From Yesterday (April 30):

Radar Image #1: EF3 (140 mph)
Radar Image #2: EF1 (110 mph)

Weak couplets don't mean weak tornadoes, and intense couplets don't mean intense tornadoes. It completely depends on the storm environment and location of tornado (populated or rural area)!

Details Regarding the Westmoreland, KS Tornado:

- Rating: EF3 (140 mph)
- Path Length: 2.6 mi
- Path Width: 100 yds
- Injuries/Fatalities: 3/1
- First EF3+ tornado in Pottawatomie County since 2008 (Manhattan EF4)
- First E(F3) tornado in Pottawatomie County since 1978

Classic sea-breeze shenanigans in Florida.

NWS Miami funnel in Ave, Maria #flwx

Tornado in the canyons 6N of Turkey TX 5:42PM has since dissipated NWS Amarillo

Updated 'Top 10 VROTS of 2024' sheet:

Yesterday, April 30th, a powerful supercell spawned an EF1* tornado east of Hollister, Oklahoma. With consultation with a radar expert, who manually dealiased the originally over-valued couplet, this tornado had a VROT of 124.5 kts! New #1.

An EF3 Tornado struck Westmoreland Tuesday night with winds of 140 mph. This tornado injured 3 and killed one person. #kswx

Not a bad way to start my first chase of 2024. West of Clarendon, TX #txwx

Pretty tornado ongoing WSW of Clarendon, Texas.

Apr 30 tornado update:
The survey team says high end EF1 is the worst damage they can find for the tornado NE of Hollister in Tillman County. #okwx

Found a new photo of the Hollister, OK tornado last night. This was such a scary tornado. #okwx

Are there any chasers who could get out and check on the well-being of this farmstead off N2360 Road north of Loveland, Oklahoma? Located at 34.372217, -98.766221. The fact that the couplet constricted and stalled over this location has me considerably worried. #OKwx #WxTwitter

Reran my calcs with better geometry assumptions (smaller diameter, thicker, calculated out weight of cover via cast iron density, etc.)

New result is 171 mph using Bernoulli’s.

A recap from last night:

A powerful supercell east of Frederick, OK produced a likely intense/violent (EF3+), wedge tornado east of Hollister, with a preliminary VROT possibly in the top 5 highest recorded. Aside from this, likely the strongest anticyclonic tornado in decades!

Anyone heading to SW OK today to get photos/videos of the damage? I’m curious what that monster did last night. Seemed to have passed over trees and possibly two farmsteads.

Please stop using Gate to Gate or delta-v to represent the intensity of tornado circulations.

1. This is outdated. Nearly all peer reviewed research in the past 10+ years uses vRot.

2. It does not have to be gate-to-gate.

3. You are perpetuating the tornado rating questioning

#okwx Here are my photo from my impromptu storm chase tonight in SW OK the 1st 2 photos were taken at 9:32pm and the 2nd 2 were at 9:53pm. I was between Hollister and Loveland Looking north at the rotation. NWS Norman Reed Timmer, PhD #tornado

WEDGE TORNADO NEAR HOLLISTER, OK #okwx