Tropical Storm Issac is expected to become a Hurricane by tonight, and as it passes by the Republican National Convention in Tampa, Isaac’s projected track shows the storm making landfall on the Gulf Coast and affecting the Midwest. As of Monday morning, Pennsylvania remained well outside the expected cone of probability, but the storm could provide some much needed drought relief in the southern and Midwestern regions of the U.S.

A year ago, another “I” storm, Irene, was wreaking havoc in Pennsylvania. That storm brought high winds and flooding to the Commonwealth as it ambled up the East Coast, knocking out power and prompting coastal evacuations.

Two more tropical disturbances in the Atlantic are currently being monitored by the National Hurricane Center.