Showers and thunderstorms capable of producing widespread heavy rainfall will be possible across much of Puerto Rico today. Heavy rainfall will likely lead to flash, urban and small stream flooding. Some areas may face life-threatening flooding. In the Southeast U.S., strong to marginally severe thunderstorms will be possible this afternoon. Read More >
Saturated geostrophic potential vorticity is a quantity that allows one to assess both upright potential instability and slantwise instability in a saturated environment (e.g., Bennetts and Hoskins 1979; McCann 1995; Nicosia and Grumm 1999).
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