This is great post. I do not have the apps on my phone and the phone usually dies anyway while on the lake. My rule is see lightning or hear thunder and it's over. This works well with my Tracker boat, as it's fast enough to get me off the water. Was caught on PK in my Sea Eagle once and it was very scary. Nothing to do but power over the ocean like waves, hunker down and pray fervently to God that I'm not struck by lightning.
As for the people who didn't listen to you and were caught in the storm on that lake, I'm sure they got a valuable lesson if they survived. Might even have been a spiritually enlightening experience because few things will focus the mind to eternity like the prospect of certain death.
Wind and Wave Obey Jesus
35 On the same day, when evening had come, He said to them, “Let us cross over to the other side.” 36 Now when they had left the multitude, they took Him along in the boat as He was. And other little boats were also with Him. 37 And a great windstorm arose, and the waves beat into the boat, so that it was already filling. 38 But He was in the stern, asleep on a pillow. And they awoke Him and said to Him, “Teacher, do You not care that we are perishing?”
39 Then He arose and rebuked the wind, and said to the sea, “Peace, be still!” And the wind ceased and there was a great calm. 40 But He said to them, “Why are you so fearful? How is it that you have no faith?”[d] 41 And they feared exceedingly, and said to one another, “Who can this be, that even the wind and the sea obey Him!”[u][/u]
John 21:3 Simon Peter saith unto them, I go a fishing. They say unto him, We also go with thee.