Weather Forecast: Today, Tonight, Tomorrow, Next Day, Five Days, 10 Days for the U.S. with some maps for the World posted January 10, 2023

Updated at 4:02 p.m. Tuesday, January 10, 2023

Here is what we are paying attention to in the next 48 to 72 hours. This article also includes World weather forecasts.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
248 PM EST Tue Jan 10 2023

Valid 00Z Wed Jan 11 2023 - 00Z Fri Jan 13 2023

...High Impact Heavy Precipitation will continue across much of California
through tonight...

...Heavy mountain snow will continue across the West through tonight...

...Next Atmospheric River arrives Wednesday and will impact northern
California and the Pacific Northwest...

...Isolated to scattered severe thunderstorms possible in the Southeast on
Thursday...

First, the 48-Hour Forecast (It is a 48 to 72 Hour Forecast actually)

Daily weather maps

TUESDAY AFTERNOON, EVENING AND OVERNIGHT

WEDNESDAY

THURSDAY

I try to keep the above maps updated. They only update twice a day and in some cases once a day.

I will be doing the updating during the period described in the title of the article but if you happen to read this article later you can get updates by clicking HERE.

This animation shows how things may play out over the next 60 hours. To update click here.

ATMOSPHERIC RIVERS

Continuation of the NWS Short Range Forecast (It is updated by NWS twice a day and these updates can be found here. We post at least one of those updates daily, sometimes both. The Highlights are shown in the lede paragraph of this article.

Back-to-back atmospheric river events continue to hammer California and
pose flooding threats. Radar showed widespread moderate to heavy rainfall
across much of California this afternoon. The system currently producing
precipitation is forecast to move east across the Intermountain West
tonight and emerge into the Plains on Wednesday. Heavy precipitation will
continue for much of California through tonight, and scattered to
widespread instances of flash flooding will be possible, especially near
steep terrain and burn scars. There is a Slight Risk of Excessive Rainfall
(level 2/4) in effect for much of the coast and Central Valley with an
embedded Moderate Risk area (level 3/4) over part of southern California
for sensitive areas along the upslope portions of the Transverse Ranges.
Heavy snow will also continue through tonight at high elevations across
the West, and some locations could receive an addition few feet of snow.

There will be a brief break in the rainfall in the West late tonight
before the next atmospheric river arrives Wednesday. Moisture will stream
ahead of a large cyclone in the eastern Pacific Ocean, which will produce
heavy precipitation in northern California. As the system slowly
approaches the West Coast, precipitation will spread north into the
Pacific Northwest Wednesday night and continue through the end of the work
week. Soils in California are saturated from above average rainfall over
the past few weeks, which means it won't take much additional rainfall to
trigger flooding. There is a Slight Risk of Excessive Rainfall (level 2/4)
in effect for much of the northern California coast for Wednesday, and
scattered instances of flash flooding will be possible. Soils in the
Pacific Northwest are not nearly as saturated as the soils in California,
so flooding concerns in the Pacific Northwest will not be as high as in
California. The one benefit of above normal rainfall in California is the
relief from persistent drought that has been plaguing the state for quite
some time.

For the eastern half of the CONUS, the next storm system will be the one
traversing the Intermountain West tonight and emerging into the Plains on
Wednesday. This system will move across the central and southern Plains
through Wednesday evening, towards the Middle Mississippi Valley Wednesday
night into Thursday, and then push into the Northeast Thursday night into
Friday. Widespread showers and thunderstorms are expected in the eastern
third of the nation on Thursday, with isolated to scattered severe storms
possible in the lower Mississippi Valley, Tennessee and Ohio Valleys, and
Southeast. The Storm Prediction Center has issued a Slight Risk of Severe
Thunderstorms (level 2/5) for parts of the Southeast for Thursday.
Damaging winds should be the main severe storm threat, but a brief tornado
or two may also be possible. On the northern side of the system, snow and
wintry mixed precipitation will be possible, mainly in the Upper Midwest
and Great Lakes region.

Below is the current five-day cumulative forecast of precipitation (Updates can be found HERE)

Now we look at Intermediate-Term “Outlook” maps for three time periods. Days 6 – 10, Days 8 – 14, and Weeks 3 and 4.  An outlook differs from a forecast based on how NOAA uses these terms in that an “outlook” presents information as deviation from normal and the likelihood of these deviations.

Below are the links to obtain updates and additional information. They are particularly useful if you happen to be reading this article significantly later than when it was published. I always try to provide readers with the source of the information in my articles.

Temperature month to date can be found at https://hprcc.unl.edu/products/maps/acis/MonthTDeptUS.png

Precipitation month to date can be found at  https://hprcc.unl.edu/products/maps/acis /MonthPNormUS.png