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Unisys Weather Enthusiast App Updates

Unisys has temporarily pulled the Unisys Weather Enthusiast App from the iOS App Store to perform an update. The current app is not compatible with iOS8 and above, and we want to use this time to update several links that have broken due to updates to Unisys Weather.

An alternative option in iOS8 and above is to create an app bookmark from Safari. To do this, simply use Safari to navigate to Unisys Weather main site or your favorite Unisys Weather product:

Select the “Share To” button at the bottom bar, center.

Select “Add to Home Screen” to set the app bookmark to your iOS home screen. You can create as many app bookmarks as you want. If you choose to bookmark an individual image or loop instead of the web page, be sure to include a descriptive title such as “Unisys Vis Satellite Image”.

1000-500mb Thickness Maps and Model Contours

Unisys weather is investigating issues with both the 1000-500mb upper air thickness from the 00Z and 12Z soundings, as well as the color contours on the NAM and GFS SLP/Precip maps.


The issue with the upper air sounding contours may be due to a bad observation near Mexico City being ingested into the system, causing the mapping/contouring functionality to key in on this bad value.

Unisys SST Anomaly Maps Update

Unisys has determined the cause of the SST anomaly charts showing rapid cooling since September. Our system was using a very limited dataset consisting of SST grids produced since only May 2014. This limited reference data caused the anomaly maps to produce results showing rapid changes amplified as the Northern Hemisphere transitioned into Fall. We have since copied over the grids for a larger reference dataset.


We have also modified the Unisys SST anomaly color enhancement and color bar with a new enhancement and displaying anomalies from -10 deg C to +10 deg C. The “zero” contour is grayed out for easier identification.

HRRR Model Now Available on NOAAPort

Unisys NOAAPort and NOAAPort Gateway users who receive the NWS satellite broadcast now have access to the High Resolution Rapid Refresh (HRRR) model, being broadcast over the NWS NOAAPort network.


Developed over the last five years by researchers at NOAA’s Earth System Research Laboratory, the HRRR is a NOAA research to operations success story. It provides forecasters more detailed, short-term information about a quickly developing small-scale storm by combining higher detail, more frequent radar input and an advanced representation of clouds and winds. The HRRR model forecasts are run in high-resolution every hour using the most recent observations with forecasts extending out 15 hours, allowing forecasters to better monitor rapidly developing and evolving localized storms.


For more information, go to NOAA’s Press Release or NWS’ Technical Bulletin. For Unisys customers with annual maintenance support, you can contact Unisys Operations for help with modifying your ingest.bul file to receive the new model.

NOAAPort SBN Expansion Update – 9/24/14

To all Unisys NOAAPort Users:


The NWS has reported that the termination of the “old” NOAAPort downlink will occur on Tuesday, September 30th at 8:00 pm EDT (0000 UTC 10/1/14). At that time, the available bandwidth on NOAAPort will increase from the current 30Mbps to 70Mbps. The NWS has scheduled the operational dissemination of the High Resolution Rapid Refresh (HRRR) model also on September 30, 2014 (see http://www.nws.noaa.gov/os/notification/tin14-32hrrr_oper.htm for details).


All NOAAPort users should be transitioned over to the frequency before that time. Instructions on accessing and verifying the new NOAAPort frequency are below. Any questions or issues should be directed to: technical-support@weather.unisys.com


Unisys is also currently working with several users seeing above average frame losses on the new frequency. If you are seeing excessive frame loss on the new frequency, please contact technical-support@weather.unisys.com


Thank you,
-Unisys Weather