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Group splits into 2 groups of 2. Were going to have one group be Medford and the other Eureka, however in the time it is taking to compose this, Eureka looks pretty poor. So both will be Medford. We’ll ride this for as long as we can with such a rare opportunity to see svr in this area.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
Setting the floater domain to N. CA/S. OR. Main domain for OUN will still be able to capture the stuff in SJT/LUB. Still good storms in SJT/LUB and several warnings have been issued by EKA in N. CA. Dinner break until 5:30, then will do IOP for EKA and/or SJT/LUB.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
LMA discussion: Pete noticed that even though VIL was decreasing on a particular storm near KDOX, LMA showed a steady increase and in general his thought was that the storm was intensifying overall and worthy of a warning. He liked the LMA trend graphs.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
All forecasters are checking out PHI/LWX CWA’s LMA data in realtime. Storms in the blue box have had a marginal threat of severe winds. Keeping an eye on Medford’s CWA and the quasi-supecellular storms in the LUB CWA. May make a switch around 430 PM or after dinner.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
There are numerous possibilities inside the SPC slight risk area.
There are 4 potential targets for a late afternoon/early evening IOP.
2:00-3:00 PM LMA training
3:00-4:00 PM LMA IOP in the Sterling, VA CWA inside current SVR watch
4:00-??? PM TBD: We’ll need to pick an IOP target early and monitor for any potential changes, especially for PAR/CASA operations.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
Pete was working the MR/MS data set for a hail and wind event along a front in Nebraska.
He issued several warnings after looking at the environment, AWIPS all-tilts, AzShear, MESH. He mentioned that all of the products were basically pointing at large hail — it didn’t matter so much in this case which product you looked at because they all gave the same guidance. He would be very interested in seeing how the MR/MS products perform on marginal events, or widespread events (more than just a couple of storms) that are more difficult warning decision-making challenges.
Pete has also observed in the past that most of the proxies for hail that are used operationally (and this could be extended to MESH as well) tend to underestimate hail size when the storm-relative flow is relativeley weak (15 kts, or no meso) and storms are vertically stacked due to no separation of hydrometeors.
Travis Smith (Multi-Radar/Multi-Sensor PI)
Pete worked entire IOP on storms over Northern Kansas/Southern Nebraska. This was mainly a hail event with lots of quarters and a few golfballs in storms which were propagating swwd. Mesh and traditional data sets were consistant. Some of the trend products were useful.
Bill and Veronica worked marginal storms in CASA network. Some hail but not much wind. Followed this with the CASA Archive wind event. This group didn’t have D2D and was somewhat hampered with WDSSII display efforts. Looking forward to live events tomorrow, hopefully for all 3 OK network sensors (CASA, PAR, LMA).
-30-
Liz Quoetone (EWP Weekly Coordinator, 1-5 June 2009)
Winding down. CASA group done with wind event. Storms continue nrn Ks to build/develop westward producing hail up to quarters and wind. Some of the best rotation signatures of the night but also sampling higher up.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
Storms continue to fire along western end of the line in Nrn Ks (Phillips county). Mesh values some of the best so far tonight. Shave making calls on the storm.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
CASA team has warned their marginal storms into the ground. Storms are in the process of dying as them move into central ok. With Don here, we’ve decided to let them do a short CASA archive case to round out the remaining hour or so of the operations night. Pete still working a couple storms storms backbuilding across Hastings area. Vortex has gone home for the night which gave us hope that storms would intensify.
Liz Quoetone and Paul Schlatter (EWP Weekly Coordinators, 1-5 June 2009)
