Mark West Creek near Mirabel Heights
4.3 mi- Level
- 38.8 ft
- Flow
- 2 cfs
Forecast peak 38.7 ft Sat 7 AM
Reading from Sat 5:45 AM · NWS gauge page
Appearance
Starts in 17 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, 1.5 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 7:20 AM PDT at KSTS
Clear and 43°6°.
Today: low 41°5° (likely 41°5° to 47°8°), high 76°24° (likely 74°23° to 77°25°).
Now 43°6°
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 7a | Mostly sunny | 43°6° (likely 41°5° to 47°8°) | 43°6° | 0% | 2 mph3 km/h from N, gusts 3 mph5 km/h | 72% | 8% | 0 |
| Sat 8a | Sunny | 43°6° (likely 42°6° to 48°9°) | 43°6° | 0% | 2 mph3 km/h from ENE, gusts 3 mph4 km/h | 74% | 3% | 0 |
| Sat 9a | Sunny | 49°9° (likely 47°8° to 54°12°) | 49°9° | 0% | 2 mph3 km/h from ENE, gusts 2 mph3 km/h | 70% | 0% | 0 |
| Sat 10a | Sunny | 56°13° (likely 56°13° to 61°16°) | 56°13° | 0% | 1 mph2 km/h from N, gusts 2 mph4 km/h | 60% | 0% | 1 |
| Sat 11a | Sunny | 62°17° (likely 62°17° to 67°19°) | 62°17° | 0% | 1 mph2 km/h from S, gusts 5 mph7 km/h | 50% | 0% | 3 |
| Sat 12p | Sunny | 68°20° (likely 67°19° to 71°22°) | 69°21° | 0% | 1 mph2 km/h from SW, gusts 4 mph7 km/h | 42% | 0% | 4 |
| Sat 1p | Sunny | 72°22° (likely 70°21° to 75°24°) | 72°22° | 0% | 1 mph2 km/h from SW, gusts 6 mph10 km/h | 37% | 0% | 4 |
| Sat 2p | Sunny | 74°23° (likely 73°23° to 77°25°) | 74°23° | 0% | 2 mph3 km/h from SW, gusts 6 mph10 km/h | 33% | 0% | 4 |
| Sat 3p | Sunny | 75°24° (likely 73°23° to 77°25°) | 75°24° | 0% | 3 mph5 km/h from SW, gusts 9 mph14 km/h | 33% | 0% | 3 |
| Sat 4p | Sunny | 74°23° (likely 72°22° to 75°24°) | 74°23° | 0% | 6 mph10 km/h from WSW, gusts 10 mph17 km/h | 34% | 0% | 2 |
| Sat 5p | Sunny | 71°22° (likely 69°21° to 73°23°) | 71°22° | 0% | 6 mph10 km/h from SW, gusts 10 mph17 km/h | 40% | 0% | 2 |
| Sat 6p | Clear | 67°19° (likely 64°18° to 67°19°) | 67°19° | 0% | 3 mph5 km/h from S, gusts 9 mph15 km/h | 50% | 0% | 1 |
| Sat 7p | Clear | 59°15° (likely 59°15° to 61°16°) | 59°15° | 0% | 1 mph2 km/h from SSE, gusts 8 mph12 km/h | 64% | 30% | 0 |
| Sat 8p | Mostly clear | 55°13° (likely 55°13° to 57°14°) | 55°13° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 77% | 11% | 0 |
| Sat 9p | Clear | 53°12° (likely 52°11° to 55°13°) | 53°12° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 82% | 4% | 0 |
| Sat 10p | Clear | 51°11° (likely 50°10° to 54°12°) | 51°11° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 84% | 17% | 0 |
| Sat 11p | Mostly clear | 50°10° (likely 49°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 87% | 43% | 0 |
| Sun 12a | Mostly clear | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 83% | 56% | 0 |
| Sun 1a | Partly cloudy | 49°9° (likely 46°8° to 51°11°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 86% | 62% | 0 |
| Sun 2a | Fog | 48°9° (likely 45°7° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 88% | 62% | 0 |
| Sun 3a | Fog | 45°7° (likely 45°7° to 50°10°) | 45°7° | 0% | 0 mph0 km/h, gusts 2 mph2 km/h | 91% | 63% | 0 |
| Sun 4a | Fog | 44°7° (likely 44°7° to 49°9°) | 44°7° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 92% | 66% | 0 |
| Sun 5a | Fog | 43°6° (likely 43°6° to 48°9°) | 43°6° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 95% | 68% | 0 |
| Sun 6a | Fog | 42°6° (likely 42°6° to 48°9°) | 42°6° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 90% | 68% | 0 |
| Sun 7a | Fog | 42°6° (likely 42°6° to 47°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 94% | 69% | 0 |
| Sun 8a | Fog | 42°6° (likely 42°6° to 48°9°) | 42°6° | 0% | 1 mph2 km/h from ENE, gusts 2 mph3 km/h | 96% | 70% | 0 |
| Sun 9a | Partly sunny | 47°8° (likely 46°8° to 53°12°) | 47°8° | 0% | 1 mph2 km/h from ENE, gusts 2 mph3 km/h | 87% | 70% | 1 |
| Sun 10a | Partly sunny | 55°13° (likely 52°11° to 59°15°) | 55°13° | 0% | 1 mph2 km/h from ENE, gusts 2 mph4 km/h | 74% | 73% | 2 |
| Sun 11a | Partly sunny | 60°16° (likely 59°15° to 64°18°) | 60°16° | 0% | 2 mph3 km/h from S, gusts 2 mph4 km/h | 61% | 76% | 3 |
| Sun 12p | Cloudy | 66°19° (likely 65°18° to 67°19°) | 66°19° | 0% | 2 mph3 km/h from S, gusts 5 mph8 km/h | 54% | 81% | 4 |
| Sun 1p | Cloudy | 69°21° (likely 68°20° to 70°21°) | 69°21° | 0% | 2 mph3 km/h from S, gusts 6 mph9 km/h | 48% | 80% | 4 |
| Sun 2p | Cloudy | 72°22° (likely 70°21° to 72°22°) | 72°22° | 0% | 5 mph8 km/h from SSW, gusts 8 mph13 km/h | 43% | 84% | 4 |
| Sun 3p | Cloudy | 73°23° (likely 69°21° to 73°23°) | 73°23° | 0% | 5 mph8 km/h from SSW, gusts 10 mph16 km/h | 43% | 88% | 3 |
| Sun 4p | Cloudy | 71°22° (likely 67°19° to 71°22°) | 71°22° | 0% | 5 mph8 km/h from SSW, gusts 10 mph16 km/h | 43% | 90% | 2 |
| Sun 5p | Cloudy | 69°21° (likely 65°18° to 69°21°) | 69°21° | 0% | 3 mph5 km/h from SW, gusts 9 mph15 km/h | 48% | 93% | 1 |
| Sun 6p | Cloudy | 65°18° (likely 60°16° to 65°18°) | 65°18° | 0% | 3 mph5 km/h from SW, gusts 9 mph15 km/h | 58% | 95% | 0 |
| Sun 7p | Cloudy | 60°16° (likely 56°13° to 60°16°) | 60°16° | 0% | 3 mph5 km/h from SW, gusts 7 mph11 km/h | 70% | 93% | 0 |
| Sun 8p | Cloudy | 55°13° (likely 53°12° to 57°14°) | 55°13° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 81% | 92% | 0 |
| Sun 9p | Clear | 52°11° (likely 51°11° to 55°13°) | 52°11° | 0% | 0 mph0 km/h, gusts 7 mph11 km/h | 88% | 13% | 0 |
| Sun 10p | Clear | 51°11° (likely 49°9° to 53°12°) | 51°11° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 92% | 15% | 0 |
| Sun 11p | Clear | 50°10° (likely 48°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 94% | 21% | 0 |
| Mon 12a | Fog | 49°9° (likely 46°8° to 50°10°) | 49°9° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 96% | 31% | 0 |
| Mon 1a | Fog | 48°9° (likely 45°7° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 98% | 84% | 0 |
| Mon 2a | Fog | 47°8° (likely 44°7° to 49°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 99% | 87% | 0 |
| Mon 3a | Fog | 46°8° (likely 44°7° to 50°10°) | 46°8° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 80% | 0 |
| Mon 4a | Partly cloudy | 44°7° (likely 44°7° to 50°10°) | 44°7° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 60% | 0 |
| Mon 5a | Fog | 43°6° (likely 43°6° to 49°9°) | 43°6° | 0% | 1 mph2 km/h from WNW, gusts 3 mph4 km/h | 100% | 41% | 0 |
| Mon 6a | Fog | 42°6° (likely 42°6° to 49°9°) | 42°6° | 0% | 1 mph2 km/h from WNW, gusts 2 mph3 km/h | 100% | 35% | 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 76, with temperatures falling to around 71 in the afternoon. Southwest wind 1 to 6 mph.
Tonight: Patchy fog after 5am. Mostly clear. Low around 41, with temperatures rising to around 43 overnight. East southeast wind 0 to 3 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 76°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: Patchy fog between 7am and 9am. Mostly sunny. High near 73, with temperatures falling to around 69 in the afternoon. South southeast wind 0 to 5 mph.
Night: Areas of fog after 11pm. Partly cloudy, with a low around 41. West northwest wind 0 to 3 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: Areas of fog before 10am. Mostly sunny, with a high near 68. West northwest wind 1 to 8 mph.
Night: Patchy 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: Patchy fog before 10am. Mostly sunny, with a high near 68.
Night: Areas of fog after 11pm. Partly 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.
Official NWS forecast
Day: Areas of fog before 10am. Partly sunny, with a high near 67.
Night: Areas of fog after midnight. Mostly 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, then a slight chance of rain. Partly sunny, with a high near 65.
Night: A slight chance of rain before 10pm, then patchy fog and a slight chance of rain between 10pm 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.
Official NWS forecast
Day: A chance of rain and patchy fog. Partly sunny, with a high near 65.
Night: A chance of rain before 5am, then a chance of rain and patchy fog. Mostly cloudy, with a low around 40.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance
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
20% chance · 0.05 in1.3 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 76°, low 41°.
Dry, high 73°, low 41°, cooling off.
Dry, high 68°, low 40°, cooling off.
Mostly dry, highs 65–69°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 38.7 ft Sat 7 AM
Reading from Sat 5:45 AM · NWS gauge page
Forecast peak 23.1 ft Sat 7 AM
Reading from Sat 6 AM · NWS gauge page
Forecast peak 55.5 ft Sat 7 AM
Reading from Sat 5:30 AM · NWS gauge page
Forecast peak 1.8 ft Sat 7 AM
Reading from Sat 5:15 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 41% 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 4 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 41°F).
Today, 11:00 AM–6:00 PM
Good stretch to open the windows.
Today’s expected high is 2°1° warmer than typical.
Fulton weather by month: normals, records, snow and freeze dates
Sunrise 7:29 AM, sunset 6:20 PM.
Mostly clear 8–11 PM, but the moon is 99% lit and up.
Waxing gibbous
97% lit · growing