Jump to content

hlcater

Members
  • Posts

    2,480
  • Joined

  • Last visited

1 Follower

About hlcater

Profile Information

  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KVTI
  • Location:
    Hiawatha/Iowa City

Recent Profile Visitors

7,796 profile views
  1. It's looking up for us over the next 10 days or so. System traversing the country Wed-Fri should yield tstm and perhaps severe wx opportunities.
  2. They haven’t even started here. One of the later years I can remember.
  3. Oh wow I just realized I posted in the wrong thread. Oh well
  4. Y'all had to know it was coming, I just hadn't gotten time to type it up since I've been super busy and for all intents and purposes did not have time to go to NW IA tuesday but I did anyways because the setup was gas. Targeted Sac City area primarily due to the presence of an area of enhanced moisture convergence giving me high confidence the area near Denison would convect. This strategy was spot on. For awhile, the storms really struggled with fast motions and being whisked away north of the front and it took multiple updrafts before one finally got established on the boundary. I suspect there was still quite a bit of surface stability here, as inflow temps ranged from 66-70 depending on where I was, but inflow was impressively strong at 60+mph immediately prior to the tornado, and at multiple points afterward. I suspect the very strong (and more importantly spatially large) mesocyclone and impressive hodographs helped compensate for this surface stability and enabled the Palmer tornado to develop. Due to incredible fortuitous circumstances, the stage of the tornado which were brilliantly captured by Jim Tang (and others) occurred behind trees. However, impressive views were still to be had of later stages of the tornado lifecycle. The storm filled in with rain after this and I didn't see any of the subsequent tornadoes. Although I very nearly drove into one near Gilmore City and was caught in the rear inflow jet and, cognizant about what may lay ahead shrouded in rain, I pulled off the road and waited in winds which were likely exceeding 90mph and inflicted heavy damage to neighboring trees. Up ahead, a farmstead had a destroyed outbuilding and substantial tree damage, which was deemed to be caused by an EF1 tornado. The storm could never shake mergers from the rear either, and I called the chase at 7:30pm
  5. Iowa's setup tomorrow looks primed. Moisture is currently overperforming HRRR progs, zero morning convection concerns, vectors off the boundary are 90 degrees, massive hodographs with large 0-3km curvature will support supercells, 2500-3000 MLCAPE will ensure updrafts are robust... There really isn't anything that's missing. I was previously not super confident moisture would reach the triple point with sufficient quality, but obs tonight are suggesting that will not be an issue. Therefore, the only thing that remains that could disrupt or otherwise attenuate the setup is if the core of the lift is either slow and doesnt overspread the warm sector before dark or delivers a glancing blow such that storms that do initiate are too far NW and are elevated. Would probably be introducing a 15H at 06z for NW IA.
  6. College Station sounding does have about 1000 MLCAPE and a gigantic hodograph.
  7. Strongest tornado I've seen so far. Bummed I wasn't in front of it while it was still visible near winterset but oh well.
  8. I figured I should immortalize it for you
  9. Yesterday was hard. Storms were moving 45-50mph at a 45 degree angle to the grid, so keeping up was exceptionally challenging. Needless to say, I didn't really have time to take many good pictures, and the tornadoes I saw weren't especially photogenic from my vantage points anyway. I traded pictures for keeping up and only stopped 2-3 times the entire chase. Despite the few good pictures, I absolutely cannot complain about seeing tornadoes and a great cyclic supercell on March 5th, in Iowa. The first tornado was near corning which I have zero pictures of as it lasted 30-40 seconds and I was driving. The second tornado lasted about 2 minutes and was near Creston. It had a much more pronounced debris cloud before I was able to get a picture. The 3rd tornado was a rain wrapped wedge that tracked from Winterset to Newton and produced EF2-3 damage near winterset from what I could tell. This was near colfax, and the tornado had shrunk markedly to a cone here. And finally, the 4th tornado was an amorphous bowl near Kellogg. It had multiple subvortices beneath it and seemed pretty weak. Immediately prior to the winterset tornado. Storm was a very high contrast sculpted beauty.
×
×
  • Create New...