These are 5 position alpha-numeric codes comprising the d series. All other level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association).
Alaska: Although Alaska enjoys a high volume of aurora activity, its cruises are not often mentioned as northern lights cruises. During the Alaska cruise season, it's rarely dark enough for the lights to be visible.
Long-exposure photo of the Aurora Borealis in Alaska. Northern Lights over Tromsoe, TromsÃ¸ Northern. Norway there is no guarantee to see The Northern, lights even if you are in the best. Areas, however a bit of planning will radically increase your. [chances] 1 in, short good periods are between Late september and Late. marchn times of high solar activity (more on that later), the Lights may be seen in North America at latitudes as low as 35 degrees north, the time to see the lights is 6pm to 1am meaning that all but the southernmost parts of the United States may get a display.