Colin McCarthy
@US_Stormwatch
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Worldwide Extreme Weather | Storm Chaser | Atmospheric Science @ucdavis ‘26 | Contact: stormwatchcolin @gmail .com
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Last Seen Profiles
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The 2018 Camp Fire was the deadliest wildfire in California’s history that will never be forgotten.
PBS Frontline recently released a compelling short documentary titled "How I Survived California's Deadliest," recounting the harrowing experiences of those impacted by the…
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New York City now has the worst air quality of any city on Earth.
If exposed to the current air quality in NYC for 24 hours, it would be equivalent to smoking about 6 cigarettes.
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Tonga's Hunga Tonga volcano just had one of the most violent volcano eruptions ever captured on satellite.
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The storm surge is so powerful from
#HurricaneIan
that it has brought a shark into the city streets of Fort Myers.
🎥
@BradHabuda
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Orchard Park, home of the
@BuffaloBills
, has seen 66 inches of snow in the last 24 hours!
This is the highest 24-hour snow total ever recorded in New York state.
📸:
@BuffaloBills
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California's Sierra Nevada range 80 days ago versus today.
These mountains likely currently hold the biggest snowpack on the planet.
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Hard to comprehend the scale of the flood disaster in Pakistan, the 5th most populated nation in the world.
Nearly 1400 dead, 1 million houses damaged or destroyed, and 50,000,000 people displaced.
1/3 of the country is underwater.
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Death Valley, the hottest and driest place in the US just saw the 4th 1-in-1,000 year rain event in less than 2 weeks in the US.
3/4 of Death Valley’s annual rainfall fell in 3 hours.
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This week tens of millions of Americans are about to experience one of the coldest days of their life.
Wind chills as cold as -70F in Wyoming and Montana, negative wind chills as far south Austin, Texas, and even single-digit wind chills in the Florida Panhandle.
Deadly cold.
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The wettest place in the world, Mawsynram, India just recorded a mind boggling 39.51 inches (1003.6 mm) of rain in the last 24 hours.
These are what the waterfalls in the area look like.
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Europe is not just experiencing heatwaves on land.
The Mediterranean Sea is experiencing a brutal marine heatwave this July, which will have devastating impacts on marine ecosystems while also enhancing heatwaves on land.
Water temperatures are as high as 6.2°C above normal!
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Persian Gulf International Airport in Iran reported a heat index of 152°F (66.7°C) today at 12:30 pm.
Those are intolerable conditions for human/animal life.
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New video from Front Street shows virtually all of downtown Lahaina has been burned down.
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One of the worst arctic blasts in modern US history visualized over the last 3 days.
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Europe is experiencing its worst heatwave ever recorded.
The combined intensity and scale of this winter heatwave is unlike anything in European history.
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In a shocking turn of events, Hurricane
#Otis
in the Eastern Pacific has unexpectedly, explosively intensified from a tropical storm to a Category 4 hurricane in just 12 hours.
Even worse, the storm is expected to make a catastrophic landfall tonight as a Category 5 hurricane…
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View from space of the violent tornadic supercell that tore through Chicago.
Breathtaking imagery.
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A heat index of 158°F (70°C) was recorded in southern Iran today.
Even the healthiest and youngest individuals could not survive this heat for more than 6 hours.
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Death Valley at 1 am this morning was a mind-boggling 120°F (49°C), before bottoming out at 105°F (40.6°C) at 7 am.
One of the hottest nights in Earth's recorded history.
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One of the most severe marine heatwaves on Earth has developed off the coast of Ireland and the UK, with water temperatures as high as 4-5°C above normal.
NOAA's Marine Heatwave Watch has categorized this event as a Category 4 (extreme) marine heatwave.
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Shocking video of a mountain glacier collapsing in Kyrgyzstan in Central Asia.
Just a week ago Italy saw a deadly glacier collapse killing 11 people.
With a rapidly warming climate expect more sobering scenes like this in the future.
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The Maui fire that tore through Lahaina is one of the worst wildfire disasters in US history.
The town of 12,000 people is virtually destroyed, with at least 53 dead and many more missing. More than 1,700 structures have been destroyed, including entire neighborhoods.
Maui is…
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Jets are literally frozen on the runway in Germany, as Munich has had its largest December snowstorm on record with up to 44 cm (17 in) of snow on the ground.
Incredible scenes.
📸schoko131
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California's water storage is at its healthiest levels in over a decade.
Virtually every major reservoir in the state has average to above-average storage, with a substantial 115% of average snowpack still to melt.
The last two years have been an amazing reprieve from the…
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The newest HRRR model run has 70 inches of snow falling in less than 24 hours just south of Buffalo, NY.
This is shaping up to be potentially one of the most extreme snowstorms in US history.
