Grer Dalush

For time collapse:
"Life cycle has not begun" - This means you've found a wormhole just as it is forming, and it will spawn in a minute or two.
"Probably won't last another day" - This is the wormhole's main life, and has over 25% of it's total time remaining.
"Reaching the end of its natural lifetime" - This signifies the wormhole will be naturally collapsing soon, having less than 25% of it's total time remaining. Collapse is imminent.

For mass collapse:
"Has not yet had its stability significantly disrupted" - This indicates the wormhole is still quite stable, and has over 50% of its total allowable mass left.
"Has had its stability reduced, but not to a critical degree yet" - This means the wormhole has seen a decent amount of travel, and has less than 50% of its total allowable mass left.
"This wormhole has had its stability critically disrupted by the mass of numerous ships passing through and is on the verge of collapse." - Get out