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Winter Storm March 1st-2nd (Part 2)


Powerball

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Looks like 3 reasons for the bust in N IL and S WI could be:

 

- Convection in OK robbed moisture further north

- Drier air from the NE winds

- Warm nose around 800-900 mb

 

Any one of these three things could have caused an issue...but when all 3 happen, it won't end well.  That's all fine and good - but why couldn't the computer models pick up on this?  I still laugh at the 1-2 footer that several models were showing in or near this area 3-5 days ago; it's just a horrendous model performance, both in the short-term and medium-term.  No sugar coating. 

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Looks like 3 reasons for the bust in N IL and S WI could be:

- Convection in OK robbed moisture further north

- Drier air from the NE winds

- Warm nose around 800-900 mb

Any one of these three things could have caused an issue...but when all 3 happen, it won't end well. That's all fine and good - but why couldn't the computer models pick up on this? I still laugh at the 1-2 footer that several models were showing in or near this area 3-5 days ago; it's just a horrendous model performance, both in the short-term and medium-term. No sugar coating.

Convection down south was a non-issue.

Things set up farther north, with a mix into S. WI. In addition, a main/sig f-gen band never took shape or persisted, which cut down on totals up north in the main axis.

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Low has not deepened the last 5 hours and is basically moving due east. Nothing to suggest thus far that this thing will keep moving north. I'd say the 12z NAM was noise level change.

 

Already a solid dusting here and moderate snow. Looks like I'm right on the southern edge of the fgen band so hopefully it won't drift too far north.

 

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Looks like 3 reasons for the bust in N IL and S WI could be:

 

- Convection in OK robbed moisture further north

- Drier air from the NE winds

- Warm nose around 800-900 mb

 

Any one of these three things could have caused an issue...but when all 3 happen, it won't end well.  That's all fine and good - but why couldn't the computer models pick up on this?  I still laugh at the 1-2 footer that several models were showing in or near this area 3-5 days ago; it's just a horrendous model performance, both in the short-term and medium-term.  No sugar coating. 

 

DGZ was shallow last night for sure. Couldn't hang onto the big flakes for more than a half hour at one time it seemed.

 

Averaged out to be about 3.0" this morning. Hoping that deformation band continues to expand to the west.

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