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Greg Porter

@gporterwx.bsky.social

Senior newsroom meteorologist. Lover of snowstorms and hurricanes. And kitties πŸˆβ€β¬›

1,676 Followers  |  1,248 Following  |  560 Posts  |  Joined: 04.09.2024  |  1.6574

Latest posts by gporterwx.bsky.social on Bluesky

"The Sacramento office of the National Weather Service issued nine dense fog advisories in November, the most it has issued in a month this early in the wet season since at least 2005."

The typically sun bathed Central Valley is stuck under a perpetual fog layer.

02.12.2025 23:59 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0

He’s so good. I can’t believe it. Proudly rocking my #10

02.12.2025 08:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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This part of California just had its rainiest November in 115 years The driest place on Earth just had its wettest November on record.

Death Valley was wet last month!

www.sfchronicle.com/weather/arti...

01.12.2025 18:43 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Ah yes. The good ole' interior snow and coastal rain scenario for Boston. I used to very much dislike this outcome.

30.11.2025 22:42 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

This was fun to write! But also one of the more complex topics that I’ve covered!

19.11.2025 20:16 β€” πŸ‘ 9    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

Scotland!!!!! On the World Cup!

18.11.2025 21:51 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Lets go Scotland! One win please!!!🏴󠁧󠁒󠁳󠁣󠁴󠁿

18.11.2025 19:47 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Secondary low! Or a mesoscale low located over the North Bay is pulling in some heavy rain showers for SF right now.

17.11.2025 18:52 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I was just thinking the same thing!! You know what, I should just buy one and register it as a COOP site

17.11.2025 17:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The complexities of sub-seasonal forecasting and seasonal forecasting are even more extreme in a warming world. That's especially been the case over the last decade or so.

Curious to know what others think when they hear the terms El Nino or La Nina?

16.11.2025 20:33 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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California’s rule book on El NiΓ±o and La NiΓ±a is broken La NiΓ±a is back, but week-to-week jet-stream chaos really decide whether California floods or stays dry.

I've been trying to write this story for months. I've had a sneaking suspicion that the public perception of what El Nino and La Nina means for weather outcomes is not aligned with the truth.
www.sfchronicle.com/weather/arti...

16.11.2025 20:26 β€” πŸ‘ 45    πŸ” 9    πŸ’¬ 3    πŸ“Œ 0

Some pop up storms on the Peninsula today!

14.11.2025 21:25 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Can you spot the atmospheric river? The intensity of the low pressure system off the PNW has oriented the AR in a north/south direction over California. Keeps the party going for awhile in SF and Sacramento!

13.11.2025 21:54 β€” πŸ‘ 10    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Still raining in the Bay Area. Complex storm system meets atmospheric river

13.11.2025 21:44 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Read more >> https://bit.ly/3JINd53

13.11.2025 19:29 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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High wind warning for San Francisco from 10pm tonight through 10am Thursday

12.11.2025 15:50 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Atmospheric river to hit California with heavy rain, strong winds. Here’s a timeline of the storm A fast-moving storm driven by an atmospheric river will sweep down the California coast, bringing a quick burst of heavy rain, strong winds and snow in the Sierra Nevada.

Dreary out this morning in the Bay Area. Soon it will be wet and windy. The storm details and timeline

www.sfchronicle.com/weather-fore...

12.11.2025 15:38 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Siskiyou county is putting on a show right now!

12.11.2025 03:16 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The Bay Area will have a few hours of clear(ish) skies! This is the modeled cloud cover at 9pm. White is overcast, blut is clear. Clouds will fill in everywhere overnight, so give it a shot now!

www.sfchronicle.com/california/a...

12.11.2025 03:15 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

Some temps around the Bay today

SF- 77 (highest Nov temp since 2020)
Oak - 82 (first back to back 82 degree days in Nov since 1991)
Livermore - 82 (daily record tied)
San Jose - 80 (first back to back 80 degree days in Nov since 2012)

11.11.2025 01:14 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Close to two feet for Mammouth!

10.11.2025 17:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Time to open the resorts in Tahoe? This weeks storm is trending colder. Looks like a good 10 to 15 inches for most resorts and 3 to 6 inches at lake level by Friday.

10.11.2025 17:40 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Pats!! 8-2

09.11.2025 21:07 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This conversation is both equal parts fascinating and confusing!

31.10.2025 02:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@andreatweather.bsky.social

30.10.2025 23:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Excellent story from Andrea, but my mind naturally wanders to an unanswered question. @bmcnoldy.bsky.social's OHC charts show October 2023 to 2025 with historically high levels. Why?

30.10.2025 23:14 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Hurricane Melissa nears landfall, putting Jamaica at risk of a generational disaster The Category 5 storm is expected to cause β€œtotal structural failure” in parts of the island and unleash up to 40 inches of rain.

I've missed writing about hurricanes, but this was not a fun strom to write about. Devastation awaits Jamaica and Cuba.
www.sfchronicle.com/weather/arti...

27.10.2025 22:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
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Also, Hurricane Melissa is quite a thing to look at. Beautiful and terrifying. One recent measurement recorded sustained winds of 180 mph around the eye. This will be a historic storm for Jamaica and not in a good way.

27.10.2025 16:33 β€” πŸ‘ 21    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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Forecast:

"San Francisco: Monday should start off with sunshine and clear skies across the city, a nice reprieve from the overcast skies this weekend."

Reality:

You win again San Francisco

27.10.2025 16:20 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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California weather offices brace for storms as short-staffing fears grow The National Weather Service, grappling with staffing shortages, is cutting back on some forecasts in California. State officials fear flood forecasts could be impacted.

β€œWe do our jobs very well, despite the fact I’m not getting a paycheck right now.”

The NWS and other NOAA departments are reaching a breaking point.

@edwardsanthonyb.bsky.social with the story.

www.sfchronicle.com/weather/arti...

27.10.2025 15:41 β€” πŸ‘ 127    πŸ” 47    πŸ’¬ 0    πŸ“Œ 3

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