SAN FRANCISCO BAY AREA – After a stretch of weirdly hot, bone-dry weather, drought worries are creeping back into the Bay Area — even though the rainy season is not quite over yet.
In downtown San Francisco, the National Weather Service reported just 0.06 inches of rain for March as of March 26, compared with a normal 2.72 inches for the month.
Forecasters do expect some rain starting around March 31, but officials and climate experts say the bigger concern is what this dry, hot finish to winter may mean for spring and summer water supplies. (National Weather Service)
That is why federal forecasters are sounding unusually direct warnings. NOAA’s Climate Prediction Center said that, because of low snowpack, below-normal precipitation since October, record heat in mid-to-late March, and an April-May-June outlook favoring above-normal temperatures and below-normal precipitation, confidence is high for drought persistence and development across the West.
The agency said drought development could begin as early as April in areas already marked as abnormally dry. (Climate Prediction Center)
For Bay Area residents, the snowpack issue may matter even more than the dry skies over San Francisco itself. California’s Department of Water Resources says mountain snowpack typically supplies about 30% of the state’s freshwater, but this year’s heat has been melting that frozen reserve far too early.
DWR warned in mid-March that if the trend continued, California could end up with the second-lowest April 1 snowpack in recorded state history, and said the normal peak likely arrived in mid-February instead of early spring. The agency also said snowpack had already begun shrinking by about 1% per day. (Water California)
That early melt creates a double problem. First, less snow is left to slowly feed rivers and reservoirs later in the year, when California usually depends on it most. Second, some reservoirs cannot simply capture all that early runoff, because flood-control rules require agencies to keep room open in case late storms arrive.
DWR says this means rivers could run lower than usual later this summer, while water managers have to be conservative about how much supply they expect to have available.
The Bay Area is not in full-blown drought emergency mode right now, and that distinction matters. Drought.gov says 23.8% of California is currently classified as “abnormally dry,” while none of the state is yet listed in the formal drought categories D1 through D4.
In other words, the warning signs are showing up before the official map turns darker. At the same time, reporting on the federal outlook indicates that parts of Northern California, including northern Bay Area counties such as Napa, Sonoma, and Solano, could slide back into drought conditions by late June if the pattern holds. (Drought.gov)
There is, at least, a little short-term relief in sight. The National Weather Service’s Bay Area office says rain is likely from Tuesday, March 31 through Thursday, April 2, with around 0.5 to 1 inch possible in places like San Francisco, Oakland, and Santa Rosa, lighter totals inland, and up to about 1.5 inches in some coastal ranges. That rain should help, but it is arriving late, after weeks of dryness and after the snowpack has already taken major damage. (National Weather Service)
So yes, experts are warning that the Bay Area could be heading toward another drought — not because one dry month automatically guarantees it, but because this dry month came with record heat, rapid snow loss, and forecasts that still lean warm and dry into spring. The clearest takeaway is that the Bay Area is not yet in crisis, but the weather is starting to look uncomfortably familiar. (Climate Prediction Center)
