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Content which is associated solely with the Tropical Rainfall Measuring Mission.

California's Rainfall Analyzed From Space

California's Rainfall Analyzed From Space
It has been very dry in the state of California for the past couple years. The lack of rain in 2013 and 2014 contributed to exceptional drought conditions in the state. Records were set over the past winter for the lowest winter snow packs recorded in a century. Rainfall produced by storms moving into California from the Pacific Ocean has recently brought some very temporary drought relief. Precipitation data (3B42) from various satellites such as TRMM and recently the GPM core observatory satellite have been collected, merged and archived at the Goddard Space Flight Center since 1998. The

TRMM And GPM Core Satellite See Sinlaku Headed Toward Vietnam

TRMM And GPM Core Satellite See Sinlaku Headed Toward Vietnam
Tropical storm Sinlaku formed on November 26, 2014 over the southeastern Philippines. As a tropical depression Sinlaku caused flooding in areas of the Visayas and Mindanao. The TRMM and the GPM core satellite viewed Sinlaku after it had strengthened into a tropical storm over the South China Sea. The first image shows rainfall derived from TRMM Microwave Imager (TMI) data collected when the satellite flew over on November 28, 2014 at 0716 UTC. The second view shows rainfall from GPM Microwave Imager (GMI) measurements received a little over six hours later at 1326 UTC. Rainfall was measured by

NOAA Network Restored

The NOAA network is gradually being restored. MHS data appears to have started flowing around 02:00 UTC on 23 October 2014, but as of 08:00 UTC on 23 October 2014 the Meteosat geo-IR data was still missing. As a result, users should see reduced areas of "missing" and higher-quality estimates in general starting with the 03:00 UTC 23 October 2014 3B42RT.

3B4xRT Reduced Volume of Data

Starting about 22:00 UTC on 20 October 2014 PPS started having issues with missing input data files originating at NOAA. Informally we have been told that there is a major network issue, but have no insight on its nature or likely duration. Until this is resolved, the input data for the 3B4xRT suite of products will suffer greatly reduced volume. Currently, we are not receiving sounder data, and the IR fields only have GOES-E and -W.

GPM Measures Rainfall In Tropical Storm Adjali

GPM Measures Rainfall In Tropical Storm Adjali
Moderate rainfall was occurring around the center of Tropical Storm Adjali before it dissipated, according to data from NASA and the Japan Aerospace Exploration Agency's Global Precipitation Measurement or GPM satellites. Adjali became the first named storm of the Southwest Indian Ocean 2014/2015 cyclone season when it formed on November 16, 2014. Adjali became a strong tropical storm the next day and just two days later started to dissipate. The GPM observatory captured data on Adjali's rainfall rates on Nov. 18. GPM's Microwave Imager (GMI) instrument is similar to the Tropical Rainfall

Hurricane Vance Weakening, Heading Toward Mexico

Hurricane Vance Weakening, Heading Toward Mexico
The TRMM satellite flew over hurricane Vance on November 2014 at 0953 UTC. Rainfall derived from TRMM's Microwave Imager (TMI) data collected with that view are shown overlaid on a 1000 UTC GOES-WEST image. This analysis showed that Vance had a large area of heavy rainfall near the center of the hurricane. Some intense storms in that area were dropping rain at a rate of over 50mm/hr (almost 2 inches) per hour. Vance's power peaked late on November 3, 2014 with winds of about 95 kts (about 109 mph). Vertical wind shear had started to weaken the hurricane at the time of this view but Vance was

Tropical Storm Vance Forms

Tropical Storm Vance Forms
The hurricane season continues to be active in the eastern Pacific Ocean. A Tropical depression south of southern Mexico was upgraded to tropical storm Vance yesterday. The National Hurricane Center (NHC) predicts that Vance will become a hurricane Sunday morning making it the sixteenth hurricane of the 2014 eastern Pacific Ocean hurricane season. TRMM's Microwave imager (TMI) had a good view of the rainfall around tropical storm Vance on October 31, 2014 at 0234 UTC. An analysis of this rainfall is shown overlaid on a 0245 UTC GOES-EAST enhanced infrared image. Intense convective

Goodbye to TRMM, First Rain Radar in Space

Goodbye to TRMM, First Rain Radar in Space
Friday, October 31, 2014
After 17 years of groundbreaking 3-D images of rain and storms, the joint NASA and Japan Aerospace Exploration Agency Tropical Rainfall Measuring Mission (TRMM) will come to an end next year. NASA predicts that science operations will cease in or about April 2015, based on the most recent analysis by mission operations at NASA’s Goddard Space Flight Center, Greenbelt, Maryland. Artist concept of TRMM in space over the eye of a tropical cyclone. Image Credit: NASA On July 8, 2014, pressure readings from the fuel tank indicated that TRMM was near the end of its fuel supply. As a result, NASA...
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Tropical Storm Ana Still Vigorous

Tropical Storm Ana Still Vigorous
The TRMM satellite flew over tropical storm ANA on October 22, 2014 at 1935 UTC (about 8:30 AM local time). ANA formed over ten days ago but after moving to the northwest of the Hawaiian islands the tropical storm was shown to be still vigorous. A rainfall analysis from TRMM's Microwave Imager (TMI) revealed an area near ANA's center of circulation where rain was falling at a rate of over 40 mm (about 1.6 inches) per hour. The Joint Typhoon Warning Center (JTWC) predicts that ANA will maintain tropical storm intensity for the next five days while moving over open waters toward the northwest.

Hurricane Ana Bypasses But Soaks Hawaiian Islands

Hurricane Ana Bypasses But Soaks Hawaiian Islands
Fortunately for Hawaii hurricane Ana passed to the south of the islands. This meant that for the third time this year the Hawaiian Islands were spared destructive hurricane force winds. However, Ana caused occasionally heavy rain over much of the area and was responsible for flash floods on the the big island (Hawaii). This analysis shows estimated rainfall totals during the period when hurricane Ana formed on October 13, 2014 and moved west of the Hawaiian Islands on October 21, 2014. The TRMM-based, near-real time Multi-satellite Precipitation data (TMPA) analysis is used to monitor rainfall
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