Saint Paul Island CRN

At a river or reservoir gauge in Aleutians West, Alaska

At a river or reservoir gauge

DCP network, identified by the register

Identifier: SNPA2
Latitude: 57.15750 N
Longitude: 170.21190 W
Elevation: 20 ft
Rank: 348of 1,023 in Alaska, Oct 16
Observed: 7:25 PMAKDT, 1 hour ago
Air temperature: 37.6F
High so far today: 41.5F
Low so far today: 37.6F
Dew point: 31F
Relative humidity: 77%
Precipitation today: 0in

On the radar over Saint Paul Island CRNReflectivity Storm tops Rain rate Rain, last 24 hours Forecast temperature Forecast rain total Every picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 208 instruments in Alaska stand at one.

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Station charts

Saint Paul Island CRN Report

Rank 348 of 1,023 in Alaska, 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 score97.7of 100

Alaska median: 96.0the median score of 1,023 stations
Scoring higher: 345stations in Alaska
Sharing its score: 12ranks 346 to 357
Points deducted: 2.32.3 arrival
Counted at the median: Forecast checknot measured at this station; Alaska median 100.0
Next above: RRVA2rank 347; ahead on median arrival 21 min 25 s against 21 min 26 s
Next below: GRAA2rank 352; behind on median arrival 21 min 26 s against 21 min 35 s
Sharing its rank: 3other stations, equal on every measure

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 pointsAlaska median 98.8168 of 168 scheduled reports received in 7 days
Arrivalweight 1077.17.7 of 10 pointsAlaska median 86.1half its reports arrived within 21 min
Continuityweight 10100.010.0 of 10 pointsAlaska median 100.0longest silence 85 min, on a schedule of one report every 60 min
Accuracyweight 20100.020.0 of 20 pointsAlaska median 100.0its temperature against the airport station PASN, 0.5 miles away, over 73 readings: typical difference 0.8 °F beyond a steady offset of -0.1 °F
Instrument checksweight 15100.015.0 of 15 pointsAlaska median 100.00 of 73 readings failed their check against its reference station
Forecast checkweight 10-10.0 of 10 points, at the medianAlaska median 100.0-

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 1.6 °F of its reference, typically, none beyond 8.1 °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: 348of 1,023 in Alaska, Oct 16
Schedule: every houron the hour's :25
Reports received, 24 hours: 24 of 24100% of its schedule
Reports received, 7 days: 168 of 168100% of its schedule, 171 reports in all
Days reported, 30 days: 29 of 30
Longest silence, 7 days: 85 minfrom Oct 11, 1:00 AM
Latest report: Oct 15, 6:25 PMlocal time
Time to reach Storm Station: 21 min9 in 10 within 22 min
Against its reference, 30 days: -0.1 °Fcooler than the airport station PASN, 0.5 miles away, on average over 160 readings; typical difference 0.9 °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 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%	325
90 to 99%	427
80 to 89%	89
70 to 79%	44
60 to 69%	43
50 to 59%	45
40 to 49%	23
30 to 39%	10
20 to 29%	12
10 to 19%	4
0 to 9%	1

Day	Rank	Stations ranked	Share received
Oct 16, 2026	348	1,023	100.0%
Oct 15, 2026	358	1,024	100.0%
Oct 14, 2026	331	1,022	100.0%
Oct 13, 2026	327	1,024	100.0%
Oct 12, 2026	347	1,026	100.0%
Oct 11, 2026	361	1,026	100.0%
Oct 10, 2026	320	1,003	100.0%
Oct 9, 2026	323	1,003	100.0%
Oct 8, 2026	400	1,002	99.4%
Oct 7, 2026	442	1,001	99.4%
Oct 6, 2026	438	992	99.4%
Oct 5, 2026	434	988	99.4%
Oct 4, 2026	287	958	99.4%
Oct 3, 2026	137	957	99.3%
Oct 2, 2026	140	957	99.3%
Oct 1, 2026	96	930	100.0%
Sep 30, 2026	101	931	100.0%
Sep 29, 2026	103	924	100.0%
Sep 28, 2026	104	899	100.0%
Sep 27, 2026	106	850	100.0%
Sep 26, 2026	104	839	100.0%

