Below are a few recent satellite anomalies of note that may have affected the quality of the IMERG precipitation products. 10 May 2016: The data flow from the Himawari-8 GEO satellite was interrupted for 57 hours, 7 May, 05 UTC – 9 May, 14 UTC and during that time there is a continuous zone of missing values in the IR precipitation data in the center of the Himawari-8 sector (over Japan), where data from the adjoining GEO satellites are unable to fill the gap. The IR-based displacement vectors were therefore computed using the standard fallback of spatial interpolation. 20 April 2016

UPDATE 5/10/16 1:06pm EDT: Access to PPS systems and services have been restored. Thank you for your patience during this period. Please report any problems; and do not hesitate to contact us if you have any questions or concerns. ----- The Precipitation Processing System (PPS) is currently experiencing a hardware problem which is impacting PPS data production, ftp archive access (arthurhou, trmmopen, etc.), and PPS web sites (STORM, THOR, etc.) today - Tuesday May 10,2016. Our system programmers are currently working on this problem and hope to restore services as soon as possible. We will

Over the past week extreme rainfall caused flooding that resulted in the deaths of four in Haiti and the evacuation of over 2500 people in the Dominican Republic. The GPM core observatory satellite saw a line of heavy rainfall on the eastern side of the Dominican Republic when it flew over on May 8, 2016 at 0428 UTC. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments collected data that were used to estimate rainfall. This precipitation is shown on a top-down satellite view. Powerful storms were measured dropping rain at a rate of almost 300 mm (11.8 inches)

PPS will be restarting F17 processing. There will be 88 1C products that will be retracted and reprocessed for the following dates: 2016-04-13 (18:29:37) to 2016-04-19 (23:56:53). Starting from this date and forward all 1C F17 products will flag the 37V channel as bad data and the Brightness Temperatures will be missing. We apologize for any inconvenience or problems that this may cause and appreciate your understanding and patience. Please contact us if you have any questions or concerns.

Severe spring thunderstorms frequently spawned tornadoes from the Gulf Coast north and eastward during the past seven days. From April 25 to May 2, 2016 there were over 67 tornadoes in the United States reported to the National Oceanic and Atmospheric Administration (NOAA). Many of these tornadoes were located in an area that includes the states of Texas, Oklahoma, Kansas, and Nebraska. This area of the Great Plains has been labeled Tornado Alley due to the many tornadoes that occur there this time of year. Gulf moisture clashing with frontal systems moving over the United States provided much