table
HourTemperature FDew point FRelative humidity %Wind mphWind direction °Reports
Thu 15, 9 PM58.154.287--1
Thu 15, 8 PM64.061.090163131
Thu 15, 7 PM71.266.485112991
Thu 15, 6 PM73.466.57972681
Thu 15, 5 PM74.567.27872611
Thu 15, 4 PM77.067.673102701
Thu 15, 3 PM77.270.179122541
Thu 15, 2 PM74.570.78892391
Thu 15, 1 PM72.570.39382181
Thu 15, 12 PM70.069.19761861
Thu 15, 11 AM66.766.19861561
Thu 15, 10 AM64.964.09761291
Thu 15, 9 AM62.461.29681151
Thu 15, 8 AM62.460.69461021
Thu 15, 7 AM63.060.99341061
Thu 15, 6 AM63.361.2935831
Thu 15, 5 AM62.661.7974761
Thu 15, 4 AM62.261.6984391
Thu 15, 3 AM62.861.99733501
Thu 15, 2 AM61.360.7981391
Thu 15, 1 AM61.560.99813141
Thu 15, 12 AM61.760.5960-1
Wed 14, 11 PM63.361.5941261
Temperature and Dew point at Mark Twain HS, temperature from 53.6 to 94.5, the latest 58.1; dew point from 42.6 to 70.7, the latest 54.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF406080100Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15TEMPERATUREDEW POINT
Relative humidity at Mark Twain HS, relative humidity from 21 to 98, the latest 87, in per cent.RELATIVE HUMIDITY%20406080100Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Wind at Mark Twain HS, wind from 0 to 16, the latest 16, in miles an hour.WINDmph05101520Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Wind direction at Mark Twain HS, wind direction from 12 to 353, the latest 313, in degrees.WIND DIRECTION°090180270360Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Reports received at Mark Twain HS, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
The readings these charts were drawn from, as a table
HourTemperature FDew point FRelative humidity %Wind mphWind direction °Reports
Thu 15, 9 PM58.154.287--1
Thu 15, 8 PM64.061.090163131
Thu 15, 7 PM71.266.485112991
Thu 15, 6 PM73.466.57972681
Thu 15, 5 PM74.567.27872611
Thu 15, 4 PM77.067.673102701
Thu 15, 3 PM77.270.179122541
Thu 15, 2 PM74.570.78892391
Thu 15, 1 PM72.570.39382181
Thu 15, 12 PM70.069.19761861
Thu 15, 11 AM66.766.19861561
Thu 15, 10 AM64.964.09761291
Thu 15, 9 AM62.461.29681151
Thu 15, 8 AM62.460.69461021
Thu 15, 7 AM63.060.99341061
Thu 15, 6 AM63.361.2935831
Thu 15, 5 AM62.661.7974761
Thu 15, 4 AM62.261.6984391
Thu 15, 3 AM62.861.99733501
Thu 15, 2 AM61.360.7981391
Thu 15, 1 AM61.560.99813141
Thu 15, 12 AM61.760.5960-1
Wed 14, 11 PM63.361.5941261
Wed 14, 10 PM65.562.2893461
Wed 14, 9 PM65.763.09153481
Wed 14, 8 PM66.763.0884141
Wed 14, 7 PM68.464.48753531
Wed 14, 6 PM70.265.5852501
Wed 14, 5 PM70.565.18311341
Wed 14, 4 PM71.264.78032591
Wed 14, 3 PM71.864.97932691
Wed 14, 2 PM70.965.18243361
Wed 14, 1 PM69.165.08743491
Wed 14, 12 PM68.964.8873121
Wed 14, 11 AM67.364.29043341
Wed 14, 10 AM65.764.29553471
Wed 14, 9 AM66.464.69463501
Wed 14, 8 AM67.365.89553281
Wed 14, 7 AM67.867.29853321
Wed 14, 6 AM67.867.29852651
Wed 14, 5 AM67.666.79752401
Wed 14, 4 AM67.866.6965291
Wed 14, 3 AM69.667.19241911
Wed 14, 2 AM68.767.596122671
Wed 14, 1 AM67.665.59382651
Wed 14, 12 AM68.066.59551701
Tue 13, 11 PM68.766.99461261
Tue 13, 10 PM78.669.27392871
Tue 13, 9 PM79.067.96911611
Tue 13, 8 PM80.667.76521551
Tue 13, 7 PM84.668.15811991
Tue 13, 6 PM90.068.24931821
Tue 13, 5 PM91.467.64672011
Tue 13, 4 PM93.967.34282201
Tue 13, 3 PM94.568.54392231
Tue 13, 2 PM91.868.04692201
Tue 13, 1 PM90.368.54992281
Tue 13, 12 PM88.067.65172341
Tue 13, 11 AM85.166.55472391
Tue 13, 10 AM81.065.35992441
Tue 13, 9 AM75.661.26192401
Tue 13, 8 AM70.056.86372321
Tue 13, 7 AM66.053.96542211
Tue 13, 6 AM68.753.35842261
Tue 13, 5 AM69.351.95442231
Tue 13, 4 AM69.851.45242251
Tue 13, 3 AM71.251.14962281
Tue 13, 2 AM70.253.35562201
Tue 13, 1 AM69.455.86242141
Tue 13, 12 AM70.955.85932051
Mon 12, 11 PM73.955.75332231
Mon 12, 10 PM74.857.05442111
Mon 12, 9 PM77.758.15142041
Mon 12, 8 PM80.458.34751981
Mon 12, 7 PM83.559.34452051
Mon 12, 6 PM88.357.93662001
Mon 12, 5 PM90.959.435112211
Mon 12, 4 PM91.960.335132211
Mon 12, 3 PM91.660.836142241
Mon 12, 2 PM92.561.636122221
Mon 12, 1 PM89.659.837122231
Mon 12, 12 PM87.459.439112171
Mon 12, 11 AM85.159.442102211
Mon 12, 10 AM80.457.74682131
Mon 12, 9 AM73.957.25692021
Mon 12, 8 AM70.556.86281921
Mon 12, 7 AM67.855.66561891
