Sail Plane
Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 4; Flight Crew Total 1642; Flight Crew Type 95
Situational Awareness
Ground Event / Encounter Object; Ground Event / Encounter Ground Strike - Aircraft; Ground Excursion Runway; Inflight Event / Encounter Weather / Turbulence
General None Reported / Taken
Human Factors; Weather
The incident occurred on my fifth flight of the day. All landings to that point were uneventful. On flight five; I entered the landing pattern at 2100 ft MSL; when turning base; noticed stronger head winds (winds were from 130-140 at 20 gusting to 26 mph).  I was plenty high at 500 ft on final; so I deployed the spoilers and realized making the runway was questionable because of late-day wind shear. I closed spoilers and figured I could make it to the grass under-run; which I did. However; at this point I was low and slow and touched down about 20 feet from the runway on the grass under-run; rolled over the threshold from the grass to the hard runway surface and curved left to the adjacent grass to the east of the runway; where the plane struck two runway lights with the left wing.  No one was injured; and I reported the broken lights to the FBO personnel.
Grob 103 glider pilot reported landing short of the runway when the winds changed during his approach.