Great Plains, Midwest, & Deep South Storm Season 2021

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Iceresistance
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#941 Postby Iceresistance » Thu Apr 22, 2021 7:21 am

Severe storms STILL possible Next Tuesday, the Euro model consistency is crazy!

Image
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#942 Postby ElectricStorm » Thu Apr 22, 2021 9:58 am

Iceresistance wrote:Severe storms STILL possible Next Tuesday, the Euro model consistency is crazy!

https://s3.gifyu.com/images/day6prob.gif

The GFS might be caving towards the Euro, so if the Euro ends up being correct, assuming there's no cap issues, this could be huge.
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#943 Postby Iceresistance » Thu Apr 22, 2021 10:12 am

Weather Dude wrote:
Iceresistance wrote:Severe storms STILL possible Next Tuesday, the Euro model consistency is crazy!

https://s3.gifyu.com/images/day6prob.gif

The GFS might be caving towards the Euro, so if the Euro ends up being correct, assuming there's no cap issues, this could be huge.

Also assuming that the cap is not too strong, but strong enough to only allow the strongest supercells to form . . .

Latest SREF model may warrant a Enchanced risk in SE Texas Tomorrow . . .

Image
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Bill 2015 & Beta 2020

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Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#944 Postby ElectricStorm » Thu Apr 22, 2021 10:16 am

Iceresistance wrote:
Weather Dude wrote:
Iceresistance wrote:Severe storms STILL possible Next Tuesday, the Euro model consistency is crazy!

https://s3.gifyu.com/images/day6prob.gif

The GFS might be caving towards the Euro, so if the Euro ends up being correct, assuming there's no cap issues, this could be huge.

Also assuming that the cap is not too strong, but strong enough to only allow the strongest supercells to form . . .

Latest SREF model may warrant a Enchanced risk in SE Texas Tomorrow . . .

https://s3.gifyu.com/images/SREF_prob_combined_sigtor__f039.gif

The CAMs last night had messy storm modes which is why they didn't go enhanced for now. The SREF only takes into account favorable storm mode, so if it's messy then then it won't matter as much. Still though, seeing a 90 contour is concerning. I think they'll upgrade to enhanced for hail and maybe tornadoes at some point.
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#945 Postby Iceresistance » Thu Apr 22, 2021 11:35 am

I found this sounding near Tecumseh, OK at +36 Hours . . .

Image

What makes the sounding interesting is that it's in a SCP of a 1 . . . :roll:
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Bill 2015 & Beta 2020

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All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#946 Postby Iceresistance » Thu Apr 22, 2021 5:39 pm

Found this 18z GFS Model sounding . . .

Near Tecumseh, OK
Image

South of Anadarko, OK. Sounding is from the NAM model, 18z
Image
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#947 Postby ElectricStorm » Thu Apr 22, 2021 6:27 pm

18z GFS continues to trend towards the Euro in regards to timing for Tuesday. Shows plenty of moisture, but still shows hardly any cape, so not really sure what's up with that. Maybe it's an issue with the upgrade as it seems to be doing this with multiple events now. Anyway for now I think a Day 5 enhanced is possible, but I wouldn't be surprised if they wait until Day 4. We'll see what the 0z models have.

Tuesday certainly has a very high ceiling but obviously nothing is set in stone until the day of. One thing that shouldn't be an issue though is morning convection, although cloud cover could be an issue, but again that's another thing that won't be known until the day of. It's not impossible that a 4/26/16 scenario could happen, but I'm leaning against that for now.

So basically Tuesday could be big, but nothing is guaranteed. We'll see...
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#948 Postby Iceresistance » Thu Apr 22, 2021 7:20 pm

Weather Dude wrote:18z GFS continues to trend towards the Euro in regards to timing for Tuesday. Shows plenty of moisture, but still shows hardly any cape, so not really sure what's up with that. Maybe it's an issue with the upgrade as it seems to be doing this with multiple events now. Anyway for now I think a Day 5 enhanced is possible, but I wouldn't be surprised if they wait until Day 4. We'll see what the 0z models have.

Tuesday certainly has a very high ceiling but obviously nothing is set in stone until the day of. One thing that shouldn't be an issue though is morning convection, although cloud cover could be an issue, but again that's another thing that won't be known until the day of. It's not impossible that a 4/26/16 scenario could happen, but I'm leaning against that for now.

So basically Tuesday could be big, but nothing is guaranteed. We'll see...


What happened on April 26th, 2016?

The 18z GFS is showing lesser amounts of ESRH (Effective Storm-Relative Helicity) & STPC during the run, evidenced by the Model Soundings . . .
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#949 Postby ElectricStorm » Thu Apr 22, 2021 7:53 pm

Iceresistance wrote:
Weather Dude wrote:18z GFS continues to trend towards the Euro in regards to timing for Tuesday. Shows plenty of moisture, but still shows hardly any cape, so not really sure what's up with that. Maybe it's an issue with the upgrade as it seems to be doing this with multiple events now. Anyway for now I think a Day 5 enhanced is possible, but I wouldn't be surprised if they wait until Day 4. We'll see what the 0z models have.

