[OKDXA] South Orkneys

[Jay Eimer]

I saw the same thing on my commute yesterday morning.  My truck has a thermometer display.

I live on a hill - and saw 0 at my house (on top of the tallest hill in the immediate vicinity).  But I saw 10 degree swings as I dropped into valleys  - down to -11 at one point, -7 or -8 more typical at the bottoms, and -2 or so on the crests.

Jay
AD5PE

--- On Fri, 2/11/11, Kim Elmore <cw_de_n5op at sbcglobal.net> wrote:

> From: Kim Elmore <cw_de_n5op at sbcglobal.net>
> Subject: Re: [OKDXA] South Orkneys
> To: "Discussion of OKDXA" <okdxa at mailman.qth.net>
> Date: Friday, February 11, 2011, 6:10 AM
> These are particularly unusual
> circumstances!  Polar (not merely 
> arctic) air is set in place with a fresh snow pack, light
> or calm 
> winds and clear skies. This maximizes IR radiation (ice is
> a superb 
> radiator at these far IR wavelengths) and we get extremely
> shallow, 
> extremely cold layers at ground level.
> 
> I have two thermometers at my QTH: one at about 10 m up my
> tower, and 
> one at about 1.5 m out by my wife's garden. At 10 m, the
> lowest 
> temperature was 0F. At 1.5 m, it was -4F. That's a
> magnificent 
> inversion with a stunning lapse rate (change of temperature
> with 
> height) of +144 deg F per 1000 ft!  Obviously, the
> layer wasn't 1000 
> ft deep, but that's a very strong inversion, all driven by
> radiation!
> 
> Kim N5OP
> 
> At 08:49 PM 2/10/2011, you wrote:
> >They were reporting them like they were actual temps,
> but they seemed almost
> >to low to be true.  The South Orkneys is warmer
> than that now-of course it
> >is summer there also.
> >
> >73s John AA5JG
> >
> >----- Original Message -----
> >From: "Kim Elmore" <cw_de_n5op at sbcglobal.net>
> >To: "Discussion of OKDXA" <okdxa at mailman.qth.net>
> >Sent: Friday, February 11, 2011 2:46 AM
> >Subject: Re: [OKDXA] South Orkneys
> >
> >
> > > These are all *actual temperatures.* The Nowata
> mesonet station
> > > actually got down to
> > > -31F. One of the stations (I've forgotten which
> right now) had the
> > > lowest ever recorded wind chill of -47F but the
> others are all actual
> > > air temperatures.
> > >
> > > Kim N5OP
> > >
> > >
> > >
> > > At 08:38 PM 2/10/2011, you wrote:
> > >>Were these temperatures I am seeing reported
> the actual temperature or the
> > >>wind chill?
> > >>
> > >>73s John AA5JG
> > >>
> > >>----- Original Message -----
> > >>From: "Nelson Derks" <ac5up at windstream.net>
> > >>To: "Discussion of OKDXA" <okdxa at mailman.qth.net>
> > >>Sent: Friday, February 11, 2011 1:00 AM
> > >>Subject: Re: [OKDXA] South Orkneys
> > >>
> > >>
> > >> > The Mesonet station near Bixby reported
> an overnight low of -21.5
> > >> > degrees @ 7:40 am with an afternoon high
> of +27 degrees @ 3:45 pm for
> > >> > Thursday, January 10th.
> > >> >
> > >> > Yeah, we know it's cold outside, but
> work the numbers against the
> > >> > clock.
> > >> > That's a 48.5 degree swing in
> approximately 8 hours. Not exactly
> > >> > typical.
> > >> >
> > >> > Visit http://mesonet.org for a temperature near
> you and more weather
> > >> > stats than you ever dreamed
> possible............ :-P
> > >> >
> > >> >
> ______________________________________________________________
> > >> > OKDXA mailing list
> > >> > Home: http://mailman.qth.net/mailman/listinfo/okdxa
> > >> > Help: http://mailman.qth.net/mmfaq.htm
> > >> > Post: mailto:OKDXA at mailman.qth.net
> > >> >
> > >> > This list hosted by: http://www.qsl.net
> > >> > Please help support this email list: http://www.qsl.net/donate.html
> > >>
> >
> >>______________________________________________________________
> > >>OKDXA mailing list
> > >>Home: http://mailman.qth.net/mailman/listinfo/okdxa
> > >>Help: http://mailman.qth.net/mmfaq.htm
> > >>Post: mailto:OKDXA at mailman.qth.net
> > >>
> > >>This list hosted by: http://www.qsl.net
> > >>Please help support this email list: http://www.qsl.net/donate.html
> > >
> > >
> ______________________________________________________________
> > > OKDXA mailing list
> > > Home: http://mailman.qth.net/mailman/listinfo/okdxa
> > > Help: http://mailman.qth.net/mmfaq.htm
> > > Post: mailto:OKDXA at mailman.qth.net
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.html
> >
> >______________________________________________________________
> >OKDXA mailing list
> >Home: http://mailman.qth.net/mailman/listinfo/okdxa
> >Help: http://mailman.qth.net/mmfaq.htm
> >Post: mailto:OKDXA at mailman.qth.net
> >
> >This list hosted by: http://www.qsl.net
> >Please help support this email list: http://www.qsl.net/donate.html
> 
> ______________________________________________________________
> OKDXA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/okdxa
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:OKDXA at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>