What are the impacts of a drought?
Lack of rainfall for an extended period of time can bring farmers and metropolitan areas to their knees. It does not take very long; in some locations of the country, a few rain-free weeks can spread panic and affect crops. Before long, we are told to stop washing our cars, cease watering the grass, and take other water conservation steps. In this situation, sunny weather is not always the best weather.
Here in the desert Southwest, weeks without rain are not uncommon. However, when the weeks turn to months, serious problems can arise. Because of the fact that much of our drinking water comes from snowmelt, a dry winter can have serious implications in terms of how much water is available for the following summer season. Most locations have sufficient water reservoirs to make it through one dry winter. The real problem becomes back to back dry winter seasons, similar to what is occurring during the 1998-2000 period of time. With two significantly below-normal precipitation winter seasons, reservoirs are becoming low and the fire danger rises as the forests dry out. However, summer rains can alleviate the situation, as the monsoon season typically develops by July.
The Dust Bowl days of the 1930's affected 50,000,000 acres of land, rendering farmers helpless. In the 1950's, the Great Plains suffered a severe water shortage when several years went by with rainfall well below normal. Crop yields failed and the water supply fell. California suffered a severe drought around 1970. Rainfall was below normal for 1 1/2 years, and by the time September 1970 arrived, the fire potential was extremely high and dangerous. Temperatures rose to near the century mark and fires broke out. Losses were in the tens of millions of dollars.
The worst drought in 50 years affected at least 35 states during the long hot summer of 1988. In some areas the lack of rainfall dated back to 1984. In 1988, rainfall totals over the Midwest, Northern Plains, and the Rockies were 50-85% below normal. Crops and livestock died and some areas became desert. Forest fires began over the Northwest and by autumn, 4,100,000 acres had been burned. A government policy called "Let Burn" was in effect for Yellowstone National Park. The result? Half of the park--2,100,000 acres were charred when a huge forest fire developed.