Low-Lying Areas of Carmel Valley being Evacuated as River nears Flood Stage

February 20, 2017

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A good day for ducks at the Carmel River Lagoon

A mandatory evacuation has been ordered for all low-lying areas of Carmel Valley, as the Carmel River continues to rise toward a projected peak of 10.4 feet at the Robles del Rio gauge.

Here is the message from the Monterey County Office of Emergency Services:

A mandatory evacuation order has been given for residents who may be affected by flooding on the Carmel River.

The Carmel River is expected to hit flood stage beginning at 4 pm today and peak beginning at 8 pm tonight. Those affected are asked to leave as quickly as feasible. Areas that may be impacted by flooding include all low-lying areas adjacent to the entire stem of the river from the Los Padres Dam to Mission Fields.

The Red Cross has established an evacuation center at Carmel Middle School, 4389 Carmel Valley Road. The SPCA of Monterey County will be on hand to assist evacuees with their companion animals, please call the SPCA if you have large animals that need to be removed 831-373-2631.

Call 211 or text 898-211 “windstorm” for additional information.

As of 3:45 pm, the river was at 8.15 feet (5,600 cubic feet per second) at the Robles del Rio gauge.

Minor flood stage begins at 8.5 feet (revised down from 9 feet when minor flooding began along Paso Hondo at less than 9 feet last month). River systems are dynamic and rapidly changing during times of high water, making it impossible to predict exactly what will flood, or how deeply, at any given water level. This uncertainty is undoubtedly why such an extensive evacuation has been ordered.

The Carmel River reached 9.1 feet on January 11.

View the Robles del Rio gauge here.

5:30 pm Update: As of 5:00 pm, the Carmel River had actually gone down a little at the Robles del Rio gauge, measuring 8.06 feet (5,450 cfs), but heavy rain has begun moving into the area and, if it continues, this decline may be short-lived.

7:45 pm Update: As of 7:15 pm, the Carmel River had dropped to 7.73 feet (4,880 cfs), but it looks like it may have bottomed out and begun to climb again.

8:45 pm  Update: The Carmel River is officially on the rise again. 7.93 feet (5,230 cfs) as of 8:15 pm at Robles del Rio.

10:00 pm Update: At 8.54 feet, as of 9:45 pm, the Carmel River has now reached minor flood stage. It is flowing through Robles del Rio at about 6,300 cfs. The Hydrologic Prediction people have bumped the projected peak up to 10.8 feet. Hopefully, the river will peak below that level.

10:30 pm Update: As of 10:15 pm, the Carmel River was nearly back to its January high water mark. 9.0 feet at Robles del Rio (7,180 cfs).

11:00 pm Update: As of 10:45, the Carmel River was at 9.39 feet (8,030 cfs). This is the highest flow the Carmel River has seen since 1998, but still only about half the flow of the disastrous 16,000 cfs flood of 1995.

Midnight Update: As of 11:45, the river was up to 9.96 feet (9,370 cfs) at Robles del Rio. The good news is that the height of the water flowing over the spillway at Los Padres Dam appears to have leveled off, meaning the peak flow is probably passing, or has just passed, that location. Those near the river who have not evacuated should continue to carefully monitor the river and the upstream gauges.

5:30 am Update: The Carmel River peaked at around 10 feet on the Robles del Rio gauge, shortly after midnight – failing to reach the predicted 10.8 feet. As of 4:45 am it had slipped below flood stage to 8.44 feet (6,120 cfs). The peak, which has swollen to around 15,900 cfs as it has travelled downstream  is only now reaching the mouth of Carmel Valley.

8:00 am Update: The peak has now passed out to sea and all parts of the river are going down. As of 6:45 am, the Robles del Rio gauge was showing 8.06 feet (5,450 cfs) and, as of 6:30 am, the Near Carmel gauge was showing 14,100 cfs.

Here’s what the river mouth looked like an hour ago:

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Big Sur River Above Flood Stage for Fifth Time This Year

February 20, 2017

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South Coast oaks in the rain

Heavy pre-dawn rain has pushed the Big Sur River above the 10-foot level that marks its official “flood stage” for the fifth time in less than two months.

As of 9:00 am, the river was at 10.30 feet, which indicates a flow of 3,530 cubic feet per second.

On January 12, the Big Sur River hit 12.34 feet (or 7,650 cfs – more than twice the current flow); the second highest peak recorded since the gauge was installed. The highest was an amazing 10,700 cfs, recorded in January 1978, following the Marble Cone Fire.

This morning’s rain can’t be helping the situation at Pfeiffer Gulch, where a slide has been slowly pulling down the Highway bridge. Interestingly, when the bridge was built in the 1960’s, Caltrans erroneously signed it as the Pfeiffer Canyon Bridge and, taking their cue from the sign on the collapsing bridge, everyone now seems to be referring to the place as Pfeiffer Canyon.

It’s not the first time this ravine has undergone a name change or, apparently, had bridge trouble. According to Clark’s Monterey County Place Names, the Pfeiffers themselves knew the place as Burnt Bridge Creek.

See the Big Sur River Gauge here.

Noon Update: As of 11:45 the Big Sur River was still rising and had reached 10.85 feet, or 4,370 cfs.

1:00 pm Update: As of 12:45, the Big Sur River had reached 11.07 feet (4,730 cfs). The Carmel River is also rising and is projected to crest more than a foot above its January high water mark. If this happens, there will almost certainly be some flood damage.

2:00 pm Update: The Big Sur River has been level at 11.10 feet (4,790 cfs) for the past half hour. Rain is expected to become more intense this evening, so another rise will be possible tonight.

5:30 pm Update: As of 5:15 pm, the Big Sur River had receded to 10.3 feet (3,530 cfs); which is still above flood stage. Rain is beginning to pick up again over the Big Sur watershed and, if that continues, the river may begin rising again soon.

7:00 pm Update: Hard rain is falling and the Big Sur River is on the rise again. 10.40 feet (3,680 cfs) as of 6:30 pm.

9:00 pm Update: The Big Sur River is rising quickly and has surpassed this afternoon’s peak. As of 8:45 it was at 11.78 feet (5,960 cfs).

10:00 pm Update: Has the Big Sur River found its peak? It made it to around 12.22 feet, just shy of last month’s high water mark of 12.34 feet (the 2nd highest peak ever recorded), but has now (as of 9:45 pm) dropped back to 11.97 feet (6,310 cfs).

11:30 pm Update: The Big Sur River is rising again and, as of 11:15 pm, was back to 12.13 feet (6,570 cfs).

Midnight Update: That rise was short-lived. The Big Sur River is back under 12 feet and falling. Unless unexpectedly heavy rains arrive, it should continue to fall throughout the night.

12:30 pm 2-21-17 Update: The Big Sur River finally went back below flood stage around 11:00 this morning. Its twin peaks last night may have been a bit lower than the January high water mark, but the fact that it remained above flood stage for more than 24 hours is probably some kind of record.

As of 11:45 am, it was at 9.9 feet (2,940 cfs).