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California in October 2022 versus March 2023.
From being entrenched in a multi-year extreme drought to having one of the deepest snowpacks on planet Earth.
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Today will be the hottest day ever recorded in the San Francisco Bay Area and Sacramento regions.
Temperatures are forecast to reach as high as 120F in Walnut Creek and Danville in the East Bay!
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Magnificent view from space today of California.
A deep snowpack stretches all the way from the Oregon border to Baja California.
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One of the most intense marine heatwaves on Earth has developed off the West Coast of the US, with water temperatures peaking nearly 5°C (9°F) above normal.
NOAA has categorized this event as a Category 4 (extreme) marine heatwave.
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Wildfire has engulfed businesses on Front Street in downtown Lahaina in West Maui, home to 12,000 people.
The Coast Guard is responding to people who were forced to go into the ocean due to the flames.
Video credit to Alan Dickar, a local resident of Lahaina.
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China is experiencing the worst heatwave ever recorded in global history.
The combined intensity, duration, scale, and impact of this heatwave is unlike anything humans have ever recorded.
Over 260 locations have seen their hottest days ever during this 70+ day heatwave.
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We are watching a disaster unfold in real-time as near Category 5 Cyclone Mocha approaches landfall in Bangladesh/Mynamar, one of the most vulnerable places in the world to storm surge where hundreds of thousands of refugees are currently living in low-lying camps near the coast.
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The Tunnel View shot from
@YosemiteFire
of a quiet Yosemite Valley after a major blizzard.
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The Southern Sierra Nevada now officially has its largest snowpack in recorded history, passing 1982-1983.
The snowpack is a staggering 244% of the peak snowpack average.
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Mount Washington, New Hampshire, has experienced the most extreme weather on planet Earth today.
Wind chills have dipped as low as -109°F, which is cold enough to give someone frostbite in about 1 minute.
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An extraordinary marine heatwave has developed off the east coast of Canada, with hundreds of thousands of square miles of ocean experiencing sea surface temperatures more than 5°C (9°F) above normal and max anomalies approaching 10°C (18°F) above normal.
Thermal stress from…
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UCLA has recorded nearly 12 inches of rain in the last 24 hours, a 1 in 1000-year rainfall rainfall event for Westwood.
A truly unprecedented storm in modern history for the region as an atmospheric river stalls over the region.
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Dhahran, Saudi Arabia, just recorded a heat index of 136°F (57.8°C) at midnight.
A heat index that high is near the limits of human survival.
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It's the clearest day California has had in weeks and the views are amazing.
A deep snowpack, green hills, and beautifully gushing rivers.
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This is one of the clearest satellite views you will ever see of California.
Breathtaking satellite image today of California, one of the most beautiful places on the planet.
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#Pakistan
soared up to a scorching 49C (120.2F) today.
That's one of the hottest temperatures ever recorded on Earth in April.
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China just experienced its highest temperature in recorded history, topping out at an unbelievable 52.2°C (126°F).
This crushes the country's previous all-time high by 1.7°C (3°F).
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California is completely drought-free statewide for the first time in over 3 years.
Incredible.
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Incredible satellite image from space showing all the sediment pouring out into the Pacific from gushing rivers across Northern California.
Also notice the flooded Salinas Valley and muddied waters of the San Francisco Bay and rivers across the Sacramento Valley.
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Category 5 Super Typhoon Bolaven, the strongest storm on Earth, is nearing tropical cyclone perfection.
The storm has a near perfect circular eye surrounded by deep convection.
The storm currently has 180 mph (290 km/h) sustained winds with gusts to 220 mph (354 km/h), but…
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Extremely dangerous wildfire situation is ongoing in West Maui as strong winds up to 60 mph are pushing flames toward populated areas in and around Lahaina.
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Qeshm Dayrestan International Airport in Iran reported a heat index of 178°F (81°C) today.
This would tie the record for highest heat index ever recorded, while the reported dew point of 97°F (36°C) would be a new world record.
These are intolerable conditions for human life.
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Some of the most violent tornado footage I’ve ever seen.
The Andover, Kansas tornado yesterday evening was unbelievable.
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New York City is currently experiencing its single worst day of air quality in recorded history, even worse then yesterday.
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An intense marine heatwave has arrived along the Northern and Central California coast, with water temperatures up to 7°F above normal.
A buoy near the Golden Gate reported a water temperature of 68°F today, 7°F above normal.
If warm waters persist, there could be significant…
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Remarkably clear view from space today of California.
The snowpack is DEEP, rivers are gushing and vegetation is amazingly green.
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24,500,000,000,000 gallons of water have fallen across California over the last 16 days.
That’s 24.5 trillion gallons.
Major drought relief.
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The North Atlantic is in uncharted territory.
