1900hurricane

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About 1900hurricane

  • Rank
    Luckless Stormchaser

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KCLL
  • Gender
    Male
  • Location:
    College Station, TX

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  1. It's not so much the CAPE values themselves as it is how tall the CAPE profile is. It extends past 100 mb and off the top of the SHARPpy skew-T. The output on the far right of the same table that displays the CAPE and other values shows the parcel should finally stop rising almost 18 km up! Lifting a saturated parcel that high releases a huge amount of latent heat.
  2. Eyewall replacement has completed, but ENE shear is beginning to make itself known. Recent microwave imagery shows it eating away at the structure on the eastern side. When viewing water vapor imagery, the thunderstorm anvils to the east of Amphan clearly show the shear vector. The shear direction may become slightly more favorable as guidance shows it gaining a more southerly component as Amphan moves north, but that should be canceled out by the increasing magnitude over the same time frame. My expectation is that Amphan will be weakening from here on out.
  3. Eyewall replacement is now under way, and some of the first signs are beginning to show up on IR. Amphan is still just an absolute convective mauler though. A nearby sounding from the Nicobar Islands has the EL above 100 mb.
  4. Here's a visible loop of Vongfong about to make landfall.
  5. Vongfong has managed to intensify into a compact category 3 typhoon. Earlier forecasts had it passing just north of Samar, but I don't think it's going to avoid the island at this point. Between it and some of the solutions for 91B, it appears the NHEM tropics are beginning to wake up for the season.
  6. Critical angles are expected to be absurdly large (approaching a full 180º) which may keep the tornado threat fairly low even with a discrete cell since there won't be much streamwise vorticity to ingest. Give the instability/shear combo, especially as the low level jet ramps up around sunset, the damaging wind threat does look very real.
  7. Looks like a tor again on KPOE radar just based on how low the beam is (~600 ft).
  8. I wonder if it’s starting to collapse now. Not much rotation anymore. There’s a big spike in reflectivity, which would suggest the opposite, but maybe some of the hail that has been suspended in the updraft is starting to fall out all at the same time as the updraft weakens. Not sure, just speculating. EDIT: really doesn't look that way now...
  9. Clear debris ball on both CC and reflectivity now.
  10. KPOE has been having issues with clear air velocity returns near this storm. I even flipped over to KLCH because of it.