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Chinook

Meteorologist
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Everything posted by Chinook

  1. NAM-12km has sleet/freezing rain at 33 hrs, with this cross section showing the warm and cold layers that could cause this (see radar in the corner)
  2. The recent storm on Wednesday reminded me of this event in terms of low pressure placement In other ways, the Dec 23-24 2022 was a lot more like 1/5/2014 in terms of true cold dumpage. As a general meteorological term, the polar vortex normally is in one or multiple 500mb lows in the far north, and contains the lowest 500mb heights and temperatures, and is also linked to the lowest 850mb temperatures of the Northern Hemisphere. Sometimes a distinguishable 500mb vortex can travel to mid Canada or lower Canada and dump the cold into the USA. In the case of 1/4/2014 to 1/8/2014, a very cold air mass, essentially a cut off polar vortex, converted its (maybe) -40C air at 500mb into a snowstorm and a dangerous wind chill scenario for the US and lower Canada. Some heavy snow came through Toledo, and I wasn't there for it, of course. But hey, I still have at least one picture from my parents. Pretty much everybody on this discussion board felt low wind chills on those days. As you can see from the observations, the low pressure went just south of Toledo.Thhere was 12.5" measured in NW Ohio, with winds of 15kt to 20kt in NW Ohio and northern Indiana. There were -40F to -46F wind chills at Toledo on the January 6th-7th. I believe there was a near record-breaking -30C temperatures at 850mb measured at Detroit DTX while there was decent wind. Some areas of the Midwest had -59F wind chills according to one of the maps below. my 500mb loop http://www.greatlakes.salsite.com/Jan_5_2014_storm_loop.html forecast: 232 Kelvin is -41 celsius
  3. reasons why Greybull may have the driest soil in the northern US
  4. There's a winter storm warning for several counties in Michigan now.
  5. Got some decent size snowflakes and wet streets from 5:00-5:30
  6. anybody getting snow on the streets in N Indiana right now?
  7. I got 4.0 to 4.5" with pretty high density snow, with less than 4.0" snow depth on pavement, for sure. I think Toledo Express Airport has gotten 0.55" of water equivalent, so that could have normally been 5.5" to 6.0" on grass. It does look like 6.0" at Napoleon or Defiance with also over 6" towards Ann Arbor. I wonder what the COCORAHS spotters will see for their water equivalent of snow for the 2-day period. My area certainly could be 0.55" like Toledo Express Airport.
  8. I just as I posted the SPC mesoscale discussion graphic, and now... the big snowflakes are here. There are aggregate snowflakes or whatever the term is, snowflakes sticking to snowflakes. It's going to be accumulating 1" per hour for a couple of hours at least.
  9. At my place, snow is covering the grass, mainly. Below: this SPC mesoscale discussion for snow is probably the only time I'm going to get a mesoscale discussion at my location for quite some time.
  10. This was a snow storm for Colorado, just not where any of us live (or lived, in my case.)
  11. This minor storm is centered around KC and the ongoing KC vs Jacksonville game, but not much to speak of at the stadium, and rain for you guys that are the main people in this thread.
  12. I didn't think this one would have much, but maybe I can take some nice pictures of snowflakes and snow cover. I didn't really take a picture of the outside with the Dec 23-24 ground blizzard, as there was some grass showing, and it was a wind chill of -29 and stuff like that. HREF says 4-6" in coming! ha ha ha. That's the max value of the CAM models, so yeah, it's too high. Honestly I think observations might be 1.5" or 2.0" by tomorrow night or Monday.
  13. I saw lightning at Toledo at 5:30PM, and it was not far away, as the thunder was quite soon. I really and truly haven't had a +RA in January since before I moved to the Western US. It's just so strange.
  14. These images are from somewhat earlier. There have not been a lot of new storm reports
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