The entire ocean basin is a record-smashing 1.5°C above normal, as millions of square miles of ocean experience strong to severe marine heatwaves.
Off the coast of Canada, ocean temperatures are up to 9°C (16°F) above average!…
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Hurricane
#Lee
has continued to outperform even the most aggressive intensity forecasts and may soon become a Category 5 storm.
Two hurricane models are forecasting that Lee's maximum sustained winds will increase to 195-205 mph tomorrow, which would be the highest wind speeds…
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What an unbelievable comeback California's snowpack has made this year, going from just 28% of normal on January 1 to 104% of normal today.
This pretty much guarantees that California will be drought-free again this summer for the second year in a row!
#CAwx
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This is the first time I can ever recall seeing the National Weather Service forecast FOUR major mountain passes in California to see over 100 inches of snow from one storm.
Just humongous snow totals.
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Tropical Storm
#Lee
will likely become the first Category 5 hurricane in the Atlantic in 2023 this weekend as it explosively intensifies.
Some hurricane models suggest the storm could reach historically strong levels (170+ mph) as it moves through a low wind shear environment…
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Worst blizzard conditions I’ve ever experienced in my life at Donner Summit, California.
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The Eastern US and Central Canada are suffering through one of their worst wildfire smoke events in recorded history.
New York City and Toronto have among the top 7 worst air qualities of any major city on Earth.
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California is about to have its largest snowpack in recorded history with another atmospheric river arriving tomorrow expected to bring 2-4 feet more snow.
The snowpack is currently 225% of the peak average.
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One of the worst winter storms of the 21st century is about to hit the Southern California mountains.
Up to 7+ feet of snow could fall above 4,000 feet, with Mount Baldy forecast to be the snowiest ski resort on Earth over the next 5 days, with 100+ inches of snow expected.
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Phoenix will become the first major city in American history to average over 100°F for an entire month.
The city has experienced a virtually continuous heatwave since the beginning of July, with an average high of 114.1°F and an average low of 90.2°F.
While Phoenix is used to…
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Iran soared up to a scorching 52.2°C (126°F) today.
That's the hottest temperature recorded on Earth this year and one of the highest "pre-solstice" temperatures ever recorded.
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Africa just saw its hottest night ever recorded.
Adrar, Algeria's nighttime low was a searing 39.6°C (103.3°F) 🔥
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A severe marine heatwave has emerged off the coast of Florida as water temperatures have soared into the 90s.
Multiple buoys in Everglades National Park are reporting water temperatures as high as 95°F (35°C).
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Santa Clarita, California after hitting near 110F this afternoon was just hit by a hellacious severe thunderstorm
bringing 60 mph wind gusts, hail, heavy rain and frequent lightning.
Incredible swings in weather in SoCal.
🎥
@ChristyRN_
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Unbelievable satellite imagery of one of the most intense March cyclones on record for California with the eye of the storm making landfall near San Francisco.
Amazing.
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Today could be the hottest day in Australia's history, with temperatures up to 125°F (51.7°C) possible in Western Australia and potentially the highest temperature ever recorded in the Southern Hemisphere.
Just brutal extreme heat.
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Dubai is experiencing major flooding as 1.5 year’s worth of rain just fell in a single day.
Nearly 5 inches (127 mm) fell in 24 hours.
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It is absolutely dumping snow in Lake Tahoe, with this snow stake in Tahoe City almost completely buried by snow.
By far the biggest storm of the year in the Sierra Nevada, with 2-8 feet of snow expected throughout the mountain range 🏔️
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The strongest storm to hit California this winter will arrive tomorrow night as a potent atmospheric river and a potential bomb cyclone target the state.
Widespread heavy rain, mountain snow, damaging winds, flooding, and isolated severe thunderstorms will be possible as the…
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Libya has just experienced the deadliest flood of the 21st Century, with 7,000 confirmed dead.
In the city of Derna, home to 90,000 people, up to 20,000 are feared dead.
25% of the city is estimated to be destroyed after two dams collapsed due to extreme rainfall.
Imagery via…
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Today Palermo, Italy, recorded its hottest day in city history since records began in 1790, hitting a stunning 47°C (116.7°F).
Now at 3 am, the city is being threatened by a fast-moving wildfire moving into populated areas, with major damage to houses being reported.
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Reminiscent of a tsunami,
#HurricanIan
is so strong it is literally sucking water out to sea and exposing the sea floor in Tampa Bay.
🎥
@jordansteele
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Catastrophic floods have absolutely devastated Central Greece.
Zagora, Greece received 30 inches of rain in one day. That’s more rain than London typically sees in a year.
🎥
@RomainChvt
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Extreme close-range thundersnow in Buffalo, NY ❄️⚡️
Historic snowstorm is now underway.