24 hours7 days30 days

The readings these charts were drawn from, as a table

Hour	Temperature F	Precipitation in	Reports
Thu 15, 7 PM	37.5	-	6
Thu 15, 6 PM	38.1	0.01	12
Thu 15, 5 PM	39.4	0.00	12
Thu 15, 4 PM	40.1	0.02	12
Thu 15, 3 PM	40.3	0.00	12
Thu 15, 2 PM	39.2	0.01	12
Thu 15, 1 PM	40.6	0.00	12
Thu 15, 12 PM	40.1	0.01	12
Thu 15, 11 AM	39.6	0.00	12
Thu 15, 10 AM	39.5	0.00	12
Thu 15, 9 AM	39.2	0.00	12
Thu 15, 8 AM	39.0	0.00	12
Thu 15, 7 AM	38.8	0.00	12
Thu 15, 6 AM	39.4	0.00	12
Thu 15, 5 AM	39.1	0.00	12
Thu 15, 4 AM	39.2	0.00	12
Thu 15, 3 AM	39.7	0.01	12
Thu 15, 2 AM	39.7	0.01	12
Thu 15, 1 AM	39.8	0.00	12
Thu 15, 12 AM	39.0	0.01	12

The readings these charts were drawn from, as a table

Hour	Temperature F	Precipitation in	Reports
Thu 15, 7 PM	37.5	-	6
Thu 15, 6 PM	38.1	0.01	12
Thu 15, 5 PM	39.4	0.00	12
Thu 15, 4 PM	40.1	0.02	12
Thu 15, 3 PM	40.3	0.00	12
Thu 15, 2 PM	39.2	0.01	12
Thu 15, 1 PM	40.6	0.00	12
Thu 15, 12 PM	40.1	0.01	12
Thu 15, 11 AM	39.6	0.00	12
Thu 15, 10 AM	39.5	0.00	12
Thu 15, 9 AM	39.2	0.00	12
Thu 15, 8 AM	39.0	0.00	12
Thu 15, 7 AM	38.8	0.00	12
Thu 15, 6 AM	39.4	0.00	12
Thu 15, 5 AM	39.1	0.00	12
Thu 15, 4 AM	39.2	0.00	12
Thu 15, 3 AM	39.7	0.01	12
Thu 15, 2 AM	39.7	0.01	12
Thu 15, 1 AM	39.8	0.00	12
Thu 15, 12 AM	39.0	0.01	12
Wed 14, 2 PM	39.8	0.00	12
Wed 14, 1 PM	41.1	0.00	12
Wed 14, 12 PM	40.4	0.00	12
Wed 14, 11 AM	40.0	0.01	12
Wed 14, 10 AM	39.1	0.00	12
Wed 14, 9 AM	38.9	0.00	12
Wed 14, 8 AM	39.3	0.00	12
Wed 14, 7 AM	39.9	0.02	12
Wed 14, 6 AM	39.4	0.06	12
Wed 14, 5 AM	38.7	0.01	12
Wed 14, 4 AM	39.2	0.02	12
Wed 14, 3 AM	38.7	0.01	12
Wed 14, 2 AM	38.9	0.00	12
Wed 14, 1 AM	39.0	0.01	12
Wed 14, 12 AM	38.4	0.00	12
Tue 13, 11 PM	38.9	0.02	12
Tue 13, 10 PM	39.5	0.03	12
Tue 13, 9 PM	38.7	0.00	12
Tue 13, 8 PM	36.8	0.00	12
Tue 13, 7 PM	36.7	0.00	12
Tue 13, 6 PM	40.6	0.00	12
Tue 13, 5 PM	42.3	0.01	12
Tue 13, 4 PM	42.3	0.00	12
Tue 13, 3 PM	43.7	0.00	12
Tue 13, 2 PM	44.1	0.00	12
Tue 13, 1 PM	43.1	-	6
Tue 13, 12 PM	42.5	0.00	6
Tue 13, 11 AM	40.0	0.00	12
Tue 13, 10 AM	34.5	0.02	12
Tue 13, 9 AM	31.8	0.00	12
Tue 13, 8 AM	30.0	0.00	12
Tue 13, 7 AM	29.5	0.00	12
Tue 13, 6 AM	29.0	0.00	12
Tue 13, 5 AM	29.0	0.00	12
Tue 13, 4 AM	29.7	0.00	12
Tue 13, 3 AM	32.3	0.00	12
Tue 13, 2 AM	31.7	0.00	12
Tue 13, 1 AM	31.4	0.00	12
Tue 13, 12 AM	32.2	0.00	12
Mon 12, 11 PM	32.7	0.01	12
Mon 12, 10 PM	34.4	0.01	12
Mon 12, 9 PM	32.2	0.00	12
Mon 12, 8 PM	33.6	0.00	12
Mon 12, 7 PM	37.9	0.01	12
Mon 12, 6 PM	40.1	0.00	12
