Nav: Home

Intensifying Tropical Depression 9 checked by NASA

August 31, 2016

Heavy rainfall is a big part of Tropical Depression 9, which is strengthening in the Gulf of Mexico. The Global Precipitation Measurement mission, or GPM, core satellite passed over the gulf in space and measured that rate of rainfall.

The National Hurricane Center (NHC) expects Tropical Depression 9 to intensify over the next day or so. Vertical wind shear is predicted to be low and the tropical depression is moving over warmer water. Both of these factors will provide fuel for intensification.

On Aug. 31 the NHC posted a hurricane watch from Anclote River to Indian Pass, Florida. In addition a tropical storm warning is in effect from Anclote River to the Walton/Bay County line in Florida.

The GPM core observatory satellite scanned the tropical depression on Aug. 31, 2016, at 2:46 a.m. EDT (0646 UTC). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments saw heavy rainfall in strong convective storms in the Gulf of Mexico northwest of Cuba. GPM's DPR found that some of these intense storms were dropping rain at a rate of greater than 4.1 inches (105 mm) per hour.

Data from the GPM satellite's radar (DPR Ku Band) was used to examine the shape of precipitation within Tropical Depression 9. This 3-D examination of precipitation showed that some tall convective storms were reaching heights above 9.9 miles (16 km). Radar reflectivity values of over 52 dBZ were returned to the satellite providing more evidence of the intensity of downpours in the area. Rainfall within the tropical depression supplies additional energy needed for intensification.

That heavy rainfall is one of the things that the intensifying depression is expected to bring to Florida over the next several days in addition to storm surge, tropical-storm-force or even hurricane-force winds, and isolated tornadoes.

The National Hurricane Center said that the depression is expected to produce additional rain accumulations of 2 to 4 inches over western Cuba through today, with maximum storm total amounts up to 20 inches. These rains could cause life-threatening flash floods and mud slides.

Storm total rainfall amounts of 5 to 10 inches are possible over portions of central and northern Florida through Friday, Sept. 2, with isolated maximum amounts of 15 inches possible. Coastal areas of Georgia and the Carolinas are expected to receive storm total rainfall of 4 to 7 inches, with local amounts of 10 inches possible through Saturday morning. These rains may cause flooding and flash flooding.

At 8 a.m. EDT (1200 UTC), the center of Tropical Depression 9 was located near 24.6 degrees north latitude and 88.1 degrees west longitude. That's about 400 miles (645 km) south-southwest of Apalachicola, Florida and about 420 miles (675 km) west-southwest of Tampa.

The depression is moving toward the north near 2 mph (4 kph). NOAA's National Hurricane Center said that a north-northeastward motion at a faster forward speed is expected to begin later today, Aug. 31, and a turn toward the northeast is forecast tonight. On the forecast track, the center of the tropical cyclone will approach the northwest Florida coast in the warning area on Thursday afternoon. The estimated minimum central pressure is 1001 millibars.

Maximum sustained winds are near 35 mph (55 kph) with higher gusts. Strengthening is forecast during the next 48 hours, and the depression is expected to become a tropical storm later today, and could be near hurricane strength by the time landfall occurs.

For updated forecasts from NHC, visit: http://www.nhc.noaa.gov
-end-


NASA/Goddard Space Flight Center

Related Depression Articles:

Tackling depression by changing the way you think
A thought is a thought. It does not reflect reality.
How depression can muddle thinking
Depression is associated with sadness, fatigue and a lack of motivation.
Neuroimaging categorizes 4 depression subtypes
Patients with depression can be categorized into four unique subtypes defined by distinct patterns of abnormal connectivity in the brain, according to new research from Weill Cornell Medicine.
Studies suggest inflammatory cytokines are associated with depression and psychosis, and that anti-cytokine treatment can reduce depression symptoms
Studies presented at this year's International Early Psychosis Association meeting in Milan, Italy, (Oct.
Is depression in parents, grandparents linked to grandchildren's depression?
Having both parents and grandparents with major depressive disorder was associated with higher risk of MDD for grandchildren, which could help identify those who may benefit from early intervention, according to a study published online by JAMA Psychiatry.
Postpartum depression least severe form of depression in mothers
Postpartum depression -- a household term since actress Brooke Shields went public in 2005 about her struggle with it -- is indeed serious.
Tropical Depression 1E dissipates
Tropical Depression 1E or TD1E didn't get far from the time it was born to the time it weakened to a remnant low pressure area along the southwestern coast of Mexico.
Diagnosing depression before it starts
MIT researchers have found that brain scans may identify children who are vulnerable to depression, before symptoms appear.
Men actually recommend getting help for depression
Participants in a national survey read a scenario describing someone who had depressed symptoms.
Depression too often reduced to a checklist of symptoms
How can you tell if someone is depressed? The Diagnostic and Statistical Manual of Mental Disorders (DSM) -- the 'bible' of psychiatry -- diagnoses depression when patients tick off a certain number of symptoms on the DSM checklist.

Related Depression Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Don't Fear Math
Why do many of us hate, even fear math? Why are we convinced we're bad at it? This hour, TED speakers explore the myths we tell ourselves and how changing our approach can unlock the beauty of math. Guests include budgeting specialist Phylecia Jones, mathematician and educator Dan Finkel, math teacher Eddie Woo, educator Masha Gershman, and radio personality and eternal math nerd Adam Spencer.
Now Playing: Science for the People

#517 Life in Plastic, Not Fantastic
Our modern lives run on plastic. It's in the computers and phones we use. It's in our clothing, it wraps our food. It surrounds us every day, and when we throw it out, it's devastating for the environment. This week we air a live show we recorded at the 2019 Advancement of Science meeting in Washington, D.C., where Bethany Brookshire sat down with three plastics researchers - Christina Simkanin, Chelsea Rochman, and Jennifer Provencher - and a live audience to discuss plastics in our oceans. Where they are, where they are going, and what they carry with them. Related links:...