Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
MHMC1
Latitude
37.35000 N
Longitude
121.63330 W
Elevation
-
Listed
Automatically, on 656 reports in 169 hours over the last seven days
Observed
12:30 PMPDT, 17 minutes ago
Precipitation today
0in

Ranking Statistics

At a river or reservoir gauge

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

Station charts

Mt. Hamilton Alert #1512 Report

Rank 1,469 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 score93.6of 100

California median
91.6the median score of 4,465 stations
Scoring higher
1,459stations in California
Sharing its score
37ranks 1,460 to 1,496
Points deducted
6.42.9 accuracy, 1.9 arrival, 0.8 reports received, 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
SHNC1rank 1,468; ahead on median arrival 19 min 25 s against 19 min 26 s
Next below
BIEC1rank 1,470; behind on median arrival 19 min 26 s against 19 min 35 s

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 3597.634.2 of 35 pointsCalifornia median 98.5656 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1081.18.1 of 10 pointsCalifornia median 81.2half its reports arrived within 19 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 45 min, on a schedule of one report every 15 min
  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 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (45 min), none for 72 (18 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
Schedule
every 15 minon the hour's :00, :15, :30 and :45
Reports received, 24 hours
94 of 9697.9% of its schedule, 99 reports in all
Reports received, 7 days
659 of 67298.0% of its schedule, 718 reports in all
Days reported, 30 days
30 of 30
Longest silence, 7 days
45 minfrom Oct 15, 9:45 AM
Latest report
Oct 16, 12:30 PMlocal time
Time to reach Storm Station
20 min9 in 10 within 20 min

