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Flooding & sulphuric smells at rivers in Iceland linked with change in geothermal & volcanic activity

Desirai Thompson
Grapevine.is
Wed, 01 Sep 2021 12:00 UTC
iceland river
© Vísir/Jóhann K.
The river Skaftá in Southern Iceland has been seeing changes in recent days indicating a flood has begun.

Electrical conductivity in the river has increased steadily over the past two days, an indication that geothermal factors are involved. The water level has also risen in the past few hours, according to MBL. According to the Icelandic Meteorological Office, sulphuric smells have also been reported in the vicinity of Skaftá and Hverfisfljót.

Residents and passersby in the area are encouraged to remain diligent and apprise themselves of potential changing conditions in the area. Flooding over the riverbank and across nearby roads is possible in the next few days.

Comment: Regarding activity at Vatnajökull, Wikipedia notes:
In more modern times, the volcanoes continue to erupt beneath the glaciers, resulting in many documented floods. One jökulhlaup in 1934 caused the release of 15 km3 (3.6 cu mi) of water over the course of several days.[5] The volcanic lake Grímsvötn was the source of a large jökulhlaup in 1996.[6] There was also a considerable but short-lived eruption of the volcano under these lakes at the beginning of November 2004.[7] On 21 May 2011 a volcanic eruption started in Grímsvötn in Vatnajökull National Park at around 7 p.m.[7] The plume reached up to 17 kilometres (11 mi).[7]
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Flooding in 6 districts of Bangladesh worsens


The Daily Star (Bangladesh)
Wed, 01 Sep 2021 16:34 UTC
Flood situation worsens as 100,000 people maroo
© UNBFlood situation worsens as 100,000 people marooned in Sirajganj
With thousands of people still marooned by floods, river erosion has taken a serious turn at least in six districts.

Many houses, vast areas of cropland and other structures have already been devoured by rivers, while many other structures are at risk.

The flood-hit people are passing hard days amid shortage of food and drinking water, though government officials concerned are saying that measures have been taken to distribute relief materials.

A bulletin of Flood Forecasting and Warning Centre said 14 rivers in the country were flowing above the danger level yesterday.

"In next 24 hours, the flood situation in low-lying areas of Kurigram, Gaibandha, Jamalpur, Bogura, Tangail, Sirajganj, Pabna, Manikganj, Rajbari, Shariatpur and Faridpur districts may deteriorate," it said.

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Flash floods destroy roads in Kohistan, Pakistan


Dawn
Thu, 02 Sep 2021 16:18 UTC
Men sit beside a coach buried under a landslide on KKH in Khushi area of Upper Kohistan on Wednesday.
© DawnMen sit beside a coach buried under a landslide on KKH in Khushi area of Upper Kohistan on Wednesday.
Heavy rain and flash floods on Wednesday wreaked havoc in Upper Kohistan district with the landslides blocking the Karakoram Highway at various points and floodwaters washing away many link roads, bridges and school buildings.

District education officer Sharafat Khan told reporters here that he had declared three days vacation in schools for the disposal of rubble and floodwaters.

The residents said the Karakoram Highway was blocked in Khushi area early morning by the heavy mudslides from mountains.

They said a landslide hit a passenger coach bound for Mansehra from Khushi area but four people travelling in it remained unhurt and came rushing out of it.

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Cloud Precipitation

Best of the Web: Storm Ida: Flash-flooding across US Northeast kills 45 - New rainfall record of 8cms in 1 hour in NYC - Tornados ravage New Jersey


BBC
Thu, 02 Sep 2021 09:32 UTC

Comment: The new rainfall record comes just TEN DAYS after the previous one was set...


Social media footage shows flooding in Williamsburg area of Brooklyn
© Jaymee SireSocial media footage shows flooding in Williamsburg area of Brooklyn
At least six people have died after flash flooding and tornadoes hit the north-east US, local media report.

Some people were trapped in the flooded basements of their homes, while one body was retrieved from a vehicle that was swept away.

The governors of New York and New Jersey declared a state of emergency, and New York City Mayor Bill de Blasio called it a "historic weather event".

At least 8cm of rain fell in just one hour in New York's Central Park.

The US National Weather Service declared a flood emergency in New York City, Brooklyn and Queens, and issued tornado warnings for parts of Massachusetts and Rhode Island.


Comment: From Floodlist:
While parts of Louisiana are still under water after storm surge and torrential rain from Hurricane Ida, remnants of the storm have moved north, dumping heavy rainfall and causing flooding in parts of Pennsylvania, New York, New Jersey and Maryland.

Destructive floods hit parts of Southwest Virginia in the previous 24 hours.

Record Rainfall

National Weather Service (NWS) Eastern Region reported 48 hour rainfall totals of over 7 inches (177.8 mm) in several areas. Coatsville, Pennsylvania recorded 8.62 inches (218.95 mm) and Stockton in New Jersey 8.04 inches (204.22 mm). Most of this rain fell during a 12 to 24 hour period to late 01 September, NWS Eastern Region said.

New York City saw its rainfall record broken for the second time in a few weeks. The National Weather Service (NWS) recorded 3.15 inches (80 mm) of rain in New York's Central Park in one hour, far surpassing the 1.94 inches (49.27 mm) that fell in one hour during Tropical Storm Henri which was a record high at the time.

Rainfall in north east USA after remnants of Hurricane Ida 30 August to 01 September 2021.
© NWS Eastern RegionRainfall in north east USA after remnants of Hurricane Ida 30 August to 01 September 2021.
UPDATE 02/09/2021:
Several tornadoes touched down in New Jersey, wreaking destruction through communities as the remnants of Hurricane Ida hit the East Coast, also triggering New York City's first ever flash flood emergency amid a massive downpour.


Twisters were spotted in multiple locations across New Jersey on Wednesday evening, with dramatic videos circulating on social media showing massive funnel clouds touching down.


Extensive damage to homes was also seen in other videos making the rounds, as well as flooded streets in Hoboken.
Meanwhile the flooding continues:







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Cloud Precipitation

Best of the Web: Water, water everywhere: Heavy rainfall causes destructive flash floods in Spain - 3 inches of rain recorded in just 30 MINUTES

José Manuel Abad Liñán
EL PAÍS
Thu, 02 Sep 2021 11:42 UTC
Street turns into river as flash floods wreak
Street turns into river as flash floods wreak havoc in Toledo
Heavy rainfall on Wednesday caused flooding in parts of central and eastern Spain. The provinces of Tarragona, Castellón and Toledo were particularly affected by the storms, while in Madrid the rising waters flooded homes and created significant traffic disruption.

On Thursday, parts of mainland Spain as well as the Balearic Islands were on the national weather agency Aemet's yellow alert level for rain and thunderstorms.

Train services were still affected on Thursday morning. At 8.30am, the railway company Renfe notified interruptions on the high-speed Madrid-Toledo line between the stations of La Sagra and Toledo, as well as additional disruptions on the Tarancón-Huete line (between Aranjuez and Cuenca) and the Teruel-Zaragoza line (at Cariñena).

In Catalonia, weather stations recorded rainfall of 77mm in just 30 minutes. The heavy rain triggered flash floods on city streets and damaged ground-floor properties in municipalities of the Montsià and Baix Ebre areas of Tarragona province. In the small coastal town of Alcanar (population 9,300), record rainfall of 167mm caused flash floods that dragged vehicles out to sea.

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Continuous heavy rainfall and floods hit the city of Qingdao, China

Natural Floods
YouTube
Wed, 01 Sep 2021 10:06 UTC
floods
On August 31, Qingdao, Shandong was hit by continuous heavy rain.

Many places in the city were filled with deep water and cars were almost flooded to the windows.

At 11:20 am, the Qingdao Municipal Meteorological Observatory upgraded the rainstorm yellow warning to rainstorm orange warning.

