janetjanet998 Posted April 13, 2018 Share Posted April 13, 2018 CAPE still 1500-2000 or so over AR low level shear really increasing. HEL values now 300-450 in the 1km level and up to 550 in 3KM deep level shear now 60 kts Link to comment Share on other sites More sharing options...
Indystorm Posted April 13, 2018 Share Posted April 13, 2018 Storms are now developing and intensifying se of Shreveport and moving n/ne. I am assuming this is because of the LLJ. New tor watch issued for much of southern Missouri. Link to comment Share on other sites More sharing options...
andyhb Posted April 13, 2018 Share Posted April 13, 2018 Large tornado near Mountainburg, AR from a bit earlier. Link to comment Share on other sites More sharing options...
janetjanet998 Posted April 13, 2018 Share Posted April 13, 2018 FT Smith storm Now TOR warned also TOR warning near Bull shoals lake area south of Branson and another in NE Texas now Link to comment Share on other sites More sharing options...
janetjanet998 Posted April 13, 2018 Share Posted April 13, 2018 8 minutes ago, janetjanet998 said: FT Smith storm Now TOR warned a 56 PM CDT FRI APR 13 2018 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR FRANKLIN COUNTY... AT 555 PM CDT, A CONFIRMED TORNADO WAS LOCATED 7 MILES SOUTH OF MULBERRY, MOVING NORTHEAST AT 45 MPH. HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. SOURCE...RADAR CONFIRMED TORNADO. Link to comment Share on other sites More sharing options...
snowlover2 Posted April 13, 2018 Share Posted April 13, 2018 New tornado warning west of Texarkana. Link to comment Share on other sites More sharing options...
mob1 Posted April 13, 2018 Share Posted April 13, 2018 Pretty tight rotation between De Kalb TX and Foreman AR. Link to comment Share on other sites More sharing options...
Buckeye05 Posted April 13, 2018 Share Posted April 13, 2018 Yeah that Forman cell has the cleanest looking velocity couplet I’ve seen today. Probably a TOG. Link to comment Share on other sites More sharing options...
andyhb Posted April 13, 2018 Share Posted April 13, 2018 Supercell W of Mountain View, AR (think 2/5/08 territory) has a troubling look on reflectivity. Also very strong inflow. Link to comment Share on other sites More sharing options...
rolltide_130 Posted April 13, 2018 Share Posted April 13, 2018 Beginning to see the discrete supercells becoming dominant. Shear profiles kicking in as the sun starts to go down and the LLJ gets going. Link to comment Share on other sites More sharing options...
mob1 Posted April 13, 2018 Share Posted April 13, 2018 9 minutes ago, Buckeye05 said: Yeah that Forman cell has the cleanest looking velocity couplet I’ve seen today. Probably a TOG. Confirmed tornado on the warning now, looks extremely impressive. Link to comment Share on other sites More sharing options...
snowlover2 Posted April 13, 2018 Share Posted April 13, 2018 2 minutes ago, mob1 said: Confirmed tornado on the warning now, looks extremely impressive. Quote Severe Weather Statement National Weather Service Shreveport LA 611 PM CDT FRI APR 13 2018 ARC081-OKC089-132330- /O.CON.KSHV.TO.W.0054.000000T0000Z-180413T2330Z/ Little River AR-McCurtain OK- 611 PM CDT FRI APR 13 2018 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR WEST CENTRAL LITTLE RIVER AND SOUTHEASTERN MCCURTAIN COUNTIES... At 610 PM CDT, a confirmed tornado was located 7 miles southwest of Foreman, moving northeast at 35 mph. HAZARD...Damaging tornado and quarter size hail. SOURCE...Public confirmed tornado. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This tornado will be near... Foreman and Arkinda around 625 PM CDT Link to comment Share on other sites More sharing options...
CheeselandSkies Posted April 13, 2018 Share Posted April 13, 2018 Too bad it's in such a radar hole. Probably would be as or more impressive than the Mountainburg cell if it were a similar distance from a radar. Link to comment Share on other sites More sharing options...
janetjanet998 Posted April 13, 2018 Share Posted April 13, 2018 more cells maturing over North LA with couplets ..one now t-storm warned with TOR possible wording.. so now we have the main line back in OK/Tx...the supercells on the OK/AR border ..and now maybe more Sups in north LA I suspect until the main line catches up....the two lines of scattered Sups will continue to produce Possible Tornadoes Link to comment Share on other sites More sharing options...
mob1 Posted April 13, 2018 Share Posted April 13, 2018 3 minutes ago, janetjanet998 said: more cells maturing over North LA with couplets ..one now t-storm warned with TOR possible wording Went up rather quickly, definitely rotation on that cell now and also to its east. Edit; the one to the east is now Tornado Warned (this one probably isn't far behind) Link to comment Share on other sites More sharing options...
Indystorm Posted April 13, 2018 Share Posted April 13, 2018 6 minutes ago, janetjanet998 said: more cells maturing over North LA with couplets ..one now t-storm warned with TOR possible wording.. so now we have the main line back in OK/Tx...the supercells on the OK/AR border ..and now maybe more Sups in north LA I suspect until the main line catches up....the two lines of scattered Sups will continue I read somewhere (maybe SPC) to expect multiple lines in the moderate risk area this evening. Link to comment Share on other sites More sharing options...
mob1 Posted April 13, 2018 Share Posted April 13, 2018 Link to comment Share on other sites More sharing options...
janetjanet998 Posted April 13, 2018 Share Posted April 13, 2018 EVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 634 PM CDT FRI APR 13 2018 ARC081-133-140000- /O.CON.KSHV.TO.W.0056.000000T0000Z-180414T0000Z/ LITTLE RIVER AR-SEVIER AR- 634 PM CDT FRI APR 13 2018 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR NORTHWESTERN LITTLE RIVER AND CENTRAL SEVIER COUNTIES... AT 634 PM CDT, A CONFIRMED TORNADO WAS LOCATED OVER WINTHROP, OR NEAR HORATIO, MOVING NORTHEAST AT 45 MPH. Link to comment Share on other sites More sharing options...
