BROCK RESERVOIR OUTLET NEAR CALEXICO, CA
USGS 09527660 · California · reports discharge (live), gauge height
Reading BROCK RESERVOIR OUTLET NEAR CALEXICO, CA…
Back to the search
USGS 09527660 · California · reports discharge (live), gauge height
What the agencies suggest
Stand back from the shoreline and be aware of surroundingsRhode Island Department of Environmental Management
Wading and boating should be avoided if waters are running high and muddy and the streambed is not visiblePennsylvania Fish and Boat Commission
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 6:30 PM MST · provisional USGS data
Below normal for Nov 5 Rising · 24 h
Discharge, last 7 days: 128 readings from Oct 29, 7:00 PM MST to Nov 5, 6:30 PM MST; ranging 0 to 99.7 ft³/s; latest 4.84 ft³/s; 3 gaps in the record; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 6:30 PM MST | 4.84 | 24.2 | 29–395 |
| Nov 5, 4:45 PM MST | 5.1 | 24.5 | 29–395 |
| Nov 5, 3:00 PM MST | 14.5 | – | 29–395 |
| Nov 5, 1:30 PM MST | 24.5 | 24.3 | 29–395 |
| Nov 5, 12:00 PM MST | 19.1 | – | 29–395 |
| Nov 5, 10:45 AM MST | 64.2 | 24.4 | 29–395 |
| Nov 5, 9:45 AM MST | 34.5 | 24.3 | 29–395 |
| Nov 5, 8:45 AM MST | 96.8 | 24.1 | 29–395 |
| Nov 5, 7:45 AM MST | 19.6 | 24.3 | 29–395 |
| Nov 5, 6:15 AM MST | 0 | 24.3 | 29–395 |
| Nov 5, 5:15 AM MST | 14.8 | 24.4 | 29–395 |
| Nov 5, 4:15 AM MST | 4.93 | 24.4 | 29–395 |
| Nov 5, 3:15 AM MST | 14.7 | 24.4 | 29–395 |
| Nov 5, 2:15 AM MST | 24.2 | 24.3 | 29–395 |
| Nov 5, 1:15 AM MST | 14.6 | 24.3 | 29–395 |
| Nov 4, 10:45 PM MST | 9.68 | 24.2 | 67–287 |
| Nov 4, 9:15 PM MST | 4.94 | 24.4 | 67–287 |
| Nov 4, 7:45 PM MST | 0 | 24.1 | 67–287 |
| Nov 4, 3:45 PM MST | 9.78 | 24.3 | 67–287 |
| Nov 4, 10:45 AM MST | 39.5 | 24.4 | 67–287 |
| Nov 4, 9:45 AM MST | 0 | 24.5 | 67–287 |
| Nov 4, 8:45 AM MST | 5.01 | 24.4 | 67–287 |
| Nov 4, 7:45 AM MST | 19.7 | 24.4 | 67–287 |
| Nov 4, 5:15 AM MST | 35 | 24.5 | 67–287 |
| Nov 4, 4:15 AM MST | 0 | 24.4 | 67–287 |
| Nov 4, 3:15 AM MST | 9.73 | 24.3 | 67–287 |
| Nov 4, 2:15 AM MST | 9.75 | 24.4 | 67–287 |
| Nov 4, 1:15 AM MST | 0 | 24.3 | 67–287 |
| Nov 4, 12:15 AM MST | 49 | 24.4 | 67–287 |
| Nov 3, 11:15 PM MST | 33.9 | 24.3 | 0.15–123 |
| Nov 3, 10:15 PM MST | 33.9 | 24.3 | 0.15–123 |
| Nov 3, 4:00 PM MST | 0 | – | 0.15–123 |
| Nov 3, 3:00 PM MST | 34.8 | – | 0.15–123 |
| Nov 3, 2:00 PM MST | 14.7 | – | 0.15–123 |
| Nov 3, 1:00 PM MST | 59.7 | – | 0.15–123 |
| Nov 3, 11:45 AM MST | 99.7 | 24.3 | 0.15–123 |
| Nov 3, 10:30 AM MST | 10 | 24.5 | 0.15–123 |
| Nov 3, 9:30 AM MST | 0 | 24.7 | 0.15–123 |
| Nov 3, 8:15 AM MST | 0 | 24.4 | 0.15–123 |
| Nov 3, 7:15 AM MST | 0 | 24.3 | 0.15–123 |
