Uncertainty is the word of the day for hurricane forecasters on Sept. 4.

Three separate systems – two in the Pacific and one in the Atlantic – are perplexing forecasters and the computer models they use to predict storms, with no clear answers to where the storms will go and how much of a danger they could be.

The onslaught of storms comes against the backdrop of the typical peak of the hurricane season, which is Sept. 10.

The most immediate threat is Tropical Storm (formerly Hurricane) Lorena in the Pacific, which although weakening could bring a flood threat to the Southwest U.S. over the next few days.

Lorena will likely come ashore in Mexico later Sept. 5 as a disintegrated, post-tropical depression, according to Houston-based meteorologist Matt Lanza in a Substack post. After that, the storm's potential impact in the flood-prone Desert Southwest U.S. remains cloudy: