Sacramento Weather Center

Sacramento Weather Center I do weather forecasts for the San Juaquin & Sacramento valley. This includes the foothills.

https://youtu.be/nM5DzIr7LGI
02/08/2026

https://youtu.be/nM5DzIr7LGI

Wetter and more active weather may be returning to Northern California as multiple storm signals begin to appear in the latest forecast models. In this updat...

Sacramento Weather Discussion For Wednesday, January 14, 2026 - 22:15z (2:15 pm PST)……….Synopsis……….Dry and quiet weathe...
01/14/2026

Sacramento Weather Discussion For Wednesday, January 14, 2026 - 22:15z (2:15 pm PST)

……….Synopsis……….
Dry and quiet weather with stagnant air and patchy dense fog each morning through the weekend. With dry and quiet weather through all of next week.

……….DISCUSSION……….
After patchy dense morning fog across much of the Sacramento Valley, including the delta, the dense fog and low clouds have finally begun to burn off, although quite late, around Rio Vista, where a few patches linger. Expectations are that any fog that remains will burn off fully by late afternoon, leading to hazy Skies As stagnant air remains in place due to strong upper-level ridging. Despite any lingering fog, temperatures have rebounded nicely with temperatures area-wide in the upper 50s to the 60s. Now with dew points in the low 50s area-wide radiational cooling under clear skies and calm winds will lead to rapid fog reformation across much of the Sacramento Valley, primarily south of the Sutter Buttes into the San Joaquin Valley, down towards Merced and Madera. Therefore, if you do run into patches of dense fog, slow down and keep plenty of distance between you and the car ahead of you, as visibilities could drop to mere feet in seconds. This will be a wash, rinse, and repeat situation through the weekend, with morning fog followed by afternoon sunshine.

……….Thursday-The weekend……….
Now, with this very stagnant pattern in place, with not much vertical mixing, hazy skies and dense fog will be the biggest impacts through the weekend as strong upper-level high pressure continues to build overhead. Although in some areas the fall could take much longer to burn off completely, I do expect many areas that do have fog in the morning will have sunny skies by late morning, early afternoon, since the fog bank is not sufficiently thick enough to prevent it to burn off and also the sun angle this time of the year is about 30.5 degrees at solar noon Which means more incoming solar energy then what would be found in the middle of December should help with the burning off process. Now, while there is a little bit of uncertainty with any mechanical mixing helped by a bit of a weather disturbance dropping down out of the North, which would increase our northerly winds. But models have backed off on this substantially, although down-sloping easterly mountain winds would at least keep the air quality in check under the stagnant pattern, and limit fog development, particularly on the far eastern side of the Sacramento and San Joaquin valleys.

………..Monday-Tuesday……….
I wish I had good news about any hopeful precipitation to return, but the latest ensembles continue to show a benign, quiet weather pattern featuring large-scale ridging across much of the West with no wet signal in sight through the middle of next week. Although patches of dense fog will continue under this stagnant pattern, fog development remains highly uncertain this far out.

……….EXTENDED……January 21st-26th……….
While deterministic model Solutions continue to indicate a quiet and dry weather pattern through the extended. Ensemble model plumes and clusters continue to indicate potentially a wetter and more active weather pattern by the end of January, although while this would be hopeful for California and for the Sacramento Valley, there's a lot of fuzz and uncertainty in the forecast, but the general model consensus shows the ridge breaking down by the middle of next week to some degree.

Forecaster……….David Schlotthauer

Sacramento Weather Discussion For Friday, October 10, 2025 - 1922z (12:22 pm PDT)……….Synopsis……….Dry and quiet weather c...
10/10/2025

Sacramento Weather Discussion For Friday, October 10, 2025 - 1922z (12:22 pm PDT)

……….Synopsis……….
Dry and quiet weather continues through the weekend with below-average temperatures, with significant rain, heavy snow, and gusty winds on tap for Monday through Wednesday next week. There is the potential for flooding in many spots.

