Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
ACKC1
Latitude
38.63970 N
Longitude
121.15560 W
Elevation
-
Listed
Automatically, on 26 reports in 32 hours over the last seven days
Rank
4,208of 4,465 in California, Oct 16
Observed
9:31 AMPDT, 6 hours ago

Ranking Statistics

On the radar over Folsom 1S - Alder CreekReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 432 instruments in California stand at one.

Station charts

Folsom 1S - Alder Creek Report

Rank 4,208 of 4,465 in California, 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 score66.1of 100

California median
91.6the median score of 4,465 stations
Scoring higher
4,206stations in California
Sharing its score
2ranks 4,207 to 4,208
Points deducted
33.924.2 reports received, 5.1 continuity, 2.9 accuracy, 1.1 arrival, 0.8 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; California median 85.6, 100.0, 92.4
Next above
NDBC-OKXC1rank 4,207; ahead on reports received 58.0% against 30.9%
Next below
CW9206rank 4,209; behind on 247 score 66.1 against 65.8

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 3531.010.9 of 35 pointsCalifornia median 98.526 of 84 scheduled reports received in 7 days
  2. Arrivalweight 1089.59.0 of 10 pointsCalifornia median 81.2half its reports arrived within 23 min
  3. Continuityweight 1049.44.9 of 10 pointsCalifornia median 100.0longest silence 30 h, on a schedule of one report every 2 h
  4. Accuracyweight 20-17.1 of 20 points, at the medianCalifornia median 85.6-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianCalifornia median 100.0-
  6. Forecast checkweight 10-9.2 of 10 points, at the medianCalifornia 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 12 min, none at 2 h
Continuity
Full marks for a longest silence of 3 reports or less (6 h), none for 72 (144 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
4,208of 4,465 in California, Oct 16
Schedule
every 3 hourson the hour's :31
Reports received, 24 hours
3 of 837.5% of its schedule, 6 reports in all
Reports received, 7 days
18 of 5632.1% of its schedule, 28 reports in all
Days reported, 30 days
-
Longest silence, 7 days
30 hoursfrom Oct 13, 11:31 PM
Latest report
Oct 16, 9:31 AMlocal time
Time to reach Storm Station
23 min9 in 10 within 33 min

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

Its schedule is one report every 3 hours, 8 in 24 hours. Two reports in the same 3 hours count as one received.

Chart of the 4,465 ranked stations in California 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, 78; 10 to 19 per cent, 83; 20 to 29 per cent, 45; 30 to 39 per cent, 22; 40 to 49 per cent, 118; 50 to 59 per cent, 285; 60 to 69 per cent, 120; 70 to 79 per cent, 209; 80 to 89 per cent, 391; 90 to 99 per cent, 2,034; 100 per cent, 1,080. Folsom 1S - Alder Creek received 30.9 per cent, 26 of 84 scheduled reports, rank 4,208 of 4,465.WHERE IT RANKS IN CALIFORNIA, Oct 16THIS ONE: 30.9%, 26 OF 84, RANK 4,208 OF 4,465PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101001,0000 to 97810 to 198320 to 294530 to 392240 to 4911850 to 5928560 to 6912070 to 7920980 to 8939190 to 992,0341001,080STATIONS, LOG SCALE
Chart of Folsom 1S - Alder Creek's rank in California by how it reported, day by day, from 2026-09-27 to 2026-10-16: 2026-09-27 rank 3,093 of 3,141; 2026-09-28 rank 3,266 of 3,395; 2026-09-29 rank 3,365 of 3,460; 2026-09-30 rank 3,412 of 3,491; 2026-10-01 rank 3,499 of 3,586; 2026-10-02 rank 3,762 of 3,944; 2026-10-03 rank 3,762 of 3,944; 2026-10-04 rank 3,718 of 4,072; 2026-10-05 rank 4,094 of 4,333; 2026-10-06 rank 4,217 of 4,362; 2026-10-07 rank 4,207 of 4,381; 2026-10-08 rank 4,207 of 4,405; 2026-10-09 rank 4,221 of 4,400; 2026-10-10 rank 4,219 of 4,400; 2026-10-11 rank 4,254 of 4,428; 2026-10-12 rank 4,211 of 4,446; 2026-10-13 rank 4,259 of 4,464; 2026-10-14 rank 4,280 of 4,466; 2026-10-15 rank 4,296 of 4,462; 2026-10-16 rank 4,208 of 4,465.ITS RANK IN CALIFORNIA, DAY BY DAYRANK, FIRST AT THE TOP12,0004,0006,000Sep 27Oct 1Oct 5Oct 9Oct 13Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%1,080
90 to 99%2,034
80 to 89%391
70 to 79%209
60 to 69%120
50 to 59%285
40 to 49%118
30 to 39%22
20 to 29%45
10 to 19%83
0 to 9%78
DayRankStations rankedShare received
Oct 16, 20264,2084,46530.9%
Oct 15, 20264,2964,46221.4%
Oct 14, 20264,2804,46624.4%
Oct 13, 20264,2594,46425.5%
Oct 12, 20264,2114,44628.5%
Oct 11, 20264,2544,42831.5%
Oct 10, 20264,2194,40038.0%
Oct 9, 20264,2214,40038.0%
Oct 8, 20264,2074,40538.6%
Oct 7, 20264,2074,38136.9%
Oct 6, 20264,2174,36237.5%
Oct 5, 20264,0944,33336.9%
Oct 4, 20263,7184,07253.5%
Oct 3, 20263,7623,94451.2%
Oct 2, 20263,7623,94451.2%
Oct 1, 20263,4993,58646.4%
Sep 30, 20263,4123,49145.7%
Sep 29, 20263,3653,46051.0%
Sep 28, 20263,2663,39554.2%
Sep 27, 20263,0933,14156.5%
Reports received at Folsom 1S - Alder Creek, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.7516 PM9 PMOct 163 AM6 AM9 AM12 PM3 PM
Reports received at Folsom 1S - Alder Creek, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16

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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