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North American Monsoon

North American Monsoon. ATS 553. Annual Distribution of Precip. Cold Cloud Frequency. Cold Cloud Frequency. In June: Cold clouds (i.e., thunderstorms) occur in the central U.S. and along the cordillera of the Sierra Madre mountains. Cold Cloud Frequency. Cold Cloud Frequency. In August:

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North American Monsoon

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  1. North American Monsoon ATS 553

  2. Annual Distribution of Precip

  3. Cold Cloud Frequency

  4. Cold Cloud Frequency In June: Cold clouds (i.e., thunderstorms) occur in the central U.S. and along the cordillera of the Sierra Madre mountains.

  5. Cold Cloud Frequency

  6. Cold Cloud Frequency In August: Cold clouds (i.e., thunderstorms) spread throughout Mexico and extreme southern Arizona.

  7. 0Z images for 10 days in July 2004

  8. Model of a Gulf Surge Transports moisture up the Gulf of California, up the Colorado River valley, and into the American Southwest.

  9. Model of a Gulf Surge A Thermal Low exists over the deserts of Arizona and southern California.

  10. Model of a Gulf Surge To get a Gulf Surge, you need to create an area of High pressure near the southern tip of Baja California. H

  11. Model of a Gulf Surge Low level easterly waves slide across Central America, bringing convection.

  12. Model of a Gulf Surge • When the convection is across the mouth of the Gulf of California, a region of relatively high pressure is created DUE TO COOLING. • Evaporation of raindrops • Reduced solar heating H

  13. Model of a Gulf Surge At Yuma, Arizona: Winds shift out of the south-southeast. Temperatures FALL. Dewpoints RISE. H

  14. Diurnal Cycle High altitudes have a peak of convection in mid afternoon. Low altitudes have a peak at night.

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