 78 in Manassas, 79 in Metro Center, 80 degrees in Frederick, and 78 outside the WTOP studios, brought to you by Mervis Diamond Importers. The diamonds at Mervis come from the mines in Africa. The best quality and value are at Mervis Diamond Importers. Coming up on WTOP, bracing for hurricane or tropical storm barrel. That remains to be seen. More news in 30 seconds.