North American Fruit Explorers mailing list at ibiblio

[Kevin Moore <aleguy33@yahoo.com>]

My understanding is that a frost is anything 32 down to 30, a hard freeze is anything below 28. This may vary according to what you are measuring the temperature for. Plants, or water pipes, or . . . The effects of such weather can vary considerably by elevation and whether you have anything uphill to divert the cold air around you. (microclimate) If you're in bottom land, there's not much you can do to alleviate this sort of event except to turn your sprinklers on.

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From: Steve <sdw12986@aol.com>
To: NAFEx <nafex@lists.ibiblio.org>
Sent: Monday, May 11, 2009 11:13:45 PM
Subject: [NAFEX] Freeze or Frost?

   
Well, the apricots are in full bloom, the plums are about half way done
opening their flowers, the pear trees are about to bloom and the apples
are still pretty tight.

The National Weather Service forecast is for a low of 23 tonight with
"Patchy Frost". The weather channel was predicting a hard freeze with a
low of 30. (I see they are now saying 26 degrees.)

Mostly I'm just complaining about the weather but my question is, how
can the NWS call 23 degrees "Patchy Frost"? Wouldn't that be a pretty
widespread frost at that temperature? Wouldn't it actually be a hard freeze?

Steve in the Adirondacks

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