Nav: Home

NASA finds a weaker Sarai now a depression

December 31, 2019

NASA-NOAA's Suomi NPP satellite provided forecasters with an image of Tropical Cyclone Sarai and it showed a much weaker storm near Tonga in the South Pacific Ocean.

Visible imagery from NASA satellites help forecasters understand if a storm is organizing or weakening. The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard Suomi NPP provided a visible image of Sarai on Dec. 31.

The shape of a tropical cyclone provides forecasters with an idea of its organization and strength, and NASA-NOAA's Suomi NPP satellite provided a visible image of Sarai that showed the center of circulation was surrounded by wispy clouds, while the bulk of clouds and showers were pushed to the southeast of the center from outside winds or vertical wind shear. Because the center of circulation was near Tonga, Regional warnings were still in effect for Tonga. A gale warning is in force for Vava'u, Ha'apai, Tongatapu and 'Eua land areas.

At 4 a.m. EST (0900 UTC), the Joint Typhoon Warning Center issued the final advisory on  Tropical cyclone Sarai as it weakened to a depression. Sarai was centered near latitude 20.3 degrees south and longitude 174.3 degrees west, about 259 miles west-southwest of Niue. The storm is moving to the east-northeast with maximum sustained winds 30 knots  (34.5 mph/55.5 kph).

Sarai is rapidly weakening and is dissipating under adverse atmospheric conditions.
-end-
Tropical cyclones and hurricanes are the most powerful weather events on Earth. NASA's expertise in space and scientific exploration contributes to essential services provided to the American people by other federal agencies, such as hurricane weather forecasting.

By Rob Gutro 
NASA's Goddard Space Flight Center

NASA/Goddard Space Flight Center

Related Tropical Cyclone Articles:

NASA find Herold a fading ex-tropical cyclone
Former Tropical Cyclone Herold is now a fading area of low-pressure in the Southern Indian Ocean and NASA's Aqua satellite provided forecasters with a visible image.
NASA sees Tropical Cyclone Herold's eye
NASA's Aqua satellite passed over the Southern Indian Ocean and captured an image of a well-developed Tropical Cyclone Herold at hurricane strength, east of Madagascar.
A new method to improve tropical cyclone intensity forecasts
There are many reasons for model errors in numerical weather forecasting of tropical cyclone intensity.
NASA catches the dissipation of Tropical Cyclone Claudia
Tropical Cyclone Claudia was dissipating in the Southern Indian Ocean when NASA's Terra satellite captured a visible image of storm as it flew overhead in its orbit around the Earth.
NASA finds tropical cyclone 02S consolidating
NASA's Aqua satellite captured an image of Tropical cyclone 02S and the visible image showed that the storm was getting better organized.
NASA finds Tropical Cyclone's Vayu getting stretched
When NASA's Aqua satellite passed over the Northern Indian Ocean, it captured an infrared image that revealed Tropical Cyclone Vayu was elongating.
NASA takes Tropical Cyclone's Vayu's temperature
NASA's Aqua satellite passed over the Northern Indian Ocean and took the temperature of Tropical Cyclone Vayu as it moved northward in the Arabian Sea.
NASA catches development of Tropical Cyclone 02A
Visible imagery from NASA's Terra satellite provided confirmation of the development of Tropical Cyclone 02A in the Arabian Sea, Northern Indian Ocean.
NASA goes infrared on powerful Tropical Cyclone Fani
NASA's Aqua satellite focused an infrared eye on a very powerful Tropical Cyclone Fani as it approached landfall in northeastern India.
NASA finds a more circular Tropical Cyclone Lorna
NASA-NOAA's Suomi NPP satellite passed over the Southern Indian Ocean and captured a visible image of what appeared to be a more organized Tropical Cyclone Lorna.
More Tropical Cyclone News and Tropical Cyclone Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Our Relationship With Water
We need water to live. But with rising seas and so many lacking clean water – water is in crisis and so are we. This hour, TED speakers explore ideas around restoring our relationship with water. Guests on the show include legal scholar Kelsey Leonard, artist LaToya Ruby Frazier, and community organizer Colette Pichon Battle.
Now Playing: Science for the People

#569 Facing Fear
What do you fear? I mean really fear? Well, ok, maybe right now that's tough. We're living in a new age and definition of fear. But what do we do about it? Eva Holland has faced her fears, including trauma and phobia. She lived to tell the tale and write a book: "Nerve: Adventures in the Science of Fear".
Now Playing: Radiolab

Uncounted
First things first: our very own Latif Nasser has an exciting new show on Netflix. He talks to Jad about the hidden forces of the world that connect us all. Then, with an eye on the upcoming election, we take a look back: at two pieces from More Perfect Season 3 about Constitutional amendments that determine who gets to vote. Former Radiolab producer Julia Longoria takes us to Washington, D.C. The capital is at the heart of our democracy, but it's not a state, and it wasn't until the 23rd Amendment that its people got the right to vote for president. But that still left DC without full representation in Congress; D.C. sends a "non-voting delegate" to the House. Julia profiles that delegate, Congresswoman Eleanor Holmes Norton, and her unique approach to fighting for power in a virtually powerless role. Second, Radiolab producer Sarah Qari looks at a current fight to lower the US voting age to 16 that harkens back to the fight for the 26th Amendment in the 1960s. Eighteen-year-olds at the time argued that if they were old enough to be drafted to fight in the War, they were old enough to have a voice in our democracy. But what about today, when even younger Americans are finding themselves at the center of national political debates? Does it mean we should lower the voting age even further? This episode was reported and produced by Julia Longoria and Sarah Qari. Check out Latif Nasser's new Netflix show Connected here. Support Radiolab today at Radiolab.org/donate.