Pick one, even if your name isn't carl (-:
Actually, I see a handful of good ones but I'll stick with my specialty............extreme weather, today at least.
During Christmas 1927, heavy snow fell in the Cotswolds in central England, where the Thames has its source. A sudden thaw occurred over the New Year's Eve of 1928, followed by unusually heavy rain, doubling the volume of water coming down the river. The sudden rise in water level coincided with a high spring tide and a storm surge caused by a major extra-tropical cyclone in the North Sea. The storm surge raised the water levels in the Thames Estuary, measured at Southend, to 1.5 metres (4 ft) above normal.
The funnelling of the water further up the river caused its level to rise even higher. The situation was worsened by capital dredging which had been carried out between 1909 and 1928, deepening the river channel by about 2 metres (6 ft) to allow access for deeper-draught-ed vessels to the Port of London. This had the side-effect of making it easier for sea water to flow up the Thames on a high tide, increasing the flow on a mean tide by about 4% and raising the tidal range by about 0.7 metres (2 ft).
This produced the highest water levels ever recorded in the Thames in London. The flood peaked at about 1:30am on 7 January when a level of 5.55 metres (18 ft 3 in) above the datum line was recorded, nearly a foot higher than the previous record.
1904 – The distress signal "CQD" is established only to be replaced two years later by "SOS".
A brilliant change. I'm sure anyone reading this knows the Morse code for SOS is dot dot dot dash dash dash dot dot dot.
Wonder how many of us would remember the code for CQD : dash dot dash dot dash dash dot dash dash dot dot.
Nice pick carl!
Before January 7th slips by, how about these interesting ones: