Storm Station
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At a tide gauge

DCP network, identified by the register

Identifier
NDBC-LDTM4
Latitude
43.94700 N
Longitude
86.44100 W
Elevation
-
Rank
936of 979 in Michigan, Oct 16
Observed
3:30 AMEDT, 58 minutes ago
Air temperature
53.6F
Dew point
51F
Relative humidity
91%
Wind
7mph
Gust
10mph
Wind direction
330°

Ranking Statistics

On the radar over LudingtonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a tide gauge

Drawn as the kind of place it stands at. 16 instruments in Michigan stand at one.

Station charts

Ludington Report

Rank 936 of 979 in Michigan, 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 score70.0of 100

Michigan median
95.5the median score of 979 stations
Scoring higher
935stations in Michigan
Sharing its score
1no other station
Points deducted
30.013.9 reports received, 6.6 arrival, 6.1 continuity, 2.7 accuracy, 0.8 forecast check
Counted at the median
Forecast checknot measured at this station; Michigan median 92.3
Next above
NDBC-SVNM4rank 935; ahead on 247 score 70.1 against 70.0
Next below
NDBC-DTLM4rank 937; behind on 247 score 70.0 against 69.9

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 3560.421.1 of 35 pointsMichigan median 98.2338 of 560 scheduled reports received in 7 days
  2. Arrivalweight 1034.33.4 of 10 pointsMichigan median 96.9half its reports arrived within 43 min
  3. Continuityweight 1038.83.9 of 10 pointsMichigan median 100.0longest silence 6.3 h, on a schedule of one report every 18 min
  4. Accuracyweight 2086.517.3 of 20 pointsMichigan median 100.0its temperature against the airport station KLDM, 1.8 miles away, over 161 readings: typical difference 2.6 °F beyond a steady offset of +0.4 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsMichigan median 100.00 of 161 readings failed their check against its reference station
  6. Forecast checkweight 10-9.2 of 10 points, at the medianMichigan median 92.3-

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 (54 min), none for 72 (21.6 h)
Accuracy
Full marks within 1.7 °F of its reference, typically, none beyond 8.2 °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
936of 979 in Michigan, Oct 16
Schedule
every 18 minon the hour's :18, :30 and :48
Reports received, 24 hours
59 of 8073.7% of its schedule, 65 reports in all
Reports received, 7 days
358 of 56063.9% of its schedule, 410 reports in all
Days reported, 30 days
-
Longest silence, 7 days
6 h 18 minfrom Oct 14, 9:00 AM
Latest report
Oct 16, 7:30 AMlocal time
Time to reach Storm Station
43 min9 in 10 within 52 min
Against its reference, 30 days
+0.4 °Fwarmer than the airport station KLDM, 1.8 miles away, on average over 173 readings; typical difference 2.5 °F

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

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

Its schedule is one report every 18 min, 80 in 24 hours. Two reports in the same 18 min count as one received.

Chart of the 979 ranked stations in Michigan 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, 1; 10 to 19 per cent, 7; 20 to 29 per cent, 23; 30 to 39 per cent, 1; 40 to 49 per cent, 51; 50 to 59 per cent, 128; 60 to 69 per cent, 37; 70 to 79 per cent, 64; 80 to 89 per cent, 94; 90 to 99 per cent, 242; 100 per cent, 331. Ludington received 60.3 per cent, 338 of 560 scheduled reports, rank 936 of 979.WHERE IT RANKS IN MICHIGAN, Oct 16THIS ONE: 60.3%, 338 OF 560, RANK 936 OF 979PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 19720 to 292330 to 39140 to 495150 to 5912860 to 693770 to 796480 to 899490 to 99242100331STATIONS, LOG SCALE
Chart of Ludington's rank in Michigan by how it reported, day by day, from 2026-10-11 to 2026-10-16: 2026-10-11 rank 966 of 976; 2026-10-12 rank 944 of 964; 2026-10-13 rank 917 of 961; 2026-10-14 rank 934 of 975; 2026-10-15 rank 946 of 984; 2026-10-16 rank 936 of 979.ITS RANK IN MICHIGAN, DAY BY DAYRANK, FIRST AT THE TOP12505007501,000Oct 11Oct 12Oct 13Oct 14Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%331
90 to 99%242
80 to 89%94
70 to 79%64
60 to 69%37
50 to 59%128
40 to 49%51
30 to 39%1
20 to 29%23
10 to 19%7
0 to 9%1
DayRankStations rankedShare received
Oct 16, 202693697960.3%
Oct 15, 202694698450.1%
Oct 14, 202693497544.1%
Oct 13, 202691796133.7%
Oct 12, 202694496423.3%
Oct 11, 202696697611.7%

Station report

Ludington, 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 16 the noon sun stands 37 degrees above the horizon at 43.95 N, and the day is 10 h 49 min long. Level ground there takes 60 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Ludington, angles true: on Oct 16 it stands 37 degrees above the horizon, against 69 at the June solstice, 46 at the equinoxes and 23 at the December solstice; the day is 10 h 49 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-LDTM4FIG. E THE SUN AT LUDINGTONELEVATION 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 46°DECEMBER SOLSTICE 23°OCT 16, 37°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 49 MINLEVEL GROUND TAKES 60 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 43.95 N; THE SUN'S DECLINATION -9.1°TITLELudington, the sunSTATION REPORT · DCP NDBC-LDTM4TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-NDBCLDTM4-1DRAWN 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, Ludington, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-LDTM4FIG. 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 SCALETITLELudington, the instrumentSTATION REPORT · DCP NDBC-LDTM4TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-NDBCLDTM4-2DRAWN 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

What this instrument measures for

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

Near Ludington

Gauges

Weather instruments

Places