National Weather Service United States Department of Commerce

Based on the common patterns of the subtropical ridge, meteorologists at the National Weather Service Forecast Office in Ruskin, FL identified eight wind patterns or "Flow Regimes" and produced high resolution spatial and temporal probability of precipitation (PoP) climatologies for each across the Southeast United States, spanning the years 2002-2019.

This page defines the regimes and gives the graphics of the probability of precipitation ≥ 0.01 inch for the NWS Tampa Bay County Warning Area. Once you know what the regime is for the day you're interested in click on the tab for that regime.

  Cumulonimbus over southern Pinellas County

Most images on this page can be magnified by clicking, and resized back to original size with a second click.