Excessive Heat Watch

Excessive Heat Watch

From 02:54am PDT, May 24 2020 until 07:00pm PDT, May 28 2020

* WHAT...An extended duration of excessively hot daytime temperatures with limited overnight relief. Near record to record temperatures are expected during the peak of the heat.

* WHERE...Entire San Francisco Bay Area and Central Coast regions, excluding the Sonoma coastline and San Mateo Pacific coastline.

* WHEN...From 11AM Monday morning through 7PM Thursday evening. Tuesday and Wednesday are expected to be the hottest days.

* IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for vulnerable populations or those working outdoors during the day. Additional societal impacts due to the movement of people seeking relief from the heat from hotter areas inland.

* ADDITIONAL DETAILS...Widespread 90s to low 100s daytime temperatures are expected for inland areas on the hottest days of Tuesday and Wednesday. The San Francisco Bay shoreline and Santa Cruz coast could rise to the upper 80s to low 90s during these hottest days. For San Francisco itself, the Downtown/Bayside could rise to the low to mid 80s while the Pacific coastal side will peak in the mid 70s. Other coastal areas should remain relatively cooler than surrounding inland areas given light onshore flow (70s to around 80). Significant temperature differences from the coast to a few miles inland could drive an excessive number of persons towards the coast to seek relief from the heat. Individuals are advised to check with local authorities on potential closures of parks and beaches and be aware of any special requirements for visiting such areas. Overnight lows will range from the upper 50s to low 60s which may limit the impact of typical overnight relief in the region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this situation. Be prepared to drink plenty of fluids, stay in an air- conditioned room, stay out of the sun, and check up on relatives and neighbors.

Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.