Disease risks from yesterday’s rain + meeting info.

Winchester received a series of rains from 2:20 PM yesterday (5/22/10), and the relative humidity stayed high (>90%) until 9:20 AM.  Thus, we had about 19 hours of wetness with… Read more

Rains are forecusted for today and tomorrow

It looks like the first set of thunderstorm is coming very soon.  (Actually, I see rain drops now.)  I hope it won’t stay very long.  There are 30-40% chance of… Read more

Disease risks based on this week’s rain events

(I’m still at a meeting, so, I will make it quick.)  At Winchester, the series of rain started around 2 AM on this Monday (5/17/10), it was not a continuous… Read more

Rains are forecusted until Wednesday

I thought the forecast was saying rains from Tuesday, but I guess I didn’t read it right.  Now two low pressure systems are coming back to back and we are… Read more

Disease risks from yesterday’s rain

At Winchester, the second set of rain started at 4:00 pm on 5/12/10 and then we had several short showers during the night.  In the end, the relative humidity was… Read more

FYI: frost injury index

This page from Michigan State University Extension describes the temperature threshold to have frost/cold injury on Concord vines.  Hopefully we won’t receive any frost at this point. Also, I updated… Read more

Disease risks from yesterday’s rain

At Winchester a series of rain started around 11:40 am and lasted until 6:40 pm resulting in 0.1 inches of precipitation.  The average temperature during this period was about 50.5… Read more

Frost damages and tomorrow’s rain

Some parts of the central and northern VA had a cold morning that may have resulted in frost/freeze injuries on your vines.  You may see younger leaves with damaged tissues… Read more

Chance of rain tomorrow (Tuesday 5/11/10)

The percentage of the chance are 90% in the northern VA, 80% in the central VA, 60% in the southwestern VA, and 30% in the southeastern VA as of noon… Read more

We missed the forecasted rain.

Looks like most of us did not receive any precipitation yesterday.  I checked several weather stations around VA.  Some had a trace amount of rain, which probably did not account… Read more
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