Storm Station

At a river or reservoir gauge

DCP network, identified by the register

Identifier
EDFM2
Latitude
39.09861 N
Longitude
77.47111 W
Elevation
-
Listed
Automatically, on 164 reports in 164 hours over the last seven days
Rank
263of 564 in Maryland, Oct 4

On the radar over Potomac River AT Edwards FerryReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 3 instruments in Maryland stand at one.

Station charts

Potomac River AT Edwards Ferry Report

Rank 263 of 564 in Maryland, Oct 4. 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.

247 score96.0of 100

  1. Reports receivedweight 3597.6164 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1068.7half its reports arrived within 26 min
  3. Continuityweight 10100.0longest silence 2 h, on a schedule of one report every 60 min
  4. Accuracyweight 20--
  5. Instrument checksweight 15--
  6. Forecast checkweight 10--

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

Rank
263of 564 in Maryland, Oct 4
Schedule
every houron the hour's :45
Reports received, 24 hours
23 of 2495.8% of its schedule, 26 reports in all
Reports received, 7 days
164 of 16897.6% of its schedule, 183 reports in all
Days reported, 30 days
-
Longest silence, 7 days
2 hoursfrom Sep 27, 9:45 PM
Latest report
Oct 4, 7:45 AMlocal time
Time to reach Storm Station
26 min9 in 10 within 26 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 564 ranked stations in Maryland on Oct 4 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, 2; 10 to 19 per cent, 8; 20 to 29 per cent, 14; 30 to 39 per cent, 16; 40 to 49 per cent, 11; 50 to 59 per cent, 11; 60 to 69 per cent, 42; 70 to 79 per cent, 96; 80 to 89 per cent, 25; 90 to 99 per cent, 190; 100 per cent, 149. Potomac River AT Edwards Ferry received 97.6 per cent, 164 of 168 scheduled reports, rank 263 of 564.WHERE IT RANKS IN MARYLAND, Oct 4THIS ONE: 97.6%, 164 OF 168, RANK 263 OF 564PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9210 to 19820 to 291430 to 391640 to 491150 to 591160 to 694270 to 799680 to 892590 to 99190100149STATIONS, LOG SCALE
Chart of Potomac River AT Edwards Ferry's rank in Maryland by how it reported, day by day, from 2026-09-26 to 2026-10-04: 2026-09-26 rank 309 of 399; 2026-09-27 rank 185 of 402; 2026-09-28 rank 200 of 418; 2026-09-29 rank 207 of 424; 2026-09-30 rank 204 of 424; 2026-10-01 rank 186 of 426; 2026-10-02 rank 259 of 540; 2026-10-03 rank 258 of 540; 2026-10-04 rank 263 of 564.ITS RANK IN MARYLAND, DAY BY DAYRANK, FIRST AT THE TOP1100200300400Sep 26Sep 28Sep 30Oct 2Oct 4
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%149
90 to 99%190
80 to 89%25
70 to 79%96
60 to 69%42
50 to 59%11
40 to 49%11
30 to 39%16
20 to 29%14
10 to 19%8
0 to 9%2
DayRankStations rankedShare received
Oct 4, 202626356497.6%
Oct 3, 202625854097.5%
Oct 2, 202625954097.5%
Oct 1, 202618642697.1%
Sep 30, 202620442496.6%
Sep 29, 202620742495.7%
Sep 28, 202620041895.7%
Sep 27, 202618540295.7%
Sep 26, 202630939991.3%
Reports received at Potomac River AT Edwards Ferry, reports from 0.0 to 4.0, the latest 0.0, in reports.REPORTS RECEIVEDreports012349 AM12 PM3 PM6 PM9 PMOct 43 AM6 AM
Reports received at Potomac River AT Edwards Ferry, reports from 0.0 to 4.0, the latest 0.0, in reports.REPORTS RECEIVEDreports01234Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4

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

Near Potomac River AT Edwards Ferry

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