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2024-2025 California and Southwest Weather Thread


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In the interest of making this thread more like the PNW one, here's some model riding for you. The last 2-3 sets of runs have definitely shifted the primary axis of this thing a little bit to the east. Looking like the bullseye might be the San Gabriel Mountains instead of SB/VTU counties. Still going to be a soaker there too though.

18z GFS:gfs-deterministic-socal-total_precip_inch-7577200.thumb.png.518f4466b93170ce0b77ce3643d4afb0.png

18z RGEM:rgem-all-socal-total_precip_inch-7285600.thumb.png.12264747cf7e811686ac2afb5455bfba.png

18z 3km NAM (the main axis of precip is still dead center over LA county on this final frame, so these totals are significantly underdone as there will be much more to come here):

nam-nest-socal-total_precip_inch-7199200.thumb.png.03c6ea03da3129870dc67edd7037ff1f.png

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4 hours ago, SpaceRace22 said:

In the interest of making this thread more like the PNW one, here's some model riding for you. The last 2-3 sets of runs have definitely shifted the primary axis of this thing a little bit to the east. Looking like the bullseye might be the San Gabriel Mountains instead of SB/VTU counties. Still going to be a soaker there too though.

18z GFS:gfs-deterministic-socal-total_precip_inch-7577200.thumb.png.518f4466b93170ce0b77ce3643d4afb0.png

18z RGEM:rgem-all-socal-total_precip_inch-7285600.thumb.png.12264747cf7e811686ac2afb5455bfba.png

18z 3km NAM (the main axis of precip is still dead center over LA county on this final frame, so these totals are significantly underdone as there will be much more to come here):

nam-nest-socal-total_precip_inch-7199200.thumb.png.03c6ea03da3129870dc67edd7037ff1f.png

Looks like a lot of rain  

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The 6z NAM just came in borderline catastrophic. Both the NAM and the HRRR are showing the atmospheric river stalling out exactly over LA County until literally the end of their runs. If that actually happens, the totals shown in this map will almost certainly be underdone. Even still, this has a minimum 5-7" over the entire LA Basin, with 10-15" in the San Gabriel foothills, and nearly 25 freaking inches of QPF over Mt Baldy.

Buckle up everyone. This might be a storm that we remember for many, many years.

nam-nest-socal-total_precip_inch-7242400.png

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6 hours ago, SpaceRace22 said:

The 6z NAM just came in borderline catastrophic. Both the NAM and the HRRR are showing the atmospheric river stalling out exactly over LA County until literally the end of their runs. If that actually happens, the totals shown in this map will almost certainly be underdone. Even still, this has a minimum 5-7" over the entire LA Basin, with 10-15" in the San Gabriel foothills, and nearly 25 freaking inches of QPF over Mt Baldy.

Buckle up everyone. This might be a storm that we remember for many, many years.

nam-nest-socal-total_precip_inch-7242400.png

Looks like San Diego won't be getting that much. 

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