#flash-flood — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #flash-flood, aggregated by home.social.
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Nepal must rethink its hydropower future
Putting all its eggs in one basket is not a good idea in an age of climate breakdown
#Nepal could generate up to 3,700MW of power mainly from run-of-river schemes that depend on the flow of water on rivers, and not large reservoirs. These plants are built right on fast-flowing #Himalaya'n rivers, and divert water through tunnels to power houses.
“Nothing is left. The structures have all been swept away, many projects that were started during my tenure at the NEA have also been destroyed,” says Kulman Ghising, who headed the Nepal Electricity Authority #NEA till last year, and who fought the election in March from his Ujyalo Nepal Party.
https://nepalitimes.com/nepal-must-rethink-its-hydropower-future
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💁🏻♀️ TIL: 🌧️🏜️ Heavy #monsoon rainfall caused deadly flash flooding in the #GrandCanyon on August 29, 2026.
#Drought and the 2025 Dragon Bravo #Fire had left parts of the #landscape more vulnerable to debris flows. #TropicalStorm #Karina supplied additional moisture, producing rapid water-level rises, damage to gauges, evacuations, fatalities, and extensive damage to the park’s #water pipeline.
👉 https://eos.org/research-and-developments/why-did-the-grand-canyon-flood
#weather #floods #flashflood #geology #hydrology #wildfire #rain #climate #climatechange #nature #earthscience #science #nationalparks
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LIVE: Search and rescue efforts in Nepal’s Trishuli
Search and rescue efforts in Trishuli, Nuwakot, one of the worst-hit areas in Nepal's devastating floods. At least 1,200 people have been confirmed dead and thousands remain missing. #Trishuli #Nuwakot #Nepal #searchandrescue #flashflood #flood #rescue #live #Reuters #news Keep up with the latest news from around the world:
https://fllics.com/en/video/live-search-and-rescue-efforts-in-nepals-trishuli/
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What is lost and damaged in Nepal
The government has taken a firm stance on global climate justice and the same reckoning is owed at home
Rebuilding with borrowed money only deepens fiscal deficits and sovereign risk, while the same high-emitting countries and corporations profit as creditors from those loans.
#ClimateJustice is thus a financial and moral obligation that requires specificity. And Nepal has just made its own position concrete.
On 1 September, Nepal’s government formally asked the board of the Fund for Responding to Loss and Damage — the mechanism established at #COP27 and operationalised at #COP28 — for urgent, direct support following the #BhoteKosiFlood, explicitly citing the country's negligible contribution to global #emissions against the disproportionate #climate impacts it continues to absorb as a result of unchecked, unsustainable #capitalism.
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Grand Canyon National Park: Two Deceased Hikers Recovered and Identified Following Flash Flood
"The National Park Service has recovered the bodies of two hikers who were caught in a destructive flash flood Aug. 29 in Bright Angel Canyon. The hikers have been identified as John Giusti, 46, and Brent Rosenkranz, 42, both of Granbury, Texas.
One member of the hiking group remains missing. Search and rescue operations are ongoing, with teams continuing efforts to locate the missing hiker and account for anyone else who may have been in the affected area at the time of the flood.
Grand Canyon National Park is coordinating the response with the NPS Investigative Services Branch, Coconino County Search and Rescue, and U.S. Border Patrol Search, Trauma, and Rescue.
Anyone with information about individuals who may have been hiking or backpacking in Bright Angel Canyon or the surrounding area on Aug. 29 is asked to contact the NPS Investigative Services Branch Tip Line at 888-653-0009. "
#GrandCanyonNationalPark #NPS #Disaster #FlashFlood #climateemergency
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Deadly flooding impacts Grand Canyon overnight stays | FOX 10 Phoenix #fox10phoenix #grandcanyon #flooding #flashflood #arizona #az #news #monsoon #severeweather #azwx #searchandrescue #YouTube https://www.youtube.com/watch?v=GmIQzVtWy2A
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Headlines on a Climate Deadline: International media falters in linking Nepal flood to climate crisis
In coverage of the catastrophic Bhote Kosi flood, many mainstream western news outlets have failed to confidently state the significance of the #ClimateCrisis, or to cite the human-made structures that produce it.
Two days after catastrophic flooding began, designers and former Harvard classmates Bhavya Jain and Fatima Hamdani posted a carousel of headlines plucked from mainstream western news outlets on their Instagram.
By taking a red pen to each headline in the style of Alexandra Bell’s Counternarratives series, Hamdani and Jain called attention to journalists’ noncommittal tone, which served to obfuscate the connection between the Bhote Kosi flood and #ClimateChange.
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Nepal's devastating floods won't be the last as the region's mountains heat up
On the morning of Aug. 26, a section of mountain near #Langtang #Lirung peak in Nepal suddenly collapsed.
