Today’s Mammoth Weather Story: A strong ridge of high pressure has moved a bit to the east of the area and will continue that trek today, allowing some cooling into Monday.

Meanwhile, off the Southern California coast, a weak cut-off low-pressure system will remain for most of the upcoming week. The third player in today’s weather story is the next high-pressure system, which will kick in warm to hot temperatures by midweek.

The good news on the next ridge is that temperatures for the lower elevations will be about 5 degrees less at the peak of this ridge vs the last one.

That cut-off low looks to be in the perfect position to inject some moisture into the area. After a clear day on Monday, buildups and thunderstorms in the 20-40% range will be back by midweek.

The next high-pressure system moving in will exit the area later on Thursday, bringing a cooler weekend for June 15th and 16th.

MSLP GIF out 10 Days – The gray you see over the Sierra on the GIF below indicates build-ups and thunderstorm chances all week long in the range of 20-30%. QPF amounts are in the .10 – .20 range under any of the larger storms that due happen to form.

MSLP = The mean sea-level pressure (MSLP) is the atmospheric pressure at the mean sea level. This is the atmospheric pressure usually given in weather reports on radio, television, newspapers, or the Internet.

15-Day ECM 500mb Anomaly GIF: This is the the full 15 day run of the ECMWF Ensemble model. I find this solution is right more often then not compered to the other models. Been using the Euro version since Howard taught me this was the model to look at back in the early 90s. Until about a year ago you had to pay to get access to the ECMWF.

Temperature Anomaly GIF: Over the next ten days, we start out cooling off and quickly head back to warm to HOT by midweek and then cool a bit to just above average by next weekend.

*The term temperature anomaly means a departure from a reference value or long-term average. A positive anomaly indicates that the observed temperature was warmer than the reference value, while a negative anomaly indicates that the observed temperature was cooler than the reference value.

The Wind Forecast GIF – Looking at the National Blend of Models wind forecast, wind speeds over the next week will be gusty during the afternoon and early evening hours. That’s when you can expect SW winds at 10-25 MPH over the high country and wind-prone areas of the Eastern Sierra.