The Official Low temperature at the Bishop AP was 74 not 75 degrees as reported earlier this morning by Mammothweather.  However, it was note worthy as the 1st time a 74 overnight low was ever recorded for any date of the year.  The record of 75 degrees still stands for the year 1961 August 4th.


A rather complex weather pattern highlighted by a moist SE flow of Monsoon Moisture/ “air-mass” modification. Much of the moisture is being generated by a disturbance that formed during an easterly wave that became cut off as the upper high shrunk up over Colorado.  The upper low will eventually get picked up and forced to open up over the next 24 hours and carried through NV/AZ. In the meantime , there is plenty of moisture for thunderstorms throughout the deserts/mountains of Southen and south central California.

However, the forecast is complex for the Mammoth area as there is a trof that is deepening north to south through California that will usher in a dryer flow aloft. This may limit rains for the Mammoth area as SW flow increases. The “main” rains may be confined to Eastern Ca Areas along and east of Highway 395 then south through the Southern Sierra and Owens Valley Today and into Saturday.   So although there may be showers and thunder, there is no guarantee of any significant accumulation here in Mammoth today Friday.

Expect highs today in the 70s and lows in the low 50s tonight.  There will be another opportunity for Thunderstorms Saturday PM with added sunshine over Mono County then dry Sunday. Expect more sunshine as we go through the weekend.

The official forecast for the NWS is for Scattered Thunderstorms today/Ngt through Saturday……


The Dweebs are keeping an eye on Tropical system Fabio which is forecast to recurve to the Northwest then north. The moisture may become entrained in an off-shore trof later next week…..toward the weekend of the 20th.


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.