Plaincast — the National Weather Service forecast, decoded into plain English

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 Nashville, 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.

Area Forecast Discussion · National Weather Service Nashville (OHX) · issued Friday, September 11 at 6:19 AM CDT.

Messages

Above-normal temperatures continue with highs in the low 90s for most areas through the next seven days.

Medium to high chance for showers and storms through Saturday. Best chances will be Saturday afternoon.

Strongest storms could produce gusty winds and locally heavy rainfall through Saturday.

Short Term

(Tonight through Saturday Night) Issued at 1040 PM CDT Thu Sep 10 2026

A fairly elongated shortwave trough is stretched from the Southern Plains through the eastern Great Lakes. This is gradually approaching Middle Tennessee this evening with an associated surface front just to our northwest. Ahead of the front lies a corridor of moisture and instability supportive of showers and thunderstorms. PWs are up to ~2.0" and afternoon MLCAPE approached 2,500 J/kg earlier today. We also have increasing mid-level flow which is bringing 25-35 knots eff. bulk shear into the area. We've essentially covered the basic ingredients for severe storms and, hence, why we've been covered in a "Marginal Risk" (level 1 of 5) for portions of Middle Tennessee this evening. The good news is storms have decreased in intensity, but additional isolated convection is possible overnight.

Chances for rain and storms will persist through the short-term forecast period as the disturbance aloft will reside in the region through Saturday. This will provide lift for convection that should peak in intensity and coverage Friday and Saturday afternoons with heating. Strongest storms will be capable of strong winds, heavy downpours, and perhaps small hail. Most widespread rain/storm activity is expected Saturday as the shortwave moves directly over the area. Something to keep in mind as we head into the weekend.

This is the plain-text edition, decoded without AI so it loads anywhere. Read the whole Nashville discussion at /o/OHX/, see what changed since the last one, or open The National Desk for where the weather is today.