Storm Station

At a river or reservoir gauge

DCP network, identified by the register

Identifier
MERI4
Latitude
41.08860 N
Longitude
91.71860 W
Elevation
-
Listed
Automatically, on 667 reports in 169 hours over the last seven days
Rank
418of 1,027 in Iowa, Oct 4

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

At a river or reservoir gauge

Drawn as the kind of place it stands at. 12 instruments in Iowa stand at one.

Station charts

Merrimac Report

Rank 418 of 1,027 in Iowa, 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 score95.7of 100

  1. Reports receivedweight 3599.3667 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1061.7half its reports arrived within 29 min
  3. Continuityweight 10100.0longest silence 45 min, on a schedule of one report every 15 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
418of 1,027 in Iowa, Oct 4
Schedule
every 15 minon the hour's :00, :15, :30 and :45
Reports received, 24 hours
96 of 96100% of its schedule
Reports received, 7 days
667 of 67299.2% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
45 minfrom Sep 28, 3:45 PM
Latest report
Oct 4, 9:15 AMlocal time
Time to reach Storm Station
29 min9 in 10 within 30 min

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

Its schedule is one report every 15 min, 96 in 24 hours. Two reports in the same 15 min count as one received.

Chart of the 1,027 ranked stations in Iowa 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, 1; 10 to 19 per cent, 4; 20 to 29 per cent, 2; 30 to 39 per cent, 26; 40 to 49 per cent, 15; 50 to 59 per cent, 13; 60 to 69 per cent, 99; 70 to 79 per cent, 17; 80 to 89 per cent, 121; 90 to 99 per cent, 437; 100 per cent, 292. Merrimac received 99.2 per cent, 667 of 672 scheduled reports, rank 418 of 1,027.WHERE IT RANKS IN IOWA, Oct 4THIS ONE: 99.2%, 667 OF 672, RANK 418 OF 1,027PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 19420 to 29230 to 392640 to 491550 to 591360 to 699970 to 791780 to 8912190 to 99437100292STATIONS, LOG SCALE
Chart of Merrimac's rank in Iowa by how it reported, day by day, from 2026-09-26 to 2026-10-04: 2026-09-26 rank 464 of 652; 2026-09-27 rank 430 of 653; 2026-09-28 rank 493 of 745; 2026-09-29 rank 467 of 758; 2026-09-30 rank 397 of 764; 2026-10-01 rank 368 of 771; 2026-10-02 rank 718 of 1,017; 2026-10-03 rank 718 of 1,017; 2026-10-04 rank 418 of 1,027.ITS RANK IN IOWA, DAY BY DAYRANK, FIRST AT THE TOP1200400600800Sep 26Sep 28Sep 30Oct 2Oct 4
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%292
90 to 99%437
80 to 89%121
70 to 79%17
60 to 69%99
50 to 59%13
40 to 49%15
30 to 39%26
20 to 29%2
10 to 19%4
0 to 9%1
DayRankStations rankedShare received
Oct 4, 20264181,02799.2%
Oct 3, 20267181,01798.4%
Oct 2, 20267181,01798.4%
Oct 1, 202636877198.0%
Sep 30, 202639776497.6%
Sep 29, 202646775897.6%
Sep 28, 202649374596.8%
Sep 27, 202643065396.2%
Sep 26, 202646465291.4%
Reports received at Merrimac, reports from 2.0 to 4.0, the latest 2.0, in reports.REPORTS RECEIVEDreports0123412 PM3 PM6 PM9 PMOct 43 AM6 AM9 AM
Reports received at Merrimac, reports from 2.0 to 4.0, the latest 2.0, in reports.REPORTS RECEIVEDreports01234Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4
Precipitation at Merrimac, precipitation from 0.17 to 5.38, the latest 1.87, in inches.PRECIPITATIONin0.002.004.006.0020172019202120232025
Days reported at Merrimac, days from 0.0 to 31.0, the latest 0.0, in days.DAYS REPORTEDdays010203120172019202120232025
The readings these charts were drawn from, as a table
MonthPrecipitation inDays reported
Sep 20171.8730
Aug 20170.8031
Jul 20171.2131
Jun 20171.3230
May 20172.1231
Apr 20175.3830
Mar 20172.7231
Feb 20170.1728
Jan 20171.3331
Dec 20160.9331
Nov 20160.8330

The whole record, Apr 23, 2010 to Oct 20, 2017, 2,655 days reported.

Average precipitation by month at Merrimac, precipitation from 0.76 to 4.32, the latest 1.42, in inches.AVERAGE PRECIPITATION BY MONTHin0.002.004.006.00JanFebMarAprMayJunJulAugSepOctNovDec
Days reported, by year at Merrimac, days reported from 253.0 to 366.0, the latest 293.0, in days.DAYS REPORTED, BY YEARdays010020030036620102011201220132014201520162017
The readings these charts were drawn from, as a table
MonthAverage high FAverage low FRecord high FRecord low FAverage precipitation inStrongest gust mph
Jan----0.76-
Feb----0.97-
Mar----1.47-
Apr----3.99-
May----4.32-
Jun----4.07-
Jul----2.11-
Aug----1.82-
Sep----2.08-
Oct----1.92-
Nov----2.00-
Dec----1.42-

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 Merrimac

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