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“Cory’s in NYC! Let’s HECS!” Feb. 22-24 Disco


TheSnowman
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42 minutes ago, Prismshine Productions said:

Yo Boone, been awhile! Maybe you should move up here one of these days to cash in on the goods. XD

Sent from my SM-S166V using Tapatalk
 

You guys don’t have sweet tea or Bojangles up there. It’s a non starter lol. Enjoy my friend! That low is starting to crank off of Hatteras - north west flow already ensuing a few miles to my west. 

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I've been looking at the evaluation webpage again. This time, for precipitation (at fcst 24hr for 12z cycles) thresholds. Anywho, for frequency bias, an ideal prediction is 1.0. Negative values indicates underprediction (doesn't predict the occurrence as much as it should), and + values indicate overprediction (predicts the occurrence too often). Note: The NAM 3km consistency overpredicts for all thresholds and is outperformed by the other mesos.

evs.cam.fbias.apcp_a24.last90days.threshmean_init12z_f024.buk_conus.png

For equitable threat score (removes outliers), an ideal prediction is 1.0 (0.0 indicating no skill). Based on this metric, HRRR performs best for all thresholds over the past 90 days:

 evs.cam.ets.apcp_a24.last90days.threshmean_init12z_f024.buk_conus.png

Seeing some of the globals trend unfavorably will only bother me if the mesos follow.

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I haven't see this talked about much but what I think is really going to be a killer in this is going to be areas of major subsidence. I've always been fearful we see a banded precipitation field given how intense the low becomes, but none of the simulated radar reflectivity's have shown this. However, I think it's kind of evident in looking at the fronto banding signatures. 

Ultimately what will happen is there will be spots which make out beautifully and score in the upper end of ranges and there will be spots which struggle to even get to the lower end. No way to really paint that on a map either 

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