It looks like we have thunderstorms every weekend!

There were a few line of rains went through Winchester area, and two risk events were observed.  One was on Saturday morning with 8.5 hours of wetness with 68F, and the other one is on-going from last night with 5+ hours with 70F.  The first one is a risk event for black rot, Phomopsis, downy mildew, and Botrytis. 

I will update for the second event, but from the look of outside, the humidity may drop very soon.

These rains (or high humidity) during night time promote downy mildew to produce its spores.