Jump to content
  • Member Statistics

    17,603
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Severe Weather 4-19-23 through 4-21-23


cheese007
 Share

Recommended Posts

Today was mostly a cap bust, aside from a couple storms near the Kansas/Nebraska border. 

Wednesday is a complex setup. That’s an understatement. Upper level troughing across  the Rockies with several disturbances impinging on the central Plains during the second half of the day. Models are having issues with low pressure placement tomorrow, which will be rather important. 

In typical 2023 fashion, the NAM and HRRR are on opposite extreme ends of the spectrum. NAM is juiced and shows May-like moisture in central Kansas. The HRRR wildly mixes out. The truth will likely be in the middle. If moisture leans toward the more robust progs, you’d expect the triple point(s) to be the main focus for convective initiation. The southern Plains dryline may stay capped again, although moisture quality for Wednesday will be at least somewhat better than it was today.

CAMs were much more aggressive last night into the 12z suite today. Most recent 00z CAMs are subdued with capping winning out, until near or after 00z Thursday.

I’m not even going to pretend I have a confident forecast on this one. Going to sleep on it and see how observational trends look in the morning. 

  • Thanks 1
Link to comment
Share on other sites

Uh oh 

Severe Weather Statement
National Weather Service Norman OK
945 PM CDT Wed Apr 19 2023

OKC125-200315-
/O.CON.KOUN.TO.W.0048.000000T0000Z-230420T0315Z/
Pottawatomie OK-
945 PM CDT Wed Apr 19 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTH
CENTRAL POTTAWATOMIE COUNTY...

At 945 PM CDT, a confirmed large and extremely dangerous tornado was
located near Tecumseh, moving east at 25 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may
         be deadly to those caught without shelter. Mobile homes
         will be destroyed. Considerable damage to homes,
         businesses, and vehicles is likely and complete destruction
         is possible.

Locations impacted include...
Shawnee, Tecumseh, Earlsboro, and Bethel Acres.

This includes Interstate 40 between mile markers 191 and 194.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, an extremely dangerous and potentially deadly tornado is
on the ground. To protect your life, TAKE COVER NOW! Move to a storm
shelter, safe room, or an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3524 9700 3532 9703 3536 9696 3540 9678
      3524 9678
TIME...MOT...LOC 0245Z 255DEG 23KT 3529 9697

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...1.75 IN
 
Link to comment
Share on other sites

This storm's entire life has been filled with weirdness, mesocyclonically speaking. The cell splitting in two and then having the two mesos dance the Fujiwara before actually recombining back to a single cell is just par for the course, and also totally insane. Watched the whole development on radar from far far away, unfortunately... But what a storm - simply amazing evolution.

 

  • Like 1
Link to comment
Share on other sites

42 minutes ago, ct_yankee said:

This storm's entire life has been filled with weirdness, mesocyclonically speaking. The cell splitting in two and then having the two mesos dance the Fujiwara before actually recombining back to a single cell is just par for the course, and also totally insane. Watched the whole development on radar from far far away, unfortunately... But what a storm - simply amazing evolution.

 

It's like Grand Island's Night of the Twisters for central Oklahoma.

Link to comment
Share on other sites

Well today was quite the day to say the least. First photo is the monstrous supercell and large tornado near Cole OK in the bottom right. This was, hands down, the best storm structure I've ever seen.

DSC_0142.thumb.JPG.139025c0355f86abfb2d3e13994e53fd.JPG

At dusk prior to producing the Etowah OK tornado. More phenomenal structure.

DSC_0213.thumb.JPG.36250f3b0d8da54a1acb56741023b9cc.JPG

  • Like 13
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...