Weather Forecast: Today, Tonight, Tomorrow, Next Day, Five Days, 10 Days for the U.S. with some maps for the World posted January 18, 2023

Updated at 3:58 p.m. EST Wednesday, 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
335 PM EST Wed Jan 18 2023

Valid 00Z Thu Jan 19 2023 - 00Z Sat Jan 21 2023

...Heavy Snow from the Central Plains into the Upper Great Lakes and areas
of rain/freezing rain over parts of the Middle Mississippi Valley to parts
of the Northeast...

...There is a Slight Risk of severe thunderstorms and excessive rainfall
over parts of Middle/Lower Mississippi, Tennessee, and Western Ohio
Valleys through Thursday morning...

...There is a Slight Risk of severe thunderstorms over parts of the
Southeast on Thursday...

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.

WEDNESDAY AFTERNOON, EVENING, AND OVERNIGHT

THURSDAY

FRIDAY

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

ATMOSPHERIC RIVERS

This tells us what is approaching the West Coast. Click HERE to update If I have not gotten around to doing the update.   Here is some useful information about 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 strong storm over the Central Plains will move northeastward to the
Great lakes by Thursday afternoon, then move off the Northeast Coast by
Friday morning. The winter storm over Central Plains will track into the
Great Lakes by Thursday with a mixture of heavy snow, sleet, and freezing
rain. Snow and some ice will expand into the Northeast on Thursday and
continue into Friday. Intense snowfall rates greater than 2 inches per
hour are possible at times within the heaviest snow bands from Nebraska
through northern Michigan. The heavy snowfall could result in additional
snowfall exceeding 12 inches in some areas, producing event total snowfall
in excess of 15 inches. These heavy snowfall rates combined with winds
gusting up to 35 mph will result in dangerous travel due to blowing snow
with near-zero visibility at times.

An icy wintry mix of freezing rain and some sleet is likely from northern
Kansas through southern Iowa. The icy wintry mix will produce slippery
roads/sidewalks, with isolated power outages and tree damage also possible
where the heaviest ice accumulates.

This system will then move into the Northeast Thursday night through
Friday night. Heavy snow rates of 1 plus inches per hour will create
dangerous travel early Friday morning across New England, with lighter
snows continuing through much of Friday. Furthermore, freezing rain may
lead to ice accumulations of more than 0.1 inches, especially in the
Catskills and Berkshires, leading to slippery travel.

Furthermore, the system will produce showers and severe thunderstorms from
parts of the Ohio Valley to the Lower Mississippi Valley. Therefore, the
SPC has issued a Slight Risk of severe thunderstorms over parts of the
Middle/Lower Mississippi, Tennessee, and Western Ohio Valleys through
Thursday morning. The hazards associated with these thunderstorms are
frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.

Accompanying the thunderstorms will be heavy rain. Therefore, the WPC has
issued a Slight Risk of excessive rainfall with these thunderstorms over
parts of the Middle/Lower Mississippi, Tennessee, and Western Ohio Valleys
through Thursday morning. The associated heavy rain will create mainly
localized areas of flash flooding, with urban areas, roads, and small
streams the most vulnerable.

The area of severe thunderstorms will cover a much smaller area on
Thursday. Therefore, the SPC has issued a Slight Risk of severe
thunderstorms over parts of the Ohio Valleys from Thursday into Friday
morning. The hazards associated with these thunderstorms are frequent
lightning, severe thunderstorm wind gusts, hail, and a few tornadoes.
However, the threat of excessive rainfall ends on Thursday.

Meanwhile, a front moves into the Pacific Northwest, producing coastal
rain and higher-elevation snow over the Pacific Northwest and Northern
California. The rain will end over the Northwest/Northern California Coast
on Wednesday. The snow will move into the Northern Intermountain Region
and the Great Basin. On Thursday, the rain and higher-elevation snow will
move southward from Central California to parts of Southern California by
late Thursday afternoon. The rain and snow will end over California by
Friday morning. Overnight Thursday, the snow over parts of the Great Basin
will move into parts of the Southwest by Friday morning. By Friday
evening, the snow will expand into parts of the Central/Southern Rockies.

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.

Starting with the 6 to 10 Day Outlooks

Now let us look a bit farther out to 8 to 14 days. Notice the overlap which reflects the difficulty of predicting exactly when events with happen.

HAZARDS OUTLOOKS

Click here for the latest complete Day 3 -7 Hazards forecast which updates only on weekdays.  Once a week probably Monday or Tuesday I will update the images. I provided the link for readers to get daily updates on weekdays. Use your own judgment to decide if you need to update these images. I update almost all the images Friday Night for the weekend edition of this Weather Report.  So normally readers do not need to update these images but if the weather is changing quickly you may want to.

Month to Date Information

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

World Forecast

Below are the current precipitation forecast and the 10-Day forecasts for temperature and precipitation. Updates and additional information can be obtained HERE

Much of this information is provided by the University of Maine. They draw upon many different sources.

Worldwide Tropical Forecast (This is a NOAA Product)

This graphic updates on Tuesdays) If it has not been updated, you can get the update by clicking here  Readers will only have to do that if they are reading this article much later than the date of it being published.

 I hope you found this article interesting and useful.

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