In an effort to break down the long list of terms you may see in my discussions or in the discussions of others, here is a list of the terms you will find usedwhen talking about the National Weather Service. I hope to add the complete list of Watches/Warnings in here as well at some point.
AFD: Area Forecast Discussion. A product issued twice a day by the National Weather Service that gives a technical summary of the weather to come. Useful for weather geeks, not so much for everyone else.
FROPA: Frontal Passage. Used as shorthand especially by the NWS to convey the passage of any type of front.
NWS: National Weather Service. The official issuer of watches/warnings/advisories etc. ALWAYS consult with the NWS forecast to make important decisions and to get the best possible forecast.
WFO: Warning Forecast Office. Local NWS subsidiaries that provide forecasts for specific locations as well as issue warnings for their CWA (County warning area)