Strong to severe thunderstorms will be possible, across the Brazos Valley, Saturday afternoon and evening. Winds in excess of 40-60mph are the main concern, within the strongest activity. An isolated, brief tornado threat cannot be ruled out. Heavy rainfall between 1" and 3" has the potential to cause localized flash flooding in a few locations.
MIAMI -- Forecasters say Isaac has strengthened into a Category 1 hurricane with 75 mph winds as it makes its way toward Louisiana.
The U.S. National Hurricane Center said Tuesday that Isaac gained strength as it moved over the warm, open waters of the Gulf of Mexico.
Isaac is expected to make landfall over southeastern Louisiana, possibly the New Orleans area, either late Tuesday or early Wednesday.