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(CNN)The current Saharan dust episode is leading to the worst dust storm in the Caribbean in decades.

Over the weekend, Saharan dust moved into the Caribbean. By Monday, it had changed the tropical blue skies into a hazy brown-gray color.
On Tuesday, this sunset enhancing, blue sky limiting, tropical threat reducing dust plume continues its 5,000-mile journey toward the US.
A vast cloud of Sahara dust blankets the city of San Juan, Puerto Rico on Monday.

But before it does, it is leaving these pristine islands with a few more days with one the most significant dust events seen in the Caribbean.

"It is definitely historic," Olga Mayol-Bracero, a researcher at the University of Puerto Rico told CNN Weather. "We knew we were going to be in an extraordinary situation."
Many of her colleagues across the Caribbean said they have not seen air quality conditions this bad in their entire careers.

Aerosols, measured in PM10, at Mayol-Bracero's research station in northeastern Puerto Rico, have never reached the levels they have seen the past few days. Records at this station go back 15 years.

It is unusual that the dust is forecast to travel over central America and the US with such high concentrations, Claire Ryder, NERC Independent Research Fellow at the University of Reading, told CNN Weather.

"Usually by the time dust from the Sahara has traveled this far, much of it has been dispersed and/or deposited to the ocean so that typically this long-range transport to the Americas would involve much lower concentrations," Ryder said.

The initial dust outbreak was driven by a few different smaller storm systems over central and west Africa. Several of these thunderstorms caused downdrafts and large-scale haboobs (dust storms) to develop. This led to a large amount of dust being uplifted into the atmosphere from the Sahara, according to Ryder.

At the same time, these smaller dust storms were happening. The African Easterly Jet, strong winds higher in the atmosphere which usually transports dust westwards, was anomalously weak this June.
Meaning a larger amount of dust than usual was able to accumulate just off the west coast of Africa. It was able to then was transported westwards in a very dense plume when the jet picked up speed again.

This increase in dust thickness has led to the dirty looking skies seen across the Caribbean and the historically poor air quality.

Areas of the Caribbean known for their pristine water and blue skies turned a brownish-gray in Puerto Rico on Monday.
"It's certainly the most intense, large-scale dust event I have ever seen," Ryder said.

The dust layer is so thick you can see it on weather satellites. Astronauts have also gotten a good view of it from the international space station.

"We flew over this Saharan dust plume today in the west central Atlantic,' Astronaut Doug Hurly tweeted on Sunday. "Amazing how large an area it covers!"

Col. Doug Hurley
✔
@Astro_Doug
We flew over this Saharan dust plume today in the west central Atlantic. Amazing how large an area it

"Hazy skies and low visibilities will continue today as a significant Saharan dust event continues across the islands," the National Weather Service in San Juan said Tuesday morning.

The Saharan dust will reach the US by Thursday morning
On Wednesday, the dust is forecast to move across the Gulf of Mexico toward Texas.

This dust forecast shows the predicted conditions on Thursday. Darker browns are an indication of where the thickest dust layer will be found.

Thursday morning, people in places like Brownsville in Texas and Houston will likely wake up to a beautiful sunrise and a hazier than normal sky.
Forecast models don't show the thicker concentration blanketing most of Central America and Mexico Thursday.

This dust forecast shows the predicted conditions on Sunday. Darker browns are an indication of where the thickest dust layer will be found.

This thicker layer is likely to reach Texas by Friday and then take a turn to the east. If the forecast model is right, it will move over most of the Southeast and MidAtlantic states over the weekend.
Once it arrives, here are the top 3 ways you'll notice next week's Saharan dust in the US, wrote CNN meteorologist Tyler Mauldin.

A difference in the sky
One of the first things you'll notice when the Saharan dust layer arrives is that your typical blue sky will have more of a milky haze to it.
That milky haze is the Saharan dust. Those tiny dust particles lofted tens of thousands of feet in the air do a great job of scattering the sun's rays at dusk and dawn, too, which gives way to stunning sunrises and sunsets.
So, grab those cameras!
Less tropical activity in the Atlantic
The Saharan dust to a hurricane is nothing more than extremely dry air. Hurricanes hate dry air. A hurricane needs a hot, humid and calm environment.
As long as the Saharan dust is around ... it's likely you'll see the National Hurricane Center watching fewer areas in the tropics.

