Most of the U.S. Is Experiencing Record-Low Drought Levels

Frederic J. Brown/AFP/Getty Images
Frederic J. Brown/AFP/Getty Images

This winter, relentlessly wet weather patterns bathed the United States with much-needed water. As a result, drought levels in the United States are at their lowest since Y2K, according to an analysis released by the United States Drought Monitor (USDM). Only 5.4 percent of the country is experiencing drought conditions right now, the lowest level on record since the USDM began a weekly analysis of abnormally dry conditions on January 4, 2000.

The USDM’s job is to measure the severity of a region’s dryness based on data like observed rainfall, soil moisture, streamflow, and water levels in lakes and reservoirs. This precipitation data is categorized on a five-point scale that ranges from “abnormal dryness,” the lowest category, to “exceptional drought”—reserved for the worst and longest-lasting drought conditions.

About 12 percent of the country is experiencing “abnormally dry” conditions, usually indicative of fleeting dryness that can often be remedied with a decent afternoon of soaking rain. The regions still thirsting for water are mostly in the southeastern United States, where widespread severe drought conditions persist over central and southern parts of Florida. The worst drought conditions exist there and over the mountains of northern Georgia, a tiny area that’s seen a rainfall deficit of 8 to 12 inches since last fall. But drought conditions across the rest of the country are largely scattered and limited in both scope and duration.

A major contributing factor to these delightfully low drought levels is California’s incredible reversal in fortunes this past winter. The state endured a devastating, years-long drought that abruptly came to an end after a steady train of storms rolled ashore and produced copious amounts of rain and snow. Much of central and northern parts of California have seen rainfall amounts of 1 to 2 feet above normal over the past six months. The Sierra Nevada mountain range in particular has seen more than 100 inches of snow this season, erasing previous years’ snowfall deficits and building up a significant reserve of meltwater to replenish downstream reservoirs when the warmth of summer takes hold.

Ironically, areas that were too dry not too long ago are now trying to cope with too much rainfall. North Carolina was hit especially hard toward the end of April, when a slow-moving storm system dropped more than 6 inches of rain across some of the most populated parts of the state. The heavy, steady rain mostly erased the state’s rainfall deficit in one weekend, but it also caused some major flooding problems. Raleigh, North Carolina, for example, found itself in a “flash flood emergency” on April 25, 2017, after excessive rains swelled local waterways beyond their banks and threatened homes, businesses, and major thoroughfares. When it comes to rain, as with everything in life, moderation is the goal.

Amazing Timelapse Shows Florida Sky Turning Purple Following Hurricane Dorian

Scott Olson/Getty Images
Scott Olson/Getty Images

Photographs taken of Hurricane Dorian's massive eye and the damage it caused in the Bahamas paint a picture of what it was like to live through the historic storm. But some of the most stunning images to come out of the event were captured after the hurricane had passed. As KENS5 reports, the time-lapse video below shows the sky over Florida turning a unique shade of purple in the wake of Hurricane Dorian.

Dorian skimmed the east side of Florida earlier this week, causing power outages and some flooding. The worst of the storm was over by Wednesday night, but the ominous purple clouds it left behind may have sparked concern among some Florida residents.

A purple sky following a hurricane is the result of a perfectly natural occurrence called scattering. The sky was super-saturated after Dorian arrived, and the moisture in the atmosphere refracted the light of the setting sun. Normally, only the longest wavelengths of light on the color spectrum are visible through the clouds—that's why sunsets often appear gold, pink, and orange.

Violet is the shortest wavelength on the spectrum, which means it's almost never visible in the sky. But the air's high dew point Wednesday night, combined with the dense low-hanging clouds, created the perfect conditions for a rare purple sky.

Locals who've lived through a few hurricanes may have recognized the phenomenon; the same thing happened after Hurricane Michael hit Florida last year.

[h/t KENS5]

See What the Eye of Hurricane Dorian Looks Like From Space

NOAA, Getty Images
NOAA, Getty Images

Hurricane Dorian has already caused damage on the ground, leveling houses and killing at least five people in the Bahamas earlier this week. For people who haven't seen Dorian's power up close, these pictures captured from space put the magnitude of the storm into perspective.

As Live Science reports, the photographs below were taken by European Space Agency astronaut Luca Parmitano aboard the International Space Station. They show the hurricane swirling over the Atlantic, its massive eye in clear view.

The storm has grown even more intense since it was photographed from space. According to a tweet from Parmitano on September 1, the pictures show Dorian as a tropical storm. By the time the system reached the Bahamas on Monday, September 2, it had upgraded to Category 5 hurricane with winds exceeding 185 mph. Dorian has since weakened to a Category 3, but that's still strong enough to cause significant destruction if it makes landfall over the U.S.

After preparing for a direct hit all week, it looks as though the southern U.S. may be spared from the worst of the storm. Projections now show Dorian hugging the Atlantic coast, starting off the coast of Florida and skimming Georgia, South Carolina, and North Carolina. The hurricane is still likely to drive powerful winds and storm surges along the east coast, so local governments are urging residents to take any necessary precautions and be prepared to evacuate if the order is given.

[h/t Live Science]

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