Zambretti forecast - Rabozee

Language:

Actual weather
Forecast
Precipitation
Yr-No radar
Wind
Sun/Moon/Earth
Customize
More radar / maps
More advisories
More Forecasts
History / almanac
Live Data
Mesonet
- World
- Nearby Buoys
Other Stuff
- Mobile site
- Airport weather
- Airport weather v3
- About
- Links
- Partnerships
- Status
- Contact
- Website Map
- WhoIsOnline
Demo extra pages

Rain radar

Zambretti forecast

Exceptional Weather, Stormy, much precipitation

Forecast based on: Pressure: 0 hPa - Trend: 0 (No change) - max: 1025 - min: 965
Wind from: (English)
Month: 6. Hemisphere: 1 (Northern).

Zambetti

This program tries to get a "same result forecast" as when using the

1915 Negretti and Zambra (Zambretti) Forecaster.

The original paper forecaster was designed for the Northern Hemisphere and UK "Weather Range". ie. The nearer the Poles the greater the spread between lower and upper barometer levels and large "trends" are needed for weather conditions change.

Conversely, the nearer the Equator the smaller the "spread" and smaller "trends" for change.

On the left a picture of the original weather prediction disc.

A forecast at approx. 09:00 local Solar Time is allegedly better than 90% accurate ! - even though it takes no account of rate of barometer change, wind speed or temperature.

More information can be found here: drkfs.net

The original idea for a program like this, comes from beteljuice and operates in different incarnations since 2008.

© 2026 Rabozee | Scripts from: Leuven-Template (2.8x) | Weather program: Meteohub (5.1-7384)

1 user online | Contact Us | Valid HTML5 | Valid CSS

Never base important decisions on this or any weather information obtained from the Internet