David Reimer Posted April 13, 2018 Share Posted April 13, 2018 NOAA P3 confirms tornado in progress on the storm west of Monroe. The KULM radar in Monroe (academic radar) looking impressive. Link to comment Share on other sites More sharing options...
Indystorm Posted April 13, 2018 Share Posted April 13, 2018 BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 650 PM CDT FRI APR 13 2018 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN SEVIER COUNTY IN SOUTHWESTERN ARKANSAS... NORTHERN HOWARD COUNTY IN SOUTHWESTERN ARKANSAS... * UNTIL 730 PM CDT * AT 650 PM CDT, A CONFIRMED TORNADO WAS LOCATED NEAR LOCKESBURG, OR NEAR DE QUEEN, MOVING NORTHEAST AT 35 MPH. HAZARD...DAMAGING TORNADO. SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO ROOFS, WINDOWS, AND VEHICLES WILL OCCUR. TREE DAMAGE IS LIKELY. * THE TORNADO WILL BE NEAR... DIERKS AROUND 715 PM CDT. UMPIRE AROUND 725 PM CDT. ATHENS AROUND 730 PM CDT. Link to comment Share on other sites More sharing options...
andyhb Posted April 13, 2018 Share Posted April 13, 2018 Debris signature N of Clarksville, AR. Link to comment Share on other sites More sharing options...
MUWX Posted April 13, 2018 Share Posted April 13, 2018 Storms around Kansas City all look interesting Link to comment Share on other sites More sharing options...
Buckeye05 Posted April 13, 2018 Share Posted April 13, 2018 Cell near Georgetown, LA is about to go too. Link to comment Share on other sites More sharing options...
bjc0303 Posted April 13, 2018 Share Posted April 13, 2018 2 minutes ago, Buckeye05 said: Cell near Georgetown, LA is about to go too. Weak rotation, strong outbounds are a function of sidelobe contamination. Solid look, but most likely contaminated velocities. edit - next scan looks legit, and t-warned. Link to comment Share on other sites More sharing options...
jojo762 Posted April 13, 2018 Share Posted April 13, 2018 2 minutes ago, MUWX said: Storms around Kansas City all look interesting Supercell near Gardner has some rotation and a definitive hook/notch. On a beeline to go straight through the heart of the metro. Hopefully it doesn't organize any further. Link to comment Share on other sites More sharing options...
Buckeye05 Posted April 13, 2018 Share Posted April 13, 2018 2 minutes ago, bjc0303 said: Weak rotation, strong outbounds are a function of sidelobe contamination. Solid look, but most likely contaminated velocities. edit - next scan looks legit, and t-warned. Nice Link to comment Share on other sites More sharing options...
Chicago Storm Posted April 14, 2018 Share Posted April 14, 2018 Seeing the main QLCS take shape from C. Missouri down into C. Texas fairly quickly now.. Link to comment Share on other sites More sharing options...
jojo762 Posted April 14, 2018 Share Posted April 14, 2018 Mesoscale Discussion 0246 NWS Storm Prediction Center Norman OK 0706 PM CDT Fri Apr 13 2018 Areas affected...for portions of west-central AR Concerning...Tornado Watch 40... Valid 140006Z - 140030Z The severe weather threat for Tornado Watch 40 continues. SUMMARY...A significant tornado threat may increase and areas downstream from the Sevier County tornadic supercell ---including Montgomery and Yell counties--- are under an increasing tornado risk. DISCUSSION...A supercell with a history of tornadic activity over southwestern AR and northeast TX will continue to the northeast over the next 1-2 hours ahead of a north-northeast to south-southwest oriented band of thunderstorms. The mesoscale environment immediately on the inflow side of the supercell is characterized as very moist with surface dewpoints around 70 degrees F. Based on the wind profile from the Little Rock (LZK) VAD, around 450 m2/s2 0-1 km SRH is present---supportive of low-level mesocyclonegenesis and a tornado risk. Similar thermodynamic profiles were sampled by the 00Z SHV and LZK raobs (very moist through the troposphere with moderate buoyancy, 1600-1900 J/kg MLCAPE). Given the strong low-level shear and ample buoyancy, the tornado risk may continue to increase over the next 30 minutes to 1-2 hours before the supercell becomes embedded within the eastward-moving convective band from the west. ..Smith.. 04/14/2018 Link to comment Share on other sites More sharing options...
andyhb Posted April 14, 2018 Share Posted April 14, 2018 Reminds me a lot of what they did for the Vilonia storm back in 2014. Link to comment Share on other sites More sharing options...
rolltide_130 Posted April 14, 2018 Share Posted April 14, 2018 Just now, andyhb said: Reminds me a lot of what they did for the Vilonia storm back in 2014. Just minus the good radar coverage because apparently SW AR doesn't need a radar site. Link to comment Share on other sites More sharing options...
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