GPM

A low pressure trough moving slowly westward through the northwestern Hawaiian Islands caused destructive flooding and mudslides over the past weekend. The trough disrupted the normal northeast trade winds flow north of Oahu on April 12, 2018. This caused extremely heavy rainfall as the trough deepened and moved very slowly over Kauai during the weekend. The 28.1 inches (713 mm) of rain reported in Hanalei within a 24 hour period was close to a record for the small town on Kauai's northern coast. Almost 32.4 inches (822 mm) of rain was reported during the same period over Wainiha, Kauai

PPS will start to process the TRMM TMI level 2 and level 3 GPROF products, the core member of the TRMM era GPROF products family, on Thursday, April 19, 2018. Similar to the early released TRMM era AMSRE, AMSUB, SSMI, MHS, SSMIS, AMSR2 and ATMS level 2 and level 3 products, all level 2 and level 3 GPROF products will be produced as GPM version V05, all products are in HDF5 format, all product names will use the GPM naming convention and the produced data will appear both in STORM: https://storm.pps.eosdis.nasa.gov/storm/ and on "arthurhou": ftp://arthurhou.pps.eosdis.nasa.gov/ after these are

Yesterday, Sunday April 15th, a line of strong storms at one point stretched from the Florida Straits below the Florida Keys all the way up the East Coast and into Ohio. Many of the storms were strong with wide spread reports of wind damage from north Florida up through the Carolinas and into central Virginia. Among these were several reports of tornadoes from Florida to Virginia. The most significant were an EF-2 tornado that stuck Greensboro, NC, killing one person, and a tornado near Lynchburg in Amherst County Virginia that injured 8 people. GPM captured this image of the advancing line of

As expected, tropical cyclone KENI followed a track similar to tropical cyclone JOSIE and passed to the southwest of Fiji's main island of Viti Levu on April 10, 2018 (UTC). No casualties were reported with KENI even though it was a more powerful tropical cyclone than JOSIE. KENI was still intensifying when it passed directly over the island of Kadavu located just south of Viti Levu. Flash flooding was reported on Viti Levu and Kadavu. Maximum sustained winds of greater than 70 kts (81 mph) were responsible for widespread damage caused by the direct hit to Kadavu. KENI's peak winds of 85 kts

Another tropical cyclone called KENI has formed in the South Pacific Ocean between Vanuatu and Fiji. The Joint Typhoon Warning Center (JTWC) issued it's first warning for tropical cyclone KENI on April 8, 2018 at 2100Z. Tropical cyclone KENI is following a track similar to tropical cyclone JOSIE that recently caused deadly flooding in Fiji. The GPM core observatory satellite passed above tropical cyclone KENI on April 9, 2018 at 1109Z. This analysis of rainfall around tropical cyclone KENI was accomplished using data collected by GPM Microwave Imager (GMI) and Dual Frequency Precipitation

The GPM core observatory satellite again passed over the center of tropical cyclone IRIS on April 6, 2018 at 0027 UTC (10:27 AM AEST). The location of IRIS' low level center of circulation is shown here with a red tropical storm symbol. Data collected by GPM's Microwave Imager (GMI) revealed that heavy convective rainfall was sheared to the southeast of IRIS' surface center of circulation. Those GMI data showed that precipitation in that area of strong convection was falling at a rate greater than 59 mm (2.3 inches) per hour while data received by GPM's Dual Frequency Precipitation Radar (DPR)

IRIS has taken a long, fluctuating and serpentine trek since the tropical cyclone formed in the Coral Sea northeast of Australia on March 24. For a while IRIS weakened and was downgraded to a tropical low. The tropical low moved toward the northeastern coast of Australia and was upgraded again to tropical cyclone IRIS on April 2. The tropical cyclone has then moved generally southeastward parallel to the Australian coast. This analysis from data collected by Microwave Imager (GMI) and Dual Frequency Precipitation Radar (DPR) instruments shows that extremely heavy rain was falling west of IRIS'

Tropical cyclone Josie didn't make landfall in Fiji but it's heavy rainfall resulted in deadly flooding. Approximate locations of tropical cyclone Josie, as it moved close to Fiji, are shown overlaid in white. Josie's clockwise circulation streamed moisture over Fiji causing flooding that led to the deaths of at least four people. This rainfall accumulation analysis used Integrated Multi-satellitE Retrievals for GPM (IMERG) data. Those data are generated by NASA's Precipitation Processing System every half hour within about 6 hours from when data are acquired. IMERG data are acquired from the

Tropical storm JELAWAT intensified as expected and was upgraded to typhoon JELAWAT yesterday. Today JELAWAT has continued to rapidly intensify and maximum sustained wind speeds in the typhoon were estimated at 115 kts (132 mph). The GPM core observatory satellite had an excellent view of rapidly intensifying tropical storm JELAWAT on March 29, 2018 at 1546 UTC. JELAWAT had wind speeds of about 60 kts (69 mph) when GPM passed over head. An eye hadn't formed yet but rain bands were wrapping around JELAWAT's well established center of circulation. GPM's radar (DPR Ku Band) revealed that rain was