There are over 100 types of clouds, according to the World Meteorological Organization’s International Cloud Atlas. Whether it was unusual clouds that appeared over Grantham in 1829, or a sign from the heavens, something strange was in the air as the sky over the town was transformed into something never before seen .
“On Tuesday evening the 6th instant the inhabitants of Grantham were agitated by a very extraordinary appearance in the heavens: about half-past seven o’clock the Eastern and Western parts of the horizon seemed as two prodigious columns of fire issuing from immense volcanoes; the clouds were extremely disturbed, and the rack, riding in opposite directions, portended an elementary war. The vane and steeple of the church were quite illuminated; and the effect produced upon the houses in the town (principally of brick) is scarcely to be described: they reflected a strong fiery red, and appeared as if viewed through one of Claude Lorraine’s glasses of that color. During the time of the curious appearance, which was nearly half an hour, the air was particularly close and warm: a considerable degree of anxiety was depicted upon the countenances of all who viewed the phenomenon, and in the impression of religious awe which the mind received, the beautiful idea of the Royal Psalmist was strongly enforced, wherein he describes the Supreme as “riding on the wings of the winds and directing the storm!” The unusual appearance had vanished by eight o’clock, but in the mind’s eye of those who had sensibly beheld it, left a trace which will long continue.”
Stamford Mercury, 16th August, 1811.