It is difficult to find a more comprehensive Weather Outlook anywhere else with the ability to get a local 10-day Forecast also.
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 update can be found here if I have not updated it.
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Sun Feb 18 2024
Valid 12Z Sun Feb 18 2024 – 12Z Tue Feb 20 2024…There’s a Moderate Risk of Excessive Rainfall leading to Flash Flooding
over portions of Southern California……Heavy Snow likely over Sierra Nevada and Shasta Siskiyous…
…Warming trend continues across Central U.S. through midweek…
A closed upper-level low will direct a plume of subtropical moisture into
California over the next few days. A low pressure system at the surface
will focus the moisture along its attendant surface fronts as it makes
it’s way into the state. Heavy Rainfall is expected for the coastal areas
as well as much of the inland valleys of northern/central California and
into the windward foothills of the Sierra beginning this evening. Some
instability will work it’s way into portions of southern California
tonight and continue into Monday morning, which will lead to the chance
for thunderstorms and increased rain rates. Thus, a Moderate Risk of
Excessive Rainfall leading to Flash Flooding (level 3/4) is in effect for
portions of Santa Barbara County tonight and expanding into Ventura on
Monday as the heavy rain drifts southward along a cold front. Slight Risks
(level 2/4) are in effect for Humboldt down to Ventura today and then
expanding down to Orange through Tuesday.Meanwhile, heavy snow will develop over the Sierra and Shasta Siskiyous
tonight. This snowfall is expected to continue into Tuesday when the
Pacific moisture feed is likely to end. Between 2-4 feet of snow are
forecast for the Sierra and Shasta by Tuesday morning with locally higher
amounts possible. Elsewhere, a stalled out surface front will focus
showers and thunderstorms across the Florida Peninsula today. A stripe of
1-2 inches of rain is probable across central/southern portions of the
peninsula. Lake effect snow showers continue downwind of the Great Lakes
through Sunday night. An upper ridge with embedded shortwave energy will
support a warming trend across the Great Plains, Mississippi Valley and
Midwest over the next several days.
To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.
Above is a 72 hour animation of the forecast. 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 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
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.
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. And remember this shows natural snow. Ski resorts also make their own snow.
Day 1
Day 2
Additional snow information can be found here, here, here, and here. The second link provides animations.
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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| 8–
14 |
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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 [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.
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| I hope you found this article interesting and useful. |
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