Tropical Depression Peipah Poised for Landfall, then Dissipating Quickly
Hurricane Season 2007: Peipah (Western Pacific)
Tropical Depression Peipah is currently moving though the South China Sea, and
is expected to make landfall in southeast Vietnam late Nov. 9 and dissipate
quickly. There are several factors that will contribute to Peipah's quick
demise including cooler waters, and dry air flowing across the western South
China Sea from southeast Asia.
On Nov. 8 at 1200 UTC (7:00 a.m. EDT) Peipah was near 15.8 degrees north
latitude and 112.8 east longitude. It was moving southwest at 8 knots (9 mph),
and had maximum sustained winds near 30 knots with gusts to 40 knots.
This time series of images of Tropical Depression Peipah before it hit the
Philippines on Nov. 4, as it moved over them on Nov. 6 and into the South China
Sea on Nov. 7.
Click images for enlargements.
These infrared images were created by data from the Atmospheric Infrared Sounder
(AIRS) on NASA's Aqua satellite. They show the temperature of the cloud tops or
the surface of the Earth in cloud-free regions. The lowest temperatures (in
purple) are associated with high, cold cloud tops that make up the top of the
depression. The infrared signal does not penetrate through clouds. Where there
are no clouds the AIRS instrument reads the infrared signal from the surface of
the Earth, revealing warmer temperatures (red). This infrared image shows large
areas of strong convection surrounding the core of the storm (in purple).
The first image was taken on Nov. 4 at 1:30 p.m. local time as the center of
Peipah was moving westward in the Philippine Sea and approaching the
Philippines from the east. The second image is from Nov. 6, also at 1:30 p.m.
local time. The final image is from Nov. 7, again at 1:30 p.m. local time after
it crossed Luzon, the Philippines and was meandering slowly southwestward in the
South China Sea.
Peipah is now drawing a bead on Vietnam. Forecasters are calling for landfall at
the city of Nha Trang during the night time hours of Nov. 9 and early morning
hours of Nov. 10.
Goddard Space Flight Center
Images credit: NASA/JPL
Typhoon Peipah Now Headed for Vietnam
Click image for enlargement.
Typhoon Peipah crossed through the Philippines on Nov 3 and is now targeting
On Nov. 5 at 1800 UTC (1 p.m. EST) Typhoon Peipah was packing winds of 65 knots
(74 mph) with higher gusts and was headed to Vietnam. It was a Category One
Typhoon on the Saffir-Simpson scale and was located at 18.0 North Latitude and
118.8 East Longitude, moving westward near 2 knots (2 mph).
According to the Joint Typhoon Warning Center, "Typhoon Peipah has continued to
intensify under the combined influences of low vertical wind shear, favorable
upper level outflow and high ocean heat content. A banding eye has appeared in
recent microwave satellite imagery. Interaction with the island of Luzon is
disrupting the western portion of the storm circulation, hampering development
of associated convection in that region of the storm."
It is expected to make landfall on November 9, north of the city of Nha Trang,
Vietnam, then continue to move inland into Cambodia.
This infrared image from Nov. 3 at 4:47 UTC (or Nov. 2 at 12:47 a.m. EST) was
created by data from the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua
satellite. At this time, Peipah is headed for Luzon, Philippines and had winds
at 55 knots (63 mph).
Tropical Depression Peipah's clouds and rains are the blue and purple areas.
This AIRS image shows the temperature of the cloud tops or the surface of the
Earth in cloud-free regions. The lowest temperatures (in purple) are associated
with high, cold cloud tops that make up the top of the storm. The infrared
signal does not penetrate through clouds. Where there are no clouds the AIRS
instrument reads the infrared signal from the surface of the Earth, revealing
warmer temperatures (red).
Rob Gutro (From NHC reports)
Goddard Space Flight Center
Image credit: NASA/JPL