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Devastating floods hit Tlalnepantla, Mexico due to Hurricane Nora

Crazy Weather
YouTube
Wed, 01 Sep 2021 19:48 UTC
floods
Hurricane Nora flooded Mexico! A devastating flood has hit Tlalnepantla!

After moving over the western coast of central Mexico, Tropical Cyclone NORA has weakened to a Tropical Depression and on 30 August at 3.00 UTC, its centre was located about 60 km north-west of Culiacan City (central Sinaloa State) 50 km south-west of Guamuchil State (north Sinaloa), with maximum sustained winds of 55 km/h.

Heavy rain, strong winds and storm surge were reported across Michoacan, Colima and Jalisco States, triggering floods and landslides. According to the Government of Jalisco, one person died and another one is missing near Puerto Vallarta City, after the overflow of the Cuale River. In Cihuatlan City, up to 500 houses were damaged and several people were displaced.

NÓRA is forecast to move northwards over the coast of northern Sinaloa and southern Sonora and is expected to dissipate on late 30 August. Heavy rain and high waves are forecast along the west coast of Mexico, from Nayarit to the southern Sonora Štates on 30-31 August.

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Cloud Precipitation

Hurricane Ida leaves trail of destruction in Louisiana and Mississippi as road collapse raises death toll to 4

Oliver Laughland
The Guardian
Tue, 31 Aug 2021 18:53 UTC
A barge damages a bridge that divides Lafitte, Louisiana and Jean Lafitte, in the aftermath of Hurricane Ida, on Monday.
© David J Phillip/APA barge damages a bridge that divides Lafitte, Louisiana and Jean Lafitte, in the aftermath of Hurricane Ida, on Monday.
Two people died and at least 10 were injured when their vehicles plunged into a deep hole where a highway collapsed after Hurricane Ida blew through Mississippi. Torrential rain may have caused the Monday night collapse.

The deaths in Mississippi took the toll from Ida to four. In Louisiana, one person died in floodwaters and one was killed by a falling tree.

In Slidell, Louisiana, crews were searching for a 71-year-old man whose wife said he was attacked by an alligator in the floodwaters. She pulled him to the steps of the home and paddled away to get help, she said, but when she returned, he was gone.

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Cloud Precipitation

1 person missing, 20 homes destroyed after remnants of Hurricane Ida cause floods in Virginia

Richard Davies
Floodlist
Wed, 01 Sep 2021 18:09 UTC
Flood damages in Hurley, VA, USA August 2021.
© Roanoke Fire-EMSFlood damages in Hurley, VA, USA August 2021.
Governor Ralph Northam declared a state of emergency in Virginia on 31 August after rain brought by the remnants of Hurricane Ida caused devastating floods and mudslides with more severe weather forecast.

Raging flash floods and mudslides swept through parts of Buchanan County, Virginia, on 31 August 2021. More than 20 homes were destroyed in the small community of Hurley situated in a valley along Knox Creek. Around 60 people were evacuated with some taking shelter in a local church. Four people were initially reported unaccounted for but 3 have since been located. Buchanan County Sheriff's Office said as of 31 August that one person was still missing.

"This afternoon, several inches of rainfall led to flooding and landslides that caused extensive damage and restricted access to homes in the Hurley Area," Buchanan County Sheriff's Office said.

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Cloud Precipitation

Floods after heavy rainfall hit the island of Majorca, Spain


Majorca Daily Bulletin
Mon, 30 Aug 2021 19:44 UTC
Magalluf flooding
Magalluf flooding
Heavy rains fell across the island this morning and the north of Mallorca remains on bad weather alert.

Magalluf´s famous Punta Ballena street was hit hard with shops and bars reporting flood damage.

Eyewitnesses said that the rain-water was ankle high in some areas of Magalluf.

There was flooding in other parts of the island also with the fire brigade having to do with hundreds of calls.

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