6 am - NWS said 21 degrees and the thermometer agrees.  One of the instrumented blossoms reads 30 and the other reads 27...not good.  The tail end of one of the row covers has blown out again.  The wind blew over a 6 foot step ladder last night...must have been strong.

I see a lot of darkening blossoms in the areas where the covers blew off, also in the first row peaking under the cover.  I will leave the covers on through saturday for more freezing nights, but it does not look promising that the blossoms survived. 

Started designing a tractor mounted hydraulically powered row cover spooling implement.  Ordered the hydraulic motor, shafts, and shaft couplings.  Decided to go with a big motor direct driven to the spool rather than the complexity of a chain reduction.