Mon 12, 5 PM	41.7	0.01	12
Mon 12, 4 PM	42.1	0.00	12
Mon 12, 3 PM	44.0	0.01	12
Mon 12, 2 PM	44.3	0.00	12
Mon 12, 1 PM	45.1	0.00	12
Mon 12, 12 PM	43.5	0.00	12
Mon 12, 11 AM	43.1	0.00	12
Mon 12, 10 AM	40.0	0.00	12
Mon 12, 9 AM	35.8	0.00	12
Mon 12, 8 AM	35.8	0.00	12
Mon 12, 7 AM	37.0	0.01	12
Mon 12, 6 AM	36.5	0.00	12
Mon 12, 5 AM	37.6	0.02	12
Mon 12, 4 AM	38.5	0.00	12
Mon 12, 3 AM	37.7	0.00	12
Mon 12, 2 AM	37.4	0.00	12
Mon 12, 1 AM	37.7	0.00	12
Mon 12, 12 AM	38.8	0.03	12
Sun 11, 11 PM	40.0	0.00	12
Sun 11, 10 PM	39.8	0.00	12
Sun 11, 9 PM	40.2	0.01	12
Sun 11, 8 PM	39.9	-	6
Sun 11, 7 PM	42.4	0.00	6
Sun 11, 6 PM	43.2	0.00	12
Sun 11, 5 PM	44.4	0.00	12
Sun 11, 4 PM	44.9	0.00	12
Sun 11, 3 PM	45.4	0.00	12
Sun 11, 2 PM	45.4	0.00	12
Sun 11, 1 PM	46.2	0.00	12
Sun 11, 12 PM	45.8	0.00	12
Sun 11, 11 AM	44.6	0.00	12
Sun 11, 10 AM	43.3	0.00	12
Sun 11, 9 AM	41.6	0.00	12
Sun 11, 8 AM	41.1	0.01	12
Sun 11, 7 AM	41.3	0.00	12
Sun 11, 6 AM	41.6	0.00	12
Sun 11, 5 AM	41.6	0.00	12
Sun 11, 4 AM	42.0	0.00	12
Sun 11, 3 AM	42.2	0.00	12
Sun 11, 2 AM	42.3	0.00	12
Sun 11, 1 AM	42.2	-	6
Sun 11, 12 AM	42.5	0.00	6
Sat 10, 11 PM	42.6	0.00	12
Sat 10, 10 PM	43.0	0.00	12
Sat 10, 9 PM	43.2	0.01	12
Sat 10, 8 PM	43.5	0.01	12
Sat 10, 7 PM	44.1	0.00	12
Sat 10, 6 PM	44.8	0.00	12
Sat 10, 5 PM	45.2	0.00	12
Sat 10, 4 PM	45.5	0.01	12
Sat 10, 3 PM	45.4	0.00	12
Sat 10, 2 PM	46.4	0.00	12
Sat 10, 1 PM	46.6	0.00	12
Sat 10, 12 PM	45.2	0.00	12
Sat 10, 11 AM	44.4	0.00	12
Sat 10, 10 AM	43.7	0.05	12
Sat 10, 9 AM	44.2	0.00	12
Sat 10, 8 AM	44.1	0.00	12
Sat 10, 7 AM	44.4	-	12
Sat 10, 6 AM	44.3	-	12
Sat 10, 5 AM	44.7	0.00	12
Sat 10, 4 AM	44.4	0.00	12
Sat 10, 3 AM	44.8	0.00	12
Sat 10, 2 AM	44.7	0.00	12
Sat 10, 1 AM	44.8	0.00	12
Sat 10, 12 AM	44.5	0.00	12
Fri 9, 11 PM	44.9	0.00	12
Fri 9, 10 PM	44.5	0.00	12
Fri 9, 9 PM	44.5	0.00	12
Fri 9, 8 PM	44.7	0.00	12
Fri 9, 7 PM	44.7	0.00	12
Fri 9, 6 PM	45.2	0.00	12
Fri 9, 5 PM	45.9	0.00	12
Fri 9, 4 PM	46.4	0.00	12
Fri 9, 3 PM	45.8	0.00	12
Fri 9, 2 PM	47.3	0.00	12
Fri 9, 1 PM	46.1	0.00	12
Fri 9, 12 PM	45.0	0.07	12
Fri 9, 11 AM	44.0	0.02	12
Fri 9, 10 AM	44.7	0.07	12
Fri 9, 9 AM	44.0	0.00	12
Fri 9, 8 AM	44.6	0.00	12
Fri 9, 7 AM	44.1	0.00	12
Fri 9, 6 AM	43.4	0.00	12
Fri 9, 5 AM	43.4	0.00	12
Fri 9, 4 AM	43.6	0.00	12
Fri 9, 3 AM	44.0	0.00	12
Fri 9, 2 AM	43.9	0.00	12
Fri 9, 1 AM	44.2	0.00	12
Fri 9, 12 AM	44.4	0.00	12
Thu 8, 11 PM	44.4	0.00	12
Thu 8, 10 PM	44.0	0.00	12
Thu 8, 9 PM	44.0	0.00	12
Thu 8, 8 PM	44.1	0.00	12

