San Diego

Excessive heat persists through midweek before temps cool toward weekend

A Heat Advisory and Excessive Heat Warning will take impact in San Diego as temps soar to 10 to fifteen levels above regular.

Evan Noorani (KFMB), Karlene Chavis, News 8 Weather Team

3:50 PM PDT April 2, 2019

5:52 AM PDT September 26, 2022

SAN DIEGO — It was a scorching weekend and temperatures will stay on an upward climb through Tuesday before cooling down from midweek into the top of the week. A Heat Advisory is in impact for San Diego coastal and inland communities from 10:00 a.m. on Monday through 8:00 p.m. on Wednesday. For Monday afternoon, anticipate offshore winds to prevail as they push San Diego excessive temps to the ten to fifteen diploma above common vary. Offshore winds coupled with a robust ridge overhead will maintain us dry, however as onshore winds return mid-week, we might see sufficient moisture for some mountain showers by Wednesday afternoon. 

Dry and scorching offshore winds will maintain any moisture out of the forecast as temperatures heat on Monday and Tuesday. Some rain within the mountains is feasible Wednesday and Thursday forward of an higher trough as moisture pulls again into the area and winds return onshore. Models, nevertheless, are in disagreement as to how a lot moisture will likely be out there, resulting in forecast uncertainty on the potential for measurable rain for Wednesday or Thursday.

A Heat Advisory will take impact Monday at 10:00 a.m. and expire Wednesday at 8:00 p.m. with temperatures nicely above regular for San Diego County coastal communities and inland valleys. An Excessive Heat Warning is in impact from 3:30 a.m. through 11:00 p.m. on Tuesday for San Diego County deserts.

This warming development will not be anticipated to be as oppressive as our current historic heat wave over the West a few weeks in the past, however it will likely be uncomfortable and never very Fall-like. Most of our peak temperatures will likely be 5° to fifteen° hotter than traditional. 

Temperatures will really feel extra fall-like by the top of the week into subsequent week as we progressively cool from the 10-15 diploma above common level all the way down to about common by the weekend.

Forecast excessive temperatures will doubtless peak Tuesday afternoon. Wednesday will stay scorching however will nonetheless carry loads of heat. Thursday into the weekend a extra notable cool down will likely be felt. The ridge of excessive strain that continues to build overhead will likely be nudged to the east by the top of the week as a trough digs south with loads of cooler air together with it.

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