Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 Classic hook on HGX. Can't upload image because file size is too big. Took its time didn't it? Looked like it was fizzling for awhile, interacted with another upshear storm, developed new low level rotational foci. Keep your eye on the CC panel. Link to comment Share on other sites More sharing options...
Calderon Posted April 19, 2020 Share Posted April 19, 2020 Funnel cloud reported west of West Columbia, TX. Link to comment Share on other sites More sharing options...
jojo762 Posted April 19, 2020 Share Posted April 19, 2020 Despite the classic reflectivity presentation, velocity signatures are pretty unimpressive -- especially with the cell only being <40 miles from HGX and at a beam height of ~2.7KFT. Link to comment Share on other sites More sharing options...
the ghost of leroy Posted April 19, 2020 Share Posted April 19, 2020 6 minutes ago, Moderately Unstable said: Classic hook on HGX. Can't upload image because file size is too big. Took its time didn't it? Looked like it was fizzling for awhile, interacted with another upshear storm, developed new low level rotational foci. Keep your eye on the CC panel. All hook no cattle Link to comment Share on other sites More sharing options...
Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 Just now, the ghost of leroy said: All hook no cattle It is confirmed on the ground now. Link to comment Share on other sites More sharing options...
Indystorm Posted April 19, 2020 Share Posted April 19, 2020 Winds are backed se at Galveston 77/73 Link to comment Share on other sites More sharing options...
vortmax Posted April 19, 2020 Share Posted April 19, 2020 12 minutes ago, cheese007 said: D2 enhanced up for the Carolinas. Looks like another multi-day event Think this is only because of QLCS line coming through Monday AM. Link to comment Share on other sites More sharing options...
janetjanet998 Posted April 19, 2020 Share Posted April 19, 2020 SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 210 PM CDT SUN APR 19 2020 TXC039-191930- /O.CON.KHGX.TO.W.0007.000000T0000Z-200419T1930Z/ BRAZORIA TX- 210 PM CDT SUN APR 19 2020 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR WEST CENTRAL BRAZORIA COUNTY... AT 209 PM CDT, SPOTTERS REPORTED A CONFIRMED TORNADO LOCATED WEST OF WEST COLUMBIA, MOVING EAST AT 30 MPH. HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL. SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. Link to comment Share on other sites More sharing options...
cheese007 Posted April 19, 2020 Share Posted April 19, 2020 Mesoscale Discussion 0407 NWS Storm Prediction Center Norman OK 0203 PM CDT Sun Apr 19 2020 Areas affected...southeast TX...southern and central LA Concerning...Severe potential...Tornado Watch likely Valid 191903Z - 192000Z Probability of Watch Issuance...95 percent SUMMARY...A new tornado watch will likely be needed before the expiration of tornado watch #120 at 3pm CDT for much of central and southern LA. A local extension-in-time can be utilized for the area near Galveston Bay for existing tornado watch #120. DISCUSSION...The risk for severe thunderstorms will likely continue over the Sabine River Valley through the afternoon. The airmass has destabilized over southern LA according to the 18z Lake Charles sounding. A notable weakness in the flow, evident around 600mb, will likely lessen with time as the mid-level shortwave trough over the southern Great Plains continues to approach the northwest Gulf Coast. Additional storm activity is expected over LA later this afternoon with hail/wind the expected hazards with the stronger storms. The more intense/persistent low-level mesocyclones will be associated with a conditional risk for tornadoes. The 17z RAP forecast soundings indicate the most favorable combination of enlarged hodographs and instability will focus during the late afternoon through the early evening. ..Smith/Hart.. 04/19/2020 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...JAN...LIX...LCH...SHV... LAT...LON 30819446 31229415 31999306 32229206 31309205 30969170 30959070 29369118 29629379 30089429 30819446 1 Link to comment Share on other sites More sharing options...
CryHavoc Posted April 19, 2020 Share Posted April 19, 2020 TOG for Texas near west columbia. Link to comment Share on other sites More sharing options...
magpiemaniac Posted April 19, 2020 Share Posted April 19, 2020 HGX tornado possibly over a Phillips refinery at the moment. Link to comment Share on other sites More sharing options...
SouthernNJ Posted April 19, 2020 Share Posted April 19, 2020 Houston Hobby TDWR showing occasional circulation flare-ups in West Columbia hinting that a tornado is occurring based upon what is being reported. Link to comment Share on other sites More sharing options...
Chinook Posted April 19, 2020 Share Posted April 19, 2020 I am seeing a tornado report at 1 WNW of West Columbia Link to comment Share on other sites More sharing options...
1900hurricane Posted April 19, 2020 Share Posted April 19, 2020 1 Link to comment Share on other sites More sharing options...
