Weather: Spring arrives, but warmer temps delayed en route

Spring sprang with a whinge as Ottawa awoke to a windchill of -18 Tuesday morning.
But warmer days are on the way.
By Tuesday afternoon, expect sunshine, a high of 0 C and a UV index – remember those? – of 3, or moderate.
The spring equinox – “equal night” – is when most of the world gets about 12 hours of day and night. Environment Canada explains that the equinox, which is at 12:15 p.m.Tuesday  in Ottawa, is the moment when the sun p