A huge mass of rock, ice and debris plunged roughly 1,200 meters (3,900 feet) into the valley below, producing a highly destructive flood on the Lhende Khola river. The flow traveled almost 100 kilometers (60 miles) downstream, washing away villages and bridges. Nearly 1,000 people died, and thousands more are still missing across the Nepal–China border.
This isn't the first rock-ice avalanche in the Himalayas, but it is by far the most devastating. Unfortunately, it is unlikely to be the last. Rising temperatures due to climate change mean the permanently frozen slopes of mountains in the region may begin to melt and destabilize.
The steep mountain face was topped by a glacier—a heavy river of ice. It's likely that the steep slope of bedrock collapsed first, followed by the overhang of ice.
As this enormous mass fell into the valley, it created a tremendous amount of energy. This would likely have melted the ice in the avalanche and any ice in the valley, adding large volumes of faster-moving water to the flow and intensifying the debris flood.
The rugged Himalayan terrain made the disaster even worse by providing a steep, confined pathway that accelerated the mass of water, rock, dirt and ice as it flowed into the river.
A landslide followed the first collapse, and a small lake has formed within the newly created depression in the valley. The site will remain unstable for some time....
https://phys.org/news/2026-09-nepal-devastating-wont-region-mountains.html
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Hundreds feared stuck in hydropower tunnels as flood deaths surpass 950 in Nepal and China
Rescuers are racing to free hundreds of workers believed to be trapped in tunnels at hydropower sites that were buried in mud by catastrophic flooding on the Nepal-China border.
#BreakingNews #Environment #Nature #Science #flashflood #Nepal -
Flash flooding in Zion National Park (!). There seems to be a rash of flash flooding in national parks this week.
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Hmm, what is downstream on the Virgin River? #UTwx #flashflood
112
NWUS55 KSLC 312012
LSRSLCPreliminary Local Storm Report
National Weather Service Salt Lake City UT
212 PM MDT Mon Aug 31 2026..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..0200 PM Flash Flood 1 S Springdale 37.16N 113.00W
08/31/2026 Washington UT Official NWS ObsLarge flood wave on the East Fork of the
Virgin River Gauge, 1000 cfs and climbing.&&
$$
CRK
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Death Toll Rises in #GrandCanyon #Flood as Search Efforts Continue
Officials announced a second death & said more than a dozen people remain unaccounted for following heavy #rain.
#ClimateChange #ExtremeWeather #FlashFlood #monsoon #weather
https://www.nytimes.com/2026/08/31/us/grand-canyon-floods.html?unlocked_article_code=1.9lA.cdnh.LjaX38V7Ovo8&smid=nytcore-ios-share -
ABC: At least 2 dead in Grand Canyon flash flooding as urgent search for missing continues
https://abc7.com/post/grand-canyon-braces-more-storms-deadly-flash-flood-15-people-missing/19769062/
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Comparison of satellite images of the rockslide in Nepal
The image taken after the rockslide (source: Nepal Times) has been georeferenced and superimposed onto an earlier satellite image (source: Bing Virtual Earth, date unknown).
The animation gives an idea of the sheer scale of the rockslide.
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From #Arizona to #Utah & western #Colorado, #flood watches remained in effect as the threat for heavy #rain will continue Monday.
“ #FlashFlooding will be possible in creeks, normally dry washes, swimming holes, & over recently burned areas. Raging killer currents will be possible in side canyons & narrow slot canyons. Low-water crossings may be flooded,” wrote the National Weather Service in Flagstaff, Arizona.#ClimateChange #ExtremeWeather #GrandCanyon #FlashFlood #monsoon #weather
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Near the epicenter of this weekend’s #FlashFloods in the #GrandCanyon, 1.24 inches of rain fell in a 3-hour period Saturday, including 0.84 inches in 1 hour.
High intensity rainfall on steep, rocky & #drought affected terrain meant that the water wasn’t absorbed into the ground & mostly ran off into the canyons & creeks below.#ClimateChange #ExtremeWeather #FlashFlood #monsoon #weather
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A record-breaking #ElNiño & a #marine #heatwave in the #Pacific Ocean have combined to load the atmosphere with moisture, helping fuel the deadly #flooding.
On the backdrop of #ClimateChange, these factors have driven atmospheric moisture levels 5 to 15% higher than average. That has loaded the dice for downpours this summer, such as those that hit the #GrandCanyon Saturday.#ClimateChange #ExtremeWeather #FlashFlood #monsoon #weather
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These forces drove the deadly #GrandCanyon #FlashFlood
The #Arizona #monsoon is only one part of a bigger #weather story.This weekend’s #FlashFlooding, which has killed at least one person in the Grand Canyon, wasn’t an isolated weather event.
The torrential rain was part of Arizona’s monsoon season, which runs from June 15 through Sept 30.
