Laguna de Santa Rosa at Stony Point Road NR Cotati
2.5 mi- Level
- 73.4 ft
- Flow
- 1 cfs
Forecast peak 73.0 ft Sat 3 AM
Reading from Sat 1:30 AM · NWS gauge page
Appearance
Starts in 4 h 39 min
Issued for this forecast zone · National Weather Service San Francisco CA
What
Up to 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways.
Impacts
High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas.
Additional details
At the San Francisco tidal gauge, high tide is expected to be 1.1 ft above normal (6.9 ft MLLW) at 10:39 AM Saturday 10/24, 1.4 ft above normal (7.2 ft MLLW) at 11:07 AM Sunday 10/25, 1.7 ft above normal (7.5 ft MLLW) at 11:39 AM Monday 10/26, 1.8 ft above normal (7.6 ft MLLW) at 12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, and 1.7 ft above normal (7.5 ft MLLW) at 01:43 PM Thursday 10/29. These predictions include up to 1.0 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
Precautionary actions
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Areas: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
See it on weather.gov (opens in a new tab)Observed 3:00 AM PDT at KSTS
Clear and 48°9°.
Today: low 43°6° (likely 40°4° to 47°8°), high 75°24° (likely 72°22° to 76°24°).
Now 48°9°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 3a | Clear | 47°8° (likely 44°7° to 49°9°) | 47°8° | 0% | 2 mph3 km/h from NNW, gusts 3 mph5 km/h | 64% | 0% | 0 |
| Sat 4a | Clear | 46°8° (likely 42°6° to 49°9°) | 46°8° | 0% | 2 mph3 km/h from NNW, gusts 3 mph6 km/h | 65% | 1% | 0 |
| Sat 5a | Clear | 44°7° (likely 41°5° to 48°9°) | 44°7° | 0% | 2 mph3 km/h from NW, gusts 4 mph6 km/h | 67% | 0% | 0 |
| Sat 6a | Clear | 44°7° (likely 41°5° to 48°9°) | 44°7° | 0% | 1 mph2 km/h from NW, gusts 4 mph7 km/h | 66% | 1% | 0 |
| Sat 7a | Sunny | 44°7° (likely 41°5° to 47°8°) | 44°7° | 0% | 1 mph2 km/h from NW, gusts 3 mph5 km/h | 68% | 0% | 0 |
| Sat 8a | Sunny | 44°7° (likely 41°5° to 48°9°) | 44°7° | 0% | 1 mph2 km/h from W, gusts 3 mph5 km/h | 69% | 0% | 0 |
| Sat 9a | Sunny | 49°9° (likely 45°7° to 53°12°) | 49°9° | 0% | 1 mph2 km/h from N, gusts 3 mph5 km/h | 70% | 1% | 0 |
| Sat 10a | Sunny | 55°13° (likely 54°12° to 61°16°) | 55°13° | 0% | 1 mph2 km/h from NNW, gusts 3 mph5 km/h | 64% | 0% | 1 |
| Sat 11a | Sunny | 62°17° (likely 62°17° to 67°19°) | 62°17° | 0% | 1 mph2 km/h from N, gusts 3 mph6 km/h | 53% | 0% | 3 |
| Sat 12p | Sunny | 68°20° (likely 68°20° to 72°22°) | 68°20° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 44% | 0% | 4 |
| Sat 1p | Sunny | 71°22° (likely 70°21° to 76°24°) | 71°22° | 0% | 1 mph2 km/h from NW, gusts 5 mph8 km/h | 38% | 0% | 4 |
| Sat 2p | Sunny | 73°23° (likely 72°22° to 76°24°) | 73°23° | 0% | 2 mph3 km/h from W, gusts 8 mph13 km/h | 36% | 0% | 4 |
| Sat 3p | Sunny | 74°23° (likely 72°22° to 75°24°) | 74°23° | 0% | 3 mph5 km/h from WSW, gusts 11 mph18 km/h | 36% | 0% | 3 |
| Sat 4p | Sunny | 72°22° (likely 69°21° to 72°22°) | 72°22° | 0% | 6 mph10 km/h from WSW, gusts 13 mph21 km/h | 41% | 0% | 2 |
| Sat 5p | Sunny | 69°21° (likely 66°19° to 69°21°) | 69°21° | 0% | 6 mph10 km/h from WSW, gusts 12 mph20 km/h | 48% | 0% | 2 |
| Sat 6p | Clear | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 2 mph3 km/h from SW, gusts 9 mph15 km/h | 60% | 40% | 1 |
| Sat 7p | Mostly clear | 57°14° (likely 57°14° to 59°15°) | 57°14° | 0% | 0 mph0 km/h, gusts 7 mph12 km/h | 75% | 16% | 0 |
| Sat 8p | Clear | 54°12° (likely 53°12° to 56°13°) | 54°12° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 85% | 1% | 0 |
| Sat 9p | Mostly clear | 52°11° (likely 51°11° to 54°12°) | 52°11° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 90% | 22% | 0 |
| Sat 10p | Clear | 51°11° (likely 49°9° to 53°12°) | 51°11° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 92% | 16% | 0 |
| Sat 11p | Clear | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 92% | 19% | 0 |
| Sun 12a | Clear | 50°10° (likely 47°8° to 51°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 89% | 39% | 0 |
| Sun 1a | Mostly clear | 49°9° (likely 47°8° to 51°11°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 92% | 76% | 0 |
| Sun 2a | Fog | 48°9° (likely 46°8° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 94% | 82% | 0 |
| Sun 3a | Fog | 46°8° (likely 45°7° to 50°10°) | 46°8° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 95% | 73% | 0 |
| Sun 4a | Fog | 45°7° (likely 44°7° to 49°9°) | 45°7° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 94% | 81% | 0 |
| Sun 5a | Fog | 43°6° (likely 43°6° to 48°9°) | 43°6° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 98% | 79% | 0 |
| Sun 6a | Fog | 42°6° (likely 42°6° to 47°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 1 mph1 km/h | 95% | 80% | 0 |
