Excessive Heat — Carquinez Strait and Delta, California

2024-07-02 to 2024-07-07 · Carquinez Strait and Delta, California

Event narrative

Dangerously hot daytime high temperatures of up to 95 to 110 degrees were observed from July 2nd through July 7th. Overnight low temperatures around the 55 to 70 degree range were observed over the same timeframe.

Wider weather episode

A long-duration heat event brought dangerously hot conditions with widespread Major to Extreme HeatRisk to interior Northern California over the first two weeks of July. Multiple temperature records were broken or tied over this timeframe. The Sacramento County Coroner reported two fatalities due to the extreme heat, one on July 6th and one on July 7th. Temperatures cooled slightly for a brief period in the Southern Sacramento Valley, Delta and Carquinez Straight, and Northern San Joaquin Valley on July 8th and 9th, but conditions were still hot, before ramping up again on July 10th.

Source: NOAA Storm Events Database, event_id 1193272. Narrative written by the NWS forecast office that issued the report.