Had a lockloss at 23:32utc (4:32pm PDT).  Nothing obvious, but it was windy.  Thought I would let H1 relock on its own, but it's been over an hour, and have tried various things, and am now going for an alignment (I've not done an alignment in several weeks!).

NOTES:

• Let H1 relock on its own.
• Green arms locked up OK.
• Lockloss at FIND_IR, LOCKING_ALS, FIND_IR, 
• ALSx polarization was at 28, so took time to reduce it (22.5 was all I could get down to, and it started increasing).  While I was at it, I took ALSy from 2.8 to about 0.5.
  • Marked this briefly as Preventative Maintenance and then Corrective mainteannce
  • Diag Main continues to have warning of ALSx polarization of " > 20% ". 
• Returned to locking and finally able to FIND IR!  Moved on to DRMI locking, but after 3min flashes weren't great, so 
• Went for PRMI....only able to get POP18 to 51.
• DRMI would not lock after 10min, Checked MICH Fringes & moved BS only a little.  Then tried PRMI (AGAIN), but there was a lockloss.  
• Gave up on relocking as-is.
• 0:38 INITIAL ALIGNMENT begins.
• 0:56 IA ends.
• Back to locking!