Tuesday certainly has a very high ceiling but obviously nothing is set in stone until the day of. One thing that shouldn't be an issue though is morning convection, although cloud cover could be an issue, but again that's another thing that won't be known until the day of. It's not impossible that a 4/26/16 scenario could happen, but I'm leaning against that for now.

So basically Tuesday could be big, but nothing is guaranteed. We'll see...


What happened on April 26th, 2016?

The 18z GFS is showing lesser amounts of ESRH (Effective Storm-Relative Helicity) & STPC during the run, evidenced by the Model Soundings . . .

15 hatched moderate in OK/KS. Pre-squall tornado threat completely busted, but the squall line had some potent winds. Lots of cloud cover
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#950 Postby Iceresistance » Thu Apr 22, 2021 7:59 pm

Weather Dude wrote:
Iceresistance wrote:
Weather Dude wrote:18z GFS continues to trend towards the Euro in regards to timing for Tuesday. Shows plenty of moisture, but still shows hardly any cape, so not really sure what's up with that. Maybe it's an issue with the upgrade as it seems to be doing this with multiple events now. Anyway for now I think a Day 5 enhanced is possible, but I wouldn't be surprised if they wait until Day 4. We'll see what the 0z models have.

Tuesday certainly has a very high ceiling but obviously nothing is set in stone until the day of. One thing that shouldn't be an issue though is morning convection, although cloud cover could be an issue, but again that's another thing that won't be known until the day of. It's not impossible that a 4/26/16 scenario could happen, but I'm leaning against that for now.

So basically Tuesday could be big, but nothing is guaranteed. We'll see...


What happened on April 26th, 2016?

The 18z GFS is showing lesser amounts of ESRH (Effective Storm-Relative Helicity) & STPC during the run, evidenced by the Model Soundings . . .

15 hatched moderate in OK/KS. Pre-squall tornado threat completely busted, but the squall line had some potent winds. Lots of cloud cover


A couple years ago, there was a 15% Hatched along I-44 from Chandler to Vinita that COMPLETELY busted, but the winds were nasty there . . . (Up to 85 mph winds were reported in Pryor)
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#951 Postby ElectricStorm » Thu Apr 22, 2021 8:40 pm

0z HRRR still has a messy storm mode for tomorrow in TX. What interests me though is that squall line it's showing for central/eastern OK. Might get upgraded to a slight risk if that verifies.
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#952 Postby ElectricStorm » Fri Apr 23, 2021 12:21 am

Personal outlook predictions for tonight:
Day 1 (Fri)- Coin flip between slight and enhanced. I could see an enhanced for hail, but I doubt they go enhanced for tornadoes.
Day 2 (Sat)- Slight. It's got potential to get upgraded later but I think they maintain the slight risk for the first Day 2 outlook.
Day 5 (Tue)- Coin flip between slight and enhanced. I wouldn't be surprised by either honestly. Could go either way.
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#953 Postby ElectricStorm » Fri Apr 23, 2021 12:57 am

Day 1 enhanced for a 30% wind risk
Image

Big slight risk for Day 2. They do mention higher probs may be needed in future outlooks.
Image
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#954 Postby Iceresistance » Fri Apr 23, 2021 6:40 am

10z HRRR has a Bow Echo Squall line over me at +18 hours! :eek:
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#955 Postby cstrunk » Fri Apr 23, 2021 7:49 am

The East Texas and Louisiana threat looks pretty dang messy and will be in questionable to poor chase terrain. The extreme NW Texas threat looks like a pretty good bet to at least see 2-3 isolated supercells. The tornado threat may be a tad bit lower but from a storm chasing perspective, that's where I would target.
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#956 Postby ElectricStorm » Fri Apr 23, 2021 7:57 am

Enhanced risk added for today for central/southern OK
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#957 Postby ElectricStorm » Fri Apr 23, 2021 8:09 am

Day 5 still remains a slight risk. One thing to note is that the 6z GFS has the system moving slower, closer to the Euro solution, which would favor the higher threat...
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#958 Postby Iceresistance » Fri Apr 23, 2021 8:42 am

ENHANCED risk now in place in Central & Southern Oklahoma!

Image

The Enhanced risk is mainly for wind.
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!

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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#959 Postby InfernoFlameCat » Fri Apr 23, 2021 8:44 am

April be dud unless tuesday produces something big
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Re: Great Plains, Midwest, & Deep South Storm Season 2021

#960 Postby Iceresistance » Fri Apr 23, 2021 9:01 am

InfernoFlameCat wrote:April be dud unless tuesday produces something big


Well, Today may be big with Wind . . .

12z HRRR Model . . .

Image

Image
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!


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