San Francisco residents and visitors alike are being cautioned to prepare for an influx of heat as the city braces for temperatures higher than usual. According to the National Weather Service (NWS) San Francisco Bay Area, the predicted warmth escalates a widespread moderate HeatRisk and accentuates near critical fire weather conditions through Thursday. The advisory stretches from the current day into the evening, prompting individuals especially in the Mission District, to practice caution and heat safety protocols.
Building high pressure is the culprit behind the climbing mercury, which will cause temperatures to be 10-20 degrees above normal. The National Weather Service states, "Maximum temperatures will be 10-20 degrees above normal with widespread moderate HeatRisk." Furthermore, interior sections like Monterey and San Benito Counties might see extended advisories into Friday night. San Francisco's downtown area isn't immune to the heat, expecting highs in the 80s, according to a report by the National Weather Service.
The implications for fire risk are just as dire, with the current conditions creating a near-perfect storm for potential wildfires. With triple-digit heat and humidity plummeting to a range of 10-20%, certain interior areas are already experiencing fire weather that teeter on critical. As informed by the National Weather Service San Francisco Bay Area, "Many interior portions of the district saw triple digit heat combined with relative humidity in the 10-20% range." However, for the red flag threshold to be crossed, significantly stronger winds would be necessary.
Concerns are not only terrestrial but also extend over the waters of the Bay Area. Calm maritime conditions are to persist, yet mariners face rough seas with significant wave heights of 5 to 7 feet. As outlined in the marine section of the National Weather Service forecast, "Relatively calm over the waters as the northerly winds have diminished." Sea conditions are expected to improve gradually as we head towards the weekend.
