
TURKS AND
CAICOS
Maria
6:15 p.m. Eastern
Thursday
HAITI
DOMINICAN
REPUBLIC
Puerto Rico
(U.S.)
Image source: GOES-16 satellite image via NOAA

TURKS AND
CAICOS
Maria
6:15 p.m. Eastern
Thursday
HAITI
DOMINICAN
REPUBLIC
Puerto Rico
(U.S.)
Landfall at 6:15 a.m.
Eastern Wednesday

TURKS AND
CAICOS
Maria
6:15 p.m. Eastern
Thursday
HAITI
DOMINICAN
REPUBLIC
Puerto Rico
(U.S.)
Landfall at 6:15 a.m.
Eastern Wednesday
Hurricane Maria made landfall as a Category 4 storm Wednesday morning in Puerto Rico, bringing winds at about 160 mph to an island that dodged the worst of Hurricane Irma’s destructive power just a few weeks ago.
[Capital Weather Gang: Tracking Maria]
The storm made landfall in Puerto Rico at about 6:15 a.m. near Yabucoa, a city of less than 40,000 along the island’s southeastern coast.
Maria is the fourth major hurricane in the 2017 season and the first Category 4 storm to make landfall on the island in more than 80 years.
Within 24 hours, Maria dumped more than two feet of rain in areas across the island, triggering massive flooding.
Heavy winds snapped palm trees, ripped roofs off houses and knocked out power for the entire island. They also toppled cellphone towers, leaving many residents without the ability to call for help or contact family members.
As of Thursday, the National Oceanic and Atmospheric Administration's 10-day forecast, which indicates the storm's possible predicted paths, mostly show Maria staying away from the U.S. East Coast.
However, several models project the storm could make its way along the coasts in the Mid-Atlantic region.
Hurricane Jose will play a key role in determining Maria’s final path. If Jose weakens too quickly, Maria could drift closer to the East Coast by next week.

UNITED
STATES
CUBA
Atlantic
Ocean
Puerto Rico
(U.S.)

Washington, D.C.
UNITED
STATES
Norfolk
Wilmington
Savannah
Jacksonville
Gulf of
Mexico
CUBA
Atlantic Ocean
HAITI
Dom.
Rep.
JAMAICA
Puerto Rico
(U.S.)

Washington, D.C.
UNITED
STATES
Gulf of
Mexico
CUBA
Atlantic Ocean
Puerto Rico
(U.S.)
High ocean temperatures in the Caribbean Sea provide the ideal condition for fueling tropical cyclones.
A sea surface temperature of at least 79.7 degrees Fahrenheit is necessary for tropical cyclones to develop, and the region is well above that threshold.



















Sea surface temperature
(degrees Fahrenheit)
71.6
87.8
79.7
Ideal conditions for fueling a hurricane
U.S.
500 MILES
Atlantic
Ocean
Gulf of
Mexico
Puerto Rico
(U.S.)
MEX.
Caribbean
Sea
Pacific
Ocean
Maria’s
path
VEN.
COL.

Sea surface temperature (degrees Fahrenheit)
71.6
87.8
79.7
Ideal conditions for fueling a hurricane
UNITED STATES
Cooler temperatures
left by Jose
Gulf of
Mexico
500 MILES
Atlantic
Ocean
Puerto Rico
(U.S.)
CUBA
MEX.
HAITI
DOM.
REP.
JAMAICA
Jose’s path
Caribbean
Sea
Pacific
Ocean
Maria’s path
VENEZUELA
COLOMBIA

