This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Friday. A day for equations ala the mystical Pi, Albert Einstein — and of course, Utah's weather forecast for a warm, dry weekend.

The world's math geeks celebrated "Pi Day," using the numerical date (3-14) as an excuse to increase personal mass through pie gluttony — with a tip of the fork to the ratio of a circle's circumference to its diameter, i.e. 3.1415926535897932384 . . . yada, yada.

Friday also was Einstein's 135th birthday. The author of the Theory of Relativity once opined that the scientific method struggled with the "phenomenological complex" of meteorology: "One need only think of the weather, in which case the prediction even for a few days ahead is impossible."

Al didn't have access to weather satellites, radar and computers, though. They are elements in Utah's weekend forecast formula: A fast-moving weather disturbance, multiplied by high pressure equals warm and dry conditions for the state going into the weekend.

The National Weather Service predicts high temperatures for northern Utah Friday in the low-60s were to give way to the upper-50s on Saturday, and southern Utah expected daytime highs in the 70s.

Throughout the state, fresh air will make for a great outdoors experience. The Utah Division of Air Quality rated all monitoring stations in the "green," or healthy breathing category.

So, take a hike, ride a bike, or just pull out a lawn chair and have a piece of pie while pondering that, when all's said and ciphered, everything is . . . relative.

To further plumb the depths of weather variables specific to the Beehive State, visit the Tribune's weather page at http://sltrib.com/weather.

Twitter: @remims