Heavy Downpours and Coastal Advisories: A Soaker for Oakland this Sunday

Morning: Showers Kick Off the Day

Oakland residents waking up this Sunday, February 15, 2026, will find a grey and damp start to their day. Early morning conditions are dominated by scattered rain showers as a major storm system begins to move through Northern California. Temperatures in the early hours will hover around 50°F, requiring a warm layer for anyone heading out early. Winds are picking up from the south-southeast at approximately 10 to 15 mph, adding a chilly edge to the moisture-laden air. While the rainfall may start light, it serves as a precursor to the much more significant weather expected later in the day.

Afternoon: Steady Rain and Peak Temperatures

As we transition into the afternoon, the intermittent showers of the morning will evolve into a more consistent and steady rainfall. Meteorologists predict that the heaviest bands of rain will begin to settle over the East Bay during this window. Despite the overcast skies and precipitation, the temperature is expected to reach a high of 58°F to 59°F. The wind will also intensify slightly, with gusts between 10 and 20 mph coming from the south-southeast. Total daytime rainfall is anticipated to be around a quarter to a third of an inch, though localized heavy downpours could lead to ponding on city streets and low-lying areas.

Evening and Overnight: Potential for Heavy Rainfall

The wet weather is set to intensify as Sunday evening approaches. The forecast indicates a 100% chance of rain overnight, with the potential for heavy downpours that could bring nearly an inch of total accumulation by Monday morning. Temperatures will dip to a low of around 49°F. The winds will shift slightly to the east-southeast, calming to about 5 to 10 mph, but the primary concern will remain the volume of water falling in a relatively short period. Outdoor plans should be moved inside, as the combination of rain and potential visibility issues will make for difficult driving conditions across the Nimitz and MacArthur freeways.

Important Weather Advisories

Due to the incoming storm and tidal patterns, several alerts are currently in effect for the Oakland area:

• Coastal Flood Advisory: Issued by the National Weather Service, this advisory began at 7:00 AM this morning and is scheduled to remain in place until 3:00 PM Tuesday. High tides combined with the storm surge may cause minor flooding along the San Francisco Bay shoreline.
• Small Craft Advisory: Mariners should take caution as rougher waters are expected within the bay and near the Port of Oakland.
• Heavy Rain Notice: Residents in areas prone to drainage issues should ensure gutters are clear, as locally heavy rainfall is expected to persist through the night.