……….DISCUSSION……….
Today is looking a lot like yesterday, although clouds will be increasing this evening as the upper-level low makes its progression Eastward. Therefore, onshore winds will pick up this afternoon as the pressure gradient increases. Therefore, daytime highs should max out in the low 70s. Tomorrow is mostly a dry day, although still thinking a few pop-up showers and thunderstorms, especially north of Sacramento, are a great possibility, but would be isolated in nature, with tomorrow being the coolest day of the weekend, with daytime highs barely getting out of the 60s. Sunday is a bit of a warmer day as shortwave ridging builds quickly behind the preceding trough that moves through tonight and tomorrow, and we get a bit of offshore flow only briefly. With that all being said, the only Short-term Weather interest would be some chilly overnight temperatures, especially for Saturday night and Sunday night, as a drier air mass with calm winds and longer nights would mean temperatures will get down into the low to mid 40s in many spots, especially outside of urban areas But in urban areas overnight lows will probably stay in the upper 40s to lower 50s. Also, with this type of configuration in the pattern, we might see some tule fog develop Saturday night as well, but it would be isolated and patchy in nature. But visibility would drop down to a quarter of a mile or less if you are caught in any of those patches. Otherwise, once the fog Burns off, Sunday is looking to be a great day with increasing high clouds by the evening with daytime highs into the low to mid 70s.

……….Monday-Wednesday……….
Now the big discussion in today's update will be the upcoming significant storm of the Fall/Winter season taking aim at Northern and central California from Monday night into Wednesday. Latest cluster plumes, along with global Ensemble models, are in much better agreement today that a very amplified trough will develop out of British Columbia in the Canadian Prairie and nose-dive straight south along the California coast. The only remaining wrinkle in the forecast is just how amplified the trough will get. We're still seeing some variability in the GFS operational guidance vs a trend to a more deeper low making landfall in the Bay Area of 543 decameters As seen on the euro but putting this all together, the national blend of models or the NBM has leaned towards the euro In recent Trends and so I'm doing the same thing and leaning more towards a ECMWF than the GFS Since the Euro has been a little bit more consistent between model runs. Now with that in mind, what does this mean for our area? Well it means much better upper-level Dynamics and support for a swath of significant precipitation for the Sacramento Valley and foothills with heavy mountain snowfall for the Sierra. Now the added concerning factor to all of this is that the right front quadrant or the left exit region of the 500mb jet stream of 60-80 kts could lead to some baroclinic surface low development which is very hard for models to resolve in this type of situation and there is a non-zero chance at a sting jet develops rapidly on the back side of the upper level low, And should this occur a swath of intense wind gusts greater than 40 or 50 miles an hour could develop out of the North and NorthWest Direction, So that is something to consider with this type of setup. And another concerning aspect that should be addressed is the risk for severe thunderstorms that develop Monday night into Tuesday, where upper-level Divergent flow is sufficient for enough lift to trigger vigorous updrafts. And should any of these thunderstorms develop in the valley and then race quickly towards the foothills would produce rainfall rates greater than 2” or even 3” in/hr given PWAT values are greater than 1.15 in, vigorous erratic winds, potentially short-lived mesocyclones that produce brief tornadoes, and the potential for dime-size hailstones (some perhaps larger) Are a possibility since ice growth zones will be lower in altitude than average. So with that all being discussed, snowfall totals in the mountains right now are looking anywhere between 12 to 18in with isolated amounts up to 2ft perhaps across the higher peaks, and snowfall levels will drop down to about 4,500 ft. So chain controls across any of the passes are expected by Monday night, so if traveling to the mountains, please allow extra time, as significant delays are likely. Now as far as those rainfall totals go I'm thinking anywhere between about 3/4 of an inch to an inch and 1/4 for the Sacramento Valley, with anywhere between about a half an inch to an inch for the southern San Joaquin Valley, such as Stockton points southward. So some minor flooding is a distinct possibility given that leaves are beginning to fall and would lead to storm drain blockages. Now the wind aspect does not look to be overly significant but enough to talk about it in this discussion, is that wind gusts from the southeasterly direction across the valley will range between 25 to 35 mph, so therefore some minor short-lived power outages are also a distinct possibility. So, between Monday night into at least early Wednesday morning will be the stormy window with thunderstorms, heavy rain, and gusty winds from time to time. Now another thing that I wanted to point out in this discussion is that temperatures will be well below average between Monday and Tuesday of this part of the period, with daytime highs in the mid to Upper 50s on Tuesday.

