north american monsoon
DESCRIPTION
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: - PowerPoint PPT PresentationTRANSCRIPT
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North American Monsoon
ATS 553
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Annual Distribution of Precip
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Cold Cloud Frequency
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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.
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Cold Cloud Frequency
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Cold Cloud Frequency
In August:
Cold clouds (i.e., thunderstorms) spread throughout Mexico and extreme southern Arizona.
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0Z images for 10 days in July 2004
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Model of a Gulf Surge
Transports moisture up the Gulf of California, up the Colorado River valley, and into the American Southwest.
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Model of a Gulf Surge
A Thermal Low exists over the deserts of Arizona and southern California.
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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
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Model of a Gulf Surge
Low level easterly waves slide across Central America, bringing convection.
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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
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Model of a Gulf Surge
At Yuma, Arizona:
Winds shift out of the south-southeast.
Temperatures FALL.
Dewpoints RISE.H
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Diurnal Cycle
High altitudes have a peak of convection in mid afternoon.
Low altitudes have a peak at night.