San Diego gets a brief taste of ordinary coastal weather Wednesday, with clouds giving way to sunshine and a high near 80. But a Coastal Flood Advisory remains in effect through 5 p.m., and an Extreme Heat Watch is set to take over the forecast Friday as temperatures climb into the 90s.
Minor flooding and coastal erosion are most likely during high tide Wednesday, when water levels are expected to reach about 6.9 to 7.1 feet between 11 a.m. and 1 p.m., according to the National Weather Service. Drivers near low-lying coastal roads should allow extra time, avoid barricades and never drive through water of unknown depth.
The heat threat is the major new wrinkle in the week-ahead outlook. While Hoodline previously reported the coastal flooding and incoming warmth, the new watch now covers San Diego County coastal areas and valleys from Friday morning through Wednesday evening.
Heat Builds Quickly After Friday
Thursday should reach about 84 degrees before Friday climbs to 90, followed by a forecast high near 93 Saturday. Sunday and Monday are expected to reach around 92, with Tuesday near 90, while overnight lows rise into the mid-70s and offer little relief.
Foggy Mornings Give Way To Hot Afternoons
Patchy fog could return late Thursday night and linger into Friday morning before clearing, leaving sunny skies for the afternoon. Winds will generally stay light to moderate, though gusts of 20 to 30 mph are possible Friday along some coastal mountain slopes and nearby inland valleys.
Heat Safety Becomes More Important This Weekend
The coast may stay near 90 degrees at the peak of the heat wave, while inland valleys could reach the upper 90s to 108 degrees. The weather service recommends drinking plenty of fluids, staying in air conditioning or shade when possible, limiting time in the sun and checking on relatives and neighbors during the prolonged heat.