But the monsoon alone doesn’t tell the whole story.#ClimateChange #ExtremeWeather
https://www.washingtonpost.com/weather/2026/08/31/these-forces-drove-deadly-grand-canyon-flash-flooding/ -
Grand Canyon Flash Flood Leaves One Dead & 15 Missing: Viral Video Shows Devastating Deluge [WATCH]
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CW: Flash flood, grand canyon; one dead
Damn. I walked that area from Phantom Ranch/Bright Angel Stream to both bridges, many years ago. The BA camp ground must have flooded. With the foot bridges across the stream gone, there's little easy-to-climb high ground between the creek and the cliffs; it must have been terrifying to the campers.
https://www.abc.net.au/news/2026-08-31/grand-canyon-flash-flood-15-people-missing/107097306
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One Dead and 15 May Be Missing at the #GrandCanyon After #FlashFlood
At least 62 people were evacuated on Saturday after #flooding destroyed footbridges & damaged a campground & cabins near Bright Angel Creek in #Arizona, the #NationalPark Service said.
#ExtremeWeather #ClimateChange
https://www.nytimes.com/2026/08/30/us/grand-canyon-flash-flood-people-missing.html?unlocked_article_code=1.9lA.4muZ.Df02M7SqVXTR&smid=nytcore-ios-share -
Yikes, that is a LOT of campsites that were within the flash flood footprint. Apparently wildfire burn scar flooding, which explains why it was so intense.
Ribbon Falls, Bright Angel Campground, North Rim Campground, Cottonwood Campground, Clear Creek Camp Site, Upper Cremation Camp Site, Lower Cremation Camp Site, Roy's Beach Camp Site, Boat Beach Camp Site, Crystal Camp Site, Ego Beach Camp Site, Above Tuna Creek Camp Site, Above Tuna Rapids Camp Site, Manzanita Rest Area and Roaring Springs.
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Grand Canyon National Park: Public Assistance Requested to Account for Individuals Following Grand Canyon Flash Flood
"...The National Park Service is asking the public to provide information for more than 20 individuals who may be missing or unaccounted for following a significant flash-flood event in Bright Angel Canyon and the Phantom Ranch area on August 29.
Grand Canyon National Park staff, in coordination with the Arizona Department of Public Safety, are continuing evacuation and response efforts and working to account for individuals who may have been in the affected area.
The National Park Service is asking anyone who knows of hikers or backpackers who were in the inner canyon along the Bright Angel Creek corridor on August 29, as well as anyone who had a campground reservation in the affected corridor, to provide information to the National Park Service Investigative Services Branch (ISB). This includes individuals who may have been traveling along the North Kaibab Trail from the North Kaibab Trailhead to Phantom Ranch, staying at Bright Angel Campground, or traveling or staying in the area known as “the Box” north of Phantom Ranch. ..."
#disaster #NPS #GrandCanyonNationalPark #flashflood #monsoon
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LIVE: Nepal after deadly flash flood
The aftermath and rescue efforts after a huge wall of mud and rock collapsed into a river on the Himalayan border between Nepal and China's Tibet, triggering severe flooding on the Nepali side. #nepal #flashflood #rescue #searchandrescue #live #Reuters #news Keep up with the latest news from around the world:
https://fllics.com/en/video/live-nepal-after-deadly-flash-flood/
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BBC: Hikers feared missing after 'terrifying' flash flooding hits Grand Canyon
"...As soon as the rain hit, Baggs and her friends headed toward higher ground, where they sat at a picnic table, before rangers yelled to them to run again to a different ledge, where they waited with others for hours before they were evacuated at around 21:30 local time.
Baggs said she and her two friends had been looking forward to a steak dinner at Phantom Ranch - but were now just grateful to be alive thanks to a swift response from park rangers. ..."
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*Significant* flash flood event in the Grand Canyon
NPS: A significant flash-flood event occurred in Bright Angel Canyon and the Phantom Ranch area on August 29, beginning at approximately 2:30 p.m.
As of the morning of August 30, 62 individuals have been evacuated from Phantom Ranch and the lower North Kaibab Trail. Additional individuals are scheduled to be evacuated this morning from Cottonwood Campground and Phantom Ranch in coordination with the National Park Service and Arizona Department of Public Safety. Evacuees are being transported to the Maswik Lodge Cafeteria on the South Rim, where the American Red Cross is coordinating assistance. No injuries have been reported as of the latest available information.
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"This is by far the most horrific flood I have ever seen"
Himalayan glacier expert Alton C Byers on what happened in Nepal and what should happen now
We're getting more and more insights. What we can say for sure is that this is different from your classic glacial lake outburst flood. What we had was a massive breakage of ice and rock from high on Langtang Lirung on the Nepal side of the border with Tibet. It plummeted down and, in effect, was the catalyst for a series of cascading events. I think that the breakage was related to changes in #permafrost, which has become vulnerable to warming trends. Permafrost was the #cryosphere glue that held these mountains together for millennia, and we're seeing more massive breakages of snow and ice and rock as well.
https://nepalitimes.com/this-is-by-far-the-most-horrific-flood-i-have-ever-seen
