Archived Clear Sky Chart Images
for Northern Prairie Star Party, (AB)

A Sponsored Feature

Each day lists the local time, hh:mm in 24h time, that is the starting hour of a past clear sky chart. Each clear sky chart forecasts a few days into the future. There are at least two clear sky chart updates per day. So there are multiple overlapping forecasts for each day.

February
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	18 02:00 14:00 22:00	19 10:00 22:00 +3 charts from previous days	20 10:00 +5 charts from previous days	21 17:00 21:00 +6 charts from previous days	22 10:00 22:00 +8 charts from previous days	23 10:00 22:00 +10 charts from previous days
24 10:00 22:00 +12 charts from previous days	25 10:00 22:00 +14 charts from previous days	26 10:00 22:00 +14 charts from previous days	27 10:00 22:00 +14 charts from previous days	28 10:00 22:00 +14 charts from previous days
March
Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1 10:00 22:00 +15 charts from previous days	2 10:00 22:00 +15 charts from previous days
3 10:00 22:00 +15 charts from previous days	4 10:00 +15 charts from previous days	5 02:00 10:00 21:00 +14 charts from previous days	6 10:00 +15 charts from previous days	7 02:00 10:00 22:00 +14 charts from previous days	8 10:00 22:00 +15 charts from previous days	9 02:00 11:00 +15 charts from previous days
10 07:00 11:00 23:00 +15 charts from previous days	11 03:00 11:00 23:00 +16 charts from previous days	12 03:00 11:00 +17 charts from previous days	13 03:00 11:00 23:00 +17 charts from previous days	14 11:00 +18 charts from previous days	15 03:00 11:00 23:00 +17 charts from previous days	16 11:00 23:00 23:00 +18 charts from previous days
17 11:00 23:00 23:00 +18 charts from previous days	18 11:00 23:00 +19 charts from previous days	19 11:00 23:00 +18 charts from previous days	20 +17 charts from previous days

Instead of the last few past clear sky chart images, some people prefer long-term averages of forecasts. See the Forecast History/Climate page.