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March 22-28, 2023 | Severe Weather/Heavy Rain/Flooding


Iceresistance

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12z CIPS analog runs are in, Thursday is even less impressive than last night's run. Friday remains impressive (still ignoring #11) with 2/5/08 now being the #1 analog. I doubt that happens, but there does seem to be some solid tornado potential for Friday. 

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2 hours ago, ElectricStorm said:

12z CIPS analog runs are in, Thursday is even less impressive than last night's run. Friday remains impressive (still ignoring #11) with 2/5/08 now being the #1 analog. I doubt that happens, but there does seem to be some solid tornado potential for Friday. 

15z SREF currently has Thursday and the STI is maxed at 30% in Eastern Oklahoma.

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3 hours ago, Iceresistance said:

15z SREF currently has Thursday and the STI is maxed at 30% in Eastern Oklahoma.

I'm not really sold on Thursday being a big tornado day, shear doesn't look too great, and moisture return could be an issue, at least for parts of OK. Definitely should be a big hail/wind day though and we'll probably see at least a few tors. 

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9 hours ago, ElectricStorm said:

I'm not really sold on Thursday being a big tornado day, shear doesn't look too great, and moisture return could be an issue, at least for parts of OK. Definitely should be a big hail/wind day though and we'll probably see at least a few tors. 

SPC is not very interested in Oklahoma getting the severe weather right now, Western Texas may get it though.

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3 hours ago, Iceresistance said:

SPC is not very interested in Oklahoma getting the severe weather right now, Western Texas may get it though.

Yeah looks like storm mode will be pretty messy along the front. Combine that with the parallel shear vectors and that's not gonna get it done. Could end up being a decent rain event though hopefully. 

Still should get some big hailers and maybe some wind in TX though, but the overall event is looking pretty meh. 

Edited by ElectricStorm
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Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0234 AM CDT Wed Mar 22 2023

   Valid 241200Z - 251200Z

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN
   LOUISIANA...SOUTHWEST ARKANSAS...AND WESTERN MISSISSIPPI...

   ...SUMMARY...
   Supercell thunderstorms capable of all severe hazards, including
   strong tornadoes, are possible across the Lower Mississippi Valley
   on Friday.

   ...Synopsis...
   The upper pattern early Friday morning will likely be characterized
   by broad troughing across the western CONUS and subtropical ridging
   centered over the Straits of Florida. Enhanced mid-level flow will
   extend throughout western and southern periphery of the upper trough
   and then throughout the northwestern periphery of the subtropical
   ridge. A low-amplitude shortwave trough is forecast to move from the
   base of the upper trough quickly eastward across the southern Plains
   throughout the day, and then more northeastward across the Mid-South
   overnight. Strong mid-level flow (i.e. 100 kt at 500-mb) will
   accompany this shortwave, spreading across TX into the Mid-South. 

   The surface pattern preceding this shortwave trough is expected to
   feature a low over north TX early Friday, with a cold front
   extending southward from this low into the TX Hill Country and a
   stationary front extending northeastward into the Middle OH Valley.
   This low is forecast to move northeastward throughout the day, while
   deepening significantly.

   ...Lower MS Valley...
   Expectation is for a broad area of upper 60s dewpoints to be in
   place from east TX across the Lower MS Valley, ahead of the surface
   low and associated front. Cloud cover may temper daytime heating,
   but afternoon temperatures will likely still reach the 80s,
   contributing to moderate buoyancy across much of the region. In
   addition to this buoyancy, moderate mid-level flow atop
   strengthening low-level flow (supported by the maturing cyclone
   ahead of the approaching shortwave trough) will contribute to long
   hodographs with substantial low-level magnitude and veering. As a
   result, the environment will be very favorable for supercells.  
    
   Current expectation is for storms to develop during the afternoon
   over southwest AR and western LA (perhaps as far west as east TX). 
   This development should occur ahead of the cold front within the
   open warm sector, maturing as it moves eastward across the Lower MS
   Valley. A discrete supercell mode is anticipated initially, with all
   severe hazards possible, including strong tornadoes. Upscale growth
   into a convective line is anticipated after this initially discrete
   mode, with the line pushing eastward across MS and AL overnight.

   ...Mid MS Valley...
   Despite less buoyancy that areas farther south, augmented forcing
   for ascent close to the surface low could result in bowing line
   segments capable of damaging wind gusts and embedded tornadoes
   Friday afternoon through Friday evening.

   ..Mosier.. 03/22/2023

image.png

Edited by StormfanaticInd
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  • The title was changed to March 21st-?, 2023 | Severe Weather/Heavy Rain/Flooding
  • Meteorologist

At this point I just hope the storm pattern stays this active when it shifts north. We've been in the dry slot region for every storm but that February squall line. NAM has some backside rain for south-central Kansas but I don't trust those amounts lol. I'd take them in a heartbeat if we got them though lol. 

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2 hours ago, Iceresistance said:

I had to push the start of the Severe weather to today for a Marginal Risk in Northern Indiana, Northern Illinois, Northern Missouri, and Southern Iowa.

Today is the 22nd so I don’t think you had to change it.

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  • The title was changed to March 22nd-?, 2023 | Severe Weather/Heavy Rain/Flooding

12z HRRR out here trying to give us like 3-4 rounds of storms tomorrow lol

Obviously I'm interested in tomorrow since that involves my area but I'm getting pretty concerned about Friday. Really starting to look like a potentially big tornado day after all. 

 

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1 hour ago, ElectricStorm said:

12z HRRR out here trying to give us like 3-4 rounds of storms tomorrow lol

Obviously I'm interested in tomorrow since that involves my area but I'm getting pretty concerned about Friday. Really starting to look like a potentially big tornado day after all. 

 

Hope everyone stays safe.  May need a boat here.

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