Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
SACM2
Latitude
39.45030 N
Longitude
77.73110 W
Elevation
-
Listed
Automatically, on 165 reports in 165 hours over the last seven days
Observed
12:15 AMEDT, 1 hour 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

Antietam Creek AT Sharpsburg Report

Rank 276 of 742 in Maryland, Oct 17. 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 score95.3of 100

Maryland median
89.5the median score of 742 stations
Scoring higher
274stations in Maryland
Sharing its score
7ranks 275 to 281
Points deducted
4.73.6 arrival, 0.6 reports received, 0.5 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Maryland median 100.0, 100.0, 95.1
Next above
JPAM2rank 275; ahead on reports due 336 against 168, the longer record first
Next below
EKMM2rank 279; behind on median arrival 27 min 50 s against 27 min 51 s
Sharing its rank
2other 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.

  1. Reports receivedweight 3598.234.4 of 35 pointsMaryland median 84.4165 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1064.36.4 of 10 pointsMaryland median 94.0half its reports arrived within 28 min
  3. Continuityweight 10100.010.0 of 10 pointsMaryland median 100.0longest silence 2 h, on a schedule of one report every 60 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianMaryland median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianMaryland median 100.0-
  6. Forecast checkweight 10-9.5 of 10 points, at the medianMaryland median 95.1-

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 :15
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
165 of 16898.2% of its schedule, 172 reports in all
Days reported, 30 days
-
Longest silence, 7 days
2 hoursfrom Oct 10, 10:15 AM
Latest report
Oct 17, 12:15 AMlocal time
Time to reach Storm Station
28 min9 in 10 within 28 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 742 ranked stations in Maryland on Oct 17 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, 3; 10 to 19 per cent, 38; 20 to 29 per cent, 9; 30 to 39 per cent, 14; 40 to 49 per cent, 48; 50 to 59 per cent, 97; 60 to 69 per cent, 117; 70 to 79 per cent, 35; 80 to 89 per cent, 41; 90 to 99 per cent, 181; 100 per cent, 159. Antietam Creek AT Sharpsburg received 98.2 per cent, 165 of 168 scheduled reports, rank 276 of 742.WHERE IT RANKS IN MARYLAND, Oct 17THIS ONE: 98.2%, 165 OF 168, RANK 276 OF 742PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9310 to 193820 to 29930 to 391440 to 494850 to 599760 to 6911770 to 793580 to 894190 to 99181100159STATIONS, LOG SCALE
Chart of Antietam Creek AT Sharpsburg's rank in Maryland by how it reported, day by day, from 2026-09-26 to 2026-10-17: 2026-09-26 rank 139 of 399; 2026-09-27 rank 151 of 402; 2026-09-28 rank 175 of 418; 2026-09-29 rank 169 of 424; 2026-09-30 rank 154 of 424; 2026-10-01 rank 160 of 426; 2026-10-02 rank 242 of 540; 2026-10-03 rank 241 of 540; 2026-10-04 rank 256 of 564; 2026-10-05 rank 258 of 686; 2026-10-06 rank 258 of 702; 2026-10-07 rank 251 of 729; 2026-10-08 rank 246 of 731; 2026-10-09 rank 244 of 733; 2026-10-10 rank 243 of 733; 2026-10-11 rank 250 of 725; 2026-10-12 rank 244 of 728; 2026-10-13 rank 268 of 726; 2026-10-14 rank 273 of 727; 2026-10-15 rank 280 of 723; 2026-10-16 rank 284 of 736; 2026-10-17 rank 276 of 742.ITS RANK IN MARYLAND, DAY BY DAYRANK, FIRST AT THE TOP1100200300Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16Oct 17
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%159
90 to 99%181
80 to 89%41
70 to 79%35
60 to 69%117
50 to 59%97
40 to 49%48
30 to 39%14
20 to 29%9
10 to 19%38
0 to 9%3
DayRankStations rankedShare received
Oct 17, 202627674298.2%
Oct 16, 202628473698.2%
Oct 15, 202628072398.2%
Oct 14, 202627372797.6%
Oct 13, 202626872698.2%
Oct 12, 202624472897.6%
Oct 11, 202625072597.6%
Oct 10, 202624373398.2%
Oct 9, 202624473398.2%
Oct 8, 202624673197.6%
Oct 7, 202625172998.2%
Oct 6, 202625870298.2%
Oct 5, 202625868698.2%
Oct 4, 202625656498.2%
Oct 3, 202624154098.1%
Oct 2, 202624254098.1%
Oct 1, 202616042698.5%
Sep 30, 202615442499.1%
Sep 29, 202616942498.9%
Sep 28, 202617541898.5%
Sep 27, 202615140297.8%
Sep 26, 2026139399100.0%
Reports received at Antietam Creek AT Sharpsburg, reports from 2.0 to 4.0, the latest 2.0, in reports.REPORTS RECEIVEDreports012343 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 17
Reports received at Antietam Creek AT Sharpsburg, reports from 2.0 to 4.0, the latest 2.0, in reports.REPORTS RECEIVEDreports01234Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16Sat 17

Near Antietam Creek AT Sharpsburg