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Mark Margavage

@MeteoMark • 16,275 subscribers

Meteorologist, Winter Weather Specialist, and Snow Storm Chaser. Certified Airman 👨🏻‍✈️ PSU 2008. Wilkes U. 2016

Shorts

There are 2 unusual aspects of today's satellite imagery: 1. It's May 30th and there's a Nor'Easter. 2. This Nor'Easter is moving south rather than north. #wxtwitter #wxX

There are 2 unusual aspects of today's satellite imagery: 1. It's May 30th and there's a Nor'Easter. 2. This Nor'Easter is moving south rather than north. #wxtwitter #wxX

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Weekend Storm Update Despite what you might have heard… I am STILL tracking the potential for a significant snow event this weekend. If it happens, the snow would arrive Sunday afternoon/evening. Model Guidance has been all over the place but I’ve been fairly consistent with my message: This looks like a Miller B Nor’Easter. Miller B storms typically have a mix line that sets up along I-78/I-80 in eastern PA and NJ. The European Model suggests that mix changes over to heavy snow as this storm strengthens. Whether or not that actually happens is pure speculation at this point. There are some non-linear processes that need to go exactly correct for this storm to produce significant snow. If not, the storm could miss off to the south. So nothing is set in stone yet, but the threat remains. ~Meteorologist Mark Margavage #wxtwitter #wxX #PAwx

Weekend Storm Update Despite what you might have heard… I am STILL tracking the potential for a significant snow event this weekend. If it happens, the snow would arrive Sunday afternoon/evening. Model Guidance has been all over the place but I’ve been fairly consistent with my message: This looks like a Miller B Nor’Easter. Miller B storms typically have a mix line that sets up along I-78/I-80 in eastern PA and NJ. The European Model suggests that mix changes over to heavy snow as this storm strengthens. Whether or not that actually happens is pure speculation at this point. There are some non-linear processes that need to go exactly correct for this storm to produce significant snow. If not, the storm could miss off to the south. So nothing is set in stone yet, but the threat remains. ~Meteorologist Mark Margavage #wxtwitter #wxX #PAwx

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The “Out to Sea” A.I. Models are backing up like dump trucks ready to dump a whole bunch of snow on us. #wxtwitter #wxX

The “Out to Sea” A.I. Models are backing up like dump trucks ready to dump a whole bunch of snow on us. #wxtwitter #wxX

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SLAMMING THE DOOR ON SUMMER 🚪 a BIG cooldown is coming 🥶 on the backside of Hurricane Erin 🌬️ to close out August. #wxtwitter #wxx

SLAMMING THE DOOR ON SUMMER 🚪 a BIG cooldown is coming 🥶 on the backside of Hurricane Erin 🌬️ to close out August. #wxtwitter #wxx

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“Valentines Weekend” Storm Update 🌹She loves me… (Euro AI) 🥀She loves me not… (ECMWF) My take is the Operational European has a suppression bias when it comes to Miller B storms. We saw that with the storm back on January 25th, so I would side with the further north, AI solution on this one…for now. Still a long way off. #wxtwitter #wxX

“Valentines Weekend” Storm Update 🌹She loves me… (Euro AI) 🥀She loves me not… (ECMWF) My take is the Operational European has a suppression bias when it comes to Miller B storms. We saw that with the storm back on January 25th, so I would side with the further north, AI solution on this one…for now. Still a long way off. #wxtwitter #wxX

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A Dramatic End to Summer... After a surge of Warmth next week, Fall-like Weather arrives promptly on August 1st! 🤩 #wxtwitter #wxX

A Dramatic End to Summer... After a surge of Warmth next week, Fall-like Weather arrives promptly on August 1st! 🤩 #wxtwitter #wxX

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6am Pikesville MD #MDwx

6am Pikesville MD #MDwx

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Southern New England has gotten absolutely blasted by snow today. An arctic cold front merged with an inverted trough to produce very heavy snow in a narrow area. This was discussed in my forecast, but reality has overperformed my expectations and every model forecast there was. Wow! I have a few reports of OVER 12” in Massachusetts and a widespread 6-10” in Rhode Island today. #MAwx #RIwx #wxtwitter #wxX

