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Martin
Martin, Engineer
Category: General
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Experience:  i'm 41 and i never stopped studying and experimenting
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This would be for a strawberry plasticulture expert. If you

Resolved Question:

This would be for a strawberry plasticulture expert. If you are at the bud stage where you are using 25 for a critical temperature for row covers, how does the wind chill factor into that scenario. In other words, if it is predicted to be 28 with a wind chill of 20 degrees, would the wind chill make the low of 28 an unsafe temperature?
Submitted: 4 years ago.
Category: General
Expert:  Martin replied 4 years ago.
Hello.

Wind chill is only a factor for warm blooded animal because they are hotter than the ambient temperature. For inanimate object and plant, the wind actually create friction that increase the temperature. So if you only cover at 25, then 28 with chill factor of 20 is still over that 25. I find it quite low that said, i sprinkle water for less than this just in case (i do blueberry).

The most dangerous time for frost is when there is no wind at all.

A cheap technique often used to prevent frost is to use windmill around and in the field. Those mix the upper warmer air with the cold low air to increase the ground air about 2C. They are ineffective when there is no wind that said.
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