Sydney Claridge Posted April 19, 2020 Share Posted April 19, 2020 As for those cells northwest of Hattiesburg, the one east of New Hebron is probably the one to watch, being by itself and all. I definitely do not want to see those smaller cells over Bassfield and Sumrall go severe, given that they are on track to affect areas hit hard by last Sunday's tornadoes (including Soso). Also keep an eye on that supercell south of Forest, MS. It has a prominent hook but seems to lack strong rotation at this time. 1 Link to comment Share on other sites More sharing options...
mob1 Posted April 19, 2020 Share Posted April 19, 2020 Weak TDS on the tornado warned storm in LA. Edit; much more defined now, likely a TOG there. Link to comment Share on other sites More sharing options...
1900hurricane Posted April 19, 2020 Share Posted April 19, 2020 Latest radar-derived hodograph from HGX when factoring in surface observations and storm motion. Link to comment Share on other sites More sharing options...
Radtechwxman Posted April 19, 2020 Share Posted April 19, 2020 TDS now on that cell now in central LA Link to comment Share on other sites More sharing options...
geddyweather Posted April 19, 2020 Share Posted April 19, 2020 The lead supercell along the WF in MS dropped what appears to be a trailing OFB, moving SE toward the free storms. Curious to see what the result of this interaction will be... Link to comment Share on other sites More sharing options...
Santa Clause Posted April 19, 2020 Share Posted April 19, 2020 Definite tds in LA. 1 Link to comment Share on other sites More sharing options...
Bob's Burgers Posted April 19, 2020 Author Share Posted April 19, 2020 Just now, StormChaser4Life said: TDS now on that cell now in central LA Sure looks like it. Touched down about 8 minutes ago and probably tore up a ton of trees. 1 Link to comment Share on other sites More sharing options...
JasonOH Posted April 19, 2020 Share Posted April 19, 2020 TDS very evident on the LA cell. Link to comment Share on other sites More sharing options...
Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 4 minutes ago, jojo762 said: Despite the classic reflectivity presentation, velocity signatures are pretty unimpressive -- especially with the cell only being <40 miles from HGX and at a beam height of ~2.7KFT. Jojo, I agree with you, though I lack a crystal ball, ef2+, this ain't/was not striking me as, right now. But there are a few reasons for weak-ish low level radar returns. It's been several years since I took meso and went a different direction since then, so, ya know, I'm rusty, but.. when you have a super classic hook like that, you can get a spin up or two. WSR88ds are great but not infallable. Just like model analysis, and idk why I'm telling you this since you know it better than me, you look at all the data. What's holding it back right now appears to be a lack of singular focus for low level rotation. I'm personally more interested in the development of a meso closer in on the flanking line, not the one that produced the spin up..if something sig were to occur. Environment is there. Again imma preface that by saying I probably don't know what I'm talking about. But I think it'll produce again, and I think nws does too bc they extended the warning. Link to comment Share on other sites More sharing options...
Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 2 minutes ago, JasonOH said: TDS very evident on the LA cell. Oof. Link to comment Share on other sites More sharing options...
Radtechwxman Posted April 19, 2020 Share Posted April 19, 2020 2 minutes ago, JasonOH said: TDS very evident on the LA cell. Weird how strong the TDS looks given the weak couplet present Link to comment Share on other sites More sharing options...
Calderon Posted April 19, 2020 Share Posted April 19, 2020 Meanwhile off the LA/MS coast, an interesting SMW. Quote Special Marine Warning National Weather Service New Orleans LA 210 PM CDT Sun Apr 19 2020 The National Weather Service in New Orleans has issued a * Special Marine Warning for... Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm... Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm... Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM... * Until 345 PM CDT. * At 209 PM CDT, a wind bore front was located 50 nm east of Pilottown, moving northeast at 50 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Buoy. 1 Link to comment Share on other sites More sharing options...
Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 7 minutes ago, StormChaser4Life said: Weird how strong the TDS looks given the weak couplet present I'm almost wondering if that isn't a tds actually, or, if it was, wasn't indicative of the size. Could it be straight line winds, some ground based phenomenon, flowering trees all blown up by a small spin up creating unusually strong returns. Link to comment Share on other sites More sharing options...
Bob's Burgers Posted April 19, 2020 Author Share Posted April 19, 2020 Just now, Moderately Unstable said: I'm almost wondering if that isn't a tds actually. I think the tornado may have been very short lived, but the debris was on the way up and spread out after it lifted. Vrot was around 36 knots for a few scans in a fairly tight circulation. 2 Link to comment Share on other sites More sharing options...
JasonOH Posted April 19, 2020 Share Posted April 19, 2020 I'm betting it lofted a bunch of leaves. Plenty of trees in that area and leaves are super easy to lift high. 2 Link to comment Share on other sites More sharing options...
Moderately Unstable Posted April 19, 2020 Share Posted April 19, 2020 12 minutes ago, Bob's Burgers said: I think the tornado may have been very short lived, but the debris was on the way up and spread out after it lifted. Vrot was around 36 knots for a few scans in a fairly tight circulation. 11 minutes ago, JasonOH said: I'm betting it lofted a bunch of leaves. Plenty of trees in that area and leaves are super easy to lift high. Ok, yeah that makes the most sense actually, especially if the trees recently leafed and some still have flowers etc. Thanks guys 1 Link to comment Share on other sites More sharing options...
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