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NWS Las Vegas Issues Red Flag Warning for Parts of Nevada

September 12, 2026 · wweather1 editorial · 2 min read

The National Weather Service in Las Vegas has issued a Red Flag Warning for several areas in southern Nevada, effective from 11:00 AM to midnight PDT on September 12 due to wind and low humidity.

The National Weather Service Las Vegas NV announced the warning at 4:27 AM PDT on September 12. The alert is scheduled to begin at 11:00 AM PDT and remain in effect until midnight PDT tonight, concluding at 12:00 AM PDT on September 13.

The affected areas include Nevada Fire Weather Zones 460, 462, 463, 464, and 465. Specific regions covered by the warning are Esmeralda and Nye County Deserts/CNC Dispatch, Nye County Deserts/Las Vegas Dispatch, Sheep Range, Spring Mountains, and Clark and SW Lincoln County Deserts/Las Vegas Dispatch.

According to the weather service, south winds of 15 to 25 mph are expected, with gusts reaching up to 35 mph. Relative humidity levels are projected to drop between 5 and 20 percent.

These weather conditions mean that any fires that develop will spread rapidly. Outdoor burning is not recommended while the Red Flag Warning remains active.

Why it is dangerous and what to do

⚠️ Safety
• Follow all local fire restrictions.
• Avoid any activities that could cause sparks.
• Refrain from outdoor burning.
• Advise appropriate officials and field fire crews of the Red Flag Warning.
📊 The numbers, from wweather1 data
Las Vegas: now +29°, Clear.
That is 6° above the September climate norm.
The record for this date is +41° (2021).
Three-day forecast: 12 September: +40°/+29° · 13 September: +38°/+26° · 14 September: +37°/+26°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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