Two satellites see new Eastern Pacific tropical depression form

Nov 01, 2013
NOAA's GOES-West satellite captured this infrared image of newborn Tropical Depression 18E in the Eastern Pacific on Nov. 1 at 1200 UTC. Credit: NASA GOES Project

The eighteenth tropical depression of the Eastern Pacific Ocean hurricane season formed early on the first day of November and is expected to become a tropical storm. NASA's TRMM satellite observed moderate rainfall in the storm and NOAA's GOES-West satellite captured a look at the cloud extent.

On Oct. 31 at 3:52 p.m. EDT NASA's Tropical Rainfall Measuring Mission satellite known as TRMM passed over the developing depression. TRMM data showed an area of moderate rainfall around the forming depression's center, where rain was falling at a rate of 1.18 inches/30 mm per hour. The highest thunderstorm cloud tops were around 6.2 miles/10 km high.

NOAA's GOES-West satellite captured an of the newly developed depression located about 305 miles/485 km southwest of Manzanillo, Mexico near 16.4 north and 108.0 west at 5 a.m. EDT on Nov. 1. TD18E had maximum sustained winds near 3 mph/55 kph and is expected to strengthen and become Tropical Storm Sonia. It was moving to the north at 7 mph.

NOAA's GOES-West satellite captured an infrared image of newborn Tropical Depression 18E in the Eastern Pacific on Nov. 1 at 8 a.m. EDT. Satellite data revealed that the surface circulation became better defined on Nov. 1.

TRMM data on Oct. 31 showed the developing depression had an area of moderate rainfall around its center, where rain was falling at a rate of 30 mm per hour. The highest thunderstorm cloud tops were around 10 km. Credit: NASA/SSAI, Hal Pierce

There are several factors that forecasters at the National Hurricane Center are watching for over the weekend of Nov. 2 and 3. After 24 to 36 hours, a mid-level elongated area of low pressure or trough is expected to push the depression to the north and north-northeast bringing it toward land. Computer models show an increase in vertical wind shear from the southwest happening by Nov 4.

Explore further: NASA sees Atlantic depression become Tropical Storm Lorenzo

add to favorites email to friend print save as pdf

Related Stories

NASA sees Tropical Storm Raymond fading fast

Oct 29, 2013

Satellite data showed some recent convective activity within Tropical Storm Raymond on Oct. 28 but southwesterly wind shear and cooler ocean temperatures are predicted by the National Hurricane Center to ...

NASA eyes a 'decoupled' Tropical Depression Raymond

Oct 30, 2013

Satellite data shows that the lower level circulation of Raymond decoupled from the middle layer of the storm. When a Tropical Depression decouples, it means the layers of circulation in the atmosphere are ...

Recommended for you

New research reveals Pele is powerful, even in the sky

1 hour ago

One might assume that a tropical storm moving through volcanic smog (vog) would sweep up the tainted air and march on, unchanged. However, a recent study from atmospheric scientists at the University of Hawai'i ...

Image: Wildfires continue near Yellowknife, Canada

1 hour ago

The wildfires that have been plaguing the Northern Territories in Canada and have sent smoke drifting down to the Great Lakes in the U.S. continue on. NASA's Aqua satellite collected this natural-color image ...

Excavated ship traced to Colonial-era Philadelphia

3 hours ago

Four years ago this month, archeologists monitoring the excavation of the former World Trade Center site uncovered a ghostly surprise: the bones of an ancient sailing ship. Tree-ring scientists at Columbia ...

Tropical tempests take encouragement from environment

4 hours ago

Mix some warm ocean water with atmospheric instability and you might have a recipe for a cyclone. Scientists at Pacific Northwest National Laboratory and the Atlanta Oceanographic and Meteorological Laboratory ...

User comments : 0