California Gov. Gavin Newsom will attend the Conference of the Parties (COP30) event in Brazil next week. The U.S. is not sending any representatives. @sfchronicle.com reporter @kurtisalexander.bsky.social with an update on where Newsom and California stand in the global climate change landscape.

“U.S. Transportation Secretary Sean Duffy is expected to order scheduled air traffic cut by 10% at 40 major airports starting Friday…”

Fast moving cold fronts typically limit big rain totals… distribution of top rain totals in the North Bay and Santa Cruz mountains mostly verifying, as are the low totals in some rain shadowed areas. 11/5/2025 #CAwx

Strong winds blow clouds past Sutro Tower as a storm moves through the Bay Area. 🎥: Lea Suzuki

💨We still have High Wind Warnings and Wind Advisories in effect through this afternoon. Here's some of the strongest winds we've seen so far. North Bay coast has been the windiest. #cawx https://x.com/NWSBayArea/status/1986088038800204275

Ugh, I'm soaking wet this morning. Do yourself a favor and stay home under a warm blanket.

Although the current atmospheric river will bring significant rain to northwest corner of California, coastal winds and “lee side” winds will be bigger impact. www.sfchronicle.com/weather-fore... For historical context on such AR winds globally, see www.nature.com/articles/nge...

A NOAA contract that supports earthquake monitoring in ‘breeding ground for tsunamis’ was recently cut. It could have impacts for the entire Pacific Ocean, including California.

Biggest winds since February expected in Bay Area tonight into Wednesday morning. Some of those gusts could be damaging. Full forecast:

Kentucky Gov. Andy Beshear released a statement: "Kentucky, we are aware of a reported plane crash near Louisville International Airport. First responders are onsite, and we will share more information as available. Please pray for the pilots, crew and everyone affected. We will share more soon."

Lake Tahoe, which is often sheltered from strong winds during storms, is included in a high wind warning for gusts up to 65 mph Wednesday. It’s just the second high wind warning there in the past three years. NWS forecasts mountain waves, which can carry winds from high elevations toward the lake.

Reminder that some National Weather Service offices in California are severely short staffed as the storm season begins. I recently detailed the latest situation for @sfchronicle.com: www.sfchronicle.com/weather/arti...

Northbound I-5 remains closed near Anderson (Shasta County) due to collision involving semi-trailer truck amid wet weather. CHP first reported closure at 8:41 a.m., according to Caltrans Quick Map #CAwx

AW YEAH PGE says 'yer power gonna go out. be ready'

‘We won’t let people travel’: Officials warn as SFO delays pile up and national air travel crisis deepens www.sfchronicle.com/travel/artic...

Bay Area weather: Here’s a timeline for when rain, wind will be strongest www.sfchronicle.com/weather-fore...

Tuesday will be the calm before the storm in the Bay Area. Strengthening winds in the evening will be the first impact of the looming storm.

#SPC issues Day 2 Marginal Convective Risk at Nov 4, 6:28z for EKA Link

Wednesday morning ferry ride (if they happen) will be VERY choppy. A gale watch is in effect for San Francisco Bay. Rob with an eloquent forecast update here:

🚨CSS holiday food drive🚨 Let's fill some shelves and help ensure people don't go hungry this holiday season. Please bring canned goods, boxed meals, and non perishable items and be entered to win some great prizes! Every item makes a difference for local families in need. No donation is too small

Seasonal models with a 180-degree turnaround for November in California. What at one point was looking like a dry month is now favored for above-normal precipitation across the northern half of the state, with a wetter signal emerging for Southern California by the middle of the month, too. #CAwx

California storm to bring strong winds, widespread rain to parts of state #CAwx www.sfchronicle.com/weather-fore...

Cool interactive piece by the Washington Post explains the science behind increased flooding events in a changing climate.

From beautiful weekend to a stormy start to Wednesday… it’s looking like a case of weather whiplash for the Bay Area ahead. Wind speeds could be strong, especially early Wednesday along with some heavy rain as the cold front passes through the region. Stay tuned to updates on @nbcbayarea 11/2/2025

NorCal dry stretch ends Monday PM as an atmospheric river-fueled storm makes landfall near Eureka. Light warm frontal rain could skirt North Bay on Tuesday but Wednesday will be the day for widespread precipitation and strongest winds of the season so far in Bay Area. A solid fall storm. #CAwx

San Francisco ranked as the second most ‘ideal’ climate in the country. Of course, it’s a subjective index. While rain, fog, sun and wind carry connotations, weather is a matter of preference. Some may enjoy storms more than others. Heat could be one person’s bane and another’s boon. #CAwx

One month into the government shutdown and federal scientists are working without pay.

