Started a MR/MS IOP a short while ago, focus on the Lubbock CWA.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

MAF started issuing TORs at 7:35pm (CDT).  EWP started at 8:35 CDT.

First take-away – the MESH and ROT tracks giving a better handle on the storm motion, and thus the EWP warning polygons were more to the rifght than the MAF polygons.

For SVR – went from holfball hail to baseball hail, influenced the MESH and the H50_above_H253 (went from 16 to 20 kft).  Ref -20 up to 61 dBZ.

Felt that these products were useful over alltilts – so they looked at WDSSII products more, versus the confort zone of the all tilts analysis.

There were notificaiton issues that affected our SA this evening.  Also, at first, the warnings were not being transmitted – we fixed that later for our MAF exercise.  We didn’t archive any of the ABQ warnings.

Will post images soon…

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Issued TOR on storm in Eddy County NM.  Based on rotation really ramping up.  WDSSII was not corroborating it, but base KMAF data was showing strong LL shear, continiuty.

Turns out the 3-6 km 120min rotation track showed an increase.  But the 0-2 shear (what they were looking at) showed decreasing trend.  TORpedoed it nonetheless.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Did some analysis of the azimuthal shear, but decided to hold off on TOR.  Considering updating their SVR as the storm is right turning some more and the hail numbers are staying up.

SVR was sent to replace original polygon.  Original polygon might have covered it, but it was more right-turning.  MESH track, right turn in MESH track.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Issuing SVR on Eddy storm now.  Strong mid-altitude rotationat 14 kft.  Over 60 dBZ @ -20degC.  16 kft H50_above_H253.  MESH > 1.5″  MESH history for continuity.  MR helped refine the warning.  Helped to contruct polygon.  MESH track revealed the right turn, and polygon was adjusted for that.  Spotter report alone might have messed up track.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

We’ve switched locaization from ABQ to MAF, as our Chaves County storm croaked.  New storm in Eddy county is being worked for warnings.  Spotter report 1″ hail 5 N Whites City.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Issuing an SVS now based on M1.25″ hail report 15 N ROW.

It appears that our first warning did not get transmitted to the px1 server.  We’re looking into it.  We’re also expecting bugs – it’s our first time doing this!

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Our first live blog entry…

Our forecasters are currently getting familiar with the multi-radar/sensor products on an isolated supercell which is to the SW of the Cannon AFB radar site, east of Roswell.

Storm has developed a nice TBSS.  MESH tracks also trending upwards again, above 1″.  Sue and Steve are issuing our first experimental SVR warning.

Greg Stumpf (EWP Weekly Coordinator, 27 Apr – 1 May 2009)

Storms now moving into western CASA range. Having some data quality issues however. Other storms better sampled by PAR with some circulations apparant. 16 minutes left in IOP. Arrgh!

Liz Quoetone (EWP Weekly Coordinator, 2-6 June)

Will go live PAR to 9pm tonight with data finally getting close in PAR and just nudging into CASA. Chris and Milovan doing PAR/KTLX comparisons. Groups have conceded to high wind threat everywhere along line and are now looking for anything different than that.

Plan for tomorrow is to spend 1st hour reviewing a few minutes of both PAR and CASA as they finally get well sampled (later this evening). Group has worked this event much of the afternoon/evening and payoff is not coming til after they leave.

Liz Quoetone (EWP Weekly Coordinator, 2-6 June)