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Chicago Storm

Professional Forecaster
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  1. A little more on this now… As I mentioned a few days ago, we will be transitioning to a new pattern late this week into next weekend. This pattern will continue a -PNA, and will introduce a neutral to - EPO/AO/NAO. At face value, this ‘should’ bring more cold and snow opportunities across more of the sub-forum. Obviously any particular threat within this new pattern will rely on how much of a dip that the EPO/AO/NAO is taking at any particular time. .
  2. Making it to Friday (17th) is a lock, but beyond that it’ll likely become fairly dicey. .
  3. As of this time I haven’t seen anything below EF-2, but obviously it’s still early. .
  4. Either way there will be a wind/tornado threat, whether activity is cellular or QLCS.
  5. Outside of the sub-forum, but nice example of a slowly maturing supercell in a high shear environment, near Little Rock. .
  6. Denver finally picked up their first measurable snow of the season today. Poor Matty wasn’t even there for it.
  7. If you believe the HRRR, there will be a fairly significant threat into the LOT CWA now as well. .
  8. Another aspect to watch is the synoptic high wind potential. Should have 45-60MPH wind gusts potential across IL/IN/MI/OH. .
  9. 18z NAM not to HRRR extent, but getting close. .
  10. If the 18z HRRR has any clue on the severe threat tomorrow… .
  11. Severe weather threat looking possible up into the LOT CWA now. .
  12. that was me about a day or so ago. here's the updated one...
  13. The next pattern shift looking likely to occur next weekend (Weekend of 18/19th).
  14. The Euro continues to look the most significant severe weather wise, even well up into IL/IN. .
  15. Let’s talk December 70°’s… They’re very rare, only having happened three times on record. In addition, it has never been achieved after December 3rd. 71° - 12/2/1982 71° - 12/3/1970 70° - 12/3/2012 Note: There has never been a 70°+ temp in winter between 12/4 and 2/10.
  16. No, that’s not what that means. 150 years worth of December days is 4,650 days. If only 77 December days during that 150 years have hit 60°+, only an extremely small amount of December days actually get into the 60°’s. .
  17. Might be about time to break out some stats today. .
  18. 12z Euro continues its own trend of a snowstorm on the north side and sig severe on the south side of that Fri/Sat storm system. .
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