textproduct: San Joaquin Valley

UPDATE

Updated Aviation Section.

KEY MESSAGES

1. Wind Advisory continues for the Mojave Desert and SLopes through 5 AM Monday.

2. Slight chances for precipitation continue each day over the higher elevations of the region.

3. Warming trend to end this week.

DISCUSSION

The trough that brought some additional rain this weekend is slowly sliding out early this morning as a few more shortwave troughs slide in through the week. These shortwaves keep slight chance of rain every day over the higher elevations with a 5 to 15 percent chance of thunderstorms. The Valley has no precipitation forecast for the week as there is less than a 10 percent chance of any accumulation.

A ridge of high pressure slides in Thursday through Saturday and strengthens a little which will help warm temperatures. Friday and Saturday have a 25 to 55 percent chance of highs of at least 90 degrees in the Valley. However, another trough slides in Sunday into next Monday bringing cooler temperatures and the next best chance of rain. The CPC has a 33 to 40 percent chance of above average temperatures and a 40 to 50 percent chance of above average precipitation in both the 6-10 and 8-14 day outlooks.

AVIATION

IFR to MVFR conditions over the Sierra Nevada from 18Z Monday through 00Z Tuesday in showers and possible thunderstorms this afternoon. Otherwise, VFR conditions will prevail for the next 24 hours. Winds of 15 to 25 mph in the Mojave Slopes and Desert through 12Z Monday with gusts up to 55 mph.

AIR QUALITY ISSUES

None.

CERTAINTY

The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is medium.

Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES

Wind Advisory until 5 AM PDT early this morning for CAZ337>339.