Mammoth Mountain Weather Forecast & Discussion

Saturday, April 8th, 2023 @ 10 AM – Good morning, the endless winter storm train will now come to an end. As we enter the mid-April time period expect the typical roller coaster ride of going from high pressure to weak troughing in the area.

That type of pattern brings periods of warm weather with light winds and then windy cooler weather with scattered snow showers that are sometimes mixed in.

Over the next few days expect clear skies with high-pressure building into the area and peaking on Sunday and Monday. Mammoth Mountain will get into the low to mid-50s with upper 50s in Mammoth Lakes. Down in Round Valley and the Bishop area highs will be in the low to mid-70s.

By the middle of next week, the high will have weakened and moved to our east. That will open the door to a hybrid inside slider that will come right down the spine of the Sierra.

The result for the area will be temperatures dropping about 10 degrees along with some moderate to gusty winds on Wednesday into Friday. There will also be a slight chance of snow showers next Thursday.

Beyond that time frame the next ridge builds in earnest by late next weekend offering up some very nice spring into early the following week.

NWS Forecast for the 9000 foot elevation level from Mammoth Mountain down to South Lake.
NWS Forecast for the 9000 foot elevation level from Mammoth Mountain down to South Lake.
NWS Forecast for Round Valley, Mill Pond and Bishop
NWS Forecast for Round Valley, Mill Pond and Bishop

 

West Coast and Eastern Pacific Satellite View
West Coast and Eastern Pacific Satellite View

4-8-23 @ 9 AM – All Fresh Weather Data Below


14-km EPS Global North America 500 hPa Height Anom
0- 16 Day - EPS 500 Height Anomaly
9-km ECMWF Global Pressure North Pacific 300 hPa Wind
Jet Stream Wind Speeds at 300 hPa
GEFS High Anopmply Chart February 27th to March 21st
GEFS High Anopmply Chart February 27th to March 21st

Long Range Seasonal ECM Model from Early March – Next run on this Model is May 3rd

ENSO Outlook – Updated on April 3rd
El Nino Forecast - Mammoth Weather

Mammoth Mountain and Eastern Sierra Weather Posts