Monsoon 101: Madden-Julian Oscillation - Tucson News Now

Monsoon 101: Madden-Julian Oscillation

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    Pedophile beaten to death by angry preschool parents

    Thursday, December 8 2016 3:25 PM EST2016-12-08 20:25:40 GMT
    When Marcelo Fabian Pecollo was released from jail after just four years behind bars, a group of angry parents reportedly took the law into their own hands and beat the pedophile convicted of molesting five preschool children to death. (Source: Facebook)When Marcelo Fabian Pecollo was released from jail after just four years behind bars, a group of angry parents reportedly took the law into their own hands and beat the pedophile convicted of molesting five preschool children to death. (Source: Facebook)

    When a pedophile convicted of molesting five preschool children was released from jail after just four years behind bars, a group of angry parents reportedly took the law into their own hands and beat him to death.

    When a pedophile convicted of molesting five preschool children was released from jail after just four years behind bars, a group of angry parents reportedly took the law into their own hands and beat him to death.

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    Saturday, April 22 2017 9:47 PM EDT2017-04-23 01:47:26 GMT

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    Tucson police say a man was shot after trying to steal a car in the 2800 block of East Manchester Street.

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A wave of tropical energy called the Madden-Julian Oscillation (MJO) can affect monsoon action here in Arizona. 

The MJO originates in the Indian Ocean and then travels east, across the Pacific Ocean. This wave enhances tropical storm formation as it reaches the west coast of Central America and South America. Increased tropical activity in this area of the ocean can then make its way up the west coast of Mexico, eventually pushing monsoon moisture into Arizona. The MJO cycle ranges from 30 to 60 days, meaning a new wave arrives every one to two months. 

The below loop shows storm action across the globe from the last three days. It is made up of data from four different satellites. The yellows and reds indicate where convection (rain and storms) are covering the planet. Look for a mass of brighter colors moving eastward along the equator between the Indian Ocean and the west coast of Central America. During the summer months, this may indicate a MJO.


Below is one of the MJO forecasts for the next 40 days. Orange indicates favorable MJO conditions. As the orange approaches the west coast of Mexico and Central America, tropical storm activity is expected to increase. This can result in an uptick of monsoon storm action in Arizona days to a week later. Click here to see other computer model forecasts.

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  • Check rain totals in your neighborhood

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    Tuesday, January 5 2016 9:52 AM EST2016-01-05 14:52:10 GMT
    Monday, September 19 2016 11:29 PM EDT2016-09-20 03:29:18 GMT

    Join a network of your neighbors and report rain totals in your area.

    Join a network of your neighbors and report rain totals in your area.

  • Rare video of sprite caught on video from right here in Southern Arizona

    Friday, July 29 2016 1:45 PM EDT2016-07-29 17:45:41 GMT
    https://www.facebook.com/149693765079512/photos/pcb.1048115895237290/1048114851904061/?type=3&theaterhttps://www.facebook.com/149693765079512/photos/pcb.1048115895237290/1048114851904061/?type=3&theater

    To sum it up: WOW! A sprite is a type of lightning that stretches up into space, rather than down to the ground. The flashes can extend 50 miles above a thunderstorm. Normally, you would have to fly above a storm to see this rare phenomenon.

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  • Shifting climate means Tucson could be feeling more like Middle East

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