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

Its schedule is one report every 15 min, 96 in 24 hours. Two reports in the same 15 min 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. Mt. Hamilton Alert #1512 received 97.6 per cent, 656 of 672 scheduled reports, rank 1,469 of 4,465.WHERE IT RANKS IN CALIFORNIA, Oct 16THIS ONE: 97.6%, 656 OF 672, RANK 1,469 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 Mt. Hamilton Alert #1512's rank in California by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 1,896 of 3,089; 2026-09-27 rank 1,904 of 3,141; 2026-09-28 rank 1,916 of 3,395; 2026-09-29 rank 2,293 of 3,460; 2026-09-30 rank 2,202 of 3,491; 2026-10-01 rank 2,381 of 3,586; 2026-10-02 rank 1,505 of 3,944; 2026-10-03 rank 1,504 of 3,944; 2026-10-04 rank 1,428 of 4,072; 2026-10-05 rank 1,405 of 4,333; 2026-10-06 rank 1,434 of 4,362; 2026-10-07 rank 1,438 of 4,381; 2026-10-08 rank 1,449 of 4,405; 2026-10-09 rank 1,438 of 4,400; 2026-10-10 rank 1,434 of 4,400; 2026-10-11 rank 1,410 of 4,428; 2026-10-12 rank 1,411 of 4,446; 2026-10-13 rank 1,471 of 4,464; 2026-10-14 rank 1,535 of 4,466; 2026-10-15 rank 1,460 of 4,462; 2026-10-16 rank 1,469 of 4,465.ITS RANK IN CALIFORNIA, DAY BY DAYRANK, FIRST AT THE TOP11,0002,0003,000Sep 26Sep 30Oct 4Oct 8Oct 12Oct 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, 20261,4694,46597.6%
Oct 15, 20261,4604,46297.6%
Oct 14, 20261,5354,46696.7%
Oct 13, 20261,4714,46497.0%
Oct 12, 20261,4114,44697.3%
Oct 11, 20261,4104,42897.6%
Oct 10, 20261,4344,40097.6%
Oct 9, 20261,4384,40097.6%
Oct 8, 20261,4494,40597.6%
Oct 7, 20261,4384,38198.5%
Oct 6, 20261,4344,36298.3%
Oct 5, 20261,4054,33398.3%
Oct 4, 20261,4284,07298.2%
Oct 3, 20261,5043,94498.1%
Oct 2, 20261,5053,94498.1%
Oct 1, 20262,3813,58698.2%
Sep 30, 20262,2023,49198.9%
Sep 29, 20262,2933,46098.6%
Sep 28, 20261,9163,39598.9%
Sep 27, 20261,9043,14198.3%
Sep 26, 20261,8963,08997.8%
Reports received at Mt. Hamilton Alert #1512, reports from 7.0 to 12.0, the latest 7.0, in reports.REPORTS RECEIVEDreports0510153 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 12 PM0.007
Fri 16, 11 AM0.0012
Fri 16, 10 AM0.0010
Fri 16, 9 AM0.0012
Fri 16, 8 AM0.0012
Fri 16, 7 AM0.0012
Fri 16, 6 AM0.0012
Fri 16, 5 AM0.0012
Fri 16, 4 AM0.0012
Fri 16, 3 AM0.0012
Fri 16, 2 AM0.0012
Fri 16, 1 AM0.0012
Thu 15, 11 PM0.0012
Thu 15, 10 PM0.0012
Thu 15, 9 PM0.0012
Thu 15, 8 PM0.0012
Thu 15, 7 PM0.0012
Thu 15, 6 PM0.0012
Thu 15, 5 PM0.0012
Thu 15, 4 PM0.0012
Thu 15, 3 PM0.009
Thu 15, 2 PM0.0012
Thu 15, 1 PM0.0012
Reports received at Mt. Hamilton Alert #1512, reports from 7.0 to 12.0, the latest 7.0, in reports.REPORTS RECEIVEDreports051015Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 12 PM0.007
Fri 16, 11 AM0.0012
Fri 16, 10 AM0.0010
Fri 16, 9 AM0.0012
Fri 16, 8 AM0.0012
Fri 16, 7 AM0.0012
Fri 16, 6 AM0.0012
Fri 16, 5 AM0.0012
Fri 16, 4 AM0.0012
Fri 16, 3 AM0.0012
Fri 16, 2 AM0.0012
Fri 16, 1 AM0.0012
