As the saying goes, no two snowflakes are exactly alike. Russian photographer Alexey Kljatov's collection of high-resolution magnified flakes makes this widely-held belief more convincing.
The Moscow-based photographer captured dozens of structurally diverse snowflakes, showcasing the complexity of each one against a dull backdrop.
"This year I planned to save current temperature and relative humidity, taken from weather sites with all shooting sessions, but previously I [didn't] do that."
Shooting at a variety of different conditions is critical to Kljatov's work, as snowflakes form into different shapes depending on temperature and humidity at the time of their formation.
"Snowflakes are merely ice crystals whose shape are determined by the organization the water molecules are in when they freeze," according to AccuWeather.com Meteorologist Erik Pindrock.
"Temperature can greatly influence them," Pindrock said.
According to Kenneth G. Libbrecht, professor of physics at the California Institute of Technology, "snow crystals tend to form simpler shapes when the humidity (supersaturation) is low, while more complex shapes at higher humidities."
Dendrites, the common six-armed shape, form at temperatures between 3 and 10 degrees Fahrenheit.
Hollow columns form at 14 to 21 F and needles form at 21 to 25 F.
"It is even possible for a single snowflakes to be a combination of shapes as it moves into different temperatures within a cloud," Pindrock said.
"But with so many variables to influence a single snowflake's design and shape, it is highly unlikely that two large snowflakes would turn out exactly the same."
Two dozen people have died in West Virginia as a result of extreme flooding that inundated portions of the state on Thursday.
Another round of sizzling heat threatens to aggravate the ongoing wildfire situation across the southwestern United States through early week.
As the Northeast further dries out amid another rain-free weekend, residents may be wondering if this is a sign of things to come for July.
The next round of thunderstorm downpours will swing into the Appalachians with the risk of isolated flash flooding on Monday.
With the start of summer comes more time traveling and the unfortunate mess some items will leave if left baking in a hot car.
Showers threaten to cause delays on a nearly daily basis next week at the 2016 Wimbledon Championships.
Weatherford, TX (1980)
119 degrees -- highest temperature in Texas during a very hot year.
Phoenix, AZ (1990)
All-time record high of 122 degrees (old record for date was 116 set in 1979).
Aroostook Co., ME (1991)
One-half inch diameter hail.