This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a six-day World weather outlook which can be very useful for travelers.
We start with the U.S. Information. That is the longest part of the article. Then we have a short section on World Weather and then we address the Tropics. When there are tropical storms that might impact the U.S. we provide more detailed information which updates frequently on those storms.
Please click on “Read More” below to access the full report as I have moved the highlights into the body of the report where it is followed by the Today, Tomorrow and the Next Day maps and a lot more. I will try to feature the most important graphic in the lede paragraph on the home page. But there are often multiple maps that are very important so it is best to read the full article.
| Notices: We recently published a review of October weather worldwide and you can access that article HERE. And a review of October weather for the U.S. which you can access HERE. We have now published the NOAA Seasonal Update which you can access HERE. What would you like to learn about? Please provide that to me via the comment section at the end of the article. |
First the highlights from the NWS.
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Tue Nov 28 2023
Valid 12Z Tue Nov 28 2023 – 12Z Thu Nov 30 2023…Active lake-effect snowfall downwind of the Great Lakes will continue
Tuesday, producing locally heavy snowfall amounts……Below average temperatures continue for the East Coast and South with
freeze-related advisories in effect from the Florida Panhandle to coastal
South Carolina……Mostly dry conditions for the western and central U.S. as a warm up
comes to the Plains/Mississippi Valley…
Now more detail on the 48-Hour Forecast (It is a 48 to 72 Hour Forecast actually)
Daily weather maps. The Day 1 map updates twice a day and the Day 2 and 3 maps update only once a day. These maps update automatically. But if that does not happen, you can get updates by clicking HERE
TODAY (or late in the day the evening/overnight map will appear) (Key to surface fronts shown on maps and you will then also be able to insert a city name or zip code and get a local NWS forecast).
TOMORROW
NEXT DAY
This animation shows how things may play out over the next 60 hours. To update click here.
The NWS Climate Prediction Center’s: Watches, Warnings, and Advisories plus other information 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.
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
Embedded shortwaves in northwesterly cyclonic flow rounding a deep
upper-level low over Canada will continue to produce snow downwind of the
Great Lakes Tuesday, particularly Lakes Erie and Ontario. Here, additional
forecast snow totals of 8-16 inches, with locally higher amounts, are
expected through Wednesday morning, bringing storm total snowfall well
above 2 feet for some locations. Heavy snow rates and gusty winds will
make travel treacherous. Some lighter amounts of around 2-4 inches will
remain possible downwind of Lakes Superior and Michigan. Much of the rest
of the country will remain dry over the next couple of days. One exception
will be in coastal California where an approaching upper-level
trough/Pacific system will bring some light to moderate showers. As this
upper-level trough continues southeastward, some lower elevation/valley
rain and higher elevation snow will be possible by late Wednesday for the
Four Corners region. Any snow accumulations look to remain light and
limited to higher mountain peaks, at least through Thursday morning.
Increasing moist southerly flow from the Gulf ahead of this system should
also bring some showers and thunderstorms to portions of the Southern
Plains/Lower Mississippi Valley Wednesday night.The other main story over the next couple of days will be the chilly,
below average temperatures for the East Coast and portions of the South.
Forecast highs Tuesday and Wednesday will be in the 20s and 30s for New
England, 30s and 40s for the Mid-Atlantic, 40s and 50s for the Carolinas,
and 50s and 60s from southern Texas along the Gulf Coast into the
Southeast and all but south Florida. The coldest morning lows of the
season so far are expected from the Mid-Atlantic through the Southeast
Wednesday morning, with widespread 20s forecast. Temperatures may dip to
near or below freezing as far south as the Florida Panhandle/north
Peninsula northeastward through coastal South Carolina. A Freeze Watch has
been issued for the region as these temperatures may damage and kill
sensitive crops and vegetation. Meanwhile, upper-level ridging moving
eastward over the western Plains as upper-level troughing gives way over
the Midwest will bring a warm-up to central portions of the country. Highs
will be well above average and in the 40s and 50s for the Northern and
Central Plains. After one more chilly day Tuesday, temperatures will warm
into the 40s and 50s for much of the Middle and Upper Mississippi Valley
Wednesday. Conditions will be mostly seasonable across the West, with 30s
and 40s for the Rockies and Great Basin, 40s and 50s for the Pacific
Northwest, 50s and 60s for California, and 70s for the Desert Southwest.
Learn about wave patterns HERE.
Below is the current five-day cumulative forecast of precipitation (Updates can be found HERE)
Ski SnowReports
New Feature – Ski Reports. It is difficult to find reports that auto-update on-screen (and they are very long) but these links will get you to them – If you have additional suggestions make them in the comments section after every Econcurrents Article and we may add those links. We will try to not have too much overlap as that can add to the confusion.
Snow Forecasts.
Day 1
Day 2
Here is another map but it is not the existing level of snow but the snowfall in the recent six hours.
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.
| Days 6 – 10 (shown in Row 1) | Days 8 – 14 (Shown in Row 2) | Weeks 3 and 4 (Shown in Row 3 but updates only on Fridays) |
| https://www.cpc.ncep.noaa. gov/products/predictions/610day/ | https://www.cpc.ncep .noaa.gov/products/predictions/814day/ | https://www.cpc.ncep.noaa.gov/products/predictions/WK34/ |
Showing the actual maps. They should now update automatically. The Week 3 – 4 Outlook only updates on Fridays. So below is what I call the Intermediate-term outlook. On Fridays, it extends out 28 Days. That declines day by day so on Thursday it only looks out 22 days until the next day when the Week 3 – 4 Outlook is updated and this extends the outlook by one additional week.
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10
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| 8–
14 |
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| 3–
4 |
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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.
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 Day 1 -3 and 4-6 forecasts for temperature and precipitation. Updates and much additional information can be obtained HERE
World Temperature Anomalies
World Accumulated Precipitation
This information is provided by the University of Maine. They draw upon many different sources. There is a lot of information available at the link provided. I have just provided two useful forecasts. There are probably over a hundred different forecasts available from this source.
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.
Information on Tropical Storms can be found HERE. Western Pacific information can be found HERE.
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| I hope you found this article interesting and useful. |
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