Weather Forecast: Today, Tonight, Tomorrow, Next Day, Five Days, 10 Days for the U.S. with some maps for the World posted January 22, 2023

Updated at 3:47 p.m. EST Sunday January 22, 2023

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

It also includes links for longer-term outlooks and sometimes we show the maps that one finds if one clicks on those links. But we can not update all of those maps each day so look at the date and the duration of the period of time involved. If you want a more up-to-date map, click on the provided link which may be located in a table of links. NOAA makes it difficult for us to have maps that auto-update. We are trying to make it convenient for readers but NOAA wants us to steer traffic to a large number of their websites which would make it very difficult for readers.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
242 PM EST Sun Jan 22 2023

Valid 00Z Mon Jan 23 2023 – 00Z Wed Jan 25 2023

…Heavy snow over parts of Northeast…

…There is a Marginal Risk of severe thunderstorms and excessive rainfall
over parts of the Eastern Gulf Coast and Southeast…

…Pockets of rain/freezing rain over parts of the Central Appalachians
and Northeast…

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

Daily weather maps. I try to keep the below three maps updated. The Day 1 map updates twice a day and the Day 2 and 3 maps update only 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.

SUNDAY AFTERNOON, EVENING AND OVERNIGHT

MONDAY

TUESDAY

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.

A storm over the Southeast and Mid-Atlantic will move northward along the
East Coast to Cape Cod by Monday, then move into the Canadian Maritimes by
Tuesday. The system will produce snow over parts of the Ohio
Valley/Central Appalachians and heavy snow will start over the Northeast
on Sunday evening into Monday. Pockets of rain/freezing rain will also
develop overnight Sunday into Monday over parts of The Central
Appalachians into the Northeast. The snow will result in reduced
visibility and hazardous driving conditions.
Meanwhile, rain will develop over parts of the Tennessee/Ohio Valleys and
the Mid-Atlantic by Sunday evening. Additionally, showers and moderate to
severe thunderstorms will develop over the Southeast. Therefore, the SPC
has issued a Marginal Risk of severe thunderstorms over parts of the
Eastern Gulf Coast/Southeast through Monday morning. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, a few tornadoes, and a minimal threat of hail.

In addition, the storm will produce moderate to heavy rain. Therefore, the
WPC has issued a Marginal Risk of excessive rainfall over parts of the
Eastern Gulf/Southeastern Coast from Sunday through Monday morning. The
associated heavy rain will create localized areas of flash flooding,
affecting areas that experience rapid runoff with heavy rain. The threats
of severe thunderstorms and excessive rainfall will end on Monday.
In the meantime, a front over the Central/Southern Rockies into the
Southwest will move southward to Northwest Mexico by Monday. The system
will produce snow over the Intermountain Region/Great Basin and expand
into the Southwest overnight Sunday. On Monday, the snow will develop over
parts of the Southwest and into the Central/Southern Rockies. The snow
will continue over parts of the Southwest and Central/Southern Rockies
overnight Monday.

On Tuesday, moisture from the Western Gulf of Mexico will stream northward
over the Southern Plains producing showers and severe thunderstorms.
Therefore, the SPC has issued a Slight Risk of severe thunderstorms over
the Central Gulf Coast and the Southeast on Tuesday. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a few tornadoes.
Moreover, the showers and thunderstorms will produce heavy rain.
Therefore, the WPC has issued a Slight Risk of excessive rainfall over
parts of the Western Gulf Coast and Lower Mississippi Valley. The
associated heavy rain will create mainly localized areas of flash
flooding, with urban areas, roads, and small streams the most vulnerable.
Furthermore, on Tuesday, the system will produce light to moderate snow
over parts of the Southern High Plains into northwest Arkansas.

Also, on Tuesday, upper-level energy move over the Northern Rockies into
the Northern Plains will produce light snow over parts of the Northern
Intermountain Region/Northern Rockies and Northern High Plains into the
Great Basin/Central Rockies. The snow will result in reduced visibility
and hazardous driving conditions.

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