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Author Topic: Zambretti Forecaster  (Read 104129 times)

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Offline casacota

  • Posts: 248
  • Pyrenees / Catalonia
    • Observatori Meteoroḷgic de Sant Martí de Canals
Re: Zambretti Forecaster
« Reply #45 on: March 15, 2007, 09:51:37 PM »
An old "forecaster" is this Spanish monk:

http://www.surnames.org/aladin/frare.html

It is made with intestine fiber that reacts to humidity and (it is said) to pressure variations.

This monk in original version is rather inaccurate and unusable, but I did modify and adapt the Zambretti algorithm, plus some other data such as temperature, humidity and the boltek sensor, and made it work this way - sorry it is in Catalan:

http://frater.casacota.cat

Offline niko

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Re: Zambretti Forecaster
« Reply #46 on: March 25, 2007, 02:36:47 AM »
Here's another disc type weather forecaster, the Sager Weathercaster. Pic below courtesy of Brooke Clarke, more details (and a lot of other interesting stuff) on his weather page.

Offline administrator

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Re: Zambretti Forecaster
« Reply #47 on: March 26, 2007, 07:45:03 PM »
I just found a Sager Weathercaster for sale on eBay for $9.99 (compared to $49 and $125 that others want for them). Don't look for one at $9.99 now though...it's sold...to me ;-)
Chris
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Offline niko

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Re: Zambretti Forecaster
« Reply #48 on: March 26, 2007, 08:04:07 PM »
I just found a Sager Weathercaster for sale on eBay for $9.99 (compared to $49 and $125 that others want for them). Don't look for one at $9.99 now though...it's sold...to me ;-)

Well, that's a deal, the best I saw was $35 on Alibris which exceeded the value of my curiosity  :lol:

Offline Clanger

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Re: Zambretti Forecaster
« Reply #49 on: March 27, 2007, 08:29:22 PM »
I just found a Sager Weathercaster for sale on eBay for $9.99 (compared to $49 and $125 that others want for them). Don't look for one at $9.99 now though...it's sold...to me ;-)

Thanks for bringing these back to my attention. I had forgotten all about them. Are you going to give us a forcast comparison when it arrives.  :)

Offline doornenburgweer

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Re: Zambretti Forecaster
« Reply #50 on: April 01, 2007, 06:12:05 PM »
and who will start with an electronic version? I like to help.

regards,

gerard

Offline daveq

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  • Hollywood, MD
    • Hollywood - St. Mary's County, Maryland
Re: Zambretti Forecaster
« Reply #51 on: April 04, 2007, 07:30:46 PM »
I just found a Sager Weathercaster for sale on eBay for $9.99 (compared to $49 and $125 that others want for them). Don't look for one at $9.99 now though...it's sold...to me ;-)

My wife is addicted to yard sales and thrift stores.  She has a standing order from me to buy anything related to weather that costs a few bucks or so.  Today when I got home she said she found a weather book that had a marked price of $1.50 and it was 1/2 price day.  It turned out to be a Sager Weathercaster, in it's original box and appears almost new except you can tell the paper is old.  :D

Did a quick forecast and it compared pretty close to WXSIM.  Both are calling for rain and winds from the North - Northeast.  The biggest difference being it's calling for strong winds (25-38 mph) while WXSIM is calling for around 11 mph.

--Dave 

Offline niko

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Re: Zambretti Forecaster
« Reply #52 on: April 04, 2007, 11:04:18 PM »
That's a stroke of luck and quite a coincidence too  8O

Offline daveq

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Re: Zambretti Forecaster
« Reply #53 on: April 04, 2007, 11:31:07 PM »
Yeah, that's what I was thinking.  Maybe I'll play the forecast numbers for the Lotto.  She said it was with a bunch of old books in one box.  Not long ago she found one of the Weather Channel or USA books and a very nice lab type thermometer.  I had to stop her from bringing home remote temp sensors but I am hoping for a VP2 next. :)

--Dave

Offline Clanger

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Re: Zambretti Forecaster
« Reply #54 on: May 03, 2007, 05:07:17 PM »
I just found a Sager Weathercaster for sale on eBay for $9.99 (compared to $49 and $125 that others want for them). Don't look for one at $9.99 now though...it's sold...to me ;-)

Has it arrived yet ?  :)

Offline doornenburgweer

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Re: Zambretti Forecaster
« Reply #55 on: May 03, 2007, 06:42:28 PM »
I bought one for $ 30 and it arrived in the Netherlands. Interesting how somebody made this and to be honest it works great. I was thinking about some WD tags, so we can make it working with WD.

but for this moment no time for this project.

regards,

gerard


Offline administrator

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Re: Zambretti Forecaster
« Reply #56 on: May 05, 2007, 05:48:59 AM »
Has it arrived yet ?  :)

It has. I tried it when it arrived but as we were in very stable conditions at the time forecasting was a bit boring/easy. I'll dig it out and have another try now that things are changing.
Chris
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Offline Clanger

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Re: Zambretti Forecaster
« Reply #57 on: May 08, 2007, 02:46:42 PM »
The stable conditions finished here yesterday when a front moved across, blasted the trees for 20 minutes, and good to see some rain at last. But would have preferred to have the rain spread across a few hours.  8O

I am going to get a Zambretti Forcaster just for fun. I will keep a look out for a Sager.

doornenburgweer glad to see you are having fun with yours. Good to get away from a computer screen occasionally.

Offline N7XSQ

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  • Phoenix, Arizona
Re: Zambretti Forecaster
« Reply #58 on: July 29, 2007, 08:18:15 PM »
I just bought a 1954 Guest Weathercaster on eBay:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280133861265

It looks to be about the same as the Sager Weathercaster.

Steve

Offline Raymond M. Sager

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Re: Zambretti Forecaster
« Reply #59 on: August 21, 2007, 01:19:40 PM »
An old "forecaster" is this Spanish monk:

http://www.surnames.org/aladin/frare.html

It is made with intestine fiber that reacts to humidity and (it is said) to pressure variations.

This monk in original version is rather inaccurate and unusable, but I did modify and adapt the Zambretti algorithm, plus some other data such as temperature, humidity and the boltek sensor, and made it work this way - sorry it is in Catalan:

http://frater.casacota.cat

 

cumulus