Marine Weather and Tide Forecast for Mono City, CA

DISCUSSION

The synoptic pattern features an upper-level ridge building over the Desert Southwest, maintaining a dry southwest flow aloft across the region. This will lead to generally clear to partly cloudy skies and a warming trend through mid-week.

This week, highs are expected in the low-mid 90s for the lower valleys and mid 80s for the Sierra. Afternoon winds will also increase this afternoon, generally from the southwest, with gusts up to 15-20 mph, particularly across northeast California and western Nevada where gusts to around 30 mph are possible.

This weekend we're monitoring the potential gradual eastward shift of the upper-level ridge, allowing a Pacific trough to approach the West Coast by late week. NBM guidance shows an increase in monsoonal moisture streaming northward under the influence of the shifting ridge and approaching Pacific trough.
This will lead to an increase in isolated to scattered shower and thunderstorm chances, particularly for the eastern Sierra, with PoPs generally ranging from 10-30% for Friday through Sunday.

Afternoon winds are also expected to increase again during this period as the upper-level system draws closer to the West Coast.
Temperatures will see a slight cooling trend over the weekend, with highs returning to the upper 80s to low 90s for the valleys and upper 70s to low 80s for the Sierra. Overall, confidence in the general pattern of increasing moisture and convection late week is moderate, with some model divergence in the exact timing and amplitude of the Pacific trough.

-Justin

AVIATION

VFR conditions continue today and throughout this week. Increased westerly winds are expected across northeast CA and far northwest NV this afternoon with gusts up to 25kt. Otherwise, high pressure will keep the region warm and dry this week.

-Justin

REV Watches/Warnings/Advisories
NV...None.
CA...None.