………..Wednesday-Thursday……….
Now there is still quite a bit of uncertainty on how long the upper-level low will hang around our area for with quite a bit of different approaches to this. The European model keeps the upper level low hanging around our area for an extra day or two before finally moving out of our area, with the GFS being a little faster with its solution, moving out by late Tuesday night. Because of the level of uncertainty, rain chances will continue through at least Thursday due to more convective in nature storms by Wednesday and Thursday, with temperatures well below historical averages, and if we could avoid any offshore wind events, truly fog will make a comeback as large-scale ridging noses in gradually. This of course will complicate the temperature forecast but in general well below average temperatures will stick around for the remainder of the work week.

……….EXTENDED……October 17th-21st……….
Now, when looking at the extended forecast for the following weekend, there are some indications that an extended dry and milder period may return to our area with more subtle flat line ridging that would favor Tule fog development in the valley, with the lack of inside slider activity meaning offshore winds would not be a big concern. But as always, the forecast is subject to change, so stay tuned for the latest here on the Sacramento weather page for more information.

Forecaster……….David Schlotthauer

Sacramento Weather Discussion For Thursday, October 9, 2025 - 1945z (12:45 pm PDT)……….Synopsis……….After a warm last coup...
10/09/2025

Sacramento Weather Discussion For Thursday, October 9, 2025 - 1945z (12:45 pm PDT)

……….Synopsis……….
After a warm last couple of days, cooler and unsettled weather returns for the rest of the work week into the weekend, with rain chances increasing yet again for early next week with well below average temperatures throughout.

……….DISCUSSION……….
Today is looking like a fair sky day with partly cloudy skies being observed based on the latest satellite imagery, indicating puffy cumulus clouds, an indication that cooler air has arrived Across the region and as of this writing temperatures are still in the upper 60s to lower 70s in many spots so I would expect temperatures to climb into the low 70s this afternoon in many areas with lighter winds today. The next few days will be a carbon copy with some clouds from time to time, with below-average temperatures, with highs in the low to mid 70s. Some honest warming takes place on Sunday before much cooler and wetter weather arrives by early next week, more on that below.

……….Monday-Wednesday……….
Now as far as the wet weather goes for Monday through Wednesday there is still reasonable disagreement between the operational models and the ensembles which highlight again two different scenarios here but there is slightly better agreement between the two most reliable models with the GFS indicating that the low is much further offshore than this time yesterday versus the European Model A little bit more closer to the coast. Now should the low remain further offshore, this would not only pick up more moisture off the Pacific but most of the heaviest rainfall would slide down along the coast of the Bay Area into Central California, sparing the Sierra Foothills and parts of the Central Valley compared to a closer approach to the coast would mean heavier rainfall with spread further inland And would of course bring much more beneficial rainfall for the Sierra foothills and heavy Sierra snow to the mountains. Because of the reasonable disagreement, I have not made many changes to my rainfall forecast since yesterday, and I have only dialed back on rainfall totals for Foothills in coordination with the latest model trends. Now, as far as the winds go, winds don't look to be as impressive as previously thought, since a system riding the coast does not have as much forward progression eastward, which would help strengthen a cold front and increase the pressure gradient. Now the only thing that remains consistent between models is that temperatures will be way below average for mid-october climatology, with daytime highs still forecasted to be in the upper 50s to mid-60s, which is as much as 20 to 35 degrees below normal. So, definitely much cooler next week to wear jackets is a must. Now, as far as those overnight temperatures, once we go into the latter part of next week, cooler and drier air filters in from the north with some down sloping of the Winds as typical, which would help to lead to more radiational Cooling in the valley floor, meaning overnight lows could dip into the low to mid-40s.

