I wanted to start this thread to ask a couple of questions on rain wrapped tornadoes. I was out chasing yesterday in Kansas and finally made it around to the front of the monster cell that was producing the rain wrapped wedge. I came east down I70 to Lawrence, dropping south on Hwy 59 with anxious excitement of finally getting a view of what I hoped would be a big tornado and instead all I could see was....rain. I ended up stopping at Hwy 460 just south of Pleasant Grove and then continued to follow it to the east/northeast all the way to Bonner Springs, but never got a view of the tornado. Looking at the radar/velocity couplet, I was worried it would be rain wrapped, but sometimes you get surprised. There's nothing more disappointing on a chase than not being able to see the tornado that is actually there but obscured by precip!
That being said, I was a bit surprised it was rain wrapped, especially seeing some of the other visible tornadoes from other parts of Kansas. What set of factors will usually make a tornado rain wrapped? Is there a definite reason on why yesterday's tornado was rain wrapped? Do you guys ever look at forecast soundings and think for sure the tornadoes are going to be rain wrapped? I always think of upper level venting of the storm and will usually look at those wind speeds to get an idea. I remember reading yesterday at 500mb the winds were supposed to be 60-70 knots which is great, but didn't see what they were up higher. If there are strong winds at the mid and upper levels, but the winds are at the same speed or maybe even decrease a tiny bit as you go up in the atmosphere(i.e. 60 knots to 50 knots) will that cause potential issues with HP/rain wrapped tornadoes? I know the air was juicy with low 70's dews and the spread between T/Td was pretty low, so low LCL's as well. Could that be a part of the cause?
Sorry for all the random thoughts and questions. Just wanting to get an idea of people's thoughts on this subject. Thanks in advance!
That being said, I was a bit surprised it was rain wrapped, especially seeing some of the other visible tornadoes from other parts of Kansas. What set of factors will usually make a tornado rain wrapped? Is there a definite reason on why yesterday's tornado was rain wrapped? Do you guys ever look at forecast soundings and think for sure the tornadoes are going to be rain wrapped? I always think of upper level venting of the storm and will usually look at those wind speeds to get an idea. I remember reading yesterday at 500mb the winds were supposed to be 60-70 knots which is great, but didn't see what they were up higher. If there are strong winds at the mid and upper levels, but the winds are at the same speed or maybe even decrease a tiny bit as you go up in the atmosphere(i.e. 60 knots to 50 knots) will that cause potential issues with HP/rain wrapped tornadoes? I know the air was juicy with low 70's dews and the spread between T/Td was pretty low, so low LCL's as well. Could that be a part of the cause?
Sorry for all the random thoughts and questions. Just wanting to get an idea of people's thoughts on this subject. Thanks in advance!