Heat — South End of the Lower Sierra, California

2023-07-21 to 2023-07-23 · South End of the Lower Sierra, California

Event narrative

Daytime highs ranged between 98 and 103 degrees on July 21 and between 100 and 105 degrees on July 22 and 23.

Wider weather episode

A large area of upper high pressure strengthened over the Desert Southwest region on July 21 and brought a period of dangerous heat to much of the area between July 21 and July 23. The ridge weakened by July 24 which allowed for a slight cooling trend to take place by July 25. Although temperatures remained above daily climatological normals for several days afterwards, temperatures remained below dangerous heat levels.

Source: NOAA Storm Events Database, event_id 1104081. Narrative written by the NWS forecast office that issued the report.