Dust plume allergies
The tiny dust particles that give way to beautiful sunrises and sunsets and help suppress hurricane development don't always stay at 30,000 feet. Sometimes particles can make their way to the surface, greatly affecting those with sensitive allergies.
If you find yourself reaching for a tissue this week -- or your iPhone to post yet another awesome sunset pic to Instagram -- thank the Saharan dust.

https://www.cnn.com/2020/06/23/weather/saharan-dust-plume-caribbean-us-forecast/index.html


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We had Sahara dust all over ours cars and stuff in Germany when we lived there. Pretty neat. had no idea about it until after the fact when they said why there was dust all over everything.


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Jesus said, My sheep hear me and they know my voice.

or something close to that.

If we are in the end times, middle of the end times, then no event like this, (weather, earthquake, 70 mph wind storms from 6 weeks ago) (and this dust storm)

Likely don't have a spiritual element to them and significance, may bring about an event.

Some board members are 60+ years, or older than me,
Do any of you remember the last time the Sahara Dessert invaded North America? I don't, but it seems like these "never happened before" events happen every week anymore.

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Originally Posted By: THROW LONG
Jesus said, My sheep hear me and they know my voice.

or something close to that.

If we are in the end times, middle of the end times, then no event like this, (weather, earthquake, 70 mph wind storms from 6 weeks ago) (and this dust storm)

Likely don't have a spiritual element to them and significance, may bring about an event.

Some board members are 60+ years, or older than me,
Do any of you remember the last time the Sahara Dessert invaded North America? I don't, but it seems like these "never happened before" events happen every week anymore.



The Sahara has been throwing up sand and dust forever. Sometimes it is worse than others. The northern states don't usually get much. The trade winds tend to blow it straight towards the Gulf of Mexico, so say North Carolina south can have air quality issues. North or South, it will give intense sunrise and sunset opportunities.


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I went for my normal morning walk but it wasn't normal in that I only walked about 2 miles rather than 6. You could see the dust in the clouds and sky. Dry eyes, harder to breath. I decided it best to cut it short.


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Click on the link for some pretty crazy pics....

Biggest Sahara dust storm in 50 years hits the US
By Natalie O'NeillJune 25, 2020 | 2:40pm | Updated


Isla Verde beach in Puerto Rico seen as a sand storm from the Sahara Desert sweeps over San Juan.

Gabriella N. Baez/REUTERS

This storm is breath-taking.

The massive Sahara dust cloud that caused air quality problems in the Caribbean hit the US for the first time Thursday, according to reports.

The dense dust plumes — which are big enough to be picked up via satellite images — struck Mississippi’s gulf coast after churning thousands of miles from the African desert, according to Jackson-based WJTV.

“This is the most significant event in the past 50 years,” said Pablo Méndez Lázaro, an environmental health specialist with the University of Puerto Rico, according to the outlet.

Nicknamed the “Gorilla Dust Cloud” for its stunning size, satellite images showed the storm darkening the sky and rolling northwest Thursday morning. It appeared to also be headed towards Louisiana and parts of Texas.

The highly concentrated plume caused air quality in the Caribbean to reach “hazardous” levels as it swept through the area Wednesday, experts said.

Health officials warned that the weather event could weaken the respiratory systems of people battling COVID-19, along with some healthy people. They recommended that residents in the impacted areas stay in inside.

https://nypost.com/2020/06/25/biggest-sahara-dust-storm-in-50-years-hits-the-us/


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Images in the link....

The Sahara dust storm has reached the US mainland. Here's what it looks like.

DOYLE RICE | USA TODAY
4 hours ago

A huge plume of dust and sand, blown by the wind from the Sahara Desert, has finally reached the U.S. mainland.

It's one of the most significant Saharan dust events in decades, forecasters said.

The densest plume of dust began to emerge off western Africa last weekend and has now moved into the Gulf of Mexico and the South, the Weather Channel said.

The mass of extremely dry and dusty air known as the Saharan Air Layer forms over the Sahara Desert and moves across the North Atlantic every three to five days from late spring to early fall, peaking in late June to mid-August, according to the National Oceanic and Atmospheric Administration.

It can occupy a roughly 2-mile thick layer in the atmosphere, the agency said.

"The main impacts of the Saharan dust are a whitening of the sky during daylight hours, redder sunsets, and decreased air quality," the National Weather Service said.

Here are a few images from social media of the dust as it settled over the southern U.S.

https://www.usatoday.com/story/news/nati...and/3264731001/


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Georgia skys looking pretty grey today.


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Looks like some serious dust.....



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Originally Posted By: THROW LONG
Jesus said, My sheep hear me and they know my voice.

or something close to that.

