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Jeff Berardelli

@WeatherProf60,268 subscribers

WFLA-TV (Tampa Bay) Chief Meteorologist and Climate Specialist. BS Atmospheric Sciences Cornell U. MA Climate Columbia U. Past CBS News NY and Miami, Tampa, WPB

Shorts

Heads up‼️ Hottest Ever?! It’s genuinely possible. No exaggeration to say that the severity of the #heatwave that the Eastern US is about to experience will be cruel and grueling for days! 100s of record highs, some neck and neck with all-time records, in the East Coast cities! And peak heat index numbers near 115. Lasting right into the weekend.

Heads up‼️ Hottest Ever?! It’s genuinely possible. No exaggeration to say that the severity of the #heatwave that the Eastern US is about to experience will be cruel and grueling for days! 100s of record highs, some neck and neck with all-time records, in the East Coast cities! And peak heat index numbers near 115. Lasting right into the weekend.

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100 MPH Hurricane Killing Peak Wind Shear forecast in the #Caribbean . Unreal for summer, but this is no ordinary summer. The strongest El Niño on record is flexing its muscle 💪 and overpowering the Atlantic. Anything that tries to develop would be torn to pieces. If this continues, it would be one of the quietest Atlantic hurricane seasons on record. #hurricane #elnino

100 MPH Hurricane Killing Peak Wind Shear forecast in the #Caribbean . Unreal for summer, but this is no ordinary summer. The strongest El Niño on record is flexing its muscle 💪 and overpowering the Atlantic. Anything that tries to develop would be torn to pieces. If this continues, it would be one of the quietest Atlantic hurricane seasons on record. #hurricane #elnino

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Heat Domes Dominate the Planet! Sound up! Typically El Niño waits until fall to impact the jet stream, but this one is supercharged. That means the heat in the Tropical Pacific is already helping to reorganize atmospheric waves, leading to persistent and intense heat domes in North America with downstream impacts in Europe. Those heat waves are of course significantly boosted by the long term warming trend. #elnino #heatwave #heatdome #extremeweather

Heat Domes Dominate the Planet! Sound up! Typically El Niño waits until fall to impact the jet stream, but this one is supercharged. That means the heat in the Tropical Pacific is already helping to reorganize atmospheric waves, leading to persistent and intense heat domes in North America with downstream impacts in Europe. Those heat waves are of course significantly boosted by the long term warming trend. #elnino #heatwave #heatdome #extremeweather

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Europe is melting! The size, intensity, and longevity of this #heatwave is enormous. Peak temperatures will reach 45°C / 100-115°F this week in #France . You are looking at temperature anomalies in the cloud layer over the next 2 weeks, which peak at +20°C. #Europe is Earth’s fastest warming continent, and European heat extremes are increasing faster than models project they should, likely due to changes in steering flow. In a rapid attribution study by Climameter it is estimated that #climatechange has made this June heatwave up to 4°C hotter (7°F) than it would have otherwise been without warming.

Europe is melting! The size, intensity, and longevity of this #heatwave is enormous. Peak temperatures will reach 45°C / 100-115°F this week in #France . You are looking at temperature anomalies in the cloud layer over the next 2 weeks, which peak at +20°C. #Europe is Earth’s fastest warming continent, and European heat extremes are increasing faster than models project they should, likely due to changes in steering flow. In a rapid attribution study by Climameter it is estimated that #climatechange has made this June heatwave up to 4°C hotter (7°F) than it would have otherwise been without warming.

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Meanwhile in the Southern Hemisphere

Meanwhile in the Southern Hemisphere

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‼️ In house Hi Res Model escalates this weekend. GRAF Indicates #Bertha by early week as the storm drifts west away from Florida into the #Gulf. This model is very good, but I emphasize this is an incredibly tough forecast, and it may be wrong. I find it tends to spin things up too fast, and we are not yet in the GRAF wheelhouse of inside 48 hours. I only post this because it’s 3 days from now and as we go into the weekend I don’t want folks sleeping on this, and I want to be transparent with ya’ll. It’s nothing to be concerned about, just something to be aware off. Right now NHC development chance is at 30%. Otherwise on/ off downpours through the weekend.

‼️ In house Hi Res Model escalates this weekend. GRAF Indicates #Bertha by early week as the storm drifts west away from Florida into the #Gulf. This model is very good, but I emphasize this is an incredibly tough forecast, and it may be wrong. I find it tends to spin things up too fast, and we are not yet in the GRAF wheelhouse of inside 48 hours. I only post this because it’s 3 days from now and as we go into the weekend I don’t want folks sleeping on this, and I want to be transparent with ya’ll. It’s nothing to be concerned about, just something to be aware off. Right now NHC development chance is at 30%. Otherwise on/ off downpours through the weekend.

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It’s unreal to see this El Niño continue to astonish. Take a look at the subsurface heat build up in the last few frames of this. The anomalies are backing up, and heating up, like a traffic jam, in the Central Pacific. There’s a ton more fuel left in this tank! And it seems evident it will end up living up to the hype and seasonal model forecasts. Thanks Alex Boreham for the great visual.

It’s unreal to see this El Niño continue to astonish. Take a look at the subsurface heat build up in the last few frames of this. The anomalies are backing up, and heating up, like a traffic jam, in the Central Pacific. There’s a ton more fuel left in this tank! And it seems evident it will end up living up to the hype and seasonal model forecasts. Thanks Alex Boreham for the great visual.

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Just watch how gargantuan this storm is. I still can’t get over it. In terms of girth, it’s def in the top 5 that I recall. This will impact 2/3rds of the nation and half of the country in a big way. Longevity too, with us Friday-Monday! And the brutal cold that follows. 🥶 Disruption deep into next week! #Snow #ice #storm

Just watch how gargantuan this storm is. I still can’t get over it. In terms of girth, it’s def in the top 5 that I recall. This will impact 2/3rds of the nation and half of the country in a big way. Longevity too, with us Friday-Monday! And the brutal cold that follows. 🥶 Disruption deep into next week! #Snow #ice #storm

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Caribbean Storm Shredding Shear! You’ve probably heard that there’s a chance of development in the Tropical Atlantic. There’s a decent signal for it in 1-2 weeks. But if it dares enter the #Caribbean, it will meet its maker with 60-80+ mph shear!

Caribbean Storm Shredding Shear! You’ve probably heard that there’s a chance of development in the Tropical Atlantic. There’s a decent signal for it in 1-2 weeks. But if it dares enter the #Caribbean, it will meet its maker with 60-80+ mph shear!

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No, your eyes are not deceiving you! Next week's cold blast is going to be “near” historic in #Florida for early November. The models are very aggressive and if they are right we may tie or break records set ~100 years ago. These are wind chills for Tuesday morning BUT it is not out of the question that North FL will see actual low temps near freezing next Tuesday and Wednesday mornings. Fire up the fireplaces! You don't have one? You have a week to get it :)

No, your eyes are not deceiving you! Next week's cold blast is going to be “near” historic in #Florida for early November. The models are very aggressive and if they are right we may tie or break records set ~100 years ago. These are wind chills for Tuesday morning BUT it is not out of the question that North FL will see actual low temps near freezing next Tuesday and Wednesday mornings. Fire up the fireplaces! You don't have one? You have a week to get it :)

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El Niño is born! Destined to be the biggest in 150 years +?? NOAA declares: El Niño Advisory This morning conditions in the Eastern Pacific met the criteria for El Niño. This means Sea Surface Temps reached a certain level above normal, and the ocean and atmosphere “coupled” meaning they are now working in tandem to produce impacts. This event is widely advertised by models to be potentially the strongest on record. El Niño takes very hot water stored in the deep tropical west Pacific, pushing it east and up to the surface, lofting that heat into the atmosphere, which supercharges weather events and throws the climate off-kilter. This typical means more intense heatwaves & floods, but also it restrains the Atlantic hurricane season. So its impacts are both good and bad. One thing seems virtually certain: the heat released into the atmosphere will make for some unprecedented events through 2027, and on top of longterm warming, the hottest global temperatures in many tens of 1000s of years. #ElNino #florida #storm #heatwave #flood #drought

El Niño is born! Destined to be the biggest in 150 years +?? NOAA declares: El Niño Advisory This morning conditions in the Eastern Pacific met the criteria for El Niño. This means Sea Surface Temps reached a certain level above normal, and the ocean and atmosphere “coupled” meaning they are now working in tandem to produce impacts. This event is widely advertised by models to be potentially the strongest on record. El Niño takes very hot water stored in the deep tropical west Pacific, pushing it east and up to the surface, lofting that heat into the atmosphere, which supercharges weather events and throws the climate off-kilter. This typical means more intense heatwaves & floods, but also it restrains the Atlantic hurricane season. So its impacts are both good and bad. One thing seems virtually certain: the heat released into the atmosphere will make for some unprecedented events through 2027, and on top of longterm warming, the hottest global temperatures in many tens of 1000s of years. #ElNino #florida #storm #heatwave #flood #drought

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Watch as #smoke 💨 from Canadian #fire 🔥 moves away, then backtracks towards Florida. This is due to the famous #Bermuda high and something we call atmospheric wave breaking where pieces of the jet stream break off and then meander. In this case the smoke gets caught up in this process and attempts to get back to the SE US by late week. By then it will be thin, diffuse and barely noticeable but it’s a good lesson that the atmosphere is a fluid and “It’s all connected!”

Watch as #smoke 💨 from Canadian #fire 🔥 moves away, then backtracks towards Florida. This is due to the famous #Bermuda high and something we call atmospheric wave breaking where pieces of the jet stream break off and then meander. In this case the smoke gets caught up in this process and attempts to get back to the SE US by late week. By then it will be thin, diffuse and barely noticeable but it’s a good lesson that the atmosphere is a fluid and “It’s all connected!”

