For those weary of the summer sear, the National Weather Service in Sacramento is forecasting a brief respite with below normal temperatures today, before the thermostat climbs again. The cooler conditions are expected to give way to a "gradual warming trend beginning Wednesday," confirmed by the latest release from the NWS. Although the Delta may experience breezy late day winds, the upside is the continued onshore flow that's been keeping the swelter at bay.
Concerns about smoke and haze persist, especially for the northern Sacramento Valley and adjacent foothills, which are bearing the brunt of "smoke and haze from California fires." This, as detailed by the NWS, will continue to be a factor in the days ahead. As we haul into the midweek hump, there's talk of a rising HeatRisk, with "Minor through Wednesday," and then we look at "widespread Moderate HeatRisk" making a comeback for Thursday and Friday, leaving some with hope for nightfall's cooler temps to provide a little natural relief.
Rising temperatures won't be the week's only highlight. The NWS paints a picture of Sierra thunderstorms entering the chat by Friday. "Ensemble precipitable water anomalies show modest moisture content (150-180%) along the Sierra crest," shares the NWS, hinting at a cocktail of conditions right for thunderous developments. With "around a 10-15% probability of thunderstorms Friday afternoon and evening," mountain residents and visitors should brace for nature's light show.
Looking past the workweek, the weekend doesn't intend to break the mold, offering "much of the same weather wise," including isolated chances of thunderstorms in the northern Sierra. And the Valley? It seems destined for a scorching rendezvous with the century mark, as the NWS projects "a 45-95% chance of exceeding 100 degrees" for Saturday's cauldron. Carrying over into next week, temperatures aspire to maintain their triple-digit tenure as "areas of Major HeatRisk in the Foothills" start to crop up by Tuesday, indicating no swift end to the sizzle.
As for navigating the skies, aviation enthusiasts or traveling residents can breathe easy. "VFR conditions next 24 hours except local MVFR in haze/smoke vicinity wildfires," explains the NWS, signaling mostly clear flying conditions, apart from areas grappling with wildfire smoke. Motorists and aviators in the Delta should also note "local southwest surface wind gusts 20-30 kts vicinity west Delta," a detail surely worth considering when planning routes or looking to the sky.
