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Mark Grossi Profile
Mark Grossi

@markgrossi

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San Joaquin Valley
Joined December 2008
Don't wanna be here? Send us removal request.
@monocotourism
Mono County Tourism
18 hours
Conditions are 🤌🤌🤌 at June Mountain right now! Perfectly groomed, spectacular Sierra views, and a relaxed, family-friendly vibe (kids 12 & under ski free!) ❄️☀️ 📸1.19.26 Drake family 
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@RobMayeda
Rob Mayeda
20 hours
Nearly ran out of night but Modoc County and along the CA/OR border we got a show via @ALERTCalifornia Blue Mtn, Sugar Hill, Likely Mtn cams from 3am-5:30am PST @TamithaSkov @SNHWx @RyanJFrench @nbcbayarea 1/20/2026
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@ALERTCalifornia
ALERTCalifornia
4 days
Spotted this little American kestrel soaking up the sunrise above the fog on Mt. Rincon earlier this week. Kestrels are one of the most commonly seen birds of prey on the ALERTCalifornia network.
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@NWSHanford
NWS Hanford
4 days
This @NOAASatellites view of central California shows the extent of dense fog over the area this evening. The sudden transition from red to pink is showing sunset, with the brighter colors in the image showing the expanse of the fog. #CAwx
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@markgrossi
Mark Grossi
5 days
People don't always know how bad the air is. Your lungs do. The microscopic particles pass deep into your lungs, pass the blood-gas barrier and lodge in your organs -- including your heart. Early mortality due to this pollution is a big deal in this valley.
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@markgrossi
Mark Grossi
5 days
Dirty-air cringe time: My granddaughter's soccer game was just called off at Bullard High School in Fresno. Stay inside if you can. And, please, don't burn wood in an open fireplace tonight. https://t.co/uLGPW7150k
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@CHP_Monterey
CHP Monterey
7 days
🎉 SR-1 is now open 🎉 After being closed for 3 years, SR-1 south of Big Sur is now open.
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@markgrossi
Mark Grossi
6 days
You can see where the dirty air is the worst around the Fresno-Clovis area. Tiny specks of dust, chemicals and soot are building in the air every day now. PM-2.5 is the most deadly air pollutant being regulated. Keep your eye on this here: https://t.co/7wpCQwRhuA
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@markgrossi
Mark Grossi
6 days
The last 12 months of air quality in the central San Joaquin Valley have been better than in the past. Not so much now ... stable weather and fog are creating a PM-2.5 problem for all of us. https://t.co/QbEM2P9IL5
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@markgrossi
Mark Grossi
7 days
Maybe another hat for my collection ...
@UCB_CSSL
UC Berkeley Central Sierra Snow Lab
8 days
❄️ Wear Your Support for Snow Science! ❄️ We’re excited to launch our apparel fundraiser! Every purchase supports research, education, and operations at our historic field station. Your support makes a real impact. Get it here 👇 https://t.co/GglgLWawHJ
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@Weather_West
Dr. Daniel Swain
7 days
Well, it's now official (per NOAA): Dec (and Nov-Dec) 2025 were the warmest such periods on record for Western U.S. (and also for most individual Western states). It has been an extraordinarily sustained period of winter warmth, and this eerily balmy winter continues into Jan.
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@ByIanJames
Ian James
8 days
For years, the water table has been dropping beneath thousands of acres of Arizona farmland where a Saudi dairy company has been allowed to pump unlimited amounts of groundwater to grow hay. Now, the state is finally imposing limits. https://t.co/0tTQ07rBtN @KaylaBartkowski
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latimes.com
Arizona's governor says the state will start limiting groundwater pumping in an area where a Saudi farm grows hay and aquifer levels are dropping.
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@CollinGrossWx
Collin Gross
8 days
For the first time in 25 years, all of California is completely drought free! Over the past 90 days, precipitation has been up to 600% of normal in spots. The Sierra Nevada, which accounts for ~30% of the state’s water supply, has received several hundred inches of snow. #CAwx
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@markgrossi
Mark Grossi
9 days
Stop considering lives saved by limiting air pollution? That hits hard in the San Joaquin Valley, which is still among worst air basins in the country. Explore this gift article from The New York Times. You can read it for free without a subscription.
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nytimes.com
In a reversal, the agency plans to calculate only the cost to industry when setting pollution limits, and not the monetary value of saving human lives, documents show.
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@ggweather
Jan Null
9 days
When the incoming tide meets the outflow from Cañada Verde Creek and is lit up by another spectacular January sunset. 1/11/2026
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@ChpFresno
CHP Fresno
9 days
FINAL UPDATE AS OF 1:30 am All lanes of SR99 are open through Fresno Safe travels @CHP_HQ
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@US_Stormwatch
Colin McCarthy
13 days
California state reservoir levels are now at 130% of normal, holding 7 trillion gallons of water. Remarkable.
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