National Weather Service United States Department of Commerce

Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

KBTL Winter Wind Rose KBTL Spring Wind Rose KBTL Summer Wind Rose KBTL 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.