textproduct: Reno

KEY MESSAGES

* Very warm and dry weather prevails into the weekend with low chances of showers and isolated storms in the afternoons.

* Hotter conditions are expected next week, resulting in moderate to major HeatRisk.

DISCUSSION

A very warm and dry pattern will remain in place through at least the next week, if not longer. Temperatures steadily warm as we head into the weekend when daytime highs are slated to be in the mid-80s to mid-90s areawide. While most areas stay dry, a low chance (15% or less) of isolated showers and storms will exist in Mono County this afternoon and again Friday afternoon. The weekend features better potential for afternoon showers and thunderstorms as weak low pressure and attendant synoptic ascent overspreads warming surface temperatures, though latest CAM guidance suggests convection will be confined to areas south of US-50.

It's becoming increasingly likely that we'll see our first heatwave of the (meteorological) summer next week as broad high pressure expands across the western states. Daytime highs will flirt the 90F and 100F for Sierra communities and lower NE CA/W NV valleys, respectively, between Monday and Wednesday. Nighttime lows may stay above 65F in lowest western Nevada valleys, providing minimal relief from the heat. These temperatures will promote a moderate (2 out of 4) HeatRisk across many Sierra locales -- including in the Tahoe Basin -- with a major (3 out of 4) HeatRisk expanding in lowest western Nevada valleys. Now is a good time to review your heat safety precautions and to make your plans accordingly!

-Salas

AVIATION

Widespread VFR conditions and typical afternoon breezes prevail into the weekend. KMMH may see isolated showers or perhaps a stray thunderstorm during the afternoons, but odds are 15% or less. Steady warming through the weekend will culminate in well above average temperatures, which may pose density altitude impacts this weekend through the middle of next week. -Salas

REV Watches/Warnings/Advisories

NV...None. CA...None.