| Nov 3, 4:45 AM MST | 14.3 | 24.1 | 0.15–123 |
| Nov 3, 3:15 AM MST | 4.84 | 24.1 | 0.15–123 |
| Nov 3, 1:45 AM MST | 0 | 24.2 | 0.15–123 |
| Nov 3, 12:45 AM MST | 14.3 | 24.2 | 0.15–123 |
| Nov 2, 11:45 PM MST | 19.5 | 24.3 | 0.13–190 |
| Nov 2, 10:45 PM MST | 0 | 24.2 | 0.13–190 |
| Nov 2, 9:30 PM MST | 23.9 | 24.2 | 0.13–190 |
| Nov 2, 8:30 PM MST | 0 | 24 | 0.13–190 |
| Nov 2, 7:30 PM MST | 0 | 24 | 0.13–190 |
| Nov 2, 6:30 PM MST | 19.3 | 24.2 | 0.13–190 |
| Nov 2, 5:30 PM MST | 9.68 | 24.2 | 0.13–190 |
| Nov 2, 4:00 PM MST | 0 | – | 0.13–190 |
| Nov 2, 2:30 PM MST | 0 | 24.4 | 0.13–190 |
| Nov 2, 1:00 PM MST | 24 | – | 0.13–190 |
| Nov 2, 11:30 AM MST | 0 | 24.2 | 0.13–190 |
| Nov 2, 9:45 AM MST | 0 | 24.2 | 0.13–190 |
| Nov 2, 8:45 AM MST | 19.4 | 24.2 | 0.13–190 |
| Nov 2, 7:00 AM MST | 14.3 | – | 0.13–190 |
| Nov 2, 5:30 AM MST | 0 | 24.2 | 0.13–190 |
| Nov 2, 4:15 AM MST | 0 | 24.3 | 0.13–190 |
| Nov 2, 2:30 AM MST | 9.84 | 24.4 | 0.13–190 |
| Nov 2, 1:15 AM MST | 14.1 | 24 | 0.13–190 |
| Nov 2, 12:00 AM MST | 30.2 | – | 0.13–190 |
| Nov 1, 9:30 PM MST | 19.4 | 24.3 | -0.22–162 |
| Nov 1, 8:30 PM MST | 38.9 | 24.3 | -0.22–162 |
| Nov 1, 7:30 PM MST | 34.5 | 24.4 | -0.22–162 |
| Nov 1, 6:30 PM MST | 44.1 | 24.3 | -0.22–162 |
| Nov 1, 5:30 PM MST | 24.5 | 24.4 | -0.22–162 |
| Nov 1, 4:30 PM MST | 9.86 | 24.4 | -0.22–162 |
| Nov 1, 3:30 PM MST | 9.86 | 24.4 | -0.22–162 |
| Nov 1, 2:30 PM MST | 29.5 | 24.4 | -0.22–162 |
| Nov 1, 1:30 PM MST | 54.4 | 24.4 | -0.22–162 |
| Nov 1, 12:15 PM MST | 34.3 | 24.4 | -0.22–162 |
| Nov 1, 11:15 AM MST | 24.1 | 24.2 | -0.22–162 |
| Nov 1, 10:15 AM MST | 33 | 24.1 | -0.22–162 |
| Nov 1, 9:15 AM MST | 23.5 | 23.9 | -0.22–162 |
| Nov 1, 8:15 AM MST | 79.6 | 23.8 | -0.22–162 |
| Nov 1, 5:15 AM MST | 62.2 | 24.1 | -0.22–162 |
| Nov 1, 4:15 AM MST | 42.9 | 24.2 | -0.22–162 |
| Nov 1, 2:30 AM MST | 14.4 | 24.2 | -0.22–162 |
| Nov 1, 1:00 AM MST | 4.84 | – | -0.22–162 |
| Oct 31, 11:00 PM MST | 19.2 | – | -0.12–558 |
| Oct 31, 10:00 PM MST | 90 | – | -0.12–558 |
| Oct 31, 9:00 PM MST | 4.71 | – | -0.12–558 |
| Oct 31, 7:45 PM MST | 57.5 | 24.2 | -0.12–558 |
| Oct 31, 6:45 PM MST | 77.5 | 24.3 | -0.12–558 |
| Oct 31, 5:45 PM MST | 13.8 | 23.9 | -0.12–558 |
| Oct 31, 4:45 PM MST | 33.4 | 24.2 | -0.12–558 |
| Oct 31, 3:45 PM MST | 0 | 24.5 | -0.12–558 |
| Oct 31, 2:30 PM MST | 28.8 | 24.2 | -0.12–558 |
| Oct 31, 1:30 PM MST | 48.3 | 24.2 | -0.12–558 |
| Oct 31, 11:30 AM MST | 18.7 | 24 | -0.12–558 |
| Oct 31, 9:30 AM MST | 0 | 24.2 | -0.12–558 |
| Oct 31, 8:15 AM MST | 0 | 24.1 | -0.12–558 |
| Oct 31, 7:00 AM MST | 19.3 | – | -0.12–558 |
| Oct 31, 6:00 AM MST | 0 | – | -0.12–558 |
| Oct 31, 4:30 AM MST | 0 | 24.2 | -0.12–558 |
