Vernal

The vernal equinox occurred on Monday, but because North Dakota and northern Minnesota is located north of 45° North latitude, it will be in the next 10 days when the shadows at solar noon will begin to be shorter than the objects projecting them.  This impacts the amount of solar radiation received on the surface and is in most springs the key to the beginning of our snow melt, but this year of course, that mostly occurred in February.  With the ground bare in many locations and little snow foreseen in the next several days, the exposed soil will be primed for the slow spring increase in temperatures that will eventually get Plant 17 starting.

Daryl Ritchison