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Hail Report  
Hail Report Information
Station Number: CO-JF-267
Click to enlarge image.
Station Name: Golden 9.4 WNW
Date: 7/11/2009 6:00 PM
Submitted 7/08/2010 9:32 AM
Taken at registered location: True
Notes: Hail pad will be submitted. There are many tiny up-facing bumps on the hail pad, especially on the edges that I have previously interpreted as tiny hail stones (10x10x144=1440 total hits estimated). The bumps seem to have been erased over most of the pad by subsequent hits by raindrops or soft hail (perhaps 1 per square inch, or 144). I am now uncomfortable with this interpretation and think that the tiny bumps may result from the interaction of rain or freezing rain with the surface texture of the Styrofoam backing of the hail pad. Has any careful research been done on the deformation and interpretation of hail pads by rain and hail at a range of temperatures. The hail pad collected at 7AM on 7/12 was deployed since 6/22, during which time 1.19 in of precipitation fell in the rain gauge in 13 events. Minor indentation due mainly to rain occurred on the hail pad previously in the period, but
Hailstone Information
Largest Size: 3/8"
Average Size: Rice
Smallest Size: Rice
Stone Consistency: Hard, Soft
Hail Storm Information
Duration Minutes: NA
Duration Accuracy: 10min
Timing:
More Rain than Hail: False
Hail Started: After rain
Largest Hail Started:
Damage:
Hail pad information
Angle of Impact:
Number of Stones On Pad: 389
Distance Between Stones On Pad: 0.1
Depth Of Stones on Ground:
Has Samples: False