Sea surface temperature (degrees Fahrenheit)
71.6
87.8
79.7
Ideal conditions for fueling a hurricane
UNITED STATES
Cooler temperatures
left by Jose
Gulf of
Mexico
500 MILES
MEXICO
Atlantic
Ocean
CUBA
Puerto Rico
(U.S.)
DOM.
REP.
HAITI
JAMAICA
Jose’s path
Caribbean
Sea
Pacific
Ocean
Maria’s path
VENEZUELA
COLOMBIA
Maria is now among the most intense hurricanes to make landfall within the United States and its territories, according to the National Hurricane Center.
When the storm hit Puerto Rico, its central air pressure was reported to be 917 millibars (mbar), putting it within the same strength field as Hurricane Andrew in 1992 (922 mbar) and Hurricane Dean (905 mbar) in 2007.
[Hurricane Maria churns through Caribbean as ravaged Puerto Rico takes stock of an 'island destroyed']
A hurricane’s strength is dependent on the air pressure at its center. The lower the pressure, the more energy the storm can generate, which means stronger winds.
The most intense hurricane to make landfall in the United States was the Labor Day storm in 1935 (892 mbar). Hurricane Wilma (882 mbar) in 2005 holds the record as the most intense hurricane ever recorded in the Atlantic basin.

Hurricane strengths at U.S. landfall since 1852
Storms that made landfall
Storms from 2017 season
Atmopheric
pressure
(mbar)
Category 4
or higher
1,000
980
STAN
(2005)
960
HARVEY
(Aug. 25)
SANDY
(2012)
940
920
Irma
(Sept. 10)
Maria
(Wednesday)
900
75
100
125
150
175
Wind speed (mph)
Note: Some storms are included more than once to reflect multiple landfalls.

Hurricane strengths at U.S. landfall since 1852
Storms that made landfall
Storms from 2017 season
1,000
Category 4
or higher
980
STAN
(2005)
960
Air pressure
(mbar)
SANDY
(2012)
HARVEY (Aug. 25)
940
ANDREW
(1992)
Irma
(Sept. 10)
920
KATRINA
(2005)
Maria
(Wednesday)
900
“LABOR DAY” (1935)
75
100
125
150
175
Wind speed (mph)
Note: Some storms are included more than once to reflect multiple landfalls.
Islands in the eastern Caribbean are still recovering from Hurricane Irma, which roared into the region as a Category 5 storm.
Some of those islands, including St. Croix, were hit again by Maria. The island took the brunt of Maria’s force, while the storm was a Category 5 and brought destructive 175 mph winds.
Puerto Rico missed Irma’s full force, but the storm still caused widespread power outages.

2017 Atlantic basin wind history
Tropical-storm force winds
Hurricane-force winds
500 MILES
Jose
Gert
Atlantic
Ocean
Harvey
Irma
Katia
Franklin
Maria
Pacific
Ocean
Note: Maria and Jose data as of 5 p.m. Thursday.

2017 Atlantic basin wind history
Tropical-storm force winds
Hurricane-force winds
500 MILES
Gert
Jose
Atlantic
Ocean
Harvey
Irma
Gulf of
Mexico
Katia
Franklin
Irma
Jose
Maria
Pacific
Ocean
Note: Maria and Jose data as of 5 p.m. Thursday

2017 Atlantic basin wind history
Tropical-storm force winds
Hurricane-force winds
500 MILES
Gert
Jose
Harvey
Irma
Atlantic Ocean
Gulf of
Mexico
Katia
Irma
Franklin
Jose
Pacific
Ocean
Maria
Note: Maria and Jose data as of 5 p.m. Thursday
Maria started as a tropical depression off the west coast of Africa.
As the system approached the Windward Islands, the storm quickly intensified from a Category 1 to a Category 5 in less than a day before it made landfall on the island of Dominica.
Laris Karklis, Denise Lu, Chris Alcantara, Tim Meko, John Muyskens and Gabriel Florit contributed to this report.
A previous version of this story incorrectly stated that Maria is the fourth major hurricane to make landfall in the U.S. It is the fourth major hurricane of the 2017 season, but the third to make landfall in the U.S.
About this story
Satellite imagery from GOES-16 imagery via NOAA. Hurricane path, wind history, barometric pressure and water temperature data from the National Hurricane Center. Sea surface temperature from NOAA Coral Reef Watch.
Originally published Sept. 20, 2017.
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