There were a few isolated light showers passed around Winchester area early this morning, resulted in 6 hours of wetness with low 60's average temperature. This was a low infection risk event for Phomopsis, but since the rain was very light one (< 0.001 inch), I would say the risk was probably negligible.
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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