Messages
Isolated to scattered storms continue for the next several days with greatest coverage north and east of Las Vegas.
Near-normal high temperatures persist with warm overnight lows thanks to monsoon moisture.
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.
Revised in 3 passages since the 12:09 PM discussion. See every revision.
Discussion
Looks like a rinse-and-repeat forecast over the next several days in terms of monsoon convection. Moisture stays in place with precipitable water staying in the 1.25"-1.60" range, which is supportive of showers/storms each day. However, as is often the case in the monsoon, it is best to take a day-by-day approach as lingering morning convection and cloud debris can suppress the afternoon environment in spots. Generally speaking, the favored initiation points will be the mountains/plateaus of southeastern NV, northwestern AZ, and eastern San Bernardino County as this is where the best overlap of moisture and orographic lift exists. During the late afternoon and evening, storms may move into the valleys, but this is far from a guarantee in places like Las Vegas and the lower Colorado River Valley. Main thunderstorm hazards will be flash flooding and strong outflow winds, which can travel far from their parent storm.
On the temperature side, expecting highs to remain with ~5 degrees of climatology throughout the forecast period. Those lucky enough to get precipitation in the early afternoon will likely end up below normal, while places farther west are expected remain near or slightly above normal thanks to less cloud/precipitation coverage. On the other hand, all of this moisture and convective cloud debris will tend to keep overnight lows on the warm side with values 5-12 degrees above normal. On top of that, it'll feel rather muggy for Desert Southwest standards. HeatRisk largely remains in the Moderate Category (level 2 of 4).
This is the plain-text edition, decoded without AI so it loads anywhere. The full Plaincast experience — plain-English summaries beside the annotated original, with the forecast changelog — loads automatically with JavaScript, or open the interactive edition.