Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
ERDM2
Latitude
39.22720 N
Longitude
76.72310 W
Elevation
-
Listed
Automatically, on 168 reports in 162 hours over the last seven days
Observed
10:00 PMEDT, 45 minutes ago

Ranking Statistics

At a river or reservoir gauge

Drawn as the kind of place it stands at. 33 instruments in Maryland stand at one.

Station charts

Patapsco River AT Elkridge Report

Rank 211 of 736 in Maryland, 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 score96.4of 100

Maryland median
89.0the median score of 736 stations
Scoring higher
208stations in Maryland
Sharing its score
4ranks 209 to 212
Points deducted
3.62.6 arrival, 0.8 forecast check, 0.2 accuracy
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Maryland median 99.0, 100.0, 92.1
Next above
LUKM2rank 210; ahead on median arrival 22 min 50 s against 22 min 58 s
Next below
CWCM2rank 212; behind on longest silence 63 min against 75 min

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 35100.035.0 of 35 pointsMaryland median 82.1168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1074.17.4 of 10 pointsMaryland median 94.0half its reports arrived within 23 min
  3. Continuityweight 10100.010.0 of 10 pointsMaryland median 100.0longest silence 63 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-19.8 of 20 points, at the medianMaryland median 99.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianMaryland median 100.0-
  6. Forecast checkweight 10-9.2 of 10 points, at the medianMaryland median 92.1-

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 1.5 °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 houron the hour's :00
Reports received, 24 hours
24 of 24100% of its schedule, 26 reports in all
Reports received, 7 days
168 of 168100% of its schedule, 185 reports in all
Days reported, 30 days
-
Longest silence, 7 days
61 minfrom Oct 8, 11:59 PM
Latest report
Oct 15, 10:00 PMlocal 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 hour, 24 in 24 hours. Two reports in the same hour count as one received.

Chart of the 736 ranked stations in Maryland 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, 4; 10 to 19 per cent, 20; 20 to 29 per cent, 27; 30 to 39 per cent, 11; 40 to 49 per cent, 62; 50 to 59 per cent, 96; 60 to 69 per cent, 107; 70 to 79 per cent, 36; 80 to 89 per cent, 35; 90 to 99 per cent, 183; 100 per cent, 155. Patapsco River AT Elkridge received 100.0 per cent, 168 of 168 scheduled reports, rank 211 of 736.WHERE IT RANKS IN MARYLAND, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 211 OF 736PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9410 to 192020 to 292730 to 391140 to 496250 to 599660 to 6910770 to 793680 to 893590 to 99183100155STATIONS, LOG SCALE
Chart of Patapsco River AT Elkridge's rank in Maryland by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 98 of 399; 2026-09-27 rank 145 of 402; 2026-09-28 rank 92 of 418; 2026-09-29 rank 95 of 424; 2026-09-30 rank 85 of 424; 2026-10-01 rank 61 of 426; 2026-10-02 rank 149 of 540; 2026-10-03 rank 148 of 540; 2026-10-04 rank 167 of 564; 2026-10-05 rank 170 of 686; 2026-10-06 rank 166 of 702; 2026-10-07 rank 163 of 729; 2026-10-08 rank 152 of 731; 2026-10-09 rank 154 of 733; 2026-10-10 rank 152 of 733; 2026-10-11 rank 154 of 725; 2026-10-12 rank 160 of 728; 2026-10-13 rank 184 of 726; 2026-10-14 rank 191 of 727; 2026-10-15 rank 202 of 723; 2026-10-16 rank 211 of 736.ITS RANK IN MARYLAND, DAY BY DAYRANK, FIRST AT THE TOP1100200300Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%155
90 to 99%183
80 to 89%35
70 to 79%36
60 to 69%107
50 to 59%96
40 to 49%62
30 to 39%11
20 to 29%27
10 to 19%20
0 to 9%4
DayRankStations rankedShare received
Oct 16, 2026211736100.0%
Oct 15, 2026202723100.0%
Oct 14, 2026191727100.0%
Oct 13, 2026184726100.0%
Oct 12, 2026160728100.0%
Oct 11, 2026154725100.0%
Oct 10, 2026152733100.0%
Oct 9, 2026154733100.0%
Oct 8, 2026152731100.0%
Oct 7, 2026163729100.0%
Oct 6, 2026166702100.0%
Oct 5, 2026170686100.0%
Oct 4, 2026167564100.0%
Oct 3, 2026148540100.0%
Oct 2, 2026149540100.0%
Oct 1, 202661426100.0%
Sep 30, 202685424100.0%
Sep 29, 202695424100.0%
Sep 28, 202692418100.0%
Sep 27, 202614540297.8%
Sep 26, 202698399100.0%
Reports received at Patapsco River AT Elkridge, reports from 1.0 to 4.0, the latest 1.0, in reports.REPORTS RECEIVEDreports01234Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Reports received at Patapsco River AT Elkridge, reports from 0.0 to 4.0, the latest 1.0, in reports.REPORTS RECEIVEDreports01234Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15

Near Patapsco River AT Elkridge