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right now temperatures are in the mid 40s, once winds stop some places will get a frost or freeze. San Francisco itself should miss it
850 hPa temperatures at the California - Mexico border are below freezing; colder than at the Vermont-Canada border. Cold enough for snow at higher elevations but the setup wasn't great Surface low over the Colorado Rockies, surface high east of the Cascades in Washington / British Columbia.
Interesting. It's a lot more common here. Vancouver (YVR) averages 3.4 days per year with subzero highs. Incidentally, we almost saw a below freezing high today (high of 0.4C).
Last subfreezing day was just over a year ago, on Feb 8, 2017. Last one before that was just a couple days earlier, on Feb 6th.
Looks like you'll miss an ice day by a few degrees, you'll get sun along with it at least.
850mb (5000' level) was -12.5°C. Impressive! Hence the record lows at the surface in Seattle. Models saw this 7 days out.
Here is this afternoons 5000' temp map.. It's not often you see PacNW colder than -10C at that level. Hence why it's an extremely cold airmass and hence why record lows haven't happened much lately. I rarely see pinks over there.
it's cold for them, but doesn't look extreme like an arctic blast; the places capable of getting very cold "arctic" air are more inland. This setup is creating relatively cold temperatures right along the west coast but nothing that unusual for further inland I think. Interesting the Washington coast has colder 850 hPa than British Columbia to the north. Better mountain blockage?
it's cold for them, but doesn't look extreme like an arctic blast; the places capable of getting very cold "arctic" air are more inland. This setup is creating relatively cold temperatures right along the west coast but nothing that unusual for further inland I think. Interesting the Washington coast has colder 850 hPa than British Columbia to the north. Better mountain blockage?
There's been a super strong temperature gradient across Oklahoma today, with Norman being 20-25°F warmer than OKC for much of the afternoon and evening. The two cities are only ~20 mi apart.
it's cold for them, but doesn't look extreme like an arctic blast; the places capable of getting very cold "arctic" air are more inland.
The airmass is extreme and arctic for them.. I know, doesn't look like it map wise compared to what Eastern U.S gets..... Lets Take a look...
2 Current 850mb Maps...
I don't recall seeing the freezing line off the coast like that all the way down to Latitude 29N in the west. At least not recently? -10C line down to Nevada.
Another look. Use this link to see current 850mb temps. You can change region and even do an archive loop past 2 days at the top.
Yes the only place in earth where its possible to be colder than everywhere else... we generate our own cold it seems... smh. Forecast called for 61 and only 49 so far.... should get to 80 after tomorrow but i doubt we get into the mid 70s forecast tomorrow because of cold air damming.... doubt it will break. Tf type of bs is that... being robbed of our warmup smh.
Read some discussions from there, it certainly was some CAD. And now you have fog to wait for to leave.
Quote:
Originally Posted by ischyros
A forecast high of 71F tomorrow will be flirting with our record high of 72F set just two years ago. Our average high right now is just 42F so tomorrow will be a good 30 degrees above normal.
AC's on tonight in Ohio Valley? 60s in the middle of the night middle of February? I never even had mid 50s as a low in February. Waking up to 60s must feel nuts. I never even had 60s for a low in March.
Already beating their warmest February on record by 2ºF, and the rest of the month looks even hotter
I did say a while back this Feb will destroy the record books. This will only get worse over the years as each year breaks more records.
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