Nathanson Creek at Sonoma
0.7 mi- Level
- -0.2 ft
Reading from Sat 10:15 AM · NWS gauge page
Appearance
Ends in 5 days 3 h
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, 1.5 ft above normal (7.3 ft MLLW) at 11:07 AM Sunday 10/25, 1.6 ft above normal (7.4 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 11:15 AM PDT at KAPC
Sunny and 68°20°, jacket by 9 PM.
Today: low 42°6° (likely 42°6° to 49°9°), high 75°24° (likely 72°22° to 75°24°).
Now 68°20°
Sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 11a | Sunny | 65°18° (likely 65°18° to 68°20°) | 65°18° | 0% | 5 mph8 km/h from SE, gusts 7 mph12 km/h | 43% | 0% | 3 |
| Sat 12p | Sunny | 70°21° (likely 68°20° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from ESE, gusts 7 mph11 km/h | 40% | 0% | 4 |
| Sat 1p | Sunny | 72°22° (likely 70°21° to 72°22°) | 72°22° | 0% | 5 mph8 km/h from SE, gusts 7 mph11 km/h | 37% | 0% | 4 |
| Sat 2p | Sunny | 74°23° (likely 71°22° to 74°23°) | 74°23° | 0% | 5 mph8 km/h from SSE, gusts 6 mph10 km/h | 35% | 1% | 4 |
| Sat 3p | Sunny | 75°24° (likely 72°22° to 75°24°) | 75°24° | 0% | 5 mph8 km/h from S, gusts 7 mph11 km/h | 35% | 0% | 3 |
| Sat 4p | Sunny | 74°23° (likely 71°22° to 74°23°) | 74°23° | 0% | 5 mph8 km/h from SW, gusts 10 mph16 km/h | 35% | 0% | 2 |
| Sat 5p | Sunny | 72°22° (likely 69°21° to 72°22°) | 73°23° | 0% | 5 mph8 km/h from WSW, gusts 13 mph21 km/h | 36% | 0% | 2 |
| Sat 6p | Clear | 68°20° (likely 63°17° to 68°20°) | 68°20° | 0% | 2 mph3 km/h from WSW, gusts 13 mph20 km/h | 47% | 0% | 1 |
| Sat 7p | Clear | 60°16° (likely 59°15° to 61°16°) | 60°16° | 0% | 1 mph2 km/h from W, gusts 8 mph13 km/h | 57% | 0% | 0 |
| Sat 8p | Clear | 56°13° (likely 55°13° to 59°15°) | 56°13° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 65% | 0% | 0 |
| Sat 9p | Clear | 54°12° (likely 52°11° to 57°14°) | 54°12° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 68% | 0% | 0 |
| Sat 10p | Clear | 53°12° (likely 50°10° to 55°13°) | 53°12° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 70% | 1% | 0 |
| Sat 11p | Clear | 52°11° (likely 49°9° to 53°12°) | 52°11° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 75% | 7% | 0 |
| Sun 12a | Clear | 50°10° (likely 48°9° to 53°12°) | 51°11° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 75% | 13% | 0 |
| Sun 1a | Mostly clear | 50°10° (likely 47°8° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 76% | 38% | 0 |
| Sun 2a | Mostly clear | 48°9° (likely 46°8° to 51°11°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 78% | 58% | 0 |
| Sun 3a | Mostly clear | 46°8° (likely 46°8° to 50°10°) | 46°8° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 78% | 56% | 0 |
| Sun 4a | Mostly clear | 45°7° (likely 45°7° to 50°10°) | 45°7° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 81% | 64% | 0 |
| Sun 5a | Partly cloudy | 44°7° (likely 44°7° to 49°9°) | 44°7° | 0% | 0 mph0 km/h, gusts 3 mph6 km/h | 84% | 73% | 0 |
| Sun 6a | Partly cloudy | 43°6° (likely 43°6° to 48°9°) | 43°6° | 0% | 0 mph0 km/h, gusts 3 mph6 km/h | 83% | 73% | 0 |
| Sun 7a | Partly sunny | 43°6° (likely 43°6° to 47°8°) | 43°6° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 87% | 56% | 0 |
| Sun 8a | Partly sunny | 44°7° (likely 43°6° to 48°9°) | 44°7° | 0% | 1 mph2 km/h from ENE, gusts 4 mph7 km/h | 88% | 73% | 0 |
| Sun 9a | Partly sunny | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 1 mph2 km/h from ENE, gusts 4 mph6 km/h | 78% | 78% | 1 |
| Sun 10a | Cloudy | 58°14° (likely 56°13° to 59°15°) | 58°14° | 0% | 1 mph2 km/h from ENE, gusts 3 mph6 km/h | 66% | 81% | 2 |
| Sun 11a | Partly sunny | 62°17° (likely 61°16° to 64°18°) | 63°17° | 0% | 3 mph5 km/h from SSE, gusts 4 mph7 km/h | 57% | 74% | 3 |
| Sun 12p | Cloudy | 67°19° (likely 65°18° to 67°19°) | 67°19° | 0% | 3 mph5 km/h from SSE, gusts 5 mph8 km/h | 54% | 79% | 4 |
| Sun 1p | Cloudy | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 3 mph5 km/h from SSE, gusts 6 mph10 km/h | 49% | 84% | 4 |
| Sun 2p | Cloudy | 71°22° (likely 69°21° to 71°22°) | 71°22° | 0% | 5 mph8 km/h from S, gusts 7 mph11 km/h | 46% | 88% | 4 |
| Sun 3p | Cloudy | 72°22° (likely 69°21° to 72°22°) | 73°23° | 0% | 5 mph8 km/h from S, gusts 7 mph11 km/h | 45% | 89% | 3 |
| Sun 4p | Cloudy | 72°22° (likely 69°21° to 72°22°) | 72°22° | 0% | 5 mph8 km/h from S, gusts 8 mph13 km/h | 45% | 88% | 2 |
| Sun 5p | Cloudy | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 2 mph3 km/h from SW, gusts 9 mph14 km/h | 45% | 92% | 1 |
| Sun 6p | Cloudy | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 2 mph3 km/h from SW, gusts 9 mph15 km/h | 55% | 93% | 0 |
| Sun 7p | Cloudy | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 2 mph3 km/h from SW, gusts 11 mph17 km/h | 63% | 89% | 0 |
