Western USA Weather, with a focus on Southern California
Joined May 2015
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SoCal Weather Watcher retweeted
Jun 12
Increased mid level moisture is keeping overnight temperatures a little warmer than average. This combined with mild afternoon temperatures will lead to widespread minor with localized moderate HeatRisk this weekend.
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SoCal Weather Watcher retweeted
Jun 11
Okay, folks: The big El Niño update is now out on Weather West! This sure looks like it's going to be a dramatic year from a global climate perspective, and there are major implications for extreme events (across California, the U.S. West, & well beyond). weatherwest.com/archives/438…
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HRRR Simulated Radar & Satellite - A disturbance near Baja will direct some of the season's first hints of Monsoonal moisture into Southeastern #SoCal Friday afternoon. Some mid/high clouds for Southern portions of the region and a very slight chance of a shower in the Mtns/Deserts of San Diego, Riverside and Imperial Counties. #CAwx
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SoCal Weather Watcher retweeted
High pressure combined with offshore winds will lead to significant warming on Wed, especially for coastal portions of Santa Barbara and SLO Counties. Prepare by avoiding the outdoors during the peak heat of the day, and seek air conditioning. Also look before you lock! #caheat
ALT High pressure combined with offshore winds will lead to significant warming on Wednesday, especially for coastal portions of Santa Barbara and San Luis Obispo Counties. Prepare for the heat by adjusting plans to avoid the outdoors during the peak heat of the day, and seek air conditioning and shade. Always check before leaving your vehicle, that no one was left inside. Parked vehicles can become hot rapidly, and endanger anyone left inside.
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SoCal Weather Watcher retweeted
Jun 8
Temperatures will pick up later this week, with most locations 5-12 degrees above normal! The heat will prevail into the weekend, so make sure to bring extra water and sunscreen if you head outdoors.
ALT High temperatures across Southern California on Thursday.
ALT High temperatures across Southern California on Friday.
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SoCal Weather Watcher retweeted
Jun 5
Weather West update: Unusually active June jet stream energizes late season low pressure (w/ PacNW/NorCal showers) before giving rise to broad and strong ridge by mid-June, with significant PacNW/NorCal heatwave possible. Quite a pattern shift! weatherwest.com/archives/438…
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SoCal Weather Watcher retweeted
Jun 4
This enhanced Pacific jet has been helping to "juice up" nearby low pressure systems for much of this spring. But later in June, it appears this jet extension will have the opposite effect: It'll help build a big downstream ridge, through diabatic heating and other effects.
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SoCal Weather Watcher retweeted
Jun 4
Highly changeable weather conditions are once again expected along the West Coast in coming days. First, this weekend and early next week, a trio of low pressure systems will round the base of a NE Pacific trough, bringing cool temps & June showers to the PacNW (and maybe NorCal).
ALT Map plot of Western U.S. 500mb GPH anomalies (5 day average) showing a trough along the West Coast over the coming week as predicted by ECMWF ensemble.
ALT Map plot of Western U.S. accumulated precipitation showing 1-2 inches of accumulation in the PacNW and less than 0.5 inches over the next 10 days over far northern CA, as predicted by ECMWF ensemble.
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SoCal Weather Watcher retweeted
May 30
Warm and dry for #SoCal thru Monday:
* Highs 5-10 degrees above normal
* Minor heat risk issues
* Elevated fire weather conditions
- SW-NW gusts 30-50 MPH
- Min RH 10-25%
- Enhanced risk of grass/brush fires
#CAwx
ALT Expected high temperatures Sunday through Monday
ALT Expected peak wind gusts tonight through Sunday night
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High Pressure will gradually build in across the West over the next few days. Daytime temperatures in #SoCal will get back up into the low 80's for LA/OC Metro areas next week, with mid to upper 80's Inland Valleys. Coastal locations will see temps in the 70's thanks to the Marine Layer burning off late there. #CAwx
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The first Tropical Cyclone of what is expected to be an active season in the Eastern Pacific will likely develop next week.
May 28
May 28 11 AM PDT: There is a medium chance (40%) of tropical cyclone formation well to the southwest of the Baja California peninsula next week. Visit hurricanes.gov for more details.
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SoCal Weather Watcher retweeted
May 26
Continued cooler weather across the area will be accompanied by windy conditions across the mountains and deserts. Please drive with care if venturing into these areas 🚗🚚
ALT Gusty west winds across the mountains and deserts. Peak gusts near 60 mph in some mountain passes. Drive with care.
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Looking like an above average Monsoon season ahead for the interior Southwest including #SoCal Mountains and Deserts.
Likely a better than average shot of rainfall from decaying Tropical systems during late Summer/Early Fall for all of SoCal as we anticipate an active Hurricane Season in the Eastern Pacific thanks to a developing El Niño.
May 26
The 2026 Monsoon Outlook. As of late May the odds are tilting toward above average precipitation and temperatures across all of Arizona. Feel free to share/post graphics wherever you like. (graphics shown are in both english and spanish). #azwx
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SoCal Weather Watcher retweeted
May 15
Still looking windy this weekend for #SoCal:
- W-NW wind, gusting 40-65 MPH today-Sun
* Strongest (gusts 55-65 MPH) tonight-Sun Night
* Interior sections as well as SW Santa Barbara county
- Gale force gusts (35-45 kt) across most of the coastal waters. #CAwx
ALT Peak wind gusts expected this weekend
ALT Current wind hazards across the area
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Nice full-disk view of the Earth from GOES-16 today. If you look closely you can see the Marine Layer doing its "May Gray" thing over #SoCal Coastal areas. A typical sight for this time of year.
May 15
Here's @NOAASatellites #GOES16 today at local satellite noon (19:00UTC) with the CIMSS Natural Color enhancement. GOES-16 is out of storage for testing for about 2 weeks. Happy #FullDiskFriday!
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SoCal Weather Watcher retweeted
May 14
Windy with elevated to brief critical #FireWx conditions this weekend:
* W-NW winds gusting 35-50 MPH interior sections and western Santa Ynez Mountains
* Min RH 8-15% interior sections except 20-30% SW #SantaBarbara county
* High risk of fast-moving grass/shrub fires.
#CAwx
ALT Peak wind gusts expected this weekend
ALT Fire Weather risk this weekend
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SoCal Weather Watcher retweeted
May 13
What does #ElNiño really mean for California winter precipitation? In short: it depends on how strong El Niño becomes. Weak events exert only a negligible influence, but strong ones can profoundly increase the likelihood of wet winters and heavy downpours. youtu.be/JxQGuoDfovo
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