Monday was a spectacular early May day of weather for Iowa with afternoon temperatures near 70 and an east to northeast breeze. Such a combination of temperature and wind direction is a bit rare for May as shown by the featured wind rose. The wind rose presents wind speed and direction frequencies during May for Ames when the air temperature is at least 70°F. The smallest frequencies shown are from the ENE and NE. Our present weather is being dominated by a near stationary upper level trough that is "cut off" to our south and east. This has our flow from the east as it spins counter-clockwise. This system will eventually lift northeast and we'll have a chance of showers on Wednesday.

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