Thu 15, 11 PM0.0012
Thu 15, 10 PM0.0012
Thu 15, 9 PM0.0012
Thu 15, 8 PM0.0012
Thu 15, 7 PM0.0012
Thu 15, 6 PM0.0012
Thu 15, 5 PM0.0012
Thu 15, 4 PM0.0012
Thu 15, 3 PM0.009
Thu 15, 2 PM0.0012
Thu 15, 1 PM0.0012
Thu 15, 12 PM0.0012
Thu 15, 11 AM0.0012
Thu 15, 10 AM0.0012
Thu 15, 9 AM0.0010
Thu 15, 8 AM0.0012
Thu 15, 7 AM0.0012
Thu 15, 6 AM0.0012
Thu 15, 5 AM0.0012
Thu 15, 4 AM0.0012
Thu 15, 3 AM0.0012
Thu 15, 2 AM0.0012
Thu 15, 1 AM0.0012
Thu 15, 12 AM0.0012
Wed 14, 11 PM0.0012
Wed 14, 10 PM0.0012
Wed 14, 9 PM0.0012
Wed 14, 8 PM0.0012
Wed 14, 7 PM0.0012
Wed 14, 6 PM0.0012
Wed 14, 5 PM0.0012
Wed 14, 4 PM0.0012
Wed 14, 3 PM0.0012
Wed 14, 2 PM0.0012
Wed 14, 1 PM0.0012
Wed 14, 12 PM0.0012
Wed 14, 11 AM0.0012
Wed 14, 10 AM0.0012
Wed 14, 9 AM0.0012
Wed 14, 8 AM0.0010
Wed 14, 7 AM0.0012
Wed 14, 6 AM0.0012
Wed 14, 5 AM0.0012
Wed 14, 4 AM0.0012
Wed 14, 3 AM0.0012
Wed 14, 2 AM0.0012
Wed 14, 1 AM0.0012
Wed 14, 12 AM0.0012
Tue 13, 11 PM0.0012
Tue 13, 10 PM0.0012
Tue 13, 9 PM0.0012
Tue 13, 8 PM0.0012
Tue 13, 7 PM0.0012
Tue 13, 6 PM0.0012
Tue 13, 5 PM0.0012
Tue 13, 4 PM0.0012
Tue 13, 3 PM0.0012
Tue 13, 2 PM0.0012
Tue 13, 1 PM0.0012
Tue 13, 12 PM0.0012
Tue 13, 11 AM0.009
Tue 13, 10 AM0.0012
Tue 13, 8 AM0.0012
Tue 13, 7 AM0.0012
Tue 13, 6 AM0.0012
Tue 13, 5 AM0.0012
Tue 13, 4 AM0.0012
Tue 13, 3 AM0.009
Tue 13, 2 AM0.0012
Tue 13, 1 AM0.0012
Tue 13, 12 AM0.0012
Mon 12, 11 PM0.0012
Mon 12, 10 PM0.0012
Mon 12, 9 PM0.0012
Mon 12, 8 PM0.0012
Mon 12, 7 PM0.0012
Mon 12, 6 PM0.0012
Mon 12, 5 PM0.0012
Mon 12, 4 PM0.0012
Mon 12, 2 PM0.0012
Mon 12, 1 PM0.0012
Mon 12, 12 PM0.0012
Mon 12, 11 AM0.0012
Mon 12, 10 AM0.0012
Mon 12, 9 AM0.009
Mon 12, 8 AM0.0012
Mon 12, 7 AM0.0012
Mon 12, 6 AM0.0012
Mon 12, 5 AM0.0012
Mon 12, 4 AM0.0012
Mon 12, 3 AM0.0012
Mon 12, 2 AM0.0012
Mon 12, 1 AM0.0012
Mon 12, 12 AM0.0012
Sun 11, 11 PM0.0012
Sun 11, 10 PM0.0012
Sun 11, 9 PM0.009
Sun 11, 8 PM0.0012
Sun 11, 7 PM0.0012
Sun 11, 6 PM0.0012
Sun 11, 5 PM0.0012
Sun 11, 3 PM0.0012
Sun 11, 2 PM0.0010
Sun 11, 1 PM0.0012
Sun 11, 12 PM0.0012
Sun 11, 11 AM0.0012
Sun 11, 10 AM0.0012
Sun 11, 9 AM0.0012
Sun 11, 8 AM0.009
Sun 11, 7 AM0.0012
Sun 11, 6 AM0.0012
Sun 11, 5 AM0.0012
Sun 11, 4 AM0.0012
Sun 11, 3 AM0.0012
Sun 11, 2 AM0.0012
Sun 11, 1 AM0.0012
Sun 11, 12 AM0.009
Sat 10, 11 PM0.0012
Sat 10, 10 PM0.0012
Sat 10, 9 PM0.0012
Sat 10, 8 PM0.0012
Sat 10, 7 PM0.0012
Sat 10, 6 PM0.0012
Sat 10, 5 PM0.0012
Sat 10, 4 PM0.0012
Sat 10, 3 PM0.0012
Sat 10, 2 PM0.0012
Sat 10, 1 PM0.0012
Sat 10, 12 PM0.0012
Sat 10, 11 AM0.0012
Sat 10, 10 AM0.0012
Sat 10, 9 AM0.0012
Sat 10, 8 AM0.0012
Sat 10, 7 AM0.0012
Sat 10, 6 AM0.0012
Sat 10, 5 AM0.0012
Sat 10, 4 AM0.0012
Sat 10, 3 AM0.0012
Sat 10, 2 AM0.0012
Sat 10, 1 AM0.0012
Sat 10, 12 AM0.0012
Fri 9, 11 PM0.0012
Fri 9, 10 PM0.0012
Fri 9, 9 PM0.0012
Fri 9, 8 PM0.0012
Fri 9, 7 PM0.0012
Fri 9, 6 PM0.009
Fri 9, 5 PM0.0012
Fri 9, 4 PM0.0012
Fri 9, 3 PM0.0012
Fri 9, 2 PM0.0012
Fri 9, 1 PM0.0012

Near Mt. Hamilton Alert #1512