| Oct 31, 3:30 AM MST | 19.2 | 24.2 | -0.12–558 |
| Oct 31, 2:00 AM MST | 9.65 | – | -0.12–558 |
| Oct 31, 1:00 AM MST | 9.72 | – | -0.12–558 |
| Oct 31, 12:00 AM MST | 19.6 | – | -0.12–558 |
| Oct 30, 10:45 PM MST | 24.6 | 24.4 | 23–270 |
| Oct 30, 9:45 PM MST | 34.2 | 24.3 | 23–270 |
| Oct 30, 8:45 PM MST | 43.7 | 24.3 | 23–270 |
| Oct 30, 7:45 PM MST | 33.8 | 24.2 | 23–270 |
| Oct 30, 6:45 PM MST | 4.91 | 24.3 | 23–270 |
| Oct 30, 5:45 PM MST | 14.8 | 24.4 | 23–270 |
| Oct 30, 4:45 PM MST | 4.83 | 24.2 | 23–270 |
| Oct 30, 3:45 PM MST | 14.6 | 24.3 | 23–270 |
| Oct 30, 2:45 PM MST | 19.5 | 24.4 | 23–270 |
| Oct 30, 1:45 PM MST | 4.93 | 24.3 | 23–270 |
| Oct 30, 12:45 PM MST | 34.1 | 24.3 | 23–270 |
| Oct 30, 11:45 AM MST | 29.6 | 24.2 | 23–270 |
| Oct 30, 10:45 AM MST | 24.7 | 24.5 | 23–270 |
| Oct 30, 9:45 AM MST | 0 | 24.5 | 23–270 |
| Oct 30, 8:45 AM MST | 4.97 | 24.4 | 23–270 |
| Oct 30, 7:30 AM MST | 0 | 24.4 | 23–270 |
| Oct 30, 6:30 AM MST | 4.95 | 24.4 | 23–270 |
| Oct 30, 5:00 AM MST | 25.1 | – | 23–270 |
| Oct 30, 3:00 AM MST | 10.1 | – | 23–270 |
| Oct 30, 2:00 AM MST | 0 | – | 23–270 |
| Oct 30, 1:00 AM MST | 19.9 | – | 23–270 |
| Oct 30, 12:00 AM MST | 20.1 | – | 23–270 |
| Oct 29, 11:00 PM MST | 56.8 | – | 2.5–260 |
| Oct 29, 10:00 PM MST | 45.2 | – | 2.5–260 |
| Oct 29, 9:00 PM MST | 47.4 | – | 2.5–260 |
| Oct 29, 8:00 PM MST | 76.6 | – | 2.5–260 |
| Oct 29, 7:00 PM MST | 73.2 | 24.3 | 2.5–260 |
Map of USGS gauge 09527660 and the river around it
Where BROCK RESERVOIR OUTLET NEAR CALEXICO, CA sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines CDFW uses are 67°F.
Species list not on file for this gauge. Check the California Department of Fish and Wildlife: California fish planting schedule · California fishing regulations.
Normal for Nov 5: 29–395 ft³/s (middle half of 13 years of record). Now: 4.84 ft³/s, below normal.
Below normal for this date. 4.84 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 13 years of record (2014–2026): 10th -1.6, 25th 29, median 162, 75th 395, 90th 550 ft³/s.
Daily means on record for Nov 5: lowest -2.6 ft³/s, highest 557 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Rising over 24 hours: discharge up 100%, from 0 to 4.84 ft³/s. Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Rising water. Rising over the last 24 hours (discharge up 100%). Keep your way back to the bank in sight and watch the level while you fish. “Rising” is our rule of thumb: more than 10% in discharge or 0.2 ft of gauge height in 24 hours, not a USGS or NWS class.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
Checked Nov 5, 6:58 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.