Storm Station

At a lighthouse

DCP network, identified by the register

Identifier
NDBC-SPTM4
Latitude
44.71300 N
Longitude
83.27300 W
Elevation
-
Rank
970of 976 in Michigan, Oct 11

Ranking Statistics

On the radar over Sturgeon Point LightReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a lighthouse

Drawn as the kind of place it stands at. 5 instruments in Michigan stand at one.

Station charts

Sturgeon Point Light Report

Rank 970 of 976 in Michigan, Oct 11. 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 score53.8of 100

Michigan median
94.8the median score of 976 stations
Scoring higher
969stations in Michigan
Sharing its score
1no other station
Points deducted
46.231.7 reports received, 10.0 arrival, 4.2 continuity, 0.4 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Michigan median 100.0, 100.0, 96.1
Next above
NDBC-PTIM4rank 969; ahead on 247 score 54.1 against 53.8
Next below
NDBC-PRIM4rank 971; behind on 247 score 53.8 against 53.1

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 359.53.3 of 35 pointsMichigan median 97.016 of 168 scheduled reports received in 7 days
  2. Arrivalweight 100.00.0 of 10 pointsMichigan median 99.9half its reports arrived within 63 min
  3. Continuityweight 1058.55.9 of 10 pointsMichigan median 100.0longest silence 11.2 h, on a schedule of one report every 60 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianMichigan median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianMichigan median 100.0-
  6. Forecast checkweight 10-9.6 of 10 points, at the medianMichigan median 96.1-

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
Rank
970of 976 in Michigan, Oct 11
Schedule
every houron the hour's :50
Reports received, 24 hours
8 of 2433.3% of its schedule
Reports received, 7 days
16 of 1689.5% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
17 hoursfrom Oct 10, 12:50 PM
Latest report
Oct 10, 12:50 PMlocal time
Time to reach Storm Station
63 min9 in 10 within 63 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.

Chart of the 976 ranked stations in Michigan on Oct 11 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, 3; 10 to 19 per cent, 49; 20 to 29 per cent, 13; 30 to 39 per cent, 6; 40 to 49 per cent, 80; 50 to 59 per cent, 114; 60 to 69 per cent, 9; 70 to 79 per cent, 65; 80 to 89 per cent, 86; 90 to 99 per cent, 306; 100 per cent, 245. Sturgeon Point Light received 9.5 per cent, 16 of 168 scheduled reports, rank 970 of 976.WHERE IT RANKS IN MICHIGAN, Oct 11THIS ONE: 9.5%, 16 OF 168, RANK 970 OF 976PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9310 to 194920 to 291330 to 39640 to 498050 to 5911460 to 69970 to 796580 to 898690 to 99306100245STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%245
90 to 99%306
80 to 89%86
70 to 79%65
60 to 69%9
50 to 59%114
40 to 49%80
30 to 39%6
20 to 29%13
10 to 19%49
0 to 9%3

Station report

Sturgeon Point Light, in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 11 the noon sun stands 38 degrees above the horizon at 44.71 N, and the day is 11 h 02 min long. Level ground there takes 62 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Sturgeon Point Light, angles true: on Oct 11 it stands 38 degrees above the horizon, against 69 at the June solstice, 45 at the equinoxes and 22 at the December solstice; the day is 11 h 02 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-SPTM4FIG. E THE SUN AT STURGEON POINT LIGHTELEVATION 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 69°EQUINOXES 45°DECEMBER SOLSTICE 22°OCT 11, 38°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 02 MINLEVEL GROUND TAKES 62 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 44.71 N; THE SUN'S DECLINATION -7.2°TITLESturgeon Point Light, the sunSTATION REPORT · DCP NDBC-SPTM4TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-11IDSR-NDBCSPTM4-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A data collection platform. Its sensors, as its network builds them.

Elevation of a data collection platform, Sturgeon Point Light, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-SPTM4FIG. F THE INSTRUMENTELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE-PRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLESturgeon Point Light, the instrumentSTATION REPORT · DCP NDBC-SPTM4TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-11IDSR-NDBCSPTM4-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001

What it seesMoon and tides FB-CLK-003Hurricane FB-EVT-043Nor'easter FB-EVT-066Flash flood FB-EVT-100Coastal flood FB-EVT-105

Near Sturgeon Point Light

Gauges

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