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Disease risks from yesterday's rain

The rain events on 4/16/11 at Winchester started on 4:20AM and lasted until 9:40PM or so, and then the relative humidity was high (>90%) until 10:20PM.  Thus, this potential infection event accounted for 20 hours of wetness and the average temperature during the event was 55F.  It was long and warm enough for both Phomopsis and black rot infection.
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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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