| Sun 8p | Cloudy | 57°14° (likely 55°13° to 57°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 10 mph16 km/h | 69% | 71% | 0 |
| Sun 9p | Partly cloudy | 54°12° (likely 52°11° to 55°13°) | 54°12° | 0% | 0 mph0 km/h, gusts 8 mph13 km/h | 75% | 35% | 0 |
| Sun 10p | Clear | 52°11° (likely 50°10° to 53°12°) | 52°11° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 80% | 7% | 0 |
| Sun 11p | Clear | 51°11° (likely 48°9° to 52°11°) | 51°11° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 84% | 9% | 0 |
| Mon 12a | Mostly clear | 50°10° (likely 47°8° to 51°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 87% | 25% | 0 |
| Mon 1a | Clear | 49°9° (likely 46°8° to 50°10°) | 49°9° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 90% | 34% | 0 |
| Mon 2a | Partly cloudy | 47°8° (likely 45°7° to 51°11°) | 47°8° | 0% | 1 mph2 km/h from W, gusts 7 mph11 km/h | 92% | 43% | 0 |
| Mon 3a | Fog | 46°8° (likely 46°8° to 51°11°) | 46°8° | 0% | 1 mph2 km/h from W, gusts 7 mph11 km/h | 95% | 49% | 0 |
| Mon 4a | Fog | 45°7° (likely 45°7° to 50°10°) | 45°7° | 0% | 1 mph2 km/h from W, gusts 6 mph10 km/h | 98% | 51% | 0 |
| Mon 5a | Fog | 44°7° (likely 44°7° to 50°10°) | 44°7° | 0% | 1 mph2 km/h from W, gusts 6 mph10 km/h | 100% | 45% | 0 |
| Mon 6a | Fog | 42°6° (likely 42°6° to 52°11°) | 43°6° | 0% | 1 mph2 km/h from W, gusts 6 mph10 km/h | 100% | 78% | 0 |
| Mon 7a | Fog | 42°6° (likely 42°6° to 51°11°) | 42°6° | 0% | 1 mph2 km/h from W, gusts 7 mph11 km/h | 100% | 66% | 0 |
| Mon 8a | Fog | 44°7° (likely 43°6° to 51°11°) | 44°7° | 0% | 2 mph3 km/h from W, gusts 8 mph12 km/h | 100% | 43% | 0 |
| Mon 9a | Partly sunny | 49°9° (likely 48°9° to 54°12°) | 49°9° | 0% | 2 mph3 km/h from W, gusts 8 mph13 km/h | 92% | 30% | 1 |
| Mon 10a | Partly sunny | 56°13° (likely 56°13° to 59°15°) | 56°13° | 0% | 2 mph3 km/h from W, gusts 11 mph18 km/h | 81% | 39% | 2 |
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 72 in the afternoon. South southeast wind around 5 mph.
Tonight: Mostly clear. Low around 42, with temperatures rising to around 44 overnight. Northwest wind around 2 mph.
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
Official NWS forecast
Day: Mostly sunny. High near 73, with temperatures falling to around 70 in the afternoon. Southeast wind 0 to 5 mph.
Night: Areas of fog after 3am. Partly cloudy, with a low around 42. West wind around 2 mph.
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: Patchy fog before 9am. Mostly sunny, with a high near 69. West wind 1 to 9 mph, with gusts as high as 20 mph.
Night: Areas of fog after 2am. Mostly clear, with a low around 40.
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 9am. Mostly sunny, with a high near 69.
Night: Areas of fog after 4am. 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 9am. Mostly sunny, with a high near 68.
Night: Areas of fog after 4am. Mostly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
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, then a chance of rain. Partly sunny, with a high near 65.
Night: A chance of rain before 3am, then areas of fog and a slight chance of rain between 3am and 5am, then a chance of rain and patchy fog. 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: A chance of rain and patchy fog. Partly sunny, with a high near 65.
Night: A chance of rain before midnight, then a chance of rain and patchy fog between midnight and 2am, then areas of fog and a chance of rain between 2am and 5am, then a chance of rain and patchy fog. Mostly cloudy, with a low around 41.
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.
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
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.
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
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
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.
Dry, high 75°, low 42°.
Dry, high 73°, low 42°.
Dry, high 69°, low 40°, cooling off.
Mostly dry, highs 60–69°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Reading from Sat 10:15 AM · NWS gauge page
Reading from Sat 10:45 AM · NWS gauge page
Reading from Sat 10:50 AM · NWS gauge page
Reading from Sat 5:55 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 27% 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 2 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 46°F).
Today, 12:00 PM–7:00 PM
Good stretch to open the windows.
Today’s expected high is about typical for the date.
On average 1°0° warmer than normal (daily mean temperature).
Sonoma weather by month: normals, records, snow and freeze dates
Sunrise 7:27 AM, sunset 6:19 PM.
Mostly clear 6:46 PM–1 AM, but the moon is 99% lit and up.
Waxing gibbous
97% lit · growing