Weather in Milton gets read from the top of Great Blue Hill, where the observatory has been writing it down since long before anyone here was born. Down below, GForce Snow Services reads it the practical way — by how fast the driveway fills. The work is plowing, shoveling walks and steps, and spreading salt and sand where the slope decides who gets out and who does not. Storms here can arrive as rain, turn over to snow by midnight, and set up like concrete by four in the morning, so the answer is to be moving already. By sunrise the drives are open, the walks are down to pavement, and the hill can keep its records.