#Hawaii #Kona storm sweeps state with 135-mph winds, 44 inches of rain, summit snow
An emergency declaration was issued as a prolonged kona storm brought dangerous flooding, high winds over 100 mph and 1-2 feet of snow to the summits.
By Emilee Speck, AccuWeather staff writer & Jesse Ferrell, AccuWeather meteorologist
Published Mar 16, 2026
#HawaiiWx #FlashFlooding
#ExtremeWeather #PowerOutages #ExtremeRain
Wtf #nyc it is March
Our sewers can only take 1.75”/hr — or 44.4 mm/hr.
It’s not Thunder flood time yet.
We’ve not even begun the springtime #extremerain
Almost 300 millimetres of rain on #VancouverIsland in three-day drenching
A number of communities in #BritishColumbia’s south coast have received more than 100 millimetres of rain in the atmospheric river event over the last three days, with one station reporting nearly 300 millimetres.
Jan. 13, 2026
VANCOUVER - "A number of communities in British Columbia’s south coast have received more than 100 millimetres of rain in the atmospheric river event over the last three days, with one station reporting nearly 300 millimetres.
#EnvironmentCanada says the #KennedyLake Forestry Station on Vancouver Island received a whopping 286 millimetres from Saturday to Monday.
"On the mainland, #PortMellon reported 204 millimetres.
"The weather agency says at least 20 weather stations in the region reported rain of more than 100 millimetres, including 168 millimetres in #Ucluelet.
"Other parts of Metro #Vancouver and the Lower Mainland were also drenched, with #Squamish reporting 132 millimetres.
"The #HeavyRain triggered several evacuation orders and alerts in areas including Chemainus Bridge and the Nanaimo Regional District on Vancouver Island, with one evacuation order for a single property near #ParksvilleBC.
"Much of B.C.‘s south coast and Vancouver Island remain under a flood watch, with a flood warning sill in effect for the Englishman River near Parksville.
"This report by The Canadian Press was first published Jan. 13, 2026."
#ExtremeWeather #ExtremeWx #ExtremeRain #ClimateChange #CanadianWx
Deadly #Floods Due to #Levee Failures Reflect Need for #Infrastructure Investment
Levees were never designed to handle extreme weather that is now more common due to climate change.
By Farshid Vahedifard, December 29, 2025
"In recent weeks, powerful #AtmosphericRiver storms have swept across #Washington, #Oregon and #California, unloading enormous amounts of rain. As rivers surged, they overtopped or breached multiple levees – those long, often unnoticed barriers holding #floodwaters back from homes and towns.
"Most of the time, levees don’t demand attention. They quietly do their job, year after year. But when storms intensify, levees suddenly matter in a very personal way. They can determine whether a neighborhood stays dry or ends up underwater.
"The damage in the West reflects a nationwide problem that has been building for decades. Across the U.S., levees are getting older while weather is getting more extreme. Many of these structures were never designed for the enormous responsibility they now carry.
"As a civil engineer at Tufts University, I study water infrastructure, including the vulnerability of levees and strategies for making them more resilient. My research also shows that when levees fail, the consequences don’t fall evenly on the population."
#ClimateChange #AtmosphericRivers #ExtremeRain #Flooding #ExtremeFloods #WhenTheLeveeBreaks
2nd #AtmosphericRiver to flood #California with firehose of rain into Christmas
#HeavyRain and #flooding problems experienced in the #Northwest in recent weeks from atmospheric rivers will shift farther south into California through Christmas Day with major travel disruptions and safety concerns.
By Alex Sosnowski, AccuWeather senior meteorologist
Published Dec 21, 2025
"Two main atmospheric rivers will force copious amounts of #Pacific moisture into #California this week. Heavy rain with incidents of flooding, washouts and mudslides will expand and shift from north to south over the state, leading to travel disruptions at the very least and posing some risk to lives and property in extreme cases. The #SierraNevada will receive many feet of snow as freezing levels lower through the week and the region is affected by both atmospheric rivers.
"The storms are hitting at a busy time of the year, with many traveling short and long distances, running errands and planning outdoor activities.
"The first atmospheric river was already in progress and will continue to focus on Northern to Central California into Wednesday. A second atmospheric river is forecast to develop and concentrate on Central and Southern California from Tuesday night through Christmas Day. But even beyond Christmas, lingering moisture will lead to additional rounds of showers and mountain snow, according to AccuWeather.
"Through Wednesday, much of the #Sacramento Valley and the #SanFrancisco Bay region will receive 2-4 inches of rain with locally higher amounts. The anticipated rainfall for San Francisco in the stormy pattern into next weekend will bring from one to two times the historical average for December.
"On the west- and southwest-facing mountainsides of the Coast Ranges and the Sierra Nevada, 4-12 inches of rain will pour down with an AccuWeather Local StormMax™ of 20 inches.
"At times, multiple inches of rain can fall in a matter of hours, overwhelming storm drains and causing small streams and short rivers to quickly overflow their banks. As the ground becomes saturated, the risk of debris flows, road washouts and hillside collapses will increase substantially.
"From Tuesday night to early Friday, the second atmospheric river will spray rain of varying intensity throughout Central and Southern California.
"A general 4-6 inches of rain is forecast to fall on the Los Angeles basin. Downtown, L.A. had seven times its historical average monthly rainfall for November with 5.53 inches. While no rain has fallen so far in L.A. this month, from two to three times December's average rainfall of 2.48 inches may occur with the stormy pattern from Tuesday to Saturday.
