textproduct: San Diego
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
High pressure aloft and weak offshore lower-level flow will bring warming through Friday with widespread record heat for Friday and Saturday. Weak onshore flow will return near the coast on Saturday and strengthen into early next week. This will begin to spread cooling inland on Saturday. There will be greater cooling for Sunday and Monday with stronger and gusty southwest to west winds for the mountains and deserts. High temperatures on Monday will be around 5 degrees above average.
..New Aviation Discussion for the 18z TAF Package
Strengthening high pressure aloft and weak offshore lower-level flow will bring warming through Friday. High temperatures for most areas except for the lower deserts will warm 5 to 8 degrees today with additional warming on Friday ranging from a few degrees for the deserts to 5 to 10 degrees for coastal areas.
High temperatures on Friday will be as much as 20 to 25 degrees above average. High temperatures on Friday will range from around 80 near the coast to upper 80s to mid 90s for the valleys and inland Orange County with the mid to upper 90s for the lower deserts. Most areas on Friday will have either record or near- record high temperatures.
Weak onshore flow will return on Saturday with cooling of high temperatures of a few to around 5 degrees for the coast, valleys, and coastal slopes of the mountains. Record or near-record heat will continue for the mountains, deserts, and portions of the valleys. Many record or near-record warm overnight temperatures will continue through Saturday night as well.
LONG TERM (Sunday through Wednesday)
A low pressure system moving inland through California will bring stronger onshore flow for southern California with greater cooling spreading inland for Sunday and Monday. Monday high temperatures will be around 5 degrees above average ranging from the mid to upper 60s near the coast to the 70s for the valleys with the mid 80s to around 90 for the lower deserts.
Warming of high temperatures by a few degrees will spread inland for next Tuesday and Wednesday with Wednesday high temperatures mostly 5 to 10 degrees above average.
AVIATION
261725Z...Coast...FEW-SCT high clouds AOA 20K FT MSL through this afternoon. Fog with BKN cigs 200-400 MSL continues to look less likely (10-20%) to impact coastal airports after 08Z-15Z Friday. Otherwise...mostly clear and VFR conditions today into Friday.
MARINE
No hazardous marine conditions are expected through Monday.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...None. PZ...None.
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