[Ncep.nhc.nco_contacts] UPDATED: TSB Morning Rounds - Mon Aug 07, 2017

Pablo Santos pablo.santos at noaa.gov
Mon Aug 7 11:53:22 UTC 2017

All: The following was added to HSU section this morning (forecasters 
issues form/tab updated accordingly as well):

4. Phone number of the NWS NOC needs to be updated on in the SDM/phone 
lists. It is 301-244-9650. Sheet says 224. May want to include the ER 
ROC email on the sheet as well. Buoy 42057 reports every 10 minutes so 
supplemental data providing peak 1-minute winds is now showing peak 
during the ten minute period rather than hourly. Need to look at NDBC 
website to see this. May need to adjust what is plotted in NAWIPS in 
order to see the peak hourly 1-minute wind. Matt Onderlendi to look into 

5. Buoy 42056 is mislabeled near 42057 just south of Cozumel. This might 
be an external issue. Matt Onderlendi to look into this.

6. Really need AWIPS2 to go through the satellite loops faster. With the 
1-min meso data, the clouds don't really move enough even holding the 
arrow down. Needs to go as fast as holding down the plus sign in NAWIPS. 
Chris Mello to look into this.

On 8/6/17 9:26 PM, TSB Admin wrote:
> Here is today's summary of NHC computer operations:
> --- Craig Mattocks
> ----------
> *TAFB:*
> 1. N-AWIPS issues: Problem (error) executing SWELL_GlobalWave 
> [formatter?] on the Pacific side on Saturday. TSB AWIPS II Sysadmin 
> Chris Mello will investigate.
> 2. GFE/NCP issues: Issues remain on LX3 for user account hcobb and 
> logging into GFE. Called NCF, ticket number 146417 opened. Chris Mello 
> will follow up on this issue.
> *HSU:*
> 1. Other Techincal issues: Significant differences exist between 
> GFS-TABM and ECMWF-TABM forecast tracks; TABM-EC is closer to the 
> ECMWF deterministic positions than TABM-GFS is to the GFS sfc 
> positions. Why?
> Explanation from Mark DeMaria (paraphrased): The ECMWF SHIPS and 
> related models (TAB, LGEM, RII) still use the 2016 configuration. For 
> the TAB model, the averaging radius for computing the steering flow is 
> 450 km. The GFS TAB uses a smaller radius (350 km) in the 2017 
> configuration. This results in slightly lower track forecast errors, 
> but it retains too much curvature from the GFS vortex, which sometimes 
> introduces significant trochoidal wobbles in the TAB track. If the TAB 
> model starts off a litttle slow for a westward moving TC, that 
> introduces a northward bias due to GFS representation of the TC that 
> was not removed properly. The EC TAB uses the ECMWF fields, while the 
> GFS TAB uses the GFS fields. If the represenation of the TC or the 
> steering is different in the two models, TAB wll also be different. 
> Matt Onderlinde and I working on changing the radius of the GFS TAB 
> back to 450 km to reduce the vortex influence. We hope to have code to 
> submit to NCO for operational deployment by the end of this week.
> 2. ATCF issues: No EC-SHIPS product for Atlantic invest storm al992017 
> at 18Z Sat Aug 05 2017. TSB will consult with Mark DeMaria to diagnose 
> the cause.
> 3. Early Wind Speed Probability (WSP) failiure. The 00Z 20170805 
> nhc_windprob_early_00 job for the west Pacific storm wp072017 failed 
> on WCOSS because the e-deck (track forecast uncertainty) file 
> /nhc/save/guidance/storm-data/zfst/ewp072017.dat was huge in size 
> (approximately 23 MB, compared to the normal size of 5-10 kB), due to 
> either an error in JTWC's ATCF processing or the addition of new 
> models to the file. NRL's Buck Sampson was contacted.
> The WSP can still run without an e-deck. The code reverts back to 
> basin-wide track error statistics, usually resulting in only a small 
> change in the answer. NCO System Programmer Analyst (SPA) Simon Hsiao 
> trimmed the e-deck and the job ran successfully to completion.
> *Other items:*
> 1. From the SDM's log: The 12Z nhc_guidance job failure on Monday 31 
> July 2017 was due to 0-byte input data. NHC's Monica Bozeman 
> investigated and found the home directory on their server where the 
> data is processed was full, so they were unable to copy the data over. 
> The disk space on the server in question is not monitored by NCO. IWSB 
> Sysadmin Doug Gaer is compiling a list of all volumes that will be 
> added to the NCO Big Brother monitoring/alert system.
> *NHC RFCs:*
> 1. RFC 249 - 'get_rtgsst.bash' v1.0.2 – NHC does not need to send the 
> daily Real Time Global (RTG) SST files to WCOSS anymore since the NHC 
> guidance suite no longer uses them. This send will be turned off. To 
> be implemented on Monday, August 7 at 1200Z (8 am EDT).
> 2. HMON implementation delayed. The new Hurricanes in a Multi-scale 
> Ocean-coupled Non-hydrostatic (HMON) model v1.0.0 will become 
> operational on Tuesday, August 15, 2017 at 1200Z (8 am EDT):
> http://www.nws.noaa.gov/os/notification/scn17-83hmonaaa.htm
> 3. The 30-day evaluation for the Probabilistic and Deterministic 
> Extra-Tropical Storm Surge models (PETTS/ETSS) was restarted on 
> Friday, August 4 because tides were not being calculated at some 
> secondary tidal locations. During the previous evaluation, an infinite 
> loop was discovered and corrected in the tidal post-processing code 
> and the precision was increased to 64 bits. Feedback should be sent to 
> Steven Earle prior to Tuesday, September 5.
> The Service Change Notice (SCN) for the ETSS and PETSS may be viewed at:
> http://www.nws.noaa.gov/os/notification/scn17-63etss_petssaab.htm


Dr. Pablo Santos
Acting Chief
Technology and Science Branch
National Hurricane Center, Miami, FL
(c) 954-559-4965
Facebook: https://www.facebook.com/NWSNHC/
Twitter: @NWSNHC @NHC_Atlantic @NHC_Pacific  @NHC_TAFB  @NHC_Surge

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