What has changed
Updated Aviation section for the 06Z airport forecasts.
Plaincast — the National Weather Service forecast, decoded into plain English
What is an Area Forecast Discussion?
Area Forecast Discussions are the real forecasts, written 3 to 4 times daily by NWS meteorologists reading the models and interpreting what they mean for your area. They offer far deeper insight than any weather app, but they're written in dense meteorological shorthand. Plaincast uses Anthropic's Claude to summarize them into plain English, side by side with the annotated original.
Plaincast decodes the National Weather Service's Area Forecast Discussion — the real forecast, written 3 to 4 times a day by the meteorologist on shift — into plain English. The discussion is where a forecaster explains their reasoning: which models disagree, what they are watching, and how confident they are. Below is the current edition for Philadelphia, with its shorthand expanded. The full experience — an AI plain-English summary beside the annotated original — loads with JavaScript, and every one of the 68 forecast offices has its own edition.
Messages
A drier airmass spreads into the region this afternoon.
Fair weather is expected to return later Sunday and should persist into the middle of the upcoming week.
This is the plain-text edition, decoded without AI so it loads anywhere. Read the whole Philadelphia discussion at /o/PHI/, see what changed since the last one, or open The National Desk for where the weather is today.