Warmer and drier conditions today with any lingering showers coming to an end early this morning. Warming high and low temperatures through the middle of next week. Slight chance of mountain showers and thunderstorms during the afternoon through Thursday. Gradual cooling will follow with drier conditions going into the following weekend.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
, UPDATED AVIATION DISCUSSION,
Today through tomorrow night,
Latest night fog reveals that there are some areas of low patchy clouds out over the inner waters of the SOCAL bight, yet the coastal areas remain clear themselves at this hour, and will likely remain that way through the morning as there are still a substantial amount of mid to upper level clouds moving over the region. There are still a few lingering showers, although the majority of the rain has now come to an end as the moisture associated with a decaying Tropical Storm Marie well to our southwest continues to move west out of the area. Skies will begin to clear later in the day. The ridge in place will further build going into the middle of the week. Coincidentally, a warming trend will also take place, with highs returning to above average temperatures by tomorrow. For the overnight hours, there will be a struggling marine layer attempting to form and establish itself, and there could be areas of patchy fog developing within some of the higher wind-sheltered valleys, especially where there is antecedent soil moisture from recent rainfall. Lows will still be balmy as well, with humidity still being above average. Tomorrow will bring about further warming and drying.
Wednesday through Sunday,
As the ridge continues to build into the middle of the week, temperatures will warm back above the seasonal average, with highs peaking on Wednesday, which will find high temperatures returning back into the 90s for much of the inland areas, and back over 100 within the IE. The deserts will also see temperatures reaching back into the 110s. This, in combination with humidity will produce some high heat indices for the lower elevations of the deserts. There will still be moisture in place that will move up clockwise around the high pressure centered over the Four Corners area that will keep a slight chance of afternoon showers and thunderstorms for the mountains and adjacent deserts, along with a gradual cooldown throughout the rest of the work week, especially on Wednesday and Thursday during the afternoon hours. From there, troughing is going to help displace mid level moisture further to the east and suppress the chance of afternoon showers and thunderstorms for the mountains and deserts. From there, further cooling will occur going into the following weekend with drier and breezier conditions. The marine layer will likely also continue to be displaced and patchy throughout the rest of the work week, and then should become more prevalent thereafter going into the weekend as better onshore flow returns.
071130z, SCT-BKN clouds mostly between 10000-20000 feet MSL today, thinning out tonight. Occasional -SHRA north of San Diego County through 19Z. Additional cumulus formation around 9000 feet MSL over mountains along with a slight chance of SHRA/TSRA 19-00Z. VFR conditions to continue into Tuesday morning.
No hazardous marine conditions are expected through Friday.
A large south swell from Hurricane Marie will continue to produce large surf of 4 to 7 feet, with sets up to 10 feet this morning, highest on south and southwest facing beaches. This will result in elevated to high surf and strong rip and longshore currents, creating hazardous swimming conditions. Additionally, high tides during the evenings will combine with the high surf to produce minor tidal overflow, coastal flooding, and localized beach erosion. Swell and surf will gradually diminish later today through Tuesday. Check the Coastal Hazard Message for details.
Ca, Coastal Flood Advisory until 11 PM PDT Tuesday for Orange County Coastal Areas-San Diego County Coastal Areas.
High Surf Advisory until 11 PM PDT Tuesday for Orange County Coastal Areas-San Diego County Coastal Areas.
PZ, None.
