Storm Station

At a river or reservoir gauge

DCP network, identified by the register

Identifier
CHLM2
Latitude
38.97530 N
Longitude
76.97310 W
Elevation
-
Listed
Automatically, on 337 reports in 169 hours over the last seven days
Rank
460of 564 in Maryland, Oct 4
Precipitation today
0.1in

On the radar over Riggs Rd./Sligo CreekReflectivityStorm 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

Riggs Rd./Sligo Creek Report

Rank 460 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 score86.6of 100

  1. Reports receivedweight 3566.9337 of 504 scheduled reports received in 7 days
  2. Arrivalweight 1098.1half its reports arrived within 11 min
  3. Continuityweight 1083.9longest silence 1.7 h, on a schedule of one report every 20 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
460of 564 in Maryland, Oct 4
Schedule
every 20 minon the hour's :00 and :40
Reports received, 24 hours
48 of 7266.6% of its schedule, 58 reports in all
Reports received, 7 days
336 of 50466.6% of its schedule, 355 reports in all
Days reported, 30 days
30 of 30
Longest silence, 7 days
1 h 40 minfrom Sep 30, 11:00 PM
Latest report
Oct 4, 8:40 AMlocal time
Time to reach Storm Station
11 min9 in 10 within 21 min

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

Its schedule is one report every 20 min, 72 in 24 hours. Two reports in the same 20 min 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. Riggs Rd./Sligo Creek received 66.8 per cent, 337 of 504 scheduled reports, rank 460 of 564.WHERE IT RANKS IN MARYLAND, Oct 4THIS ONE: 66.8%, 337 OF 504, RANK 460 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 Riggs Rd./Sligo Creek's rank in Maryland by how it reported, day by day, from 2026-09-26 to 2026-10-04: 2026-09-26 rank 354 of 399; 2026-09-27 rank 348 of 402; 2026-09-28 rank 358 of 418; 2026-09-29 rank 362 of 424; 2026-09-30 rank 369 of 424; 2026-10-01 rank 372 of 426; 2026-10-02 rank 429 of 540; 2026-10-03 rank 429 of 540; 2026-10-04 rank 460 of 564.ITS RANK IN MARYLAND, DAY BY DAYRANK, FIRST AT THE TOP1200400600Sep 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, 202646056466.8%
Oct 3, 202642954066.9%
Oct 2, 202642954066.8%
Oct 1, 202637242666.5%
Sep 30, 202636942467.1%
Sep 29, 202636242467.2%
Sep 28, 202635841867.4%
Sep 27, 202634840268.0%
Sep 26, 202635439967.1%
Precipitation at Riggs Rd./Sligo Creek, precipitation from 0.00 to 0.04, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.1012 PM3 PM6 PM9 PMOct 43 AM6 AM9 AM
Reports received at Riggs Rd./Sligo Creek, reports from 1.0 to 5.0, the latest 1.0, in reports.REPORTS RECEIVEDreports024612 PM3 PM6 PM9 PMOct 43 AM6 AM9 AM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Sun 4, 9 AM0.001
Sun 4, 8 AM0.003
Sun 4, 7 AM0.003
Sun 4, 6 AM0.003
Sun 4, 5 AM0.043
Sun 4, 4 AM0.005
Sun 4, 3 AM0.043
Sun 4, 2 AM0.005
Sun 4, 1 AM0.003
Precipitation at Riggs Rd./Sligo Creek, precipitation from 0.00 to 0.04, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.10Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4
Reports received at Riggs Rd./Sligo Creek, reports from 1.0 to 8.0, the latest 1.0, in reports.REPORTS RECEIVEDreports02468Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Sun 4, 9 AM0.001
Sun 4, 8 AM0.003
Sun 4, 7 AM0.003
Sun 4, 6 AM0.003
Sun 4, 5 AM0.043
Sun 4, 4 AM0.005
Sun 4, 3 AM0.043
Sun 4, 2 AM0.005
Sun 4, 1 AM0.003
Precipitation at Riggs Rd./Sligo Creek, precipitation from 0.00 to 0.91, the latest 0.08, in inches.PRECIPITATIONin0.000.250.500.751.00Sep 5Sep 10Sep 15Sep 20Sep 25Sep 30
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 40.08
Oct 30.27
Oct 20.12
Oct 10.00
Sep 300.00
Sep 290.00
Sep 280.00
Sep 270.08
Sep 260.24
Sep 250.00
Sep 240.00
Sep 230.35
Sep 220.91
Sep 210.75
Sep 200.00
Sep 190.00
Sep 180.00
Sep 170.08
Sep 160.00
Sep 150.00
Sep 140.00
Sep 130.11
Sep 120.00
Sep 110.44
Sep 100.00
Sep 90.00
Sep 80.00
Sep 70.00
Sep 60.00
Sep 50.00

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

Near Riggs Rd./Sligo Creek

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