Searing Exposure

[zeroorez]

sandstorm
SEARING EXPOSURE
Evocation [Fire, Light]
Level: Druid 4, sorcerer/wizard 4
Components: V, S, M/DF
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One living creature
Duration: Instantaneous
Saving Throw: Fortitude partial;
see text
Spell Resistance: Yes
You expose the target to the effect of
hours of exposure to severe heat and
the desert sun in only a moment.

What are the effects of this to creatures vulnerable to sunlight?
is this like instant kill the vampire?

fort save for half damage and less effects but you still rosted in the sun for hours so no save for the undead beach bum.

 

[Wolfwood2]

sandstorm
SEARING EXPOSURE
Evocation [Fire, Light]
Level: Druid 4, sorcerer/wizard 4
Components: V, S, M/DF
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One living creature
Duration: Instantaneous
Saving Throw: Fortitude partial;
see text
Spell Resistance: Yes
You expose the target to the effect of
hours of exposure to severe heat and
the desert sun in only a moment.

What are the effects of this to creatures vulnerable to sunlight?
is this like instant kill the vampire?

fort save for half damage and less effects but you still rosted in the sun for hours so no save for the undead beach bum.

By a strict reading of the rules it would have no effect whatsoever on an undead. The target is specifically "one living creature". Even just "creature" wouldn't help since it's a Fortitude save. You'd need "creature or object".