Tropical Depression Nine Dissipates

By: Dr. Jeff Masters, 1:45 PM GMT on October 23, 2014

Small and weak Tropical Depression Nine dissipated over Mexico's Yucatan Peninsula Wednesday night, shortly after making landfall near 8 pm EDT Wednesday October 22, 2014 on the western shore of the peninsula. Mexican radar out of Sabancuy and satellite loops show that ex-TD 9 is bringing some heavy rains to the Yucatan Peninsula, Belize, Guatemala, and the adjacent waters, and this activity will continue into the weekend. By Saturday, some of the spin associated wi...

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Tropical Depression Nine Forms in Gulf of Mexico

By: Dr. Jeff Masters, 1:56 PM GMT on October 22, 2014

Tropical Depression Nine has formed in the Gulf of Mexico's Bay of Campeche, and will bring dangerous heavy rains of 5 - 10 inches to Mexico's Yucatan Peninsula the next two days. Satellite loops show that TD 9 has only a small amount of heavy thunderstorms near its center, and these thunderstorms are poorly organized, due to high wind shear of 20 - 30 knots. Mexican radar out of Sabancuy showed only one spiral band associated with the storm. Dry air from Mexico flo...

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Updated: 7:55 PM GMT on October 22, 2014

Gulf of Mexico's 93L a Heavy Rain Threat; Ana Leaves Hawaii Alone

By: Dr. Jeff Masters, 3:25 PM GMT on October 21, 2014

An area of low pressure over the Gulf of Mexico's Bay of Campeche (93L) contains moisture and spin from the Eastern Pacific's Tropical Storm Trudy, which made landfall near Acapulco last weekend. 93L will bring heavy rains to Mexico's Yucatan Peninsula, Western Cuba, and South Florida Wednesday through Friday. Satellite loops show the low has a moderate degree of spin and plenty of heavy thunderstorm activity, but these thunderstorms are poorly organized, due to hi...

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Earth Headed For its Hottest Year on Record After a Record-Warm September

By: Dr. Jeff Masters, 5:38 PM GMT on October 20, 2014

September