……….EXTENDED……October 15th-18th……….
There is a bit more disparity between the ensembles in today's forecast package for the extended future beyond October 16th. There are two different scenarios in this type of long-range forecasting the European ensemble has a more Progressive pattern with one trough leaving with the next one on its heels type of scenario keeping us in a unsettled weather pattern with below average temperatures versus the GEFS ensemble wants the same low that brings us rain and cooler temperatures to meander for several days with anticyclonic wavebreaking in the PacNW that would keep this trough from progressing eastward therefore there's still a lot of uncertainty Beyond Wednesday and Thursday next week on how this pattern evolves. But with coordination of the Climate Prediction Center, we're leaning a bit more towards the European Ensemble than the GEFS. Which means cooler and more unsettled weather follows beyond the middle of next week. But please stay tuned as we get closer.

Forecaster……….David Schlotthauer

Sacramento Weather Discussion For Wednesday, October 8, 2025 - 2141z (2:41 pm PDT)……….Synopsis……….After a warm last coup...
10/08/2025

Sacramento Weather Discussion For Wednesday, October 8, 2025 - 2141z (2:41 pm PDT)

……….Synopsis……….
After a warm last couple of days, cooler and unsettled weather returns for the rest of the work week into the weekend, with rain chances increasing yet again for early next week with well below average temperatures throughout.

……….DISCUSSION……….
Latest satellite imagery indicates a very deep Marine layer of around 5,000 ft, all thanks to Upstream troughing that is impinging on our area, allowing geopotential heights to fall with low-level temperatures, also cooling. Now with low-level temperatures cooling, there has been some decent cool air advection owing to onshore flow and low-level Stratus, which persisted this afternoon around the immediate Bay Area, with some Stratus trying to pour into the Carceniz Strait in the Rio Vista area, This and all has allowed at temperatures to stay quite cool compared to yesterday with many areas in the immediate Delta struggling to even climb out of the upper 60s. But of course, with the lower Sun angle compared to mid-summertime, temperatures this time of the year can't recover as quickly. Therefore, I still expect temperatures to be on track to reach the low 70s across much of the Sacramento Valley with mid to Upper 70s around the Stanislaus County area, such as Modesto, Turlock, and Manteca, which includes Tracy. But this is the beginning of a more pronounced pattern change that takes effect by tomorrow and Beyond, with today the transition day. For tonight, expect low-level cloud cover to increase as the air mass gradually begins to lift. Again, thanks to an approaching shortwave trough as mentioned earlier. Now, because there is enough lift and low-level instability, it wouldn't be entirely surprising to squeeze out some moderate to heavy drizzle in favored locations. Overnight tonight, primarily the closer you get to the bay and the coast. The low-level cloud cover should keep temperatures a little milder tonight, primarily in the mid to Upper 50s in many spots, with a few 60s squeezed in there. Now, where any clearing remains in some areas tonight, overnight lows could still dip into the upper 40s to lower 50s, but this is with low confidence.

