National Weather Service United States Department of Commerce

Mainly cloudy today; Showers Possible near the Lakeshore

Clouds will dominate across the area today and tonight. There will be a few rain showers along the lakeshore. Highs will range from 43 to 48 degrees. Saturday and most of Sunday will be dry, before the next chance of rain comes in Sunday night and Monday. Read More >

KGRR Winter Wind Rose KGRR Spring Wind Rose KGRR Summer Wind Rose KGRR Fall Wind Rose
Winter Wind Rose
December - February
Spring Wind Rose
March - May
Summer Wind Rose
June - August
Fall Wind Rose
September - November

 

Histogram

The histogram shows the frequency that visibility, ceiling and ceiling/visibility reaches various flight categories.

MVFR GTE 1,000 to LTE 3,000 and/or GTE 3 to LTE 5SM
IFR GTE 500 to LT 1,000 and/or GTE 1 to LT 3SM
LIFR GTE 200 to LT 500 and/or GTE 1/2 to LT 1SM
VLIFR LT 200 and/or LT 1/2SM

 

Wind Rose

A wind rose is a diagram that depicts the distribution of wind direction and speed at a location over a period of time. The length of each spoke on a wind rose indicates how often the wind comes from this direction. Longer spokes mean the wind comes from this direction more often. To give you a rough idea of the percentage there are dotted rings labeled in percent. Additionally, the colors on each spoke displays how often the wind speed from this direction falls within a given range.