The National Weather Service in Baltimore MD/Washington has issued a Red Flag Warning for the combination of hot, dry, and windy conditions, which is in effect until 7 PM EDT this evening. * TIMING...Until 7 PM EDT this evening. * WINDS...Southwest 10 to 15 mph with frequent gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * FUEL MOISTURE...7 to 8 percent.