Weather/Illinois/Instruments/SSDI2
Rock Falls - Sinnissippi Dam
At a dam in Whiteside County, IllinoisAt a dam
DCP network, identified by the register
- Identifier
- SSDI2
- Latitude
- 41.78750 N
- Longitude
- 89.67640 W
- Elevation
- -
- Listed
- Automatically, on 148 reports in 116 hours over the last seven days
- Rank
- 816of 1,162 in Illinois, Oct 4
Now, today, and the week
On the radar over Rock Falls - Sinnissippi DamReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
At a dam
Drawn as the kind of place it stands at. 7 instruments in Illinois stand at one.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Rock Falls - Sinnissippi Dam Report
Rank 816 of 1,162 in Illinois, 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 score89.7of 100
- Reports receivedweight 3588.1148 of 168 scheduled reports received in 7 days
- Arrivalweight 1050.1half its reports arrived within 35 min
- Continuityweight 1097.5longest silence 3.3 h, on a schedule of one report every 60 min
- Accuracyweight 20--
- Instrument checksweight 15--
- 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
- 816of 1,162 in Illinois, Oct 4
- Schedule
- every houron the hour's :00 and :45
- Reports received, 24 hours
- 19 of 2479.1% of its schedule
- Reports received, 7 days
- 144 of 16885.7% of its schedule
- Days reported, 30 days
- -
- Longest silence, 7 days
- 5 hoursfrom Oct 3, 6:00 PM
- Latest report
- Oct 4, 2:45 AMlocal time
- Time to reach Storm Station
- 35 min9 in 10 within 50 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.
The ranking these charts were drawn from, as tables
| Share of scheduled reports received | Stations |
|---|---|
| 100% | 505 |
| 90 to 99% | 318 |
| 80 to 89% | 33 |
| 70 to 79% | 22 |
| 60 to 69% | 200 |
| 50 to 59% | 12 |
| 40 to 49% | 12 |
| 30 to 39% | 25 |
| 20 to 29% | 2 |
| 10 to 19% | 32 |
| 0 to 9% | 1 |
| Day | Rank | Stations ranked | Share received |
|---|---|---|---|
| Oct 4, 2026 | 816 | 1,162 | 88.0% |
| Oct 3, 2026 | 985 | 1,104 | 87.9% |
| Oct 2, 2026 | 984 | 1,103 | 87.9% |
| Oct 1, 2026 | 465 | 542 | 89.4% |
| Sep 30, 2026 | 468 | 540 | 92.3% |
| Sep 29, 2026 | 469 | 535 | 92.5% |
| Sep 28, 2026 | 473 | 517 | 91.4% |
| Sep 27, 2026 | 396 | 417 | 89.1% |
| Sep 26, 2026 | 403 | 415 | 73.9% |