NASA eyes warm sea surface temperatures for hurricanes

August 17, 2007
Warm Sea Surface Temps Help Fuel Storms
This image combines data from various NASA satellites and shows sea surface temperatures (80F or higher) warm (orange areas) enough to power tropical cyclones. The darker the orange color, the warmer the water. Credit: NASA/SVS

Sea surface temperatures are one of the key ingredients for tropical cyclone formation and they were warming up in the Gulf of Mexico, Caribbean and eastern Atlantic Ocean by the middle of August. As a result, they helped spawn Hurricane Dean in the central Atlantic, and Tropical Storm Erin in the Gulf of Mexico, both during the week of August 13.

By late June, sea surface temperatures in the Gulf of Mexico were all over 80 degrees Fahrenheit. That's one thing that hurricane forecasters watch for because sea surface temperatures of 80 degrees Fahrenheit or warmer are needed to power tropical depressions into tropical storms and grow them into hurricanes.

These areas or warm sea surface waters (80 degrees F or higher) are depicted in yellow, orange, and red. This data was taken by the Advanced Microwave Scanning Radiometer - EOS (AMSR-E) instrument aboard the Aqua satellite. This animation updates every 24 hours.

This animation shows the progression of warm waters slowly filling the Gulf of Mexico (shown in yellow, orange, and red). This natural annual warming contributes to the possible formation of hurricanes in the Gulf. Sea surface temperature data shown here ranges from January 1, 2007 to the present.

NASA's Bill Patzert, oceanographer at the Jet Propulsion Laboratory, Pasadena, Calif. said, "The many Atlantic and Gulf citizens still reeling from the shock of the 2004 and 2005 Atlantic hurricane seasons, received some good news … the Atlantic sea surface temperatures that fuel hurricanes are somewhat cooler than the past few years. Based on this, some forecasters have reduced their forecasts. But the news is mixed."

When asked what factors forecasters are watching, Patzert said "The jet stream has remained stubbornly north, the possibility of a late-developing La Nina is lurking and Gulf of Mexico and Caribbean sea surface temperatures are ripe for late-season hurricane development."

While the experts debate, Gulf and Atlantic coast residents should definitely be prepared. A forecast for an above or below average hurricane season is just an academic exercise if a community is hit.

Hurricane season ends on November 30.

Source: NASA/Goddard Space Flight Center

Explore further: Mississippi mud may hold hope for Louisiana coast

Related Stories

Mississippi mud may hold hope for Louisiana coast

July 14, 2017

Many studies say capturing Mississippi River sand through diversions is key to rebuilding Louisiana's vanishing coast. But a new study in the open-access journal Earth Surface Dynamics of an old levee breach, or crevasse, ...

Collapse of the European ice sheet caused chaos

June 27, 2017

Scientists have reconstructed in detail the collapse of the Eurasian ice sheet at the end of the last ice age. The big melt wreaked havoc across the European continent, driving home the original Brexit 10,000 years ago.

'Perfect storm' led to 2016 Great Barrier Reef bleaching

July 3, 2017

Researchers from James Cook University and the Université catholique de Louvain, Louvain-la-Neuve, Belgium say unprecedented oceanographic conditions in 2016 produced the perfect storm of factors that lead to a mass coral ...

Recommended for you

Rush hour pollution may be more dangerous than you think

July 21, 2017

The first in-car measurements of exposure to pollutants that cause oxidative stress during rush hour commutes has turned up potentially alarming results. The levels of some forms of harmful particulate matter inside car cabins ...

Mountain glaciers recharge vital aquifers

July 21, 2017

Small mountain glaciers play a big role in recharging vital aquifers and in keeping rivers flowing during the winter, according to a new study published in Geophysical Research Letters, a journal of the American Geophysical ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.