Stormy

Updated on Saturday, February 19, 2022

Stormy

Clouds develop and a storm sweeps in looking west over the Pacific from San Francisco.

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(Published to the Fediverse as: Stormy #timelapse #sanfrancisco #storm #video Time lapse of clouds developing and a storm sweeping in over the Sunset District in San Francisco, California. )

San Francisco New Year's Eve Timelapse 2020

Updated on Saturday, February 19, 2022

San Francisco New Year's Eve Timelapse 2020

A timelapse of San Francisco on New Year's Eve 2020:

Shot from Treasure Island, Corona Heights Park. Fort Baker and near Battery 129 in the Marin Headlands. Each sequence was transformed with a style transfer neural network (full details).

(Previously: San Francisco New Year's Eve Timelapse)

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(Published to the Fediverse as: San Francisco New Year's Eve Timelapse 2020 #timelapse #sanfrancisco #video San Francisco New Year's Eve Timelapse 2020 (style transfer neural network version). )

Merced

Updated on Saturday, May 8, 2021

Merced

Merced

Merced

Merced

Lake Merced in San Francisco (Previously: Lake Merced).

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(Published to the Fediverse as: Merced #photo #lakemerced #sanfrancisco Photos from Lake Merced in San Francisco, California. )

I Voted!

I Voted!

This is the first time I have voted by mail. In San Francisco there are clear instructions, a postage paid reply envelope and no need to get your ballot notarized or witnessed or other painful admin. The only real dilemma is the I Voted! sticker. When voting in person you just slap it on and wear it for the rest of the day. But when is the appropriate time for a postal vote? The instructions say:

"Show other San Franciscans you've voted to help encourage them to vote too!"

I get that, but it doesn't really speak to timing.

Is it a November 3rd thing to help with a final turnout push? When you actually fill it out? When you get round to dropping it in a mailbox?

Actually it's even more complex because there is a fancy ballot tracking system. So I get SMS notifications for when USPS has picked up the ballot, when San Francisco County has received it and finally when the ballot is accepted.

I'm just going to wear it today.

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(Published to the Fediverse as: I Voted! #politics #sanfrancisco #election If you vote by mail you still get an I Voted sticker but the etiquette on when to wear it is far from clear. )

San Francisco November 2020 Ballot Measures

SF 2020

I don't like to vote if I can't string together a rationale that I'm willing to post on my blog, so here are my recommendations for the San Francisco November 2020 ballot measures. It's been a tough year for the city. My neighbors are moving somewhere cheaper and less smoky, I see more houses on the market then usual as I walk around. It's hard to know what the next year will bring and to what extent tech jobs will end up shifting out of the bay area as the giants are forced to match work from home policies and smaller companies follow suit. What's clear to me is that we need to stimulate recovery and stop the city from becoming a worse place to live. And beyond that my ultimate dream of just throwing the politicians out if they're doing a lousy job rather than slogging through ballot measures for them. Until that day, here we go:

A: Health and Homelessness, Parks, and Streets Bond

Yes. The problem with homelessness is only getting worse and the construction will create jobs.

B: Department of Sanitation and Streets, Sanitation and Streets Commission, and Public Works Commission

Yes. The streets are a mess, so anything that shakes up the current system seems like it's worth a try.

C: Removing Citizenship Requirements for Members of City Bodies

Yes. Given the huge number of non-citizens paying taxes and otherwise contributing to the city it makes sense to allow them to participate in civic life. I don't support allowing non-citizens to vote but have no objection to them serving on a commission or other city body.

D: Sheriff Oversight

Yes. I really struggle with American policing. We have SF park rangers, community college police, university police, SFPD, sheriffs, highway patrol and other state police. That's without even starting to think about the various federal TLAs and transportation related agencies. Maybe before defunding the police we should first just spend a few years merging most of them and saving on administrative and uniform design costs? Having said all that I find it very hard to vote against more oversight for a department mainly concerned with running jails that organizes fight clubs at those jails. FFS.

E: Police Staffing

Yes. Doesn't seem to make sense to have a specific number of police officers as a requirement.

F: Business Tax Overhaul

Yes. I've never been in love with the payroll tax and moving to gross receipts with a higher exemption helps small business and startups. Seems like a good trade off.

G: Youth Voting in Local Elections

No. 18 is somewhat arbitrary but it's the point at which you take on adult rights and responsibilities.

H: Neighborhood Commercial Districts and City Permitting

Yes. Makes it faster and easier to permit new businesses and sadly we're going to need a lot of that as we recover.

I: Real Estate Transfer Tax

Yes. We need the revenue even if it is uncertain.

J:  Parcel Tax for San Francisco Unified School District

Yes. More funding for SFUSD. I voted for this before and it's on the ballot again as only a 50% requirement in 2018 instead of a 2/3rds majority.

K: Affordable Housing Authorization

Yes. A step towards creating more affordable housing.

L: Business Tax Based on Comparison of Top Executive's Pay to Employees' Pay

No. I think this is up to each company. Regulate the floor not the ceiling.

RR: Caltrain Sales Tax

Yes. I don't ride Caltrain often but I love it. My dream is coming back from a meeting on the peninsula in a comfortable top deck seat with a couple of cheap canned Gin and Tonics. We need more public transportation and we need it more than ever.

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(Published to the Fediverse as: San Francisco November 2020 Ballot Measures #politics #sanfrancisco #propositions #election Official ITHCWY voter guide to the San Francisco November 2020 Ballot Measures )

Cause and Effect, or Strange Skies over San Francisco

Updated on Saturday, February 19, 2022

Cause and Effect, or Strange Skies over San Francisco

A timelapse combining the mid-August storm and the 'day without a sunrise' on September 9, 2020 in San Francisco (lightning from the storm contributed to the wildfires that blocked the sun).

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(Published to the Fediverse as: Cause and Effect, or Strange Skies over San Francisco #timelapse #sanfrancisco #video #smoke #storm Time lapse of the day without a sunrise in San Francisco and the storm that caused the fires that blocked the sun. )

San Francisco PM2.5

Updated on Saturday, November 18, 2023

This doesn't work any more as Purple is charging for their API. Sorry.

San Francisco PM2.5

This post is updated hourly with a PM2.5 (2.5 micrometer or smaller particulate matter) map of San Francisco.

The video below shows the past 48 hours at six frames per second.

 

The PM2.5 data comes from the Purple Air API. The map uses one hour average readings from outdoor sensors and interpolates each point in San Francisco based on the inverse of the distance to the four closest sensors. The color scale is green to yellow (0-50), yellow to orange (50-100), orange to red (100-150) and red to purple (150-200+). San Francisco is plotted using elevation contours from DataSF.

Updated 2022-06-11 12:28:

The map is currently broken. The URL I use to download sensor data started returning a 500 error code at the end of may (Error: Server Error / The server encountered an error and could not complete your request. Please try again in 30 seconds.). This seemed like something Purple would need to fix. On closer inspection the error occurs after a redirect to https://purpleair-over-quota-2.appspot.com/ which sounds like too many requests (a 4xx error surely). With even more digging it turns out the download link is no longer supported (410 maybe then?) and so I'll need to migrate to the REST API to get this working again. I'm currently trying to get an API key and will get this fixed as soon as I can.

Updated 2022-06-13 17:28:

Purple Air were kind enough to issue me with an API key so the map is back to updating hourly.

Updated 2023-11-08 00:26:

And it's broken again. Purple have decided to start charging for their API. This is a shame, and I don't think I can pay for this just to keep this post running. I'm going to try moving to the AirNow system for some use cases, but it's not going to work for a detailed map of San Francisco as there is only one official sensor here.

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ISS over San Francisco

International Space Station over San Francisco, California

The International Space Station passes over San Francisco (first crew bearing Dragon capsule attached). 14 stacked two second exposures.

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(Published to the Fediverse as: ISS over San Francisco #photo #iss #sanfrancisco 14 stacked two second exposures of the International Space Station (ISS) passing over San Francisco, California. )

Coronavirus Hikes: May 2020

Coronavirus Hikes: May 2020

Coronavirus Hikes: May 2020

37.2 unique miles in May. Photo is the fog shadow behind Grand View Park.

Hike starts at: 37.741726, -122.471298. View in Google Earth.

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(Hike Map)

(Published to the Fediverse as: Coronavirus Hikes: May 2020 #hike #sanfrancisco #coronavirus #map Pandemic lockdown hikes around San Francisco for May 2020. )

San Francisco Stars

Updated on Saturday, February 19, 2022

San Francisco Stars

Unusually good night sky conditions in San Francisco recently. Here's a video of several timelapses shot over the last couple of months. The sequences are: (super) moonrise, no Lyrids over Sutro Tower, Ursa Major rotating around Polaris, Orion setting, moonset.

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(Published to the Fediverse as: San Francisco Stars #timelapse #stars #sanfrancisco #sutrotower #video Time lapse of stars over San Francisco (including moonrise, Orion setting and Ursa Major rotating around Polaris). )