……….Thursday-Friday……….
Now tomorrow is going to be an interesting day, skies should start off partly to mostly cloudy with widespread low Stratus blanketing much of the Bay Area into at least Solano County and the Rio Vista region, where some onshore push will help to usher some of that Stratus in these areas. Any fog will likely mix out by mid-morning; however will likely be replaced by a few mid-level clouds, part of that trough that is swinging through the region. This will lead to an even cooler day tomorrow with low 70s area-wide with onshore winds picking up by late morning into the afternoon hours with wind gusts in the valley up to about 25 miles an hour from the Westerly direction. Now, if going to the mountains ahead of Columbus Day weekend, strong upslope flow will lead to wind gusts and excess of 30 to 40 miles an hour, with peak gusts in the ridge tops exceeding 50 to 65 mph from the southwest direction. It is also worth noting due to the fact that the upper-level low will briefly become pinched off from the overall flow not much in the way of precipitation is expected with this first system; however, once it does become more progressive on Friday, some accumulating showers are anticipated primarily north of I-80 into Butte and Sutter counties. Now I just briefly mentioned Friday is going to be the day to watch for any showers to arrive from the northwest part of the same trough that again will become Progressive and will move overhead, especially Friday afternoon into Saturday morning. There is excellent agreement in the ensembles from the ECMWF and GEFS and of course, with clouds and some showers on Friday, temperatures will stay on the cooler side in the low 70s with a few upper 60s north of I-80 given not much sun will peak through. So make sure you Have your reindeer handy just in case if it showers on you.

……….Saturday-Sunday……….
Now, once cooler air arrives in the wake of the passage of a weakening cold front, surface-based instability as temperatures aloft are rather cool will lead to some pop-up showers and potentially a thunderstorm on Saturday Or right now chances of this occurring are less than 20% so confidence is low but if any storm were to pop up, brief downpours and gusty winds would be the main hazards given that these would be lower topped storms. Rainfall accumulations between Friday and Saturday look to be less than a tenth of an inch area-wide wide with up to perhaps a quarter of an inch across Butte and Sutter counties in the northern end of the Sacramento Valley.

Sunday is another transition day as the leading shortwave progresses eastward, followed by a re-amplification of another trough that will drop straight down from the Canadian Prairie, and this one looks to be much more dynamic than the first one and cooler as well. Temperatures could warm some on Sunday but still thinking low to mid 70s area wide, which still is below average for this time of the year by a safe margin of 5 to 10°. One thing that's noticeable, though, is with longer nights, shorter daylight, days being cooler, and overnight lows, especially Saturday night and Sunday night, look to be the first round of widespread upper 40s across the valley, which is also below average for this time of the year. For reference, the average low in Sacramento for October 15th is 52°, the low is forecasted to be 48°. So get used to getting the jackets out to keep you warm when commuting to work, especially on Monday morning.

……….Monday-Tuesaday……….
Most Ensemble members are highlighting the next arrival of another more Amplified trough digging straight down from Canada there are notable differences on how this evolves between that of the Canadian and Euro model indicating that the trough will drop down along our Coast and meander for a day then moves straight into Northern California whereas the GFS still has more of an inside slider setup with the trough digging down across the Great Basin with northerly flow This has resulted in a lot of uncertainty in the forecast but one thing's for sure with two different scenarios setting up, temperatures will be notably cooler by Monday and Tuesday with daytime highs in the low to mid 60s. Now the other scenario would bring light chances of showers across our area with southerly winds between 10 and 20 mph. And right now the best guess forecast here with rainfall totals are anywhere between about a tenth to a quarter of an inch in the Sacramento and San Joaquin Valley, with up to about a half an inch to 3/4 of an inch of rain for the Sierra Foothills. Snowfall totals with this one look to range between 6 to 12 in based on NBM model guidance. Will keep you updated as this gets closer

……….EXTENDED……October 15th-18th……….
Long-range model guidance suggests that unsettled weather will continue with additional chances of showers with below-average temperatures through most of the work week into the following weekend.

Forecaster……….David Schlotthauer

Sacramento Weather Discussion For Sunday, July 20, 2025 - 12:55 pm PDT……….Synopsis……….Mild weather continues today acros...
07/20/2025

Sacramento Weather Discussion For Sunday, July 20, 2025 - 12:55 pm PDT

……….Synopsis……….
Mild weather continues today across our region as slight upper-level ridging dominates our area. Much cooler weather, Gusty winds, and a slight chance of a shower across the Northwestern portion of our CWA region by Wednesday. Temperatures don't moderate much through the rest of the work week into the last weekend of July.

