NASA infrared image sees a stronger Tropical Storm Daphne

Apr 03, 2012
NASA's Terra satellite passed over Daphne at 1014 UTC (6:14 a.m. EDT or 10:14 p.m. local time, Auckland, New Zealand), and used infrared imagery from the Moderate Imaging Spectroradiometer (MODIS) instrument to visualize its cloud extent. The MODIS image showed Daphne to be more rounded and less elongated than it appeared in satellite imagery on April 2, indicating that wind shear had lessened. Credit: NASA/JTWC

Tropical Storm Daphne strengthened overnight and was captured in an infrared image from NASA's Terra satellite. Daphne moved away from the Fiji islands and remains north of New Zealand in the South Pacific on April 3, 2012.

NASA's passed over Daphne at 1014 UTC (6:14 a.m. EDT or 10:14 p.m. local time, Auckland, New Zealand), and used from the Moderate Imaging Spectroradiometer (MODIS) instrument to visualize its cloud extent. Like the infrared goggles used to see at night can see cloud cover of from space. The MODIS image showed Daphne to be more rounded and less elongated than it appeared in satellite imagery on April 2, indicating that wind shear had lessened. At that time, its minimum central pressure was 986 millibars.

On April 3 at 0300 UTC (April 2 at 11 a.m. EDT/3 p.m. local time, Auckland, New Zealand time), Tropical Storm Daphne had near 50 knots (57.5 mph/92.6 kph), up from 35 knots (40 mph/64 kph) on April 2. Daphne was located 744 nautical miles (856 miles/1378 km) east of Kingston Island, near 27.8 South and 178.0 West. Daphne was speeding to the southeast at 25 knots (28.7 mph/46.3 kph). As Daphne has moved, it has grown in size. Tropical-storm-force winds now extend as far as 300 nautical miles (345.2 miles/555.6 km) from the center, especially in the east and southern quadrants. Tropical-storm-force winds in the other quadrants appear to extend just further than 100 nautical miles (115 miles/185 km).

All warnings have been dropped for Fiji land areas, but mariners can expect rough seas between Fiji and New Zealand as Daphne continues moving southeast.

Forecasters at the Fleet Weather Center in Norfolk, Virginia are currently maintaining forecasts for tropical cyclones in the South Pacific. The current forecast takes Daphne on a south-southeasterly track over the next several days and keeps it away from New Zealand. Forecasters expect Daphne to begin weakening as it continues to move southeast as wind shear will increase and sea surface temperatures will drop.

Explore further: Antarctic ice shelves rapidly thinning

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Antarctic ice shelves rapidly thinning

13 hours ago

A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain ...

More big storms increase tropical rainfall totals

Mar 25, 2015

Increasing rainfall in certain parts of the tropics, colloquially described as the wet get wetter and warm get wetter, has long been a projection of climate change. Now observations have shown that an increase ...

Preparing Boston for the "big one"

Mar 25, 2015

In 1755, a major earthquake shook the Boston area, toppling chimneys and inspiring sermons and poems about the wrath of God, such as "Earthquakes the Works of God and Tokens of his Just Displeasure" and "The ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.