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Disease risks from yesterday's rain

We received about 0.02 inches of rain at Winchester.  Showers came in and out since around 1:40 PM until 5:00 PM (3 hrs 20 min).  The air was dry during the time of rain (< 90% RH), and the average temperature was 55F.  It was not long enough for either Phomopsis or black rot.  Although the temperature was lower than the optimal, it was probably warm and long enough for downy mildew.
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Disease risks from yesterday's rain

Winchester area received precipitations from thunderstorms yesterday.  It started around 3:30PM and lasted until 7:00PM.  The actual amount of precipitation was not high (0.05 in) compared with other northern VA regions where a severe thunderstorm warning was issued, but since the ending part of the thunderstorm hit during the evening, the relative humidity was high (>90%) until 2 AM or so.  Thus, it accounted for 11.5 hours of wetness with the average temperature of 73F.  It was warm and long enough for Phomopsis, black rot, and downy mildew. We are still having chances of rain (40-60%) until Monday.
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