Precipitation Duration Observations As of    19:55   5/9/08

Data In This Chart Is From A Davis Vantage Pro  Weather Instrument 0=Dry Conditions   13=Precipitation is Occurring Data is for today starting at midnight - 24 Hour Time used

0  Current Value at 19:55	0  Maximum value 19:30  Generally Time Precip. Started  (If value=0 then 0:00 or current time or - - - is shown)
-0.0  Fastest Change in Wetting 19:30  Generally Time Precip. Started  (If value=0 then 0:00 or current time or - - - is shown)	-0.0  Slowest Change or Drying 13:46  Time Last Precip. Ended  (If value=0 then 0:00 or current time or - - - is shown)

Precipitation Information
The leaf wetness 2 graph is being used as a Precipation Duration Times in Past 24 Hrs. I built a small wood box under the leaf wetness sensor grid with two 15 watt bulbs as a small heat source. This heat source is controlled by a dimmer switch according to the season. The heat prevents condensation of dew on the #2 Leaf Wetness Sensor so it only detects the beginning of precipitation whether it be snow or rain. Then if the precipitation stops the heat source will soon dry the precipitation and determine the end time of the precipitation and the ending period. This instrument is good to check the timing of a sprinkle or shower during the night that was too little to be measured by the rain gauge.
(Heated Sensor & 15=Precip.) Precip. Pds. in the Past 24 Hrs.		The Amt. of Precip. Observed Each Hr. During The Last 24 Hrs.
Hours of the Day		Hours of the Day
Precip. Time Periods During the Past Week		The Amount of Precip. Observed Each DAY During The Past week
Days of the Month		Days of the Month

Other Current Conditions Links
Detailed Obs.	Precip. Obs.	Annandale Obs.	Barometer Obs.	Wind Obs.
Rel. Humidity Obs.	Solar Rad.	Current VA Obs.	Temp. Obs.	Snowfall Obs.