textproduct: Reno

KEY MESSAGES

* Hot and dry conditions through the rest of the week, with a warming trend bringing triple digit heat to the lower valleys by this weekend.

* Nearby fires producing smoke may reduce air quality and bring impacts to sensitive groups.

* At this time, there is no precipitation anticipated the next 7 days.

DISCUSSION

Dry, southwest flow continues across the region this week. This is due to high pressure over the Four Corners and a long-wave trough off the Pacific Northwest coast. High pressure will gradually move west and strengthen Wednesday through late Saturday. As such, afternoon temperatures will gradually trend upward into the weekend. Well see the typical afternoon breezes each day with gusts of 20-25 mph. We may also see smoke filter into northern Washoe and northeast CA due to fires in ID and OR.

Latest guidance indicates a slower warming trend, with temperatures hitting the triple digits for lower valleys now by Thursday, leading to widespread Moderate HeatRisk. From Friday into Sunday, temperatures between 100-105 degrees are likely (>80% chance) in the lower elevations of Mono County, eastern Lassen County, and for much of the inner basin and range. These aforementioned areas will experience Major HeatRisk during this timeframe. Other areas in western NV will also approach triple digit heat, with 80s to low 90s for the eastern Sierra communities. One good aspect of the upcoming heat is that due to the dry airmass in place, well see efficient cooling at night which will help us with heat-related concerns.

Ensembles are showing that this ridge will breakdown on Sunday and Monday. At this time, the most this will do is a slight decrease in temperatures, slight increase in winds, and no precipitation. Another ridge builds back into the region by around Tuesday, with a continuation of hot, dry weather.

REV Watches/Warnings/Advisories

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