Southern New England has gotten absolutely blasted by snow today. An arctic cold front merged with an inverted trough to produce very heavy snow in a narrow area. This was discussed in my forecast, but reality has overperformed my expectations and every model forecast there was. Wow! I have a few reports of OVER 12” in Massachusetts and a widespread 6-10” in Rhode Island today. #MAwx #RIwx #wxtwitter #wxX

13,869 просмотров

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It’s going to be VERY Smokey tonight and tomorrow 💨 #wxtwitter #wxX

It’s going to be VERY Smokey tonight and tomorrow 💨 #wxtwitter #wxX

248,884 просмотров • 2 месяцев назад

The 6z GFS has come North and West of the 0z run with an All-Out Blizzard If this trend continues, and I suspect it will based on where the energy is coming ashore, this will be remembered as The Blizzard of ‘26. #wxtwitter #wxX

The 6z GFS has come North and West of the 0z run with an All-Out Blizzard If this trend continues, and I suspect it will based on where the energy is coming ashore, this will be remembered as The Blizzard of ‘26. #wxtwitter #wxX

242,693 просмотров • 6 месяцев назад

BIG changes to the snowfall expectations in Pennsylvania 👎⏬ 😭 #PAwx #wxtwitter #wxX

BIG changes to the snowfall expectations in Pennsylvania 👎⏬ 😭 #PAwx #wxtwitter #wxX

200,863 просмотров • 6 месяцев назад

If you take the CanSIPS August update literally, Northeast Pennsylvania is in for a lot of snow this Winter! #winteriscoming

If you take the CanSIPS August update literally, Northeast Pennsylvania is in for a lot of snow this Winter! #winteriscoming

45,185 просмотров • 1 месяц назад

I will repeat for the Heatmisers... The Northeast US will NOT be participating in any big Winter ending warm-ups. Keep kicking those cans down the road into March and April. Eventually Spring will come. #wxtwitter #wxX

I will repeat for the Heatmisers... The Northeast US will NOT be participating in any big Winter ending warm-ups. Keep kicking those cans down the road into March and April. Eventually Spring will come. #wxtwitter #wxX

150,926 просмотров • 7 месяцев назад

WINTER FORECAST 2025-26 Right or wrong, at least it will give you something to talk about over your dinners. May you and your families have a safe and happy Thanksgiving! ~Meteorologist Mark Margavage #winteriscoming #wxtwitter #wxX #snow #WinterForecast

WINTER FORECAST 2025-26 Right or wrong, at least it will give you something to talk about over your dinners. May you and your families have a safe and happy Thanksgiving! ~Meteorologist Mark Margavage #winteriscoming #wxtwitter #wxX #snow #WinterForecast

164,222 просмотров • 9 месяцев назад

I’m seeing a lot of arctic air in the forecast! We also have a Polar Vortex Split headed our way. Which means… Spring may not get sprung until April this year. #wxtwitter #wxX

I’m seeing a lot of arctic air in the forecast! We also have a Polar Vortex Split headed our way. Which means… Spring may not get sprung until April this year. #wxtwitter #wxX

38,243 просмотров • 6 месяцев назад

The Heatmisers are officially on suicide watch as the big warm-up evaporates before their eyes. Like it or not, this extreme Winter season in the eastern US is far from over. #wxtwitter #wxX

The Heatmisers are officially on suicide watch as the big warm-up evaporates before their eyes. Like it or not, this extreme Winter season in the eastern US is far from over. #wxtwitter #wxX

39,237 просмотров • 7 месяцев назад

It’s over. Canadian model wins. ✅👑 0z HRRR is all in on an Eastern PA-Interior New England Bullseye 🎯. I-95 is the mix line. If you don’t believe it at this point, you never will. #wxtwitter #wxX

It’s over. Canadian model wins. ✅👑 0z HRRR is all in on an Eastern PA-Interior New England Bullseye 🎯. I-95 is the mix line. If you don’t believe it at this point, you never will. #wxtwitter #wxX

52,508 просмотров • 1 год назад

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