This story actually happened to my cousin. One night, he and his friends decided to have a sleep over. My cousin's room has a double-decked bed. There were actually 4 of them. Two of his friends were sleeping on the floor, he was sleeping on the top bunk, and his best friend was sleeping at the lower bunk.
At around 2am in the morning, weird things started to happen. His best friend was awaken because my cousin was shaking at the top bunk. As if somebody was strangling him or as if he was having a bad dream. He was about to get up and check on my cousin but was terrified, as he saw a lady in white staring at him at the foot of the bed! The apparition lasted for about less than a minute, then the lady in white disappeared. He immediately jumped out of his bed and awaken my cousin. Two of their friends were awakened as well, so they then discussed what happened.
The next morning, we received a phone call from one of our neighbors. They just witnessed a weird incident at around 2am. The same time that the lady showed up. Our neighbors said that around 2am, there was like a fire swirling at the roof of our house and it lasted for about a minute.
They were about to call the fire station as they thought that our house was burning. Was there a connection between the things that happened? It is a mystery up to now.
"Physically, St. Elmo's Fire is a bright blue or violet glow, appearing like fire in some circumstances, from tall, sharply pointed structures such as lightning rods, masts, spires and chimneys, and on aircraft wings. St. Elmo's Fire can also appear on leaves, grass, and even at the tips of cattle horns[2]. Often accompanying the glow is a distinct hissing or buzzing sound..."