How do you make it sown?
I cant find a weather entity in the NS FGD

Weather effects have been coded into the mod right? yeh? no?

If they have does any NS Developer want to kindly post up the FGD code for the entity?

theres no "code"

u use a env_beam
and info_target

info_target where the model (snow) should start
and and other info_target where it should end

change the name of info_target to like "snow 1 and snow 2"
and in env_beam put start enite to snow1
and end entite to snow2

and find the right spirit in the env_beam "spirit name"
tho u will have to make 1 of theses sets for each little snow flake

hope this is right now

Or you could just use a particle system...

http://nsworld.ns-central.co.uk/mappingguide/appendix1b.php

thats they way u do
it
there no special fgd
it whouldent work if u had it

if there was it whould snow in doors 2
most probly

THATS THEY WAY IT BEEN DONE!!!!!
or partical system thingy

There is no "weather" entity. Like Naigel said, use the env_particles_custom entity.
Make a box and tie it to func_illusionary and name it "snow", now create env_particles_custom and type "snow" to it's Generation Entity box. This makes particles to spawn from that "snow" box and fall down.

Check Naigel's link for more details and parameters.

This' how the snowing was done in agora

It's Ayumi, not Agora.

I would have thought everyone was aware of the particle entity being able to create such effects.

lol, the method using an env_beam and a target is something that was used in HL deathmatch levels 5 years ago, and is a very poor effect. Doesn't it eat up fps too?

I did it!
Wasnt as hard as I though, got mi snow with the env_particles_custom!

Trial and error attempts:
1. Created illusionary brush called snow abouve level, target illusionary with env_particle_custom, Targeted with with trigger_auto. Didnt work.
2. Relaised trigger_auto state was not on. Snow worked but did not move.
3. made snow move but it looked like you where flying through space wicth was cool.
4. Made snow fall real fast in chunks when used world gravity flag.
5. made it snow upto the sky.
6 finally made it snow down to the ground nice and smoothly, each prticle with a different speed.

/me cant wait for ns_particlezoo

Well, I compiled the snow into my map and baseicly although the particle system of ns is a good idea and can make some good effects, weather wise it stinks.

Go into the map fps_max set to 60, constant 60 fps through out the whole map as i run round, then 20 seconds later no matter where your stood it goes pants and the fps drops to 38 - 50 all over the map, Seems it dont matter where your stood or what direction your faceing or how far away you are the particles are always drawn!

I say code that weather system , It only draws where you are looking, it only falls where theirs sky brushes, It stops when it collides into a solid object and is only drawn infront of you and not in the distance or behind you only in a short cone infront of you and looks real cool, the fps impact of this other system takes jack all resource, has a very minute impact on fps.

Uhm dunno what you did wrong there but I use some heavy duty env_particles_custom's (lots of waterdrops and a large steam pit) I don't have this problem at all. Only when I look traight at them and they are in my FOV I see the fps drop a little...

one can create some very nice weather effects btw rangeing from a little rain to heavy snowfall.

why make a wether code when ns is made to be in doors
in a space ship attacked by ailens or space station
normaly it dosent snow on any other planet
that be just strange all in the ns "indoor mod" theres a wether entite dose it reallt fit in?

Out door maps are discouraged by the dev team so thier is very little need for a weather effect.