i dont know much about map.ini stuff and such cause i prefer to read inis :P
well in weather.ini, theres smthg about snow and stuff, never tried it but i guess it would just edit it on all maps which sucks
but maybe it can help to edit your map.ini stuff
heres the code
Code:
Weather
SnowEnabled = yes ; enable/disable snow on the map.
IsSnowing = no ; is it snowing today?
SnowTexture = EXRainDrop.tga ; texture used for each snow particle.
SnowBoxHeight = 300 ; height from which snow falls
SnowSpacing = 30 ; snow spacing -- less means more
NumberTiles = 4
SnowAmplitude = 0 ; amount of side-to-side movement.
SnowFrequencyScaleX = 0 ; speed of side-to-side wave movement.
SnowFrequencyScaleY = 0 ; speed of side-to-side wave movement.
SnowSpeed = 250.0 ; speed at which snow falls
SnowPointSize = 5 ; scale the size of snow particles.
SnowMinPointSize = 40 ; min point size
SnowMaxPointSize = 80 ; max point size
; Some video cards can't do hardware accelerated particles. Set this
; setting to "no" in order see what emulation will look like. Use the
; SnowQuadSize setting to make it look similar to PointSprite version.;;;
SnowPointSprites = no ; set to "no" for point-sprite emulation.
SnowQuadSize = 10 ; scale the size of snow particles when using point-sprite emulation