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Grand
Canyon National Park CASTNET |
The following wind roses are based on data from the GRC474 CASTNET site.
Annual and seasonal wind roses should represent canyon rim locations. |
Click on wind rose graphics to show full size image.

Annual (1996-2001)

Winter (December-February) |

Spring (March-May) |

Summer (June-August) |

Fall (September-November) |
The following annual wind roses, for nighttime and daytime hours, indicate
the diurnal wind direction pattern at GRC474 Drainage flow patterns may vary
slightly from rim site to rim site, but should in general be southerly during
nighttime drainage flow into the canyon.

Night (0100-0600) |

Day (1300-1800) |
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