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 U.S. outlooks and a six-day World weather outlook which can be very useful for travelers.
First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Sun Sep 08 2024
Valid 12Z Sun Sep 08 2024 – 12Z Tue Sep 10 2024…Dangerous heat continues to impact portions of southern California and
the Southwest through Monday……Heavy rain and scattered instances of flash flooding remain possible
along the Gulf Coast and parts of the Southeast over the next several
days……Below average temperatures forecast across much of the Midwest and East
through the beginning of the week…Potentially dangerous and record-breaking heat is forecast to continue
across southern California as highs soar into the upper 90s and triple
digits away from the immediate coastline. Excessive Heat Warnings remain
in effect through Monday as a gradual cooldown commences on Tuesday. Highs
into the triple digits are also forecast throughout the remainder of the
Desert Southwest, but not considered as anomalous as values forecast
across southern California. Elsewhere, above average temperatures are
anticipated across the northern Great Basin and northern Plains as
upper-level ridging slides eastward. Heat will wane across eastern
Washington and neighboring states by Tuesday as the core of the
late-summer temperatures concentrate over the northern Plains. Highs in
the north-central U.S. are forecast to reach into the low-to-mid 90s early
this week, which equates to around 10 to 20 degrees above average for this
time of year. Additionally, sultry heat and humidity will impact southern
Florida once again today, where Heat Advisories have been issued due to
maximum heat indices forecast to near 110 degrees. Remember to follow
proper heat safety by staying hydrated, limiting strenuous outdoor
activity during peak daytime heating, and checking on vulnerable
individuals.Much of the Nation is anticipated to be void of notable precipitation over
the next few days, with the Gulf Coast and parts of the Southeast being
the lone exception. A lingering stationary front and developing area of
low pressure in the western Gulf of Mexico will focus heavy rainfall
potential from the coastal Carolinas to the Florida Peninsula and entire
Gulf Coast region. Scattered flash flooding is possible where the heaviest
rainfall occurs, with urban and low-lying areas most at risk to flooding
impacts. Otherwise, isolated flash flooding is also possible in parts of
the Intermountain West through early this week due to widely scattered
thunderstorms developing in tandem with daytime heating.Large surface high pressure extending from the southern Plains to the
Midwest and East throughout Tuesday will not only supply sunny and dry
conditions for much of the Lower 48, but well below average temperatures
as well. In fact, daily record lows are possible between the Midwest and
Mid-Atlantic this morning as temperatures dip into the 40s for most
locations. Patchy frost is possible in low lying protected areas. As this
autumnal airmass moderates somewhat early this week, afternoon
temperatures will gradually warm back into the mid-80s by Tuesday.
To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.
Learn about wave patterns HERE.
Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.
Please click on “Read More” below to access the full Daily Report issued today.
| Notices: What would you like to learn about? Please provide that to me via the comment section at the end of the article. |
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
We have a new animation of the forecast which shows how things may play out over the next 60 hours. To update click ANIMATION. Doing so will get you to the dashboard. You can then step through the animation or hit LOOP on the upper right of the display. You will have to hit the back arrow ← at the top left on your computer to get back into this article. It is a little more trouble than before but I think NOAA scrapped the animation routine I was using so we have to keep up with “progress”.
The NWS Climate Prediction Center’s: Watches, Warnings, and Advisories plus other information can be found HERE. That takes you to the NWC Severe Weather Site. From there you can select among many categories of information. Remember to hit the back arrow ← at the top left of your screen to return to 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.
Below is the current five-day cumulative forecast of precipitation (Updates can be found HERE)
Ski SnowReports will Resume in the Fall.
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. These links may also be useful for those viewing this article on a cell phone or other small screen.
| 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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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 [that website is has been intermittent so be patient]
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. Note that unless there is an out-of-season storm the below images will not update until the National Hurricane Center starts their seasonal update of these maps on June 1. I include them simply because there can be an out-of-season event in which case it should show up in these maps.
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| I hope you found this article interesting and useful. |
