diff --git a/hyperstation/code/datums/weather/lithium_aurora.dm b/hyperstation/code/datums/weather/lithium_aurora.dm
new file mode 100644
index 000000000..a76ebc3f9
--- /dev/null
+++ b/hyperstation/code/datums/weather/lithium_aurora.dm
@@ -0,0 +1,116 @@
+/datum/weather/lithium_aurora
+	name = "Lithium Aurora"
+	desc = "A natural process of Layenia's atmospheric purification, in the lower levels of Layenia lithium and hydrogen combine until they form small specs of lithium peroxide. This peroxide rises to the clouds of Layenia, assisting in removing carbon dioxide from the atmosphere and in the process, creating a beautiful aurora that lasts for a few minutes."
+
+	telegraph_duration = 300
+	telegraph_message = "<span class='boldwarning'>Sivery particles float around the station...</span>"
+	telegraph_overlay = "lithium"
+
+	weather_message = null
+	weather_overlay = "lithium"
+	weather_duration_lower = 1800
+	weather_duration_upper = 2800
+
+	end_duration = 300
+	end_message = "<span class='boldannounce'>The particles slowly fade away...</span>"
+	end_overlay = "lithium"
+
+	area_type = /area/layenia
+	target_trait = ZTRAIT_STATION
+
+	immunity_type = "storm" // temp
+	probability = 2 //The chances of this happening are very low after all. We'll rarely see it, but it's worth it.
+	barometer_predictable = FALSE
+
+	var/activeFor = 0
+	var/list/aurora_colors = list("#80a8ff", "#a4e6fa", "#c1f0ff", "#e0f6ff", "#c1f0ff", "#a4e6fa")
+	var/aurora_progress = 0 //this cycles from 1 to 8, slowly changing colors from gentle green to gentle blue
+	var/list/applicable_areas = list()
+	var/ended = FALSE
+
+/datum/weather/lithium_aurora/telegraph()
+	. = ..()
+	ended = FALSE
+	priority_announce("[station_name()]: Lithium peroxide particles are rising in the atmosphere, a natural part of Layenia's atmospheric purification cycle. Their chemical reactions will cause slight shifts in the visible light spectrums. Kinaris Command has approved a short break for all employees to relax and observe this very rare event. Any staff who would like to view these lights for themselves may proceed to the nearest windows or go outside. We hope you enjoy the lights.",
+	sound = 'sound/misc/notice2.ogg',
+	sender_override = "Kinaris Meteorology Division")
+	for(var/V in GLOB.player_list)
+		var/mob/M = V
+		if((M.client.prefs.toggles & SOUND_MIDI) && is_station_level(M.z))
+			M.playsound_local(M, 'hyperstation/sound/ambience/urano.ogg', 40, FALSE, pressure_affected = FALSE)
+			/*
+			"Alex Productions - Urano" is under a Creative Commons license (CC BY 3.0).
+			https://www.youtube.com/channel/UCx0_M61F81Nfb-BRXE-SeVA
+			Music promoted by BreakingCopyright: https://youtu.be/JsBBvctEblE
+			*/
+	start_checking()
+	for(var/turf/S in applicable_areas)
+		S.set_light(6, 0.8, l_color = aurora_colors[1])
+	addtimer(CALLBACK(src, .proc/tick), 10) //Processing doesn't work, even when using custom SSprocessing. Welp, we'll settle for timers.
+
+/datum/weather/lithium_aurora/end()
+	. = ..()
+	ended = TRUE
+	priority_announce("The lithium aurora is now ending. Light conditions will slowly return to normal. When this has concluded, please return to your workplace and continue work as normal. Have a pleasant shift, [station_name()], and thank you for watching with us.",
+		sound = 'sound/misc/notice2.ogg',
+		sender_override = "Kinaris Meteorology Division")
+	for(var/S in applicable_areas)
+		fade_to_black(S)
+
+/datum/weather/lithium_aurora/weather_act(mob/living/L)
+	//L.adjust_bodytemperature(-rand(5,10)) //Nothing bad!
+
+/datum/weather/lithium_aurora/proc/start_checking()
+	var/list/turfs_to_check = list()
+	var/x = 1
+	var/y = 1
+	while(TRUE)
+		turfs_to_check += locate(x,y,2)	//If the station z-level ever gets changed, change this too. I couldn't find if there's an easy way to get it
+		x++
+		if(x > 255)
+			x = 0
+			y++
+		if(y > 255)
+			break
+	if(!turfs_to_check)
+		CRASH("Lithium aurora called, but there's no clouds!")
+	var/tlen = turfs_to_check.len
+	var/i = 0
+	while(i < tlen)
+		i++
+		var/turf/T = turfs_to_check[i]
+		if(!istype(T, /turf/open/chasm/cloud))
+			continue
+		if(i%2500 == 0)
+			sleep(1)	//try to spread the lag around a bit
+		var/sure = (!istype(get_step(T, NORTH)?.loc, /area/layenia)||\
+					!istype(get_step(T, NORTHEAST)?.loc, /area/layenia)||\
+					!istype(get_step(T, EAST)?.loc, /area/layenia)||\
+					!istype(get_step(T, SOUTHEAST)?.loc, /area/layenia)||\
+					!istype(get_step(T, SOUTH)?.loc, /area/layenia)||\
+					!istype(get_step(T, SOUTHWEST)?.loc, /area/layenia)||\
+					!istype(get_step(T, WEST)?.loc, /area/layenia)||\
+					!istype(get_step(T, NORTHWEST)?.loc, /area/layenia))		//Better than using range()
+		if(sure)
+			applicable_areas += T
+
+/datum/weather/lithium_aurora/proc/fade_to_black(turf/open/chasm/cloud/S)
+	set waitfor = FALSE
+	var/i = 0.8
+	while(i>0)
+		S.set_light(l_power=i)
+		sleep(10)
+		i -= 0.05	//16 seconds
+	S.set_light(initial(S.light_range), initial(S.light_power), initial(S.light_color))
+
+/datum/weather/lithium_aurora/proc/tick()
+	activeFor++
+	if(activeFor % 5 == 0)
+		aurora_progress++
+		if(aurora_progress > LAZYLEN(aurora_colors))
+			aurora_progress = 1
+		var/aurora_color = aurora_colors[aurora_progress]
+		for(var/turf/S in applicable_areas)
+			S.set_light(l_color = aurora_color)
+	if(!ended)
+		addtimer(CALLBACK(src, .proc/tick), 10)
diff --git a/hyperstation/sound/ambience/urano.ogg b/hyperstation/sound/ambience/urano.ogg
new file mode 100644
index 000000000..be23bfecf
Binary files /dev/null and b/hyperstation/sound/ambience/urano.ogg differ
diff --git a/icons/effects/weather_effects.dmi b/icons/effects/weather_effects.dmi
index 2f271d4a2..4040f4ed3 100644
Binary files a/icons/effects/weather_effects.dmi and b/icons/effects/weather_effects.dmi differ
diff --git a/tgstation.dme b/tgstation.dme
index 88bf87a88..eb95dc49e 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -3088,6 +3088,7 @@
 #include "hyperstation\code\datums\ruins\lavaland.dm"
 #include "hyperstation\code\datums\traits\good.dm"
 #include "hyperstation\code\datums\traits\neutral.dm"
+#include "hyperstation\code\datums\weather\lithium_aurora.dm"
 #include "hyperstation\code\datums\weather\oxygen_rain.dm"
 #include "hyperstation\code\game\machinery\lore_terminal.dm"
 #include "hyperstation\code\game\objects\railings.dm"