The TRMM satellite flew above weakening tropical storm Daniel on July 10, 2012 at 0003 UTC. TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data from that pass showed that only light to moderate rainfall (.0.78 to 1.57 inches/20 to 40 mm/hour) was occurring with the weakening storm.
This analysis of sea surface temperatures is from July 8-10, 2012. Daniel's predicted path (shown in white) takes it over water with temperatures of about 24-25 C (~75.2 to 77.0 F). The boundary of 26 C (~79 F ) temperatures are shown in yellow on this analysis. Credit: Credit: NASA/SSAI, Hal Pierce
When TRMM passed over Daniel on July 11 at 0858 UTC, it observed a few strong thunderstorms near Daniel's center of circulation reaching to heights of over 11km (~6.8 miles). Radar reflectivity values of almost 42 dBZ were being returned to TRMM PR indicating that moderate to heavy rainfall was occurring in that area.
Daniel is crossing over into the central Pacific Ocean today. On Friday the weakening tropical depression is expected to be south-southeast of the Hawaiian Islands.
Rob Gutro | EurekAlert!
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