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Texas/Oklahoma Discussion & Obs Thread 2022


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Tomorrow could be an interesting day.

DFW is under a slight risk for severe weather and FWD has added the severe wording to the grids east of I-35E.

That said, the higher severe probabilities us just east of here and the grids only have a 20-30% chance of precipitation.

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6 hours ago, Powerball said:

Tomorrow could be an interesting day.

DFW is under a slight risk for severe weather and FWD has added the severe wording to the grids east of I-35E.

That said, the higher severe probabilities us just east of here and the grids only have a 20-30% chance of precipitation.

FWD has bumped up PoPs to 40-50%.

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Mesoscale Discussion 0253
   NWS Storm Prediction Center Norman OK
   0237 PM CDT Mon Mar 14 2022

   Areas affected...Parts of north-central/northeast Texas and
   southeastern Oklahoma

   Concerning...Severe potential...Watch likely 

   Valid 141937Z - 142100Z

   Probability of Watch Issuance...80 percent

   SUMMARY...The risk for large hail, damaging wind gusts, and a
   tornado or two should develop between 21Z-23Z. Watch issuance is
   likely in the next couple hours.

   DISCUSSION...Latest water vapor imagery depicts an upper-level
   trough moving eastward across the southern Plains, with an
   accompanying midlevel speed maximum moving through the base of the
   trough. Over the next couple hours, increasing forcing for ascent
   preceding the trough will overspread a destabilizing air mass across
   parts of north-central/northeast Texas and southeastern Oklahoma.
   Here, latest surface observations show southerly surface winds and
   dewpoints in the lower/middle 50s ahead of a surface trough/dryline
   feature. Visible satellite imagery shows increasingly agitated
   cumulus fields developing across the warm sector, where surface
   pressure falls are evident. Convection should initiate between
   21Z-23Z along/ahead of the surface trough/dryline, and move eastward
   into the destabilizing air mass characterized by MLCAPE of 1000-1500
   J/kg. As the trough continues eastward, deep-layer shear will
   gradually increase to 40-50 knots, with effective SRH of 150-200
   m2/s2. Initial convection may remain somewhat discrete, and
   steepening midlevel lapse rates combined with the favorable
   deep-layer shear should support large hail and perhaps a tornado or
   two. With time, forcing for ascent will increase as a cold front
   approaches from the west, favoring upscale growth and a greater risk
   of wind damage and embedded tornadoes with eastward extent.

   ..Weinman/Mosier.. 03/14/2022

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...SHV...TSA...HGX...FWD...OUN...EWX...

   LAT...LON   31489514 31209567 30319702 30569749 31659741 32469734
               33309725 33939664 34309574 34209466 33799443 33429424
               32989416 32149414 31839425 31619463 31489514 
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2 hours ago, Powerball said:

Maybe, depending on how the radar looks this evening.

Hi-Res models are now back to holding off intitiation until just east of DFW.

*sigh*

True the HRRR is back east, but its soundings show >1500j/kg in an uncapped atmosphere along and east of 35 by 5pm. Not going to take much to get storms to initiate west of where it currently depicts. 
 

NAM, ARW, and ARW2 are closer to 35 with initiation.

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1 minute ago, Chreeyiss said:

True the HRRR is back east, but its soundings show >1500j/kg in an uncapped atmosphere along and east of 35 by 5pm. Not going to take much to get storms to initiate west of where it currently depicts. 
 

NAM, ARW, and ARW2 are closer to 35 with initiation.

FWD has knocked PoPs back down to around 40-50%.

That said, CU field is filling back in after a brief break.

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I've been getting thundershowers on the west side of Fort Worth.  There are other thundershowers (at the time of writing) as far west as Lipan, on what appears to be a frontal boundary along a Saint Jo-Decatur-Weatherford-Stephenville line.  Given the lower dewpoints and high LCLs in that direction, I suspect these are high-based.

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Today has met my expectations here in Dallas proper. It’s hailed 3 times here in the last hour, though fairly small. Got some good bursts of rain and a couple nice SLCs to look at. Maybe more on the way judging by radar, though I imagine these latest storms have probably tapped most of the good conditions over me.

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Congrats to those who did get in on some action.

Other than a few raindrops and an occasional distant rumble of thunder, we've had zilch here.

Something could still happen, but I suspect the storms in every which direction but here have worked over the atmosphere too much.

2022 starting off just like 2021! :)

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6 hours ago, Powerball said:

Lapse rates are looking pretty poor on Monday.

Seems more like a heavy rain vs severe setup.

True, I guess we will see. The shear profiles look very favorable across the eastern half of Texas, and the SPC notes this in their convective outlook as well. GFS does sometimes underestimate instability and lapse rates on these early season events, but I wouldn't be surprised the event busts up here for the reason you mentioned. CLL and south may end up being the bullseye where thermos are better.

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10 hours ago, Powerball said:

After a high of 86*F today, DFW could see its first 90*F+ day of the year tomorrow.

The trees are exploding with leaves & buds too.

Not that it's unusual but even a couple days ago I noticed that Dallas proper was definitely coming to life whereas Ft Worth and Denton were still well behind.  Spring seemed a bit late out there.

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