If we are in the end times, middle of the end times, then no event like this, (weather, earthquake, 70 mph wind storms from 6 weeks ago) (and this dust storm)

Likely don't have a spiritual element to them and significance, may bring about an event.

Some board members are 60+ years, or older than me,
Do any of you remember the last time the Sahara Dessert invaded North America? I don't, but it seems like these "never happened before" events happen every week anymore.


I'm steamin towards 64yrs old and honestly TL, I never heard of em. I'm sure the US has been hit by em before but most prob not anywhere close to the size/density of this one. But if so, I would think not up this far north in "The Land". Just a guess.


Let this sink in..... On 12-31-23 it be will 123123.
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Supposedly its here today.

Blue sky and clouds.

So idk.


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It made a nice sunset yesterday, here.


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I walk. I very much felt it the past few mornings. Hard to breath, eyes all dry.

I normally walk 5-6 miles a morning. Yesterday I went a mile out and said screw it....so walked 2 miles. Just didn't seem healthy. Felt like I had mud in my lungs.


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Another round of Saharan dust reaches the US after 1st huge plume dissipates

LOS ANGELES — Clear, blue skies are turning brown — again.

A historic Saharan dust plume blanketed the deep South last week, and another plume is now impacting the Gulf Coast.

This new dense air mass developed off Western Africa and traveled nearly 5,000 miles across the Atlantic Ocean. It reached the United States on Tuesday, bringing dust particles to the deep Southern United States.

The second round of dust lifted to the north into the Gulf of Mexico, according to NASA’s GEOS-5 model, and will continue to spread across the South.

A Saharan Air Layer (or SAL) is a mass of dry and dusty air, which forms over the Sahara Desert and moves over the North Atlantic.

Frank Marks, director of the Hurricane Resarch Divsion at NOAA’s Atlantic Oceanagraphic and Meteorological Laboratory, said that the plumes are frequent in the summer, especially in June and July, and take about 10-12 days to cross the Atlantic.”

The one we had was probably the most intense on record so far, and they’ve been keeping records of these dust outbreaks probably about 70 years,” Marks said of last week’s dust plume.

Several numerical models predict that the second plume’s track will head toward the plains states, before turning eastward to impact the Southeast and Mid-Atlantic.

Marks said the most recent round of dust looked more diffused on satellite, so it is likely be less concentrated. “It’s intense, but I wouldn’t say it’s intense as the one that just came by,” Marks said.

The second plume also may cause deterioration in air quality across the United States.

According to the environmental consulting firm Sonoma Technology, “A moderate-density plume of Saharan dust is currently impacting states in the Gulf region, leading to elevated particle levels, especially in Texas and Louisiana.”

Sonoma Technology added, “Light southerly winds will continue to transport dust into these regions today and tomorrow. As a result, Air Quality Index, or AQI, levels are expected to be Moderate today and tomorrow throughout Louisiana, much of east Texas, and parts of Oklahoma, Arkansas, Mississippi, Alabama, and Florida.”

The air quality firm said the plume isn’t as dense as the dust plume that impacted the eastern U.S last weekend, but air quality levels will likely remain in the moderate range throughout the region into the weekend. “Dust could make it as far inland as Kansas, Missouri, Iowa, and Illinois,” Sonoma Technology wrote.

While the sky will appear hazy, the second Saharan dust plume has the potential to produce colorful sunsets in the South.

According to NOAA, the dry layer of air usually travels about one mile above the ocean surface, and can inhibit tropical cyclones and activity.Leftover air from last week’s Saharan dust plume has helped suppress thunderstorm development in Florida, causing temperatures to climb in the state.

On June 24, the first dense Saharan mass reached the Caribbean. NOAA shared a satellite image of the dust plume. “This particular plume has reportedly spread over the Caribbean, reducing visibility in some areas to five miles.”

Meteorologist Jeff Beamish wrote, “The Saharan air layer’s definitely not a new phenomenon. It happens yearly, with varying amounts of dust traversing the Atlantic basin.”

https://fox6now.com/2020/06/30/another-r...dissipates/amp/


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I live in Atlanta. I have yet to see any dust. Friday was a little grey, but all the other days...blue skies with clouds and pop up storms.


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The Largest on record!!! Coming to a theater near you.

Incredible Sahara Dust Plume Sweeping Across The Atlantic Is Largest on Record
EVAN GOUGH, UNIVERSE TODAY
14 JULY 2020

Dust plumes are a natural phenomenon, part of Earth's nutrient cycle. They occur when high-velocity winds pick up tiny dry particles from the Earth's surface and carry them long distances. Every summer, dust plumes from Africa's Sahara desert travel across the Atlantic Ocean.