Credit 🎥:
@Dave_WX
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Hurricane
#Lee
has explosively intensified into a Category 5 storm and is expected to peak as a monster 180 mph Cat 5.
One of the fastest intensifying Atlantic hurricanes ever observed.
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California officially has its largest snowpack in recorded history, passing 1982-1983.
The statewide snowpack is an astonishing 236% of the peak normal and nearly 300% in the Southern Sierra.
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Mexico City was hit by a freak hailstorm Sunday burying the city in many inches of hail.
An incredible winter-like scene in mid-June.
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The United States just experienced by far its warmest December ever recorded.
All areas highlighted in red (virtually the entire US) experienced temperatures over 3°F above normal.
Parts of Minnesota were 15°F above normal for the entire month.
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The North Atlantic has never been this hot this early, with a massive marine heatwave dominating millions of square miles of ocean.
In recent days the North Atlantic sea surface temperature anomaly has reached nearly 1°C above normal, the highest in recorded history.
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Today is the peak of California's worst September heatwave ever recorded.
The number of locations recording 110°F+ is simply extraordinary.
Many major cities have experienced their hottest day ever recorded, including San Jose and Santa Rosa.
#Heatwave2022
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The National Weather Service is now forecasting Death Valley to soar up to 131°F (55°C), which, if recorded by a weather station, would be the highest temperature ever reliably recorded on Earth.
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Mexico has been suffering through one of its worst heatwaves in its history for the last 7+ days and it shows no sign of letting up over the next week as a relentless heat dome stays parked overhead.
Northern Mexico could soar as high as 50°C (122°F) over the next few days.
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The National Weather Service is forecasting 114 INCHES (almost 10 feet) of snow to fall in just 48 hours near Donner Pass this Thursday to Saturday.
Easily the most extreme blizzard forecast I've ever seen in California.
Up to 160 inches of snow could fall on the highest…
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On the last day of winter in South America, temperatures could peak as high as 45°C (113°F) in Brazil.
Brazil could record its highest temperature in history during this winter heatwave.
"Heat will be so extreme that it will be dangerous and pose a risk to health and life,"…
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Unbelievable satellite shot of the bomb cyclone off the coast of California.
The central pressure of this cyclone will drop to the equivalent of a Category 3 hurricane.
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Amazing satellite imagery of the incredible winter storm roaring through California.
The Sierra Nevada is currently getting pummeled by extreme snowfall rates and the worse part of the storm hasn't event arrived in SoCal where Big Bear has already received 45+ inches of snow.
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#Otis
, one of the fastest-intensifying hurricanes in world history, is minutes away from making landfall on Acapulco, Mexico as a Category 5 storm with sustained winds of 165 mph (266 km/h) and gusts to nearly 200 mph (322 km/h).
Catastrophic damage will occur as this…
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Massive wildfire outbreak has broken out in the Northwest Territories of Canada, burning hundreds of thousands of acres in just a few hours.
Thousands have been evacuated across various small communities, but just like Lahaina serious telecommunications failure is ongoing.
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Ocean temperatures have been at all-time record warm levels for 42 straight days.
This is completed unprecedented in the modern history of Earth.
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Typhoon Koinu just slammed into Orchid Island, Taiwan, where a wind gust of 213 mph (342 km/h) was reported.
If confirmed, this would be one of the top 5 highest wind gusts ever recorded on Earth.
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Some of the heaviest snow I’ve ever seen in my life now in Truckee.
Massive flakes.
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32.6 TRILLION gallons of water fell on California during the last 3 weeks as the state was slammed by a train of atmospheric rivers.
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Owens Lake, once one of the largest lakes in the Eastern Sierra before being drained by the LA Aqueduct in 1913, is making a major comeback due to heavy runoff generated by California's record winter.
The lake has grown to nearly 25 square miles, its largest size in 110 years.
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A catastrophic flood event is unfolding across Fort Lauderdale, Florida, this evening as nearly stationary thunderstorms have dropped 20 INCHES of rain just today.
A rare Flash Flood Emergency has been issued.
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Pineapple Express roaring into California, dropping trillions of gallons of desperately needed water on the state.
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Wildfires in Quebec, Canada are leading to this hazardous air quality.
The Eastern US and Central Canada are suffering through one of their worst wildfire smoke events in recorded history.
New York City and Toronto have among the top 7 worst air qualities of any major city on Earth.
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Abandoned semi truck buried in the snow on I-80 EB in Truckee, with very dangerous whiteout conditions ongoing.
This is why they closed I-80.
#CAwx
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The Pacific Northwest and far Northern California could see their first significant storm of the year early next week as a potential bomb cyclone drives a strong atmospheric river into the region.
Details will change, but widespread rainfall of 1-3" appears possible across…
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