Lan Ma

Energy and climate specialist @AirResources. Tree ring and weather nerd. Views my own.

[Lan Ma @LanMisty]

December commute has gone from mistily wet to slipperily wet.

[Lan Ma @LanMisty]

Downtown Sacramento still displaying fall colors in full force come the beginning of winter
#solstice

[Lan Ma @LanMisty]

Chiming in to the #aurora colors on the internet tonight, from Rocklin, CA. My first of seeing the dancing green!

[UC Berkeley @UCBerkeley]

John Clarke, UC Berkeley emeritus professor, awarded the 2025 #NobelPrize in #Physics. The Nobel Prize committee honored Clarke "for the discovery of macroscopic quantum mechanical tunneling and energy quantization in an electric circuit."

https://t.co/OXPeBSGuiv

[NWS Norman @NWSNorman]

No, the radar is not detecting rain this morning, this is likely Monarch butterflies waking up from an overnight nap. I'm certainly not a lepidopterist, but Oklahoma is one of the fly over states used by the Monarch to reach northern Mexico for the winter. #okwx #texomawx

[Lan Ma @LanMisty]

Temperature was a t-shirt-and-shorts 77F at 4:30pm, then plummeted to 46F by 6:30pm with a wind chill of 36F.
Exciting couple of hours of stopover for me, but I hope all the concert (RedWest) goers and football (ASU vs. Utah) fans were prepared!

[Lan Ma @LanMisty]

Arrived at Salt Lake City late afternoon today, partly sunny but with all the harbingers of a storm coming. Within 2 hours, the cold front swept through with strong gusts, lightning, and torrential downpours. #utwx

[Lan Ma @LanMisty]

Dendrochronologist check-in at Lowman, ID. This tree has beautiful complacent rings, which date back to 1732 (year when George Washington was born) and through 2016 when the Pioneer Fire in Boise National Forest burned 188k acres.

[Lan Ma @LanMisty]

What a surreal afterglow tonight from @CityofRocklin: brightly lit virga on the horizon against the dark mammatus clouds overhead, then lightening to the north shortly after! #CAwx @NWSSacramento @MarkFinanWx @KCRAHeather

[Lan Ma @LanMisty]

…and looking NE

[Lan Ma @LanMisty]

At the confluence of these outflow boundaries … looking SW

[NWS Sacramento @NWSSacramento]

Here's the latest info on today's wind damage near Carmichael:
-No injuries reported
-Damage Type: Downburst/Straight Line Winds

The official press release and graphic with map can be found below.
Link to Public Information Statement(PNS): https://t.co/r72YCJeu44

#CAwx

[Lan Ma @LanMisty]

What a delightful treat to see virga in July: (1) last night at sunset, Roseville actually saw a few raindrops on the ground; (2) this morning’s sunrise lighting at just the right angle, creating a nice visual.

[Lan Ma @LanMisty]

Smoke from #BonanzaFire as viewed from downtown Sacramento.

[Lan Ma @LanMisty]

Trinity Lake at 90% full. 😍

[Lan Ma @LanMisty]

@MarkFinanWx @YouTube Hi Mark! So great to see you at Action Camera on Saturday! I enjoy the daily weather discussions and would love to see more weather photography adventures too!

[Lan Ma @LanMisty]

Incredible lighting during a late afternoon stroll at Prairie Creek Redwoods State Park. Equally spectacular to the tall, solemn giants are the ferns, sorrels, and trilliums beaming in the understory.

[Zeke Hausfather @hausfath]

Introducing the "tree ring plot": a new way to visualize global surface temperatures. Each ring is a year, and each colored cell represents a day in global average temperatures (compared to a 1850-1900 preindustrial baseline).

[NWS Bay Area 🌉 @NWSBayArea]

⚠️🧊Frost Advisory in effect from 1 AM to 9 AM Friday morning in the interior Bay Area and across the Central Coast for hazardous temperatures in the low to mid 30s. Protect people, plants, pets and pipes! #CAwx

[Oregon State Fire Marshal @OSFM]

We want to clear up any misinformation regarding our deployment to Southern California. Please see our statement below.