A hard rain, hail, lightning and wind deepened the misery of rescue workers searching for victims in the ghastly wreckage.
Rain, hail, lightning and a nearby tornado warning were threatening to delay a round that had already begun four hours late.
But other parts of the country had warnings of a different kind, with forecasters urging people in the north of England and south-east Scotland to prepare for torrential rain with a risk of hail, lightning and strong winds.
The residents of the 100-unit complex used the break in the weather after days of continued rain, hail, lightning and tornado warnings to search for salvageable possessions — a child's favorite toy, a lost wedding ring, the flag that had been draped over a father's coffin.
Problems also are caused by high winds, hail, lightning, blowing sand, a heavy load of snow or ice, flooding, fire, ice-removal chemicals, mechanical injury by garden tools or machinery, and fumes from weed-killing chemicals, trash burners, nearby industrial plants, or motor vehicles.
In his Meteorology, Descartes described his general hypothesis about the nature of matter, before continuing on to provide accounts of vapors, salt, winds, clouds, snow, rain, hail, lightning, the rainbow, coronas, and parhelia.
The study was organized because the details of precipitation, hail and lightning formation within severe storms are still not completely understood, said Dr. Morris Weisman, a scientist with the National Center for Atmospheric Research in Boulder, Colo., who helped coordinate each day's observations.
Nick Faldo, a two-time champion playing for the first time since 1994, was tied with Darren Clarke after 36 holes on a day disrupted for 80 minutes by heavy rain, hail and lightning.
Brian Barnes, a burly Briton accustomed to playing in bad weather, shot a five-under-par 67 yesterday that featured rain, hail and lightning, earning a share of the lead in the $1.1 million Canada Senior Open in Calgary, Alberta.
Thus, it can provide opportunities for forecasting accidents (e.g., hail, typhoons, lightning), foreseeing changes in primary energy and environmental conditions, and allow more time for response planning, material allocation, and the arranging of repair forces.
"We're expecting heavy thundery showers through the weekend with the potential for torrential downpours, large hail, frequent lightning and locally strong gusts," Met Office chief meteorologist Paul Gundersen said.
