A category for prompts that change seasonally, roughly every 3 months (though there may be exceptions), these prompts almost always end on the last day of a month at 11:59pm Pacific Standard Time (PST). Be sure to read each prompt closely for any additional info as the number of months and submissions allowed can vary from prompt to prompt.
[S-1] Prompts: Usually run January through March every year.
[S-2] Prompts: Usually run April through June every year.
[S-3] Prompts: Usually run July through September every year.
[S-4] Prompts: Usually run October through December every year.