Mon 12, 6 AM68.555.46351891
Mon 12, 5 AM68.054.96351921
Mon 12, 4 AM67.554.06241921
Mon 12, 3 AM66.653.26231991
Mon 12, 2 AM67.653.76131971
Mon 12, 1 AM67.155.36631911
Mon 12, 12 AM66.057.17321841
Sun 11, 11 PM68.457.46821851
Sun 11, 10 PM70.256.66221771
Sun 11, 9 PM69.453.05631571
Sun 11, 8 PM68.750.95311531
Sun 11, 7 PM75.749.74001171
Sun 11, 6 PM82.449.63212031
Sun 11, 5 PM89.648.02442141
Sun 11, 4 PM91.050.32552131
Sun 11, 3 PM90.750.02562091
Sun 11, 2 PM89.651.22762121
Sun 11, 1 PM88.254.63252201
Sun 11, 12 PM83.855.53842191
Sun 11, 11 AM77.756.44852051
Sun 11, 10 AM70.253.35541821
Sun 11, 9 AM64.851.96351671
Sun 11, 8 AM58.551.37741621
Sun 11, 7 AM54.550.48621631
Sun 11, 6 AM53.650.18831491
Sun 11, 5 AM54.350.88821391
Sun 11, 4 AM53.850.38821531
Sun 11, 3 AM55.450.68421601
Sun 11, 2 AM58.151.37811721
Sun 11, 1 AM58.550.67511841
Sun 11, 12 AM63.351.76631431
Sat 10, 11 PM63.752.16641441
Sat 10, 10 PM62.652.36941421
Sat 10, 9 PM66.453.06231411
Sat 10, 8 PM68.253.35931381
Sat 10, 7 PM72.751.34741391
Sat 10, 6 PM80.252.33851401
Sat 10, 5 PM84.452.93481401
Sat 10, 4 PM87.342.62181511
Sat 10, 3 PM86.551.43071551
Sat 10, 2 PM86.251.13071521
Sat 10, 1 PM85.652.33261591
Sat 10, 12 PM82.952.43561581
Sat 10, 11 AM77.452.54251631
Sat 10, 10 AM70.252.85451881
Sat 10, 9 AM62.251.16751661
Sat 10, 8 AM57.449.27421611
Sat 10, 7 AM53.648.28231591
Sat 10, 6 AM54.546.77511421
Sat 10, 5 AM58.348.67011441
Sat 10, 4 AM59.749.56911611
Sat 10, 3 AM62.249.96421681
Sat 10, 2 AM64.850.15931741
Sat 10, 1 AM65.550.35831741
Sat 10, 12 AM68.550.75331641
Fri 9, 11 PM71.451.85031681
Fri 9, 10 PM73.653.85041691
Fri 9, 9 PM72.155.55641661
Fri 9, 8 PM73.456.75631481
Fri 9, 7 PM74.856.55331491
Fri 9, 6 PM84.957.23921591
Fri 9, 5 PM88.256.33461931
Fri 9, 4 PM88.554.83271931
Fri 9, 3 PM89.656.63382051
Fri 9, 2 PM88.956.03382051
Fri 9, 1 PM85.657.13871921
Fri 9, 12 PM82.654.43871801
Fri 9, 11 AM75.449.44051491
Fri 9, 10 AM70.748.34541371
Fri 9, 9 AM66.046.3494631
Fri 9, 8 AM60.447.36221491
Fri 9, 7 AM61.545.75631321
Fri 9, 6 AM60.346.86141621
Fri 9, 5 AM60.146.66131681
Fri 9, 4 AM59.946.06031651
Fri 9, 3 AM58.344.96121631
Fri 9, 2 AM59.944.25611521
Fri 9, 1 AM61.345.05521351
Fri 9, 12 AM60.146.66111501
Thu 8, 11 PM59.446.86321551
High and Low at Mark Twain HS, high from 66.0 to 100.4, the latest 77.2; low from 45.9 to 74.7, the latest 58.1, in degrees Fahrenheit.HIGH AND LOWF406080100120Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12HIGHLOW
Highest dew point and Lowest dew point at Mark Twain HS, highest dew point from 47.5 to 75.4, the latest 70.7; lowest dew point from 37.6 to 70.0, the latest 54.2, in degrees Fahrenheit.HIGHEST DEW POINT AND LOWEST DEW POINTF304050607080Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12HIGHEST DEW POINTLOWEST DEW POINT
Highest humidity and Lowest humidity at Mark Twain HS, highest humidity from 62 to 98, the latest 98; lowest humidity from 20 to 80, the latest 73, in per cent.HIGHEST HUMIDITY AND LOWEST HUMIDITY%20406080100Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12HIGHEST HUMIDITYLOWEST HUMIDITY
Strongest gust at Mark Twain HS, strongest gust from 8 to 31, the latest 27, in miles an hour.STRONGEST GUSTmph010203040Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayHigh FLow FHighest dew point FLowest dew point FHighest humidity %Lowest humidity %Strongest gust mph
Oct 1577.258.170.754.2987327
Oct 1471.863.367.561.5987925
Oct 1394.566.069.251.1944231
Oct 1292.566.061.653.2733523
Oct 1191.053.657.448.0882414
Oct 1087.353.653.342.6822115
Oct 989.658.357.244.2623217
Oct 884.748.956.038.8972011
Oct 788.555.958.446.5813513
Oct 681.346.647.541.0852715
Oct 575.245.951.637.6942610
Oct 478.645.953.044.1963515
Oct 375.045.947.938.5892812
Oct 271.653.461.240.1983316
Oct 177.064.469.962.3986317
Sep 3090.366.664.953.1773717
Sep 2984.252.254.544.6922715
Sep 2879.057.959.147.3973312
Sep 2766.755.259.750.594718
Sep 2670.260.661.351.4925612
Sep 2572.956.762.555.3966311
Sep 2466.055.458.153.695699
Sep 2370.057.756.051.6865815
Sep 2266.760.462.252.1987313
Sep 2169.663.766.461.0988013
Sep 2087.470.070.563.4954815
Sep 1997.273.071.059.7923016
Sep 1892.574.775.470.0965412
Sep 17100.472.973.467.1923610