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	Precipitation in
Oct 15	41.5	37.6	38.4	31.0	94	77	0	0.00
Oct 14	42.3	37.5	41.6	33.7	100	79	29	0.02
Oct 13	44.7	27.0	42.9	28.6	100	74	14	0.00
Oct 12	46.6	31.0	43.6	30.5	100	68	5	0.08
Oct 11	46.5	37.5	40.7	35.9	95	74	0	0.05
Oct 10	47.2	41.5	43.9	39.4	95	83	0	0.08
Oct 9	47.8	42.7	45.2	40.0	100	85	0	0.16
Oct 8	48.2	42.5	45.6	40.9	100	83	0	0.17
Oct 7	44.3	24.8	41.1	24.0	100	70	20	0.06
Oct 6	44.2	29.6	39.7	27.8	96	71	1	0.04
Oct 5	44.2	38.4	42.2	32.0	100	69	0	0.00
Oct 4	45.8	35.2	45.2	35.2	100	100	0	0.00
Oct 3	45.4	40.5	45.3	31.7	100	70	0	0.37
Oct 2	42.9	39.4	35.8	29.0	79	64	0	0.00
Oct 1	44.6	38.8	36.0	28.3	81	62	0	0.00
Sep 30	46.5	30.8	41.6	30.8	100	73	19	0.05
Sep 29	50.6	33.4	48.7	32.9	100	83	9	0.31
Sep 28	47.5	39.5	41.3	35.2	97	72	0	0.01
Sep 27	48.1	41.5	45.4	36.6	100	76	0	0.00
Sep 26	48.6	40.9	48.0	40.9	100	100	0	0.03
Sep 25	48.0	44.5	48.0	44.5	100	100	0	0.49
Sep 24	49.0	45.7	48.9	45.7	100	100	0	1.27
Sep 23	47.8	42.1	47.8	36.4	100	71	28	0.26
Sep 22	47.3	28.7	44.5	29.8	100	72	9	0.00
Sep 21	48.0	32.0	44.2	32.4	99	71	19	0.07
Sep 20	45.6	35.1	42.8	30.9	95	72	21	0.06
Sep 19	46.8	37.7	46.8	30.7	100	75	15	0.11
Sep 18	50.5	43.5	48.6	42.3	100	92	0	0.04
Sep 17	52.1	46.4	52.0	46.2	100	95	0	0.21

Station report

Saint Paul Island CRN, in 4 sheets

Drawn from its report of Oct 15, 2026, 6:25 PM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The air

Contents

37.6 F with a dew point of 31.0 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,500 ft up.

From the Field Book

FB-WAT-002, Fig. CHumidity variables
The same lift, worked for another air: how the humidity climbs as the air rises and cools.
FB-ENG-011, Fig. AWater vapour as a gas
How much vapour air can hold at each temperature, which sets the dew point.
FB-ENG-005, Fig. ALapse rates and stability
The dry rate the lifted air cools at, against the air around it.

2The column

Contents

At 20 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.90 inHg and the temperature at 58.9 F; it reports 37.6 F, 21.3 F colder than standard.

From the Field Book

FB-ENG-001, Fig. AAtmosphere in section
The whole standard atmosphere this station stands in, from the ground to the edge of space.
FB-ENG-003, Fig. CHydrostatic balance
Why a barometer 20 ft up reads less: it weighs only the air above it.

3The sun

Contents

On Oct 16 the noon sun stands 24 degrees above the horizon at 57.16 N, and the day is 10 h 04 min long. Level ground there takes 40 per cent of the noon sunlight a surface facing the sun would.

From the Field Book

FB-ENG-007, Fig. ARadiation budget
Where the sunlight that reaches this ground goes once it arrives.

4The instrument

Contents

A data collection platform, 20 ft above sea level. Its report of Oct 15, 2026, 6:25 PM local time is written on the sensors that made it.

From the Field Book

FB-INS-001, Fig. AWhat an instrument is
A surface station taken apart: what each of these sensors is.

The instrumentWhat an instrument is FB-INS-001

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

Saint Paul Island CRN

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At a river or reservoir gauge

What the snow tracker reads here

Every instrument in this state

Saint Paul Island CRN Report

Ranking Statistics

Saint Paul Island CRN, in 4 sheets

1The air

From the Field Book

2The column

From the Field Book

3The sun

From the Field Book

4The instrument

From the Field Book

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