This is a public-interest archive. Personal data is pseudonymized and retained under GDPR Article 89.

Re: Frost?

Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html

>My meteorology prof told us that you actually *can* predict
>(somewhat) the evening low temp by looking at the dewpoint
>at around 6PM.  Within my limited observations, this does
>seem to give an idea whether or not it'll freeze on a given night;
>just watch the evening news!  Your mileage may vary, of course.
>
>Here in eastern Nebraska, we got a spate of record cold
>last night.  In Omaha, where I live, we got down to 34F,
>tying a record that's stood since 1983.  I noticed that a number
>of previous early frost records like this were set in years 
>that had nasty winters - 1934, 1982...  That, plus the forecasts
>I've been seeing for this winter, make me think I oughta get
>out and caulk the windows pretty soon...  :)
>
>Jason
>jasonq@novia.net
>
There is a way to predict frost if you have the dewpoint forecast, but I'm
not expert on how that prediction goes. I wish someone would explain it.
One thing that riles me is that the Weather Service didn't get as large a
budget as it wanted, so it cut dewpoints out of its predictions. That will
screw the fruitgrowers and gardeners, for sure.

The other thing is, that gardeners should remember that the Weather Bureau
temps are calculated at about 5 feet above the ground. Cold falls. 34
degrees at 5 feet above ground may be 29 at ground level. Weather people
acknowledge that ground level temps are colder, but there had only been two
studies of that the last time I contacted the Weather Bureau. One had
ground level temp at 3 or 4 degrees colder, but the other had ground level
temp 6 degrees colder. I believe the latter. I live about 200 yards
(slightly downslope) from the Weather Bureau's main thermometers, etc., and
they've proclaimed the temp had falled to 38 degrees. My dead squash vines
said 32 or less.  Margaret L


______________________________________________________________________
To unsubscribe, write to sqft-unsubscribe@listbot.com
MSN Messenger Service lets you stay in touch instantly with
your family & friends - Visit http://messenger.msn.com
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index