Our BOU team remained in their CWA and mainly tracked what will likely be called the “Denver Metro Area Supercell of May 21, 2014″ for years to come (this title may need to be shortened…) All GOES-R, several LAPS 3D analysis products (from the 200×200 domain), MR/MS, and Super-Rapid Scan imagery were utilized in performing mesoscale and nowcasting analyses as well as warning issuance. Preliminary reports are coming in on the spatial extent of the main rain-wrapped tornado produced by this storm around 2000z.
0.5 reflectivity from KFTG on May 21, 2014.
Our IND team faced another training sequence of convective cells that came out of the northwest into the CWA. Numerous severe hail and wind reports through the central/southern parts of the CWA. The LAPS 800×800 domain was situated over this area of complex convection, providing 2D analyses and forecasts that our participants compared to MR/MS and other observational products.
Feedback (BL)
Simulated Satellite Imagery
- Indy cwa, it was pretty good with where storms would pop timing wise. Timing a bit off.
- Boulder – convection and cells in correct spots, timing a bit off. 30 min to an hour fast.
NearCast
- Lots of blank spots. It would be nice to blend nwp model data
- An on off toggle with model data might be neat
- Boulder – pw difference with evolution of storm. With discrete cell,m there was a narrow tounge of moisture feeding. A wall of moisture was moving into area. As wall moved in, storms formed along the boundary. I could have got change from discrete to cell.
- A little difficult to use today due to missing data from cloud cover.
GOES-R CI
- It did alright.
- In INDy One cell in particular, ci showed 90%, convection fired about hour later, it was hard to tell if convection was actually associated with it.
- In Denver it did quite well with main Denver cell it had >70%
- GOES west not doing as well as east
Prob Severe
- Did well in high plains
- In the diminishing phases is was useful in keeping me from warning on a couple storms
- Lots of pink in Indiana (>85). Many of these storms produced severe.
- I warned one based on an upward trend, then it died, lots of storms were doing this
OTD
- In NE Colorado later, the Colorado storm weaked, but still had great OTs, so still intense rainfall. Even though storm isn’t severe, updrafts could still be strong enough to produce heavy rain
- In texas, it showed up nicely, it made me focus on it, hled it for 4 or 5 scans, then it fizzled and the storm weaked.
- Perfect for overnight convection
PGLM
- Impressed, by overlaying the different products, I issused a warning off of it, it hit a sigma of 3 and I pulled the trigger. Inch hail a few minutes later.
- Flash extent and initiation. Max did not work. I thought it was great. Watching a storm merger in Lubbock. Initiation density really lit up on front end of merger. A few minutes later extent density lit up as well.
- CG’s do not tell the whole picture at all, so the total lightning was helpful
- Provided lead time over radar.
LJ
- The larger scale one would sometimes try to combine cells. So I would go to smaller one and it would be better at identifying the individual cells
- I did get the bit towards the end of day when it was nice
SRSOR
- It helped me in radar down experiment. It helped to identify boundary that was feeding into storm. It would have taken a little longer to piece in my mind what was going on in the 15 minute scan mode.
-Darrel Kingfield
EWP Week 3 Coordinator
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