Featured Research

from universities, journals, and other organizations

NASA caught Tropical Storm Rina forming, strengthening

Date:
October 24, 2011
Source:
NASA/Goddard Space Flight Center
Summary:
NASA's Tropical Rainfall Measuring Mission satellite called TRMM and NASA's Aqua satellite captured radar and temperature data that showed Tropical Storm Rina forming in the western Caribbean Sea yesterday. Today, Rina continues strengthening.

On Oct. 23 at 1:28 p.m. NASA's TRMM satellite noticed limited areas of heavy rainfall (2 inches/50 mm/hr) in developing Tropical Storm Rina. Light to moderate rainfall (green and blue) around much of the storm was falling at a rate between .78 to 1.57 inches/20 to 40 mm per hour).
Credit: SSAI/NASA, Hal Pierce

NASA's Tropical Rainfall Measuring Mission satellite called "TRMM" and NASA's Aqua satellite captured radar and temperature data that showed Tropical Storm Rina forming in the western Caribbean Sea yesterday. Today, Rina continues strengthening.

The National Hurricane Center (NHC) upgraded an area of disturbed weather in the Caribbean to tropical depression eighteen and then to tropical storm Rina on October 23, 2011. The TRMM satellite flew over the forming tropical cyclone on October 23, 2011 at 1728 UTC (1:28 p.m. EDT).

Data from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) was used to create a rainfall image from the TRMM team at NASA's Goddard Space Flight Center in Greenbelt, Md. The rainfall image showed that the future storm already was well organized and had a large area of heavy rainfall extending toward the northeast from eastern Honduras. Up until the morning hours (local time) on Monday, October 24, Honduras had a tropical storm watch in effect for its northeastern coast. That watch was dropped by 10 a.m. EDT as Rina moved away.

Today, Oct. 24, that rainfall is affecting the northeastern coast of Honduras and Cayman Islands. The NHC said "Rina is expected to produce total rain accumulations of 1 to 3 inches along the northeast coast of Honduras. Rainfall amounts of 2 to 4 inches are possible over the Cayman Islands."

At 11 a.m. EDT on Oct. 24, Rina's maximum sustained winds were near 45 mph (75 kmh). Those tropical storm-force winds extend out 85 miles (140 km) from the center, making Rina a small tropical storm over 170 miles in diameter.

Rina is in an environment with warm water (over the 80F/26.6C threshold needed to maintain a tropical cyclone) and low wind shear. It is centered near 17.1 North latitude and 82.9 West longitude, which is about 190 miles (305 km) southwest of Grand Cayman and 370 miles (595 km) east-southeast of Chetumal, Mexico. Rina was moving to the northwest at 6 mph (9 kmh). Minimum central pressure is 1001 millibars.

When NASA's Aqua satellite passed over Rina earlier today at 2:47 a.m. EDT the Atmospheric Infrared Sounder (AIRS) instrument took an infrared reading of Rina's cloud top temperatures. The colder the cloud top temperatures, the higher and stronger they are. AIRS temperature data showed a very large area of strong convection and thunderstorms around the center of circulation where cloud top temperatures were colder than -63F (-52C). Those temperatures indicate strong thunderstorms and heavy rainfall. AIRS infrared data showed that Rina continues to become better organized. The AIRS data was created into a color-coded image at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

There are a couple of factors steering Rina through the Caribbean Sea. In the mid-level of the atmosphere there's a ridge (elongated area) of high pressure building over the northern Gulf of Mexico, which is expected to turn Rina to the west-northwest. The NHC noted that as the ridge moves eastward in a couple of days, it will take Rina northwest, then northward. The NHC expects Rina to become a hurricane tomorrow.


Story Source:

The above story is based on materials provided by NASA/Goddard Space Flight Center. The original article was written by Rob Gutro. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Goddard Space Flight Center. "NASA caught Tropical Storm Rina forming, strengthening." ScienceDaily. ScienceDaily, 24 October 2011. <www.sciencedaily.com/releases/2011/10/111024153418.htm>.
NASA/Goddard Space Flight Center. (2011, October 24). NASA caught Tropical Storm Rina forming, strengthening. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2011/10/111024153418.htm
NASA/Goddard Space Flight Center. "NASA caught Tropical Storm Rina forming, strengthening." ScienceDaily. www.sciencedaily.com/releases/2011/10/111024153418.htm (accessed September 21, 2014).

Share This



More Earth & Climate News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Climate Change Rally Held in India Ahead of UN Summit

Climate Change Rally Held in India Ahead of UN Summit

AFP (Sep. 20, 2014) Some 125 world leaders are expected to commit to action on climate change at a UN summit Tuesday called to inject momentum in struggling efforts to tackle global warming. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
New Music With Recycled Instruments at Colombia Fest

New Music With Recycled Instruments at Colombia Fest

AFP (Sep. 19, 2014) Jars, bottles, caps and even a pizza box, recovered from the trash, were the elements used by four musical groups at the "RSFEST2014 Sonorities Recycling Festival", in Colombian city of Cali. Duration: 00:49 Video provided by AFP
Powered by NewsLook.com
Raw: Wildfires in CA Burn Forest Asunder

Raw: Wildfires in CA Burn Forest Asunder

AP (Sep. 18, 2014) An out-of-control Northern California wildfire has nearly 2,800 people from their homes as it continues to grow, authorities said Thursday. Authorities said a man has been arrested on suspicion of arson for starting the fire on Saturday. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins