Robert G. 🇨🇦

Happy first day of meteorological spring! 🌺

Would love some more snowfall observations from areas seeing the storm today! From GFW to the Avalon, including the metro area. It would be greatly appreciated! #NLwx

@rcbstormpost How much snow you got? Airport is only reporting 8 cm total, but if you're saying 2cm/h, I presume you have more :P

Low centre moving away toward the northeast, but a persistent conveyor of moisture wrapping back around it. Rates near 2 cm/hr in #Gander over the past couple of hours. Lesser rates and wetter on the coast and across the Avalon this afternoon where temperatures are milder. #nlwx

@TheNLWX Not sure where you’re getting the idea that rain is at all possible from this system. If, and that’s a big if, it comes close enough to the Avalon, it would be all snow… 🙃

Weather Watch A developing system could bring heavy rain, strong winds, and possible snow to parts of eastern Newfoundland this Saturday. Forecast details are still coming into focus. Stay tuned for updates. #NLwx #nlstorm #nltraffic nlwx.ca/potential-week…

@kellymbutt The saying is “Big snow, little snow”, right!? 😅😂

@robertgwx Update: Snow underway. Grand Bank, yikes.. 😅

Despite the look on radar that snow is moving in quick, there seems to be a considerable amount of virga ahead of this system. Webcams over the southern Burin & Avalon show that although radar suggests snow has begun, it has yet to begin. It should very soon, however. #nlwx

Virga is the scientific term that describes precipitation falling from a cloud that evaporates before making it to the surface. The air between the cloud and the surface is too dry, causing the snow to evaporate. That should change soon and snow will begin. It’s still coming!

@rcbstormpost Had a feeling the observations at YQX were wrong when I did a little quick clear of my walkway 😅

Some very efficient dendritic action today! Measuring 25 cm through 7:30 pm in #GanderWest... quite powdery. Will get updated amount and water equivalent later as it's still coming down at a strong pace. #nlwx

Some pretty poor visibility over parts of southern and eastern Newfoundland this evening, especially over the Burgeo and Bay d’Espoir highways! #NLwx

@allistercanada @msstate Congratulations Allister! Well deserved ☺️

I'm excited to share I have completed @msstate's Bachelor of Science/Meteorology program and am now a certified meteorologist! It's honestly a dream come true. I am incredibly grateful and look forward to this new chapter in my career. #NSwx #NBwx #PEwx #NLwx

@TheNLWX Not a malfunction. Crews had to do work on a tower nearby and due to safety reasons the radar gets blanked out in the sections that could pose a safety risk to those crews. Should be back to full images later this afternoon or early evening.

The #Holyrood radar station seems to be malfunctioning at this hour and only displaying a small sliver of the 360 degree radar scope. #nlwx #nltraffic

@Newfie15243 @EddieSheerr You’re welcome! We have a good amount of people that use #NLwx and I would hate to see people stop using it because of this decision.

@robertgwx @EddieSheerr Thanks Robert, appreciate the reply 👊

How much will this affect our forecasts in Atlantic Canada? #nlwx @EddieSheerr Also why is this a thing?

If only the warning said something along the lines of “High-sided vehicles will be overturned by the wind.” *sigh* 🙃 Peak gust of 134 km/h in the Wreckhouse area as of 10:30 P.M. NST. #NLwx

@kellymbutt Don't break my forecast so early!!!

I can confirm there is wet snow mixing in at times near the airport in St. John's. #NLwx

@rcbstormpost That was the lowest I could find as well, glad it lines up. :)

@robertgwx Lowest I'm seeing is 950.6 mb at Nain (Nov 7, 1987). Lot of stations don't have SLP history going back much past the early 2000s, but that seems to be the best candidate.

As for NOVEMBER barometric pressure history, the previous lowest value recorded at St. John's #YYT during the month has been shattered (963.1 mb on Nov 30, 3019). Dataset goes back to 1959. #nlwx

@MyRadarWX This is actually the island of Newfoundland, not Nova Scotia :)

Wow. The explosively-intensifying storm over Nova Scotia has developed an EYE-like feature! It also has strengthened at twice the rate needed to achieve “bombogensis,” and produced a 100+ mph “sting jet” south of the center. Technically-speaking, nor’easters and mid-latitude storm systems don’t have eyes in the way that hurricanes have eyes. A strong hurricane can develop a clear eye when rising air in the eyewall collides with the “ceiling” of the lower atmosphere; some of the air bounces back down, subsiding, sinking, heating up and drying out. That punches out a hollow, clear eye at the storm’s center. Hurricanes are warm-core systems, and the eye may be 10 to 20 degrees warmer than the surrounding air. Mid-latitude cyclones form from, and feed off of, completely different processes. So what’s causing the eye-like feature? It’s just a “seclusion,” or a pinched-off pocket of dry air from the “dry slot,” as the storm wraps back on itself. It doesn’t have any significance other than looking cool — and marking where the center of low pressure is. Cool stuff though!

@joeyp239 @kellymbutt Also concerning is that this is going to be coinciding with perigean spring tides…coastal flooding is definitely going to be a big concern here too.

@robertgwx @kellymbutt yeah that featue is looking very concerning for cape breton and maybe the avalon to a weaker degree

Our next #NLwx maker will be a strong Fall storm that moves over the island Tuesday into Wed. Rainfall is likely in the 30-50mm+ range for most of the island. West & central may see wet snow mixed on Wed. Wind gusts will be near or in excess of 100 km/h, esp for coastal areas.