Storm Station

At a tide gauge

DCP network, identified by the register

Identifier
NDBC-PTWW1
Latitude
48.11100 N
Longitude
122.76000 W
Elevation
-
Rank
1,443of 1,450 in Washington, Oct 11
Observed
12:48 AMPDT, 1 hour ago
Wind
6mph
Gust
9mph
Wind direction
240°

Ranking Statistics

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

At a tide gauge

Drawn as the kind of place it stands at. 10 instruments in Washington stand at one.

Station charts

Port Townsend Report

Rank 1,443 of 1,450 in Washington, 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 score54.9of 100

Washington median
93.1the median score of 1,450 stations
Scoring higher
1,441stations in Washington
Sharing its score
2ranks 1,442 to 1,443
Points deducted
45.130.9 reports received, 6.9 arrival, 4.9 accuracy, 1.6 continuity, 0.8 forecast check
Counted at the median
Forecast checknot measured at this station; Washington median 92.4
Next above
EW4723rank 1,442; ahead on reports received 23.0% against 11.6%
Next below
DW7465rank 1,444; behind on 247 score 54.9 against 54.7

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 3511.64.1 of 35 pointsWashington median 97.665 of 560 scheduled reports received in 7 days
  2. Arrivalweight 1031.33.1 of 10 pointsWashington median 88.7half its reports arrived within 44 min
  3. Continuityweight 1083.98.4 of 10 pointsWashington median 100.0longest silence 1.5 h, on a schedule of one report every 18 min
  4. Accuracyweight 2075.315.1 of 20 pointsWashington median 94.1its temperature against the airport station K0S9, 4.5 miles away, over 31 readings: typical difference 3.6 °F beyond a steady offset of +1.2 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsWashington median 100.00 of 31 readings failed their check against its reference station
  6. Forecast checkweight 10-9.2 of 10 points, at the medianWashington median 92.4-

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 1.9 °F of its reference, typically, none beyond 8.4 °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
1,443of 1,450 in Washington, Oct 11
Schedule
every 18 minon the hour's :00, :18, :30 and :48
Reports received, 24 hours
64 of 8080.0% of its schedule, 68 reports in all
Reports received, 7 days
97 of 56017.3% of its schedule, 104 reports in all
Days reported, 30 days
-
Longest silence, 7 days
1 h 30 minfrom Oct 10, 7:30 AM
Latest report
Oct 11, 7:48 AMlocal time
Time to reach Storm Station
43 min9 in 10 within 53 min
Against its reference, 30 days
+2.8 °Fwarmer than the airport station K0S9, 4.5 miles away, on average over 40 readings; typical difference 5.3 °F; also compared with 1 other reference station

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 1,450 ranked stations in Washington 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, 1; 10 to 19 per cent, 38; 20 to 29 per cent, 27; 30 to 39 per cent, 35; 40 to 49 per cent, 66; 50 to 59 per cent, 165; 60 to 69 per cent, 27; 70 to 79 per cent, 191; 80 to 89 per cent, 86; 90 to 99 per cent, 523; 100 per cent, 291. Port Townsend received 11.6 per cent, 65 of 560 scheduled reports, rank 1,443 of 1,450.WHERE IT RANKS IN WASHINGTON, Oct 11THIS ONE: 11.6%, 65 OF 560, RANK 1,443 OF 1,450PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 193820 to 292730 to 393540 to 496650 to 5916560 to 692770 to 7919180 to 898690 to 99523100291STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%291
90 to 99%523
80 to 89%86
70 to 79%191
60 to 69%27
50 to 59%165
40 to 49%66
30 to 39%35
20 to 29%27
10 to 19%38
0 to 9%1

Station report

Port Townsend, 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 35 degrees above the horizon at 48.11 N, and the day is 10 h 55 min long. Level ground there takes 57 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Port Townsend, angles true: on Oct 11 it stands 35 degrees above the horizon, against 65 at the June solstice, 42 at the equinoxes and 18 at the December solstice; the day is 10 h 55 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-PTWW1FIG. E THE SUN AT PORT TOWNSENDELEVATION 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 65°EQUINOXES 42°DECEMBER SOLSTICE 18°OCT 11, 35°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 55 MINLEVEL GROUND TAKES 57 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 48.11 N; THE SUN'S DECLINATION -7.3°TITLEPort Townsend, the sunSTATION REPORT · DCP NDBC-PTWW1TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-11IDSR-NDBCPTWW1-1DRAWN 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, Port Townsend, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT NDBC-PTWW1FIG. 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 SCALETITLEPort Townsend, the instrumentSTATION REPORT · DCP NDBC-PTWW1TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-11IDSR-NDBCPTWW1-2DRAWN 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

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