Al's Bait & Tackle

• Weather Home
• Cameras
• Main Website
• Forecast
• Rain Radar
• BoM Warnings
• Wind Information
• Thunderstorms
• Marine Radar
• UV Index Forecast
• Sun/Moon/Earth
  • Sun and Moon
  • Earthquakes
  • Space information
• More radar / maps
  • Clouds
  • Airplane radar
• More advisories
• More Forecasts
  • MetNo forecast
  • YRno forecast
  • Yahoo forecast
  • Zambretti forecast
• History / almanac
  • Weather History
• Live Data
  • Steelseries
  • WU live
• Mesonet
  • World
  • Nearby Buoys
• Other Stuff
  • Mobile site
  • Airport weather
  • Airport weather v3
  • About
  • Links
  • Partnerships
  • Status
  • Website Map
• Development
  • Another home page
  • example new page
  • WiKi Leuven-Template
  • example external link: CWOP LED
  • Configure
  • Demo extra pages
    • WU weather near you
    • WU stations
    • wind map
    • Suncalc
    • Console

Warning: A non-numeric value encountered in /home/alsbaita/public_html/weather/forecasts/wsZambretti.php on line 39

Zambretti forecast

Exceptional Weather, Settled fine

---

Forecast based on: Pressure: 1109.6 hPa - Trend: 0 (No change) - max: 1033 - min: 990.8
Wind from: (English)
Month: 4. Hemisphere: 2 (Southern).

---

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.

© 2025 Al's Bait & Tackle | Scripts from: Leuven-Template (2.8k) | Weather program: Davis Weatherlink.Com (Davis Instruments Corp.)

| Valid HTML5 | Valid CSS

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