Arizona monsoons unpredictable

June 18, 2007

The Arizona monsoon season produces up to a third of the region's annual rainfall but it is tough for forecasters to predict.

Some longtime residents of Arizona said the monsoon season is not as severe as it once was, The Arizona Republic reported. But possible explanations for the tamer weather range from urban sprawl to global warming.

Christopher Castro, a climate scientist at the University of Arizona who has worked extensively on monsoon study projects, has suggested the phenomena of El Nino and La Nina might cause monsoons. Scientists have looked to the equilateral Pacific Ocean for possible answers to the weaker monsoons.

Despite technological advances that allow meteorologists to predict trends on a planet-wide scale, monsoons have always had a random, unpredictable nature, the Republic said.

Copyright 2007 by United Press International

Explore further: Students strive for deeper understanding of urban desert meteorology

Related Stories

Unpredictable Monsoon Season Almost Under Way?

July 12, 2010

( -- The monsoon is coming. Perhaps this weekend. Maybe. It's always a guessing game when and where and to what extent the annual summer thunderstorms will appear. This year is no different.

Project seeks monsoon storm source

June 2, 2006

This monsoon season will be like no other, according to Joseph Zehnder, a meteorologist with Arizona State University. The reason is because it will be studied more extensively than any other monsoon season.

Recommended for you

Can Paris pledges avert severe climate change?

November 26, 2015

More than 190 countries are meeting in Paris next week to create a durable framework for addressing climate change and to implement a process to reduce greenhouse gases over time. A key part of this agreement would be the ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.