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Severe Weather 3/15 - 3/16

The wild fires are part of today’s threat though.
This severe weather thread specifically has to do with severe storms and tornadoes. Like Michelle said, because of how busy this event is expected to be THE MODERATORS are saying to move discussions about the fire to that thread.

If this thread included damaging winds, AND tornadoes, AND hail, AND flooding, AND winter weather, AND fire it would be a MESS, which is not what we want during times like this. This website has been there before and it has become to chaotic than it is worth. Separating hazards for the same event is sometimes the best thing.

Turn on (email?) notifications for the threads you are interested in and open new windows for each thread to keep up lol
 
Pretty clear uptrend on HRRR guidance for tonight. Not take-it-to-the-bank levels of confidence, but it's picking up on 1) embedded QLCS rotations, with at least conditional sigtor potential, and 2) some possible stuff out ahead of it, which will likely mingle with the line itself, which could lead to nudgers that enhance QLCS sigtor potential.
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Pretty clear uptrend on HRRR guidance for tonight. Not take-it-to-the-bank levels of confidence, but it's picking up on 1) embedded QLCS rotations, with at least conditional sigtor potential, and 2) some possible stuff out ahead of it, which will likely mingle with the line itself, which could lead to nudgers that enhance QLCS sigtor potential.
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That last picture in the bottom right had discrete cells directly to my SW. I am REALLY WONDERING if they are going to make it to me before the line, or if they will merge with it???
 
I'm not really buying into the tornado threat today at all, but a very big thing to note is all the CAMs were showing 100% cloud coverage from sun up to sundown today. For example, here is yesterday's 12z HRRR forecast for right now. Compare that to current satellite imagery and it's a much different story. If trends continue, i'll be a lot more bullish about today.

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The overall environment and timeline for tomorrow is kind of reminding me of a more widespread version of Feb 23-24, 2016 which ended up spitting out significant tornadoes even after it went linear, as well as plenty of damaging winds. I'm definitely not sleeping on this one.
 
I'm not really buying into the tornado threat today at all, but a very big thing to note is all the CAMs were showing 100% cloud coverage from sun up to sundown today. For example, here is yesterday's 12z HRRR forecast for right now. Compare that to current satellite imagery and it's a much different story. If trends continue, i'll be a lot more bullish about today.

View attachment 51875
View attachment 51874
Not so sure about the strong tornado threat this afternoon across the mid-MSV, but across the lower MSV into the Southeast late tonight is a different story, and with ample WAA and strong forcing, I'm not concerned about cloud cover and diurnal warming at that point.
 
In Trey's newest forecast video, he discusses that there's a solid amount of perpendicularity between the initiating boundary and the 0-3km shear vector with the further north parts of the ENH risk. If the cold front is both slower than anticipated and is indeed much further to the west right now than originally believed from models, I would not sleep on a QLCS tornado risk in that area due to the increased moisture content that will result, especially with those low-level hodographs being shown.
 
Latest HRRR vs. latest RRFS valid at 7pm. Nearly identical
 

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