[Ncep.nhc.nco_contacts] TSB Morning Rounds - Sun Sep 04, 2016

Matthew Sardi - NOAA Federal matthew.sardi at noaa.gov
Sun Sep 4 17:06:35 UTC 2016

Hi All,

Just want to clarify, on HSU item #2: Dave Zelinsky and I identified the
Gempak code problem/solution together, and then I made the fix and
implemented. It was a team effort.



Matthew Sardi
NHC/Technology & Science Branch
305-229-4496 (Desk)
631-833-2965 (Cell)

On Sun, Sep 4, 2016 at 11:26 AM, TSB Admin <nhc.tsbadmin at noaa.gov> wrote:

> Here is today's summary of NHC computer operations:
> --- Craig Mattocks
> ----------
> *TAFB:*
> *HSU:*
> 1. Continued problems with the National TCV after canceling TS warnings
> (known software bug in AWIPS that causes the text formatter to fail). While
> assisting Hurricane Specialists in the preparation of the 03Z National TCV,
> TSB Developer Monica Bozeman tried to delete the old expired grids from all
> the SS grids. The product looked correct on the GFE map display (zones were
> no longer highlighted on the map), but the text product did not incorporate
> the cancellations from MD/VA zones 17-75. She transmitted it anyway to meet
> the product delivery deadline. Later, at 11 PM EDT, TSB AWIPS SysAdmin
> Chris Mello was able to successfully compose and transmit a National TCV
> that incorporated canceled watches/warnings.
> 2. The cone graphic for Intermediate Advisory 25A (2:00 PM Saturday, Sept.
> 3) incorrectly identifed Hermine as a Tropical Depression, instead of a
> Post-Tropical Cyclone (PTC). Apparently, this is the first time a PTC had
> occurred in an intermediate advisory. TSB Developer Matt Sardi discovered
> that the GEMPAK code reads the 2-character storm type from the TCM
> (Forecast Advisory) for regular advisories, but reads the storm type from
> the TCP (Public Advisory) for intermediate and special advisories.
> The Fortran source code (in nawips at nhc-lx-comp01:/nhc/
> nawips/7.3.0/gempak/source/cgemlib/gh) had been updated for special
> advisories (ghrdhd.f) to handle the Post-Tropical/PT type, but it seems the
> intermediate code (ghpuhd.f) was overlooked during the upgrade process.
> Matt fixed the text parsing code in ghpuhd.f, recompiled and deployed
> GEMPAK, and the 8 PM version of the cone graphic was rendered correctly.
> 3. Early this morning the Atlantic ATCF workstation was running in a very
> sluggish manner. Senior Hurricane Specialist Stacy Stewart rebooted the
> machine. The system ran a lot faster/more efficiently afterwards.
> *Other items:*
> 1. Potential Storm Surge Flooding graphic: As Hermine transitioned to a
> post-tropical cyclone, the SSU switched from using the P-surge model, which
> employs a parametric tropical cyclone wind model, to the P-ETSS
> (Probabilistic Extratropical Storm Surge) model, in which the (gridded)
> wind forcing is provided by the GFS ensemble system, to generate a more
> realistic depiction of the storm surge threat.
> Following a 1400Z (10 AM EDT) conference call, NCEP Director Bill Lapenta
> requested that MDL and NHC be provided with immediate access to resources
> on the WCOSS supercomputing clusters to run the P-ETSS model. IDSB Chief
> Becky Cosgrove contacted the model developer, Arthur Taylor. IBM then added
> the mdl.surge group to the devmax and devmax_shared queues on the Cray
> systems (Luna and Surge).
> When the resulting inundation graphic based on the P-ETSS input was deemed
> acceptable by NHC Director Rick Knabb and SSU Team Lead Jamie Rhome, TSB
> Developer Monica Bozeman set up a cron script (cron_getPETSS.sh) in the
> arcgis account on NHC's ArcGIS server (nhc-lx-ssu01) to automate the
> downloading of new input files from EMC's http location.
> *NHC RFCs:*
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