"On the southwest-facing hillsides of the Transverse Ranges, 6-12 inches will pour down with an AccuWeather Local StormMax™ of 16 inches. Even in many desert areas of Southeastern California, between 0.25 of an inch to 1 inch of rain is expected to fall.
"Just as with the first atmospheric river up north, rain will be drenching, leading to rapid urban flooding and flooding of small streams and short-run rivers, along with mudslides, washouts and the potential for hillside slides in Southern California. "
#ClimateChange #AtmosphericRivers #ExtremeWeather #ExtremeRain #Landslides #Flooding #ExtremeWx
Major storm to unload inches of rain, set off dangerous flash flooding in California
A rare setup for November will unleash two waves of heavy rain across California, with the second storm threatening to bring major flooding, mudslides, and travel chaos to Los Angeles and surrounding areas.
By Alex Sosnowski, AccuWeather senior meteorologist
Published Nov 12, 2025
#ExtremeWeather #ExtremeRain #ClimateChange #Flooding #CaliforniaWx #HeavyRain
Deadly storm floods NYC, brings trees down in Philadelphia
A deadly storm flooded New York City, brought barges ashore in New Jersey, and sent a tree crashing onto a car in Philadelphia.
By Jesse Ferrell, AccuWeather meteorologist and senior weather editor
Published Oct 31, 2025 11:58 AM EDT | Updated Oct 31, 2025 11:58 AM EDT
" A powerful storm caused heavy rain in the Northeast on Thursday evening, flooding roads and subways in New York City, and sending two barges ashore in New Jersey. Two people perished in flooded New York City basements, according to ABC7.
In Philadelphia earlier in the day, a tree fell onto a moving car during heavy rain, killing the driver. High winds caused power outages, with approximately 15,000 customers in both New York and New Jersey without power during the storm's peak.
A cyclist rides through floodwaters during a rainstorm in New York, Thursday, Oct. 30, 2025. (AP Photo/David Martin)
A cyclist rides through floodwaters during a rainstorm in New York, Thursday, Oct. 30, 2025. (AP Photo/David Martin)
"The storm, which drew in additional moisture from Hurricane Melissa, featured rainfall rates of 1 inch per hour," AccuWeather Lead Hurricane Expert Alex DaSilva said. The high rain rates, along with clogged storm drains from fall leaves, led to the New York City flooding.
The heavy rain broke daily rainfall records across the region, including Central Park, LaGuardia Airport, Newark, Baltimore, and Williamsport, Pennsylvania."
#HurricaneMelissa #ClimateChange #ClimateDiary #ExtremeRain #Recordbreaking #ClimateDiaryNortheast
Literally, when it does rain, it pours!
Warming atmosphere fueling heavier U.S. rainfall and rising flood risk, AccuWeather analysis shows
A new AccuWeather study of more than 60 years of rainfall records shows U.S. precipitation totals are flat, but heavy downpours and hourly extremes are increasing, raising the risk of flooding, damage, and economic losses.
By Monica Danielle, Sep 19, 2025
"It’s not raining more across the United States, but when it rains, it’s falling harder, faster and in more extreme bursts. That’s the finding of a new AccuWeather analysis of more than 60 years of weather records, which reveals a striking shift: National rainfall totals remain statistically flat, yet the number of heavy downpours and hours with extreme rainfall have increased sharply.
"These changes are fueling greater flood risk, straining infrastructure and threatening communities nationwide. "
#ClimateChange #WeatherWeirding #Drought #ExtremeWeather #ExtremeRain #USWx #ExtremeWx
9/
They also specifically list regions near mountain ranges as safe carbon storage sites.
With permafrost and glacier melt & heavy downpours followed by huge temperature drops prising open rock fissures?
Uhm, I do realize geologists were among the authors 😁 I'm not saying they're wrong, how could I, I'm expert in nothing!
But I am really worried.
And perhaps, researchers can pick up on these worries and address them in future communications🖖🏽
#ClimateChange #DACS #CDR #CCS #ExtremeRain #Blatten
Very good documentary about extreme weather in a weirding climate
https://www.youtube.com/watch?v=X6VCTfzl1DU
Rockström, Knutti, Swain and Erik Fischer explain weather phenomena like Lytton's 50°C in June 2021 and Valencia's 800mm rain October last year.
These explanations are very welcome as understanding them reduces my fear.
Then they stress the necessary adaptation and illustrate with a few examples how the human individual and collective mind so far has largely shrugged at communicated risks "It won't happen here."
This reminds me of Brunner et al 2025 who compared commonly low-ish resolution climate models like CMIP6 with high resolution climate models and their respective number of extreme events by 2049.
Municipalities do not yet know what's physically possible or physically plausible at their specific location.
I can imagine cases where making adaptation plans today without such Brunner-like high-resolution projections, the information base is just insufficient and the money spent on new bridges, new asphalt, new train tracks, or on flood mitigation later turns out to be mis-spent.
Okay, I mean, then it'll just get done again, because money is merely an idea, not a physical law. True, true...🤔
Yeah, right. It wouldn't matter much.
Making adaptation plans now also has lots advantages aside from planning actual hardware updates or swaps.
Once the clerks' brains shift gear toward adaptation, they'll get other ideas around climate weirding as well which will be beneficial for the community too.
#ExtremeWeather #ExtremeHeat #ExtremeRain #Climate #ClimateAdaptation #meteorology
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