3:00 p.m. EDT Tuesday:
According to Bloomsberg, Isaac has now shut down 93 percent of oil output and 67 percent of natural gas output in the Gulf of Mexico.
As Isaac impacts the Gulf of Mexico, oil and gas companies have evacuated workers and shut down production.
Isaac's disruption of oil production makes oil and gas prices uncertain. One factor that could make the prices rise is the limited supply with Gulf oil production shutting down. The price of oil could drop, however, if the United States government releases oil from the Strategic Petroleum Reserve.
Based on Bureau of Safety and Environment Enforcement (BSEE) data from offshore operator reports submitted Sunday morning, one in 10 oils rigs and around one in 20 manned oil platforms evacuated workers.
Estimates from the BSEE Sunday had around a quarter of oil production closed in the Gulf of Mexico. Isaac halted less than 10 percent of natural gas production so far.
Map of oil rigs and platforms in the Gulf of Mexico in 2008 from GeoCommons.com. The map was produced and published by William Benjamin.
Snow will swing across parts of the central and northern Plains to the Upper Midwest as November ends and December begins.
As millions head home from their Thanksgiving ventures the weather may cause trouble on the roads and at the airports from the southern Appalachians to the central Rockies on Sunday.
The reprieve from heavy rain across southern India will not last with the threat for flooding downpours set to return for the final days of November.
The first widespread ice storm of the season will slowly diminish over parts of the southern and central Plains, but areas of slippery travel will continue into Sunday morning.
An active storm track across northern Europe will bring more wind and rain across Germany into the new week.
Several days of heavy rain will bring the potential for significant flooding from the southern Plains to the middle Mississippi Valley into early next week.
Tropical Storm Karen brought wind and flooding rains to western Cuba.
Pillar Point, CA (1991)
68-mph winds on the Pacific shore near San Francisco.
Havre, MT (1896)
Minus 51 degrees.