Latest RAMSIS showing echos near Death Valley and over west NV as well as some convection over the Central Owens Valley. This seems to be moving Northward.   At the moment, skies are mostly Sunny over Mammoth at 9:30am Saturday. Also of note there are some radar returns over the San Joaquin Valley approaching Fresno. All of this is associated with the weak upper low off the SC coast which will get ejected into California later today.

On Sunday a strong trof for September moves into the the west bringing drier air and strong gusty winds as well as cooler temps.

Expect highs in Mammoth today in the low 70s then mid 60s Sunday. A light frost may occur in Mammoth Monday AM.

For the last week of September it will be Sunny and warm under a pretty toasty upper ridge.  Expect highs in the mid 70s by Tuesday into Thursday or Friday. The next change will be yet another upper trof moving into the west coast about the 2nd of October.  The models are quite a bit different on the handling of the upper trof…..and so more time is needed for the wx forecast for the end of the week.  Hilary is still very much a wild card at this time…..

Dr Howard and the Dweebs……………………….:-)

Reference Glossary of Weather Terms
Disclaimer: I have been a hobbyist meteorologist for over 30 years here in the Mammoth area and I do this for my personal enjoyment. The National Weather Service saves lives every day . . . I do not. When making important planning decisions please use information provided by the National Weather Service as they are the most knowledgeable and accurate information source available today.