Mark Margavage

Nor'Easter developing over Southern New England.... in MAY! #wxtwitter #wxX

A Line of Thunderstorms are Rolling Across PA this evening Not much in the way of severe wind or hail, but there is a good amount of Lightning and Thunder especially in South Central PA #PAwx #wxtwitter #wxX

Test, Test… is this thing on? 🎤 I’ve been talking a lot about NYC this past week… so, I’m going to go there this weekend. I’ll be sure to share some live videos along the way so you can join me on this adventure. I’m hoping to be able to do a weather forecast with the Statue of Liberty in frame… stay tuned!

2026 Hurricane Season Forecast Overall Forecast: Below Normal Activity Low Chance of Long-Tracked Storms Originating in the MDR. Increased Chance of Short-Tracked storms that form close to the Southeast US coast. #wxtwitter #wxX #Tropicalwx

Congratulations to anyone who picked these along with me!

I think I’m positioned well today. Expecting a high of 69-71° so I took YES on 66, 67, and 68. #forecast #market

This was a big hit today. Congratulations to those of you playing along!

@thedonhu I did because I sold the position at around 1pm

@MeteoMark Did you hit on this?

The pick today for NYC’s High temperature is NO on >65° #Forecast #Market

Thunderstorm Initiation! ⛈️ I am watching a line of Thunderstorms which have quite a bit of lightning blossom in NWPA and SWNY. These storms will begin to march eastward through the afternoon. #PAwx #NYwx #wxtwitter #wxX

@thedonhu The verification site is KLGA. It tends to be cooler than the city

@MeteoMark Youre gonna be cooked gang

*Very high "Home Run Forecast Index" values of 9 and 10 are still hard to come during the next couple of days except for in the state of Texas...that all changes by the weekend and early part of next week as very warm air pushes eastward across the country...80's for example in DC on Saturday and then 90+ degrees possible there on Sunday and Monday...keep track of the all important weather changes at premium.homerunforecast.com* homerunforecast.com #wxtwitter #wxX @MeteoMark

🚨Frost Advisories and Freeze Warnings are in effect tonight. 🚨 Protect your sensitive plants 🪴 #wxtwitter #wxX #gardening

Fire in the sky! A beautiful sunset 🌅 happening now over NEPA 📸: Amanda Mirabelli; Clarks Summit #PAwx #wxtwitter #wxX

@GroveRandall October 1, 1997 vs Feb 1, 1998

@MeteoMark Would u have a map of the el nino of 97 98

El Niño is coming… and it could be a big one! The Forecasted atmospheric response to the onset of El Niño looks very similar to what we saw in 1997-98. There is a pretty subtle but significant difference between the 2026 forecast and 1997 though… and that is the El Niño is being forecast to extend much further west into the Central Pacific than it did in 1997. If you look very closely you can see the green rising air is forecast to be much further west into the Pacific than it was in 1997. If true, remember it still is just a forecast at this point, it would mean that the weather pattern we see in the US would not necessarily be the same weather pattern we saw in 1997-98. So before you get carried away with “Winter is Over” talk here in May… just remember the positioning of these large scale atmospheric circulation cells (called Walker Cells) is very important with regard to precipitation patterns. If you’re in the part of the circulation cell that enhances upward motion, you’ll see more rainfall, however if you’re in a part of the circulation cell that enhances sinking motion, you’ll see less rainfall. For example, during a typical El Niño pattern the sinking portion of a Walker cell is usually positioned over the Tropical Atlantic Ocean which tends to inhibit hurricane development. ~Meteorologist Mark Margavage #wxtwitter #wxX #Tropicalwx

@GroveRandall What type of map? SSTs?

It’s going to be a chilly night tonight… Normally I say wait until Mother’s Day to plant anything sensitive… well this year, you may want to wait an extra week. Frost Advisories and Freeze Watches are in effect for some areas tonight. 🥶 🧊 #PAwx #NYwx #MDwx #WVwx #VTwx #NHwx #wxtwitter #wxX

@PInstinctx You’re exactly correct. They can and will make a difference.

@MeteoMark I've laughed at the people predicting precipitation patterns based on the 3 or 4 Super El Niños on record. Slight changes like what you describe can have huge impacts on those precipitation patterns.

@mallorymicky34 I’m not sure I buy that… if we shift the Walker Cells west of the typical El Niño as the forecasts suggest the El Niño will Extend far to the west, that could put the resulting sinking motion over the Eastern US.

@MeteoMark These meteorologists are telling people who live in GA and FLA to get a boat ready for the winter months.

Mother’s Day Rain Discussion facebook.com/share/v/1E9k1E… #wxtwitter #wxX