“We’re going to be seeing a lot more Melissas in the future and we’re definitely not ready for it,” @drjeffmasters.bsky.social said.

A tranquil pattern through Halloween weekend is expected to set the stage for what should be a generally dry November, although one storm in the month could buck the trend. #CAwx

Humanity is on a path toward 'climate chaos,' scientists warn The burning of fossil fuels reached a new record last year, releasing even more greenhouse gases. @williamripple.bsky.social @michaelemann.bsky.social @petergleick.bsky.social www.latimes.com/environment/...

Adding a category 6 does nothing to address the scale's inability to capture the myriad, often compounding hazards delivered by a particular TC. Instead, it could inflate the scale such that life-shattering storms assigned lower categories would garner even less attention than they already do. [5/5]

The Copernicus Sentinel-2 polar-orbiting satellite made an extremely fortuitous pass over Hurricane Melissa right before it made landfall in Jamaica to provide these stunning images of one of the most powerful Atlantic hurricanes in history

Lowest pressures at landfall for Atlantic hurricanes: Melissa 2025: 892 mb Labor Day 1935: 892 mb Gilbert 1988: 900 mb Camille 1969: 900 mb Dean 2007: 905mb

#Melissa's landfall intensity of 185 mph/892 mb ties it with the Florida Key's Labor Day Hurricane of 1935 as the record minimum pressure of any TC making landfall *anywhere* the NATL basin. I feel for the residents of #Jamaica 😞 Zoomed in G19 visible meso loop courtesy of @cyclonicwx.bsky.social

The mercury is forecast to climb 5 to 15 degrees above normal the next couple of days as a high-pressure system builds across California.

Ah, yes, a humanitarian crisis is about to unfold in the Caribbean by one of the strongest storms in recorded history, but too many resources are fighting this problem!

National Weather Service offices in California are scaling back operations ahead of the winter storm season amid federal cuts. Some offices have a vacancy rate >50% and a mutual aid approach is forcing some meteorologists to issue warnings for counties beyond their region of expertise.

California condor range expanding into the Bay Area and Santa Cruz Mountains, further south into Santa Barbara County too. 🪶 www.mercurynews.com/2025/10/20/f...

The Trump administration has dispatched more than 100 federal agents to Coast Guard Base Alameda and they will begin to arrive Thursday, according to a source familiar with the operation.

Its official! Today, the US Corps Of Engineers is announcing that it signed into effect a Water Control Manual update for Lake Mendocino on the Russian River that implements FIRO* there! 1/7 www.sfchronicle.com/california/a... * Forecast-Informed Reservoir Operations

Silicon Valley startup admits its balloon may have struck United jet, forcing emergency landing www.sfchronicle.com/travel/artic...

Sharing the latest findings from the @wmo-global.bsky.social Greenhouse Gas Bulletin report: CO₂ levels have reached new highs. Our #CopernicusAtmosphere scientists @mparrington.bsky.social, A.Inness, E.Koffi, A. Agusti-Panareda and A.Visser contributed to this 21st ed. of the flagship report.

I had the pleasure of meeting Mike while I was a student at the University of Washington. I remember our conversation about the Hunga Tonga volcano eruption, he was so excited to include animations in e-version of his textbook, which, btw, is excellent. His essay is well worth your time.

Can't get enough of the rain, NorCal? It'll dry out for a bit, but the next stormy pattern looms in late October. #CAwx www.sfchronicle.com/weather-fore...

San Francisco is set for an extended stretch of dry weather after the first storm of the season soaked the region, but rain probably isn’t done with the Bay Area this month.

Well, the NWS forecast some "winter-like weather" in the eastern Sierra and surely delivered. Gorgeous in the range today! (Hope Valley, West Fork Carson River, 7000+ feet elevation) Not sure how long the snow will last but its brilliant today.

California rain totals: Map shows which areas got most drenched www.sfchronicle.com/weather/arti...

“How big of a difference the missing balloon data made, though, may never be known. The best way to determine that would be to run computer models with weather balloon data fed into them and without it, in what is known as a data denial experiment — impossible to do without the data itself.”

Recently, an upper-level system moved through the Pacific Northwest, bringing with it an early season winter storm that dumped mountain snow across the Cascades. This imagery from JPSS satellites compares the Cascades from a week ago to today.