Climate change adds variables to monsoon forecasting; Upgrades coming to Phoenix-Mesa Airport; Why people licked the wall at this restaurant

A look at some of today's top stories, the weather forecast and a peek back in history.

The monsoon season starts officially across the Southwest on Wednesday. But even as it unfolds, what that will mean for Arizona this year is still pretty much anyone's guess.

Future terminal upgrades, a new air traffic control tower and new restaurants are among the improvements coming to Phoenix-Mesa Gateway Airport.

Photos and videos of customers licking a Himalayan salt block wall went viral. The restaurant, The Mission, is now selling salt blocks to go.

Today, you can expect it to be hot, with a high near 105 degrees. Mainly clear and very warm at night, with a low near 81 degrees. Get the full forecast here.

For more stories that matter, subscribe to azcentral.com.

Today in history

  • On this date in 1869, the Phoenix Post Office was established.

  • In 1899, John B. “Pie” Allen died in Tucson. Allen was elected to three terms in the Arizona Legislature and served as Territorial Treasurer from 1867 to 1872.

  • In 1965, James Mitchell Barney, Arizona historian and nephew of Col. James Barney who owned the Silver King Mine, died.

  • In 1864, Secretary of War Edwin M. Stanton signed an order establishing a military burial ground which became Arlington National Cemetery in Virginia.

  • In 1944, American forces began their successful invasion of Saipan (sy-PAN’) during World War II. B-29 Superfortresses carried out their first raids on Japan.

This article originally appeared on Arizona Republic: AZ Briefing: Climate change adds variables to monsoon forecasting