Weather/District of Columbia/Instruments/GTND2
Tidal Potomac River AT Wisconsin Avenue/Georgetown
At a river or reservoir gauge in Washington County, District of ColumbiaAt a river or reservoir gauge
DCP network, identified by the register
- Identifier
- GTND2
- Latitude
- 38.90220 N
- Longitude
- 77.06310 W
- Elevation
- -
- Listed
- Automatically, on 136 reports in 140 hours over the last seven days
- Observed
- 12:54 AMEDT, 24 minutes ago
Now, today, and the week
On the radar over Tidal Potomac River AT Wisconsin Avenue/GeorgetownReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
At a river or reservoir gauge
Drawn as the kind of place it stands at. 0 instruments in District of Columbia stand at one.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Tidal Potomac River AT Wisconsin Avenue/Georgetown Report
Rank 5 of 18 in District of Columbia, 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 score97.0of 100
- District of Columbia median
- 89.7the median score of 18 stations
- Scoring higher
- 4stations in District of Columbia
- Sharing its score
- 1no other station
- Points deducted
- 3.02.0 arrival, 1.1 accuracy
- Counted at the median
- Accuracy, instrument checksnot measured at this station; District of Columbia median 95.1, 100.0
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.
- Reports receivedweight 35100.038.9 of 38.9 pointsDistrict of Columbia median 81.9136 of 136 scheduled reports received in 7 days
- Arrivalweight 1082.49.2 of 11.1 pointsDistrict of Columbia median 88.2half its reports arrived within 19 min
- Continuityweight 10100.011.1 of 11.1 pointsDistrict of Columbia median 100.0longest silence 68 min, on a schedule of one report every 60 min
- Accuracyweight 20-21.1 of 22.2 points, at the medianDistrict of Columbia median 95.1-
- Instrument checksweight 15-16.7 of 16.7 points, at the medianDistrict of Columbia median 100.0-
- 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.
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 (3 h), none for 72 (72 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
- Schedule
- every 6 min
- Reports received, 24 hours
- 239 of 24099.5% of its schedule
- Reports received, 7 days
- 1,679 of 1,68099.9% of its schedule
- Days reported, 30 days
- -
- Longest silence, 7 days
- 24 minfrom Oct 16, 12:54 AM
- Latest report
- Oct 16, 12:54 AMlocal time
- Time to reach Storm Station
- 19 min9 in 10 within 19 min
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: 136 of 136 scheduled reports received, 100%.
Its schedule is one report every 6 min, 240 in 24 hours. Two reports in the same 6 min count as one received.
The ranking these charts were drawn from, as tables
| Share of scheduled reports received | Stations |
|---|---|
| 100% | 4 |
| 90 to 99% | 5 |
| 80 to 89% | 0 |
| 70 to 79% | 0 |
| 60 to 69% | 3 |
| 50 to 59% | 3 |
| 40 to 49% | 2 |
| 30 to 39% | 0 |
| 20 to 29% | 1 |
| 10 to 19% | 0 |
| 0 to 9% | 0 |
| Day | Rank | Stations ranked | Share received |
|---|---|---|---|
| Oct 16, 2026 | 5 | 18 | 100.0% |
| Oct 15, 2026 | 5 | 17 | 100.0% |
| Oct 14, 2026 | 5 | 18 | 100.0% |
| Oct 13, 2026 | 6 | 18 | 100.0% |
| Oct 12, 2026 | 5 | 18 | 100.0% |
| Oct 11, 2026 | 6 | 17 | 100.0% |