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.

1The air

Contents

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.

Chart of the air at Mark Twain HS: temperature 58.1 degrees Fahrenheit and dew point 54.2, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT S2225FIG. B THE AIR AT MARK TWAIN HSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 900 FT ABOVE THE STATION, AT 53.3 FTEMPERATURE 58.1 FDEW POINT 54.2 FSPREAD 3.9 FRELATIVE HUMIDITY 87 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEMark Twain HS, the airSTATION REPORT · SCAN S2225TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-S2225-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

From the Field Book

2The column

Contents

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.

Section from sea level of where Mark Twain HS stands in the atmosphere, height to scale: the station 719 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.15 inches of mercury, and temperature, 56.4 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT S2225FIG. D WHERE MARK TWAIN HS STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREMARK TWAIN HS3 PER CENT OF THE AIR BELOW IT719 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.15 inHgSTANDARD TEMPERATURE HERE56.4 FTEMPERATURE, REPORTED58.1 FTITLEMark Twain HS, the columnSTATION REPORT · SCAN S2225TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-S2225-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

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.

Elevation of the noon sun at Mark Twain HS, angles true: on Oct 16 it stands 41 degrees above the horizon, against 74 at the June solstice, 50 at the equinoxes and 27 at the December solstice; the day is 10 h 59 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT S2225FIG. E THE SUN AT MARK TWAIN HSELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 74°EQUINOXES 50°DECEMBER SOLSTICE 27°OCT 16, 41°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 59 MINLEVEL GROUND TAKES 66 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 39.51 N; THE SUN'S DECLINATION -9.1°TITLEMark Twain HS, the sunSTATION REPORT · SCAN S2225TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-S2225-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 719 ft above sea level. Its report of Oct 15, 2026, 9:00 PM local time is written on the sensors that made it.

Elevation of the instrument, Mark Twain HS, each sensor drawn and labelled with what it read: antenna, sending by satellite, last heard oct 15, 2026, 9:00 pm local time; air temperature, 58.1 f, dew point 54.2 f.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT S2225FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READ, OCT 15, 2026, 9:00 PM LOCAL TIMEANTENNA, SENDING BY SATELLITELAST HEARD OCT 15, 2026, 9:00 PM LOCAL TIMEAIR TEMPERATURE58.1 F, DEW POINT 54.2 FPRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEMark Twain HS, the instrumentSTATION REPORT · SCAN S2225TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-S2225-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

What this instrument measures for

1 place reads it as one of the nearest to it.

Near Mark Twain HS