Front Porch Thunderstorms Ever watched a storm cloud roll across the sky? In the south, we do it from our front porch in a rocking chair with a glass of sweet tea. Hear the thunder and feel the ground shake with this deep, fresh rain scent. Watch out for the lightning! Pure Soy. Phthalate Free Fragrance. Burn Time (approximate) - 60 to 70 Hours of Warming Time.