They're usually not this big, and they often sink into the ocean. But this one's coming right to America.

Keen satellite eyes have been watching the plume as it developed and headed out to sea. The ESA's Copernicus Sentinel and Aeolus satellites have tracked the plume's progress. The plume is so big, it's earned the nick-name Godzilla.

The meteorological name for the plume is the Saharan Air Layer (SAL). The SAL forms between late Spring and early Autumn. Strong surface winds pick up the dust and carry it into the air and over the Atlantic Ocean.

If conditions are right, the dust can be transported into the upper troposphere, and carried all the way to the Caribbean or the United States, an 8,000 km (5,000 mile) journey.

Records of the Saharan dust plume go back about 20 years, and this one ranks as one of the biggest. It's common for these dust plume to reach the US, but this one is extraordinarily large. The NOAA says that the plume is about 60 percent to 70 percent larger than average.

The image below is from June 19th, 2020. It's a composite image from the Copernicus Sentinel-5P satellite and the Aeolus Satellite. The base layer is bright yellow aerosol index from 5P and Aeolus aerosol and cloud formation is laid on top.

The Aeolus data is unique because it's the first satellite designed to acquire profiles of Earth's winds on a global basis. It helps build much more sophisticated forecasts and models, partly by determining wind heights with greater accuracy. It can determine the height at which the dust layer is travelling, and in this image, Aeolus shows that most of the dust was 3 - 6 km (1.8 - 3.7 miles) above the ground.

The different space agencies now have a fleet of satellites monitoring Earth, and they can closely watch things like this dust plume. Each satellite can have a different mix of instruments, and together they give a more complete understanding of Earth's atmospheric happenings.

Though its appearance in satellite imagery is foreboding, the dust plume might actually be good news. According to the NOAA, these plumes can actually inhibit the formation of hurricanes. And it can also prevent the ones that do form from becoming more powerful and destructive.

The dust is also a nutrient source for phytoplankton, the tiny marine plants that float near the surface of the ocean. Phytoplankton is critical to the food web, providing food for animals higher up the food chain. Phytoplankton is also photosynthetic, creating oxygen for the biosphere.

The dust plumes also replenish nutrients as far away as the Amazon rain forest. The heavy and frequent rains there can deplete essential nutrients. Without these plumes, the Amazon likely wouldn't exhibit such stunning biodiversity and may not have such an intricate food web.

But there is bad news associated with the dust plume. The haze can trigger air quality alerts, and can be a health risk, especially for people with underlying health conditions. That's partly because the dust has travelled so far that many of the larger particles have fallen to the surface. What's left is the smaller particles, which are most dangerous to people.

But for many people in the path of the plume, the part they'll remember is the sunsets. With all that dust in the air, the sunsets and sunrises will look stunning.

https://www.sciencealert.com/watch-this-...-atlantic-ocean


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Wasn't this like a few weeks ago?


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I came here looking for an update. I heard a bunch about it as it hit the southern US, then- nothing.


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Originally Posted By: Clemdawg
I came here looking for an update. I heard a bunch about it as it hit the southern US, then- nothing.



It finally blew away. For four or 5 days you could see the dust in the sky, especially at dawn and dusk. The clouds had a brown tint. I walk in the mornings. I had to curtail that for a few days. After a mile or so it was hard to breath due to sucking in dirt. My eyes would get really dry.


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Are you sure the dust wasn't coming from you? I mean you are getting OLD wink


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Originally Posted By: GMdawg
Are you sure the dust wasn't coming from you? I mean you are getting OLD wink



I hadn't thought of that. Dang, you could be right!


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Originally Posted By: FloridaFan
Wasn't this like a few weeks ago?


The last one was called a dust storm. This one hitting is a dust plume.

Either way more dust is comin.


Last edited by TTTDawg; 07/15/20 07:35 PM.

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Damn, bro...


harsh much?


rofl


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All we are is dust in the wind, dawg.


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Originally Posted By: Clemdawg
Damn, bro...


harsh much?


rofl


GM wasn't trying to be rude, that was the voice of experience! thumbsup


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Originally Posted By: TTTDawg
Originally Posted By: FloridaFan
Wasn't this like a few weeks ago?


The last one was called a dust storm. This one hitting is a dust plume.

Either way more dust is comin.




I talked about a plume not long ago. People got mad at me. LOL


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Sure I do. I knew peen would know it was a joke.


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me too.

hence, the little roller in my post.


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