Forecasted upper winds and temperatures can be found here. These are computer projections, not actual measured conditions. The closest one to Grand Bend is the 15th on the list, with the abbreviation “ECK”. This is in Peck, Michigan which is west of Grand Bend. To interpret these figures, note that the columns are for 3000′, 6000′, 9000′,etc. In each column is a four digit number. The first two digits are the wind direction. For example, “27” is 270 degrees, meaning a west wind at that altitude. The next two digits are the wind strength in knots. A knot = 1.16 miles per hour. So for example the code ” 3025″ would mean a northwest wind (300 degrees) at 29 mph (25 knots). Following the 4-digit code in each column except for the 3000′ one is the forecasted temperature in Celcius degrees at that altitude.