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This animation shows the extent to which climate change is impacting the #heatwave. The 5X is about the biggest expanse I’ve seen in this analysis. From Climate Central

This animation shows the extent to which climate change is impacting the #heatwave. The 5X is about the biggest expanse I’ve seen in this analysis. From Climate Central

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When I look at this jet stream the word insane comes to mind. It's even more astonishing when you consider it's mid June! This configuration, likely enhanced by climate heating, is fueling a record heat dome so extreme that even experts are astonished!

When I look at this jet stream the word insane comes to mind. It's even more astonishing when you consider it's mid June! This configuration, likely enhanced by climate heating, is fueling a record heat dome so extreme that even experts are astonished!

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What if #Milton went 25 mi north? Disaster for #tampabay! Milton’s eye went south of the bay and winds on north side forced 2-5 ft of water out. Reverse surge. But landfall 25 miles north would have changed fate as 15 ft of surge would have funneled into the narrowing bay. WFLA NEWS

What if #Milton went 25 mi north? Disaster for #tampabay! Milton’s eye went south of the bay and winds on north side forced 2-5 ft of water out. Reverse surge. But landfall 25 miles north would have changed fate as 15 ft of surge would have funneled into the narrowing bay. WFLA NEWS

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#Hurricaneerin is hungry. It will feast on hot water up to 88 degrees. After using this heat to power its engine, it will dissipate said heat. Leaving a cool ocean wake in its path, ~10 degrees lower than it found it. The water cools not just due to heat absorption, but also overturning /upwelling, wind and rain.

#Hurricaneerin is hungry. It will feast on hot water up to 88 degrees. After using this heat to power its engine, it will dissipate said heat. Leaving a cool ocean wake in its path, ~10 degrees lower than it found it. The water cools not just due to heat absorption, but also overturning /upwelling, wind and rain.

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This may be hard to believe given how cold it’s been, but the coldest air of the season is still to come in the Northeast this weekend. Wind chills to -30°F or lower Sunday morning. -20 in NYC!! Holy moly. #cold #winter #ArcticBlast #snow

This may be hard to believe given how cold it’s been, but the coldest air of the season is still to come in the Northeast this weekend. Wind chills to -30°F or lower Sunday morning. -20 in NYC!! Holy moly. #cold #winter #ArcticBlast #snow

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Relentless heat! The Heat Dome powering the #heatwave in #Florida, #Texas and across the #Gulf Coast will only grow in intensity over the next week! What you see, is what you get. Tropical humidity will spike Heat Index numbers in Florida to 105-110, Texas 110-120 today. With oppressive #heat persisting through late next week.

Relentless heat! The Heat Dome powering the #heatwave in #Florida, #Texas and across the #Gulf Coast will only grow in intensity over the next week! What you see, is what you get. Tropical humidity will spike Heat Index numbers in Florida to 105-110, Texas 110-120 today. With oppressive #heat persisting through late next week.

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Watch #Melissa meander on a path right through some of the hottest (deep) waters on the planet, powering one of the strongest hurricanes ever, then leave a cool wake behind as it turns hot water into power to charge its rain and wind. The #caribbean in October is notorious for monster hurricanes and Melissa literally moved over the hottest waters not just in the Atlantic but also in the entire Caribbean. How it ended up there is part luck, part climatology, and - in a local sense - partly that storms without steering can sometimes be tugged towards areas with the greatest heat/ instability. #hurricane #fyp #jamaica

Watch #Melissa meander on a path right through some of the hottest (deep) waters on the planet, powering one of the strongest hurricanes ever, then leave a cool wake behind as it turns hot water into power to charge its rain and wind. The #caribbean in October is notorious for monster hurricanes and Melissa literally moved over the hottest waters not just in the Atlantic but also in the entire Caribbean. How it ended up there is part luck, part climatology, and - in a local sense - partly that storms without steering can sometimes be tugged towards areas with the greatest heat/ instability. #hurricane #fyp #jamaica

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Can’t stop. Won’t stop. The models keep insisting on historic cold as the huge Canadian Polar Vortex pays the Eastern US a visit! A pool of record breaking cold 850mb temps and record breaking 500 mb heights (for early-mid Nov) will do a “fly by” Monday-Wednesday as actual surface low temps fall below freezing in the SE US, 30s as far south as Central-North FL!! 40s south of I-4, 50s deep into South FL. #Florida #ColdFront #Freeze #Snow #Winter

Can’t stop. Won’t stop. The models keep insisting on historic cold as the huge Canadian Polar Vortex pays the Eastern US a visit! A pool of record breaking cold 850mb temps and record breaking 500 mb heights (for early-mid Nov) will do a “fly by” Monday-Wednesday as actual surface low temps fall below freezing in the SE US, 30s as far south as Central-North FL!! 40s south of I-4, 50s deep into South FL. #Florida #ColdFront #Freeze #Snow #Winter

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