On Sunday, April 26, 2015, between the hours of 12 noon (17 UTC) and 12 midnight EDT (05 UTC April 27) , changes will be implemented to NASA’s Internet access. The purpose of this outage is to complete the Corporate Route Symmetry Project which is being implemented by the Communications Services Office (CSO). As a result of these changes, users can expect an outage to the below services during this time period. Services Affected: On Sunday, April 26, 2015, changes to NASA’s Internet Access will have the following impacts: Internet access to/from all NASA networks External Virtual Private

The issues with NOAA's 4-km Merged IR data are closed and the IMERG Early and Late Runs have been restarted from the point at which they stopped. This will provide a continuous record for each, but it also means that it will take a while to process the backlog of data and catch up to the nominal latency.

Twelve tornado sightings reported to NOAA yesterday were associated with severe thunderstorms extending from the Texas Gulf coast, through Oklahoma and Kansas. The GPM core observatory satellite had a good look at this area of severe weather on April 17, 2015 at 0003 UTC (April 16, 2015 at 7:03 PM CDT). A precipitation analysis using GPM's Microwave Imager (GMI) shows that some of these severe storms were dropping rain at a rate of over 86 mm (about 3.4 inches) per hour. Reflectivity data from the Ku band on GPM's dual frequency radar was used to construct this 3-D view of tornado spawning

Due to an outage of the input 4-km IR data, the IMERG early and late runs began failing to execute on the April 14. Because of the loss of NOAA hourly IR data, PPS has had to shut off the production of NRT early and late IMERG production. We have received no valid IR data since April 14 17:00 UTC and no IR data at all since April 15 09:00 UTC. The software is able to deal with bad data by skipping it but it is currently not configured to handle the situation of not receiving any data at all. We have received information that there are product problems at NOAA but have not received any

The GPM core observatory satellite had a last look at the remnants of Cyclone Joalane in the South Indian Ocean on April 14, 2015 at 1135 UTC (about 16:35 Local Time). GPM's Microwave Imager (GMI) instrument found very little rainfall around Joalane's center but light to moderate rainfall in bands on the outer edges of the rapidly weakening tropical cyclone.