Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
LMRV2
Latitude
38.73780 N
Longitude
77.25480 W
Elevation
-
Listed
Automatically, on 78 reports in 67 hours over the last seven days
Rank
1,446of 1,541 in Virginia, Oct 16
Observed
6:00 AMEDT, 3 hours ago
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Lake MercerReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 98 instruments in Virginia stand at one.

Station charts

Lake Mercer Report

Rank 1,446 of 1,541 in Virginia, 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 score73.0of 100

Virginia median
95.9the median score of 1,541 stations
Scoring higher
1,444stations in Virginia
Sharing its score
2ranks 1,445 to 1,446
Points deducted
27.023.1 reports received, 2.8 continuity, 0.8 arrival, 0.4 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Virginia median 100.0, 100.0, 96.5
Next above
FW4583rank 1,445; ahead on reports received 48.6% against 34.0%
Next below
N4BHMrank 1,447; behind on 247 score 73.0 against 72.9

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 3534.111.9 of 35 pointsVirginia median 97.978 of 229 scheduled reports received in 7 days
  2. Arrivalweight 1092.09.2 of 10 pointsVirginia median 92.7half its reports arrived within 14 min
  3. Continuityweight 1072.57.3 of 10 pointsVirginia median 100.0longest silence 5.3 h, on a schedule of one report every 44 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
  6. Forecast checkweight 10-9.7 of 10 points, at the medianVirginia median 96.5-

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 (2.2 h), none for 72 (52.8 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
1,446of 1,541 in Virginia, Oct 16
Schedule
every 7 min
Reports received, 24 hours
13 of 2056.3% of its schedule, 17 reports in all
Reports received, 7 days
149 of 1,44010.3% of its schedule, 206 reports in all
Days reported, 30 days
30 of 30
Longest silence, 7 days
5 h 58 minfrom Oct 15, 11:15 PM
Latest report
Oct 16, 6:00 AMlocal time

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 78 of 229 scheduled reports received, 34.0%.

Its schedule is one report every 7 min, 205 in 24 hours. Two reports in the same 7 min count as one received.

Chart of the 1,541 ranked stations in Virginia 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, 5; 10 to 19 per cent, 17; 20 to 29 per cent, 48; 30 to 39 per cent, 6; 40 to 49 per cent, 81; 50 to 59 per cent, 182; 60 to 69 per cent, 29; 70 to 79 per cent, 130; 80 to 89 per cent, 138; 90 to 99 per cent, 543; 100 per cent, 362. Lake Mercer received 34.0 per cent, 78 of 229 scheduled reports, rank 1,446 of 1,541.WHERE IT RANKS IN VIRGINIA, Oct 16THIS ONE: 34.0%, 78 OF 229, RANK 1,446 OF 1,541PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9510 to 191720 to 294830 to 39640 to 498150 to 5918260 to 692970 to 7913080 to 8913890 to 99543100362STATIONS, LOG SCALE
Chart of Lake Mercer's rank in Virginia by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 722 of 729; 2026-09-27 rank 730 of 733; 2026-09-28 rank 795 of 807; 2026-09-29 rank 797 of 818; 2026-09-30 rank 796 of 818; 2026-10-01 rank 794 of 820; 2026-10-02 rank 1,114 of 1,140; 2026-10-03 rank 1,114 of 1,140; 2026-10-04 rank 1,153 of 1,183; 2026-10-05 rank 1,351 of 1,415; 2026-10-06 rank 1,369 of 1,444; 2026-10-07 rank 1,371 of 1,526; 2026-10-08 rank 1,439 of 1,534; 2026-10-09 rank 1,440 of 1,529; 2026-10-10 rank 1,441 of 1,530; 2026-10-11 rank 1,425 of 1,520; 2026-10-12 rank 1,435 of 1,532; 2026-10-13 rank 1,433 of 1,536; 2026-10-14 rank 1,443 of 1,537; 2026-10-15 rank 1,432 of 1,532; 2026-10-16 rank 1,446 of 1,541.ITS RANK IN VIRGINIA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%362
90 to 99%543
80 to 89%138
70 to 79%130
60 to 69%29
50 to 59%182
40 to 49%81
30 to 39%6
20 to 29%48
10 to 19%17
0 to 9%5
DayRankStations rankedShare received
Oct 16, 20261,4461,54134.0%
Oct 15, 20261,4321,53233.1%
Oct 14, 20261,4431,53733.6%
Oct 13, 20261,4331,53633.6%
Oct 12, 20261,4351,53230.1%
Oct 11, 20261,4251,52030.0%
Oct 10, 20261,4411,53030.8%
Oct 9, 20261,4401,52930.8%
Oct 8, 20261,4391,53430.3%
Oct 7, 20261,3711,52630.3%
Oct 6, 20261,3691,44430.3%
Oct 5, 20261,3511,41530.3%
Oct 4, 20261,1531,18329.9%
Oct 3, 20261,1141,14026.2%
Oct 2, 20261,1141,14026.2%
Oct 1, 202679482026.3%
Sep 30, 202679681827.2%
Sep 29, 202679781828.6%
Sep 28, 202679580719.8%
Sep 27, 202673073313.9%
Sep 26, 202672272915.9%
Reports received at Lake Mercer, reports from 0.0 to 3.0, the latest 0.0, in reports.REPORTS RECEIVEDreports01239 AM12 PM3 PM6 PM9 PMOct 163 AM6 AM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 6 AM0.001
Reports received at Lake Mercer, reports from 0.0 to 19.0, the latest 0.0, in reports.REPORTS RECEIVEDreports05101520Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 6 AM0.001
Precipitation at Lake Mercer, precipitation from 0.00 to 1.79, the latest 0.00, in inches.PRECIPITATIONin0.000.501.001.502.00Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 160.00
Oct 150.08
Oct 140.00
Oct 130.00
Oct 120.52
Oct 111.79
Oct 100.00
Oct 90.00
Oct 80.00
Oct 70.00
Oct 60.00
Oct 50.00
Oct 40.12
Oct 30.40
Oct 20.20
Oct 10.00
Sep 300.00
Sep 290.00
Sep 280.00
Sep 270.04
Sep 260.36
Sep 250.00
Sep 240.00
Sep 230.76
Sep 220.96
Sep 210.48
Sep 200.00
Sep 190.00
Sep 180.00
Sep 170.00

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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