October 11

More rain, lower temperatures, and clouds!

This system of storms that has been sitting over Fiji will persist throughout today. The cloud cover and rainfall has lessened as of recently, but is still significant. There are two pictures below from MTSAT mixed IR/Visible satellite retrievals, the first is from 8:00 pm, and the second from 3:00 am.

Screen shot 2013-10-10 at 9.28.45 AM

Screen shot 2013-10-10 at 9.28.59 AM

Cloud cover weakening as the night goes on and the earth cools is not an unfamiliar process, however what is seen above is also indicative of part of the storm system moving on. This may be better seen from a zoomed out version of the same above two images shown below.

Screen shot 2013-10-10 at 9.35.02 AM

Screen shot 2013-10-10 at 9.35.14 AM

Current rainfall radar (click to watch it loop) shows modest activity over all of the islands, with the most rainfall over the oceans just to the east.

animated_nau

The atmospheric sounding (below) shows a deep moist layer, 42 mm of precipitable water (~1.5 inches), and surface temperatures at around 20˚C (70˚F).

2013101012.91680.skewt

Winds at the surface are low, but increase rapidly with altitude.

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