Borderlander

In the TWOK Prelude, Kelek wonders “did the other eight die?” as he approaches Jezien, and summarizes Talenel had died based on his being the missing blade. Shalash knows when Jezien is killed, but this is pointed out to be an abnormal death, given it’s permanent. And he’s her father. Also, he’s the leader of the heralds. So there are potentially some reasons why she (and perhaps the other heralds) can sense his death suggesting that may be out of the ordinary. Presumably, the herald that died in the prologue didn’t die a “final death” the likes of Jezien. So my questions after reading this are: A) did the other heralds sense the death of the herald in the prologue (and presumably still know this occurred)? And, how did stormfather know about the death? Would the stormfather always sense when a Herald dies?