Today’s forecast for San Diego calls for continued unsettled weather, following a significant rainfall event on Tuesday. While this morning may see scattered showers and mostly cloudy skies, the main event is expected to arrive after midnight Thursday. An atmospheric river originating from the Pacific Northwest will bring moderate to heavy rainfall, potentially impacting the Thursday morning commute.
San Diego Weather Forecast: A Multi-Day Event
Tuesday’s rainfall totals approached an inch in several areas, marking the single rainiest day in nearly a year for San Diego International Airport. However, this is just the beginning of a multi-day weather system. The second round, a powerful atmospheric river, is poised to deliver heavier precipitation.
Thursday’s Forecast: Heavy Rain and Mountain Snow
The heaviest rainfall is anticipated between 3 a.m. and 9 a.m. Thursday, with moderate to heavy showers possible throughout the day. Snow levels are expected to drop to 3,500-4,000 feet Thursday morning, potentially affecting mountain communities.
A Flood Watch is in effect for all of San Diego County except the deserts. Snow levels could fall as low as 3,000 feet by late Thursday into Friday morning, potentially bringing snow to Julian, Pine Valley, and even portions of Interstate 8. A Winter Weather Watch is in effect from Thursday morning through Friday noon. Additionally, a Wind Advisory is in effect for the deserts from Wednesday night through Friday morning.
Friday and Weekend Outlook
Friday may see a few light showers, but the majority of the storm system will have moved out. Rainfall accumulation from this system could reach 0.20 inches across the county. The weekend forecast looks mostly dry and slightly warmer.
Rainfall Totals and Long-Term Outlook
Total rainfall accumulation from Tuesday through Saturday is estimated to be between one and two inches for San Diego. While this won’t completely replenish the seasonal rainfall deficit, it’s a positive start to March.
Detailed Forecast for Wednesday
- Coast: Drier conditions with a chance of isolated showers. Highs in the low 60s.
- Valleys: Drier conditions with a chance of isolated showers. Highs in the low 60s.
- Mountains: Drier conditions with a chance of isolated showers. Highs around 50.
- Deserts: Mostly sunny with highs around 70.
Stay updated with the NBC 7 First Alert Weather team for the latest information on the timing and intensity of these upcoming storms. This forecast is subject to change as details are refined.
