Winter Thread 2018-19 (Northern Hemisphere) (snow, warm, temperatures, day)

[Cambium]

Islip Long Island from 50F to 9F within 15 hrs.

[LKJ1988]

Fast warm up starting tonite.

[Cambium]

7am Temps Jan 21, 2019.


Well below normal from Canada to the south tip of Florida.


Pinks and Purples are below 20°F temps







850mb temps. First time seeing wide spread -20C airmass in the Northeast. Coldest of the season happening right now.





And here's the Upper Height Pattern. Omega. Trough in West. Trough in East. Ridge in Middle.

[Cambium]

5000' Temps.


It's below 0°F over the Atlantic off NJ, NY even as far south as Delaware and Maryland.
Ocean Effect Snow showers out there.


Keep this up and the Long island Sound will start freezing over like Feb 2015

[chicagogeorge]

https://twitter.com/NWSChicago/statu...27645501673472




https://wgntv.com/2019/01/20/heavies...r-king-jr-day/

[chicagogeorge]

We get into the warm sector of another low pressure system tomorrow. Rain?

https://twitter.com/Met_khinz/status...10033132625922



Very cold MLK Holiday morning

https://twitter.com/Met_khinz/status...18353767788544




Lake Michigan starting to freeze over.

https://twitter.com/ThomMoorePhotos/...07323917729796

[ischyros]

More sunshine today, though highs only in the low teens. Tomorrow will be interesting. Air temps will quickly warm tomorrow afternoon into the upper 30s near 40 with rain moving in, but the NWS has a fear that this very cold air will keep road temperatures below freezing for quite a while after the rain starts. So it may be 37 degrees and rain but it may still freeze with the roadways. Hopefully it waits until after the evening rush hour tomorrow as the storm does seem to be a bit slower than originally forecast. Another arctic blast later this week!

[cBach]

Partly cloudy and 35 in Austin. On the way to 62 with mostly sunny skies. Plants going outside once it's above 40, maybe around 9 AM.

[lommaren]

All of Finland really cold now, with even areas on the coast in the south being around -10°C. Peninsular Southern Sweden is shielded from this cold outbreak and it's only slightly below freezing in Nyköping. Nevertheless, it doesn't take that many latitudes north from here to see subfreezing Fahrenheit temperatures (61°N in Dalarna County). That being said, southerlies are currently drawing milder air here, had the wind direction been the opposite this would've been a certain double-digit freezing day here.

[lommaren]

Newfoundland and Northeastern Nova Scotia are rather exempt from the North American cold wave/Hudson Bay polar air outbreak this morning, to say the least! What's also worth noting is that offshore areas from New York City dozens of miles from the shore are -10°C, with even offshore areas dozens of miles off 38°N being at -6°C!