As the final hours of May 2007 countdown the rainfall deficit for the month is approaching three inches. After ample rains in March and April, the month of May has produced just .94″ of rain through the 30th at our official National Weather Service observing station at BWI-Marshall. Normal rain for the month is 3.89″. There is hope for some moisture, however, as we head into June. Hot, humid conditions may lead to a few pop-up thunderstorms through the weekend and then, perhaps, a more significant rain will spread north from the gulf of Mexico. Satellite pictures show a developing area of low pressure near the Yucatan peninsula. This system has a chance to take on tropical-like characteristics as it moves north across the gulf of Mexico this weekend. Some computer models bring this storm onshore near Pensacola, FL Sunday morning. From there the system has a chance to spread significant rain north into the mid Atlantic states Sunday night and Monday. The track of the storm is uncertain at this time and if it stays farther east, as some computer models are indicating, our chance for significant rain will diminish. Something to watch over the next few days.