Jul 112014
 
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The monsoonal flow will shift a bit to the east for today and the weekend. This means less rain for western Arizona. As you can see in the satellite water vapor image below, an orange knuckle of dry air has moved into the state. Not to worry, next week we should see more rain.

A lot of discussion, in one-on-one conversations and on the internet, about next winter’s El Nino.  Retired climate scientist Bob Tisdale has been tracking the development of the this year’s El Nino. You can visit his blog via that link to catch up on the deep details. As of his last update, the El Nino conditions seem to have not fully developed. It’s not just the temperatures that drive El Nino, it’s the winds. Currently, the trade winds haven’t shifted to sustain El Nino conditions. Stay tuned, it could still happen.

Water vapor image. Orange indicates dry air. From the National Weather Service.

Water vapor image. Orange indicates dry air. From the National Weather Service.

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