4:15PM 4/6/2023

New Update from DWP on the Snow Course Survey.

The snow course is an average of 10 points over about 100 yards (one of which is next to the snow pillow) and the average of those 10 points is 104.7 inches of SWE. 

Comment:   So for the record, the update says, that the Mammoth Pass receievd an average of 104.7 inches of water.  

That is now, 17% greater than the Winter of 1969, the previous greatest water year on record!


Today, Thursday is a milder day. There will a be storm that will move into Northern CA and the Pacific NW Tonight and Friday. Wind and Clouds are slated for Mono County and a chance for some light showers Friday morning. Saturday will begin a warming trend into Monday as a warm upper ridge builds over the Great Basin and Rockies. Freezing levels rise to 12,000 Sunday night at the peak of the warming. Snow melt will provide some local pooling of water on Old Mammoth Rd and Mid-Town. Some minor flooding is possible over the lower elevations of Mono County, mainly below 7000 feet. Highs in Mammoth may climb to the low 50s Sunday and Monday.
Again, the Dweebs are emphasizing to locals to locate their Propane Registers now and shut off switches, on their buildings. Make sure they are clear of the snow and ice above them. A Rapid thaw is possible this weekend into early next week. Any heavy snow and ice dams above registers will be a hazard.


Longer Range:
The weather next week beginning Tuesday into next week looks breezy/windy and cooler. Slight chance of showers Wednesday night into Friday. The CFS and EURO model trends in the longer-range show cooler than normal weather the remainder of April.

Interseasonal thoughts:
Considering the snowpack is at record levels, The monsoon season here in the Sierra is likely to be delayed this Summer and may not materialize at all. It will take well into August to melt the current snowpack over and near the Sierra Crest. Snow cover affects both local temperatures and convection. Our early Summer may be cooler than normal.

El Nino is expected to build well into the Fall. SSTA’s are expected to be exceptionally above normal over the far Eastern Pacific this Fall. A bigger hurricane season is possible for the Tropical Eastern Pacific and weaker than normal hurricane season is expected for the Gulf of Mexico and the Western Atlantic.


Dr Howard and the Dweebs……………..:-)