| Sun 7a | Fog | 42°6° (likely 42°6° to 47°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 97% | 81% | 0 |
| Sun 8a | Fog | 42°6° (likely 42°6° to 48°9°) | 42°6° | 0% | 1 mph2 km/h from E, gusts 1 mph2 km/h | 97% | 76% | 0 |
| Sun 9a | Fog | 46°8° (likely 46°8° to 52°11°) | 47°8° | 0% | 1 mph2 km/h from E, gusts 2 mph3 km/h | 96% | 63% | 1 |
| Sun 10a | Partly sunny | 53°12° (likely 50°10° to 58°14°) | 53°12° | 0% | 1 mph2 km/h from E, gusts 3 mph4 km/h | 86% | 60% | 2 |
| Sun 11a | Partly sunny | 59°15° (likely 54°12° to 63°17°) | 59°15° | 0% | 1 mph2 km/h from SSE, gusts 3 mph4 km/h | 70% | 56% | 3 |
| Sun 12p | Cloudy | 65°18° (likely 61°16° to 67°19°) | 65°18° | 0% | 1 mph2 km/h from SSE, gusts 5 mph8 km/h | 59% | 70% | 4 |
| Sun 1p | Partly sunny | 68°20° (likely 66°19° to 70°21°) | 69°21° | 0% | 1 mph2 km/h from SSE, gusts 6 mph10 km/h | 51% | 72% | 4 |
| Sun 2p | Partly sunny | 70°21° (likely 66°19° to 71°22°) | 70°21° | 0% | 3 mph5 km/h from SW, gusts 8 mph13 km/h | 48% | 79% | 4 |
| Sun 3p | Cloudy | 71°22° (likely 64°18° to 71°22°) | 71°22° | 0% | 3 mph5 km/h from SW, gusts 11 mph18 km/h | 48% | 84% | 3 |
| Sun 4p | Cloudy | 69°21° (likely 62°17° to 69°21°) | 69°21° | 0% | 3 mph5 km/h from SW, gusts 11 mph18 km/h | 51% | 88% | 3 |
| Sun 5p | Cloudy | 67°19° (likely 59°15° to 67°19°) | 67°19° | 0% | 2 mph3 km/h from WSW, gusts 11 mph18 km/h | 56% | 92% | 1 |
| Sun 6p | Cloudy | 63°17° (likely 57°14° to 63°17°) | 63°17° | 0% | 2 mph3 km/h from WSW, gusts 10 mph17 km/h | 68% | 94% | 0 |
| Sun 7p | Cloudy | 58°14° (likely 53°12° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from WSW, gusts 9 mph14 km/h | 79% | 87% | 0 |
| Sun 8p | Partly cloudy | 54°12° (likely 51°11° to 56°13°) | 54°12° | 0% | 0 mph0 km/h, gusts 10 mph16 km/h | 88% | 49% | 0 |
| Sun 9p | Partly cloudy | 52°11° (likely 50°10° to 54°12°) | 52°11° | 0% | 0 mph0 km/h, gusts 9 mph14 km/h | 93% | 29% | 0 |
| Sun 10p | Clear | 51°11° (likely 48°9° to 53°12°) | 51°11° | 0% | 0 mph0 km/h, gusts 8 mph13 km/h | 96% | 30% | 0 |
| Sun 11p | Clear | 50°10° (likely 46°8° to 53°12°) | 50°10° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 97% | 33% | 0 |
| Mon 12a | Fog | 49°9° (likely 45°7° to 53°12°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 98% | 41% | 0 |
| Mon 1a | Fog | 48°9° (likely 46°8° to 53°12°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 100% | 51% | 0 |
| Mon 2a | Fog | 48°9° (likely 47°8° to 53°12°) | 48°9° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 100% | 59% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Sunny. High near 75, with temperatures falling to around 69 in the afternoon. Northwest wind 0 to 6 mph.
Tonight: Mostly clear, with a low around 43. Northwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 75°24°).
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: Areas of fog before 10am. Mostly sunny, with a high near 72. South wind 0 to 3 mph.
Night: Areas of fog after 10pm. Mostly cloudy, with a low around 41. West northwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 11am. Mostly sunny, with a high near 67.
Night: Areas of fog after 2am. Partly cloudy, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Mostly sunny, with a high near 67.
Night: Areas of fog after 9pm. Partly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Partly sunny, with a high near 66.
Night: Areas of fog after 10pm. Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before noon, then a slight chance of rain. Partly sunny, with a high near 64.
Night: A slight chance of rain before 9pm, then areas of fog and a chance of rain. Partly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and a chance of rain before 8am, then a chance of rain and patchy fog. Partly sunny, with a high near 64.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance · 0.04 in1 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 75°, low 43°.
Dry, high 72°, low 41°, cooling off.
Dry, high 67°, low 40°, cooling off.
Mostly dry, highs 64–68°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 73.0 ft Sat 3 AM
Reading from Sat 1:30 AM · NWS gauge page
Reading from Sat 2 AM · NWS gauge page
Reading from Sat 2 AM · NWS gauge page
Reading from Sat 1:37 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 44% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 3 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 46°F).
Today, 11:00 AM–6:00 PM
Good stretch to open the windows.
Today’s expected high is about typical for the date.
Cotati weather by month: normals, records, snow and freeze dates
Sunrise 7:28 AM, sunset 6:20 PM.
Clear 3:21–7:01 AM; moon 96% lit, sets 5:50 AM.
Waxing gibbous
96% lit · growing