……….DISCUSSION……….
Latest satellite imagery indicates plenty of sunshine dominates our area of the exception along the San Mateo Coast, where the Marine layer is holding steady at around 1,800 ft per Fort Ord profiler. Due to slightly weaker Louisville onshore flow combined with a slightly compressed Marine layer, this has resulted in a slightly weaker SFO-SAC gradient and is currently running at 1.9 millibars. With this in mind, temperatures today will run about a degree or two warmer with low to mid 90s across the Sacramento Valley, including for Stockton, Lodi, Modesto, Manteca, and Turlock. Now, like over the last several afternoons, onshore breezes will pick up this afternoon but will not be quite as strong as what we had the last couple of nights with winds across our area between 10 and 20 mph from the southwesterly direction

……….Monday-Wednesday……….
Much cooler weather begins to arrive on Monday as the upper level low begins to retrograde off the California coast, this will result in cooling 850 and 925mb temperatures and that will result in a steeper thermal and pressure gradient both for Monday afternoon, Tuesday afternoon, and Wednesday afternoon with the forecast SFO-SAC gradient To increase to about 5 to 7.5 mbars Which will result in strong onshore winds by the mid to late afternoon with wind gusts across the area up to about 30 to 35 miles an hour with winds in the Fairfield Area expected to see wind gusts up to 40 and 45 mph. This will help to keep temperatures down quite a bit with upper 70s to mid 80s across the Sacramento Valley, the Delta, and the San Joaquin Valley. Now, before I forget, the deepening expanding Marine layer could allow some intrusions of low Stratus even into the Sacramento and Northern San Joaquin Valley for Tuesday morning and Wednesday morning Which will help to delay on how warm it gets by the afternoon. So with that all being said, temperatures will run about 5 to 15° below average for most of this work week which isn't too bad given the fact that we have had only 2 triple-digit days according to the Sacramento Executive Airport since May 1st.

……….Thursday-Saturday……….
Now by Thursday and Friday, forecast models do indicate subtle ridging building back into the region With southwesterly flow continuing quite strong across our area, helping to keep the Delta breeze effective despite a slight warming trend by the latter part of the week into the weekend with overnight lows still in the mid to upper 50s at night.

Forecaster……….David Schlotthauer

Hot weather is here for a couple of days then when will it cooldown.
06/18/2025

Hot weather is here for a couple of days then when will it cooldown.

The hot weather is here for a couple of days as large-scale transient ridging builds in but when will we see relief from the summer heat? Find out more in to...

Since I don't have as much time as I would like, I think doing Sacramento weather forecast uploads would be a bit faster...
06/16/2025

Since I don't have as much time as I would like, I think doing Sacramento weather forecast uploads would be a bit faster. Thanks for your understanding :)

Another miniature heatwave is arriving this week across the Sacramento Valley, but when will we see more comfortable weather? In today's weather forecast, I'...

Sacramento Weather Discussion For Wednesday, January 29, 2025 At 6:16 pm PSTSynopsis…..Another chilly night ahead for Th...
01/30/2025

Sacramento Weather Discussion For Wednesday, January 29, 2025 At 6:16 pm PST

Synopsis…..
Another chilly night ahead for Thursday morning before big weather pattern changes arrive on Friday. Heavy rainfall, mountain snowfall, and strong winds this weekend through the middle of next week.

………Discussion……….
It has been quite a while since a significant storm system has impacted our CWA (County Warning Area) Since the 2nd of January, although areas south of I-80 did recently got a few showers, enough at least to break the dry streak in Stockton and Modesto but that was nothing compared to with what will be coming this weekend more on that below. Sacramento did not receive any precipitation from our cutoff low that went through the area a few days ago So the dry streak continues. Now, with that being said, tomorrow will be no different from our past 4 weeks, with mostly sunny skies and temperatures warming into the upper 50s to lower 60s under light winds. The only short-term concern in the very near term will be another night of very cold temperatures with some isolated spots dropping down into the upper 20s to middle 30s. But this will be the last very cold night as upper level flow changes out of the southwesterly direction tomorrow with the increase of a slight onshore breeze to moderate those temperatures.

Now, the dry streak comes to an end on Friday as a plume of subtropical moisture originating from Hawaii, famously known as the Pineapple Express, aims directly towards northern and central California. Now confidence is high with initial rain starting Friday morning north of I-80 And then sliding Southward gradually through the day into the San Joaquin and Stanislaw valley, lasting through Friday night. Moderate to potentially heavy rainfall will be focused over the lower elevations of the Sierra with increasing orographic lift. Now as far as those snowfall totals go, those will start rather low at around 4000 to 5000 ft during the day Friday but then as warmer air advection owed to strengthening 850 and 700 mbar flow Increases in the afternoon hours those snow levels will go up significantly to around 7000 to 8000 ft by Saturday morning. Therefore, only expect one to two inches of snow down to 4,000 ft with more significant accumulations at around 5000 to 6000 ft before the arrival of warmer air. Rainfall totals for this first bout of precipitation look to range between a quarter of an inch in the San Joaquin Valley and up to 3/4 of an inch across the northern Sacramento Valley. Foothill locations will see much more rainfall up to one to two inches of rain in these locations, let alone only through Friday night.

……….Saturday-Monday [SHORT/MID-TERM]………
Now, the bigger concerning aspect of all of this begins on Saturday as a stronger 500 mbar impulse of upper-level energy into Northern California. But this is also when there is a bit of uncertainty on exactly where the enhancement of this river of moisture couples with stronger jet stream dynamics. There is some discrepancies between the GFS and the ECMWF deterministic runs. The latest 18z ecmwf has the river aimed At Yolo, Colusa and, Sutter counties, including the city of Chico and Paradise, through most of Saturday and then has the river of moisture sagging back south Saturday night into Sunday. Now when it comes to the GFS scenario, it has the atmospheric river stalled out over much of the San Francisco Bay, the Sacramento and, San Joaquin valleys into even the northern Stanislaw valley. This makes a huge difference with rainfall totals with the euro ranging between 0.25 to 1 inch of rain in downtown Sacramento and around 0.75 to 1 inch in a Stockton area versus the GFS indicating 1 to 3 inches of rain over the Sacramento area with possibly up to 3 in over Stockton. After we get past Saturday there seems to be medium confidence with the atmospheric River remaining parked over the area through Monday afternoon with additional rainfall totals measuring in inches in these areas but to keep this short we're not going to really dive very deep into rainfall totals as these are looking quite alarming and will peel back those rainfall totals once we get into Friday night.

………..Tuesday-Thursday [MID-TERM]……….
Now after that atmospheric river goes by there will likely be additional storms to follow but to what magnitude is still highly uncertain as the weather pattern gets more complicated with North Pacific Alaskan ridging with undercutting of troughs that aim towards California. The ECMWF is not as aggressive On this scenario with most of the rain slamming Southern California, whereas the GFS is more bullish at showing a re-amplification of atmospheric River moisture aiming towards Northern and central California again. Between these two scenarios there is some level of confidence at wet weather will continue through the middle of next week But is at a 30 to 50% based on the super blend.

……….EXTENDED Febuary 7th - February 10th………[LONG TERM]
Now looking at the extended forecast, there is a lot of moving puzzle pieces as far as the overall Upstream Amplified wave pattern, Which models do not resolve very well. Right now the Euro keeps things dry after Wednesday versus the GFS again being bullish Keeping unsettled weather at least through Friday With much colder temperatures. With that being said there is low confidence that after Wednesday we will get any more measurable rainfall but still hold that around a 15 to 30% per National Blend Model

Stay tuned for more updates. I'm conducting daily weather discussions as we figure out the timing and strength of the upcoming wet weather pattern change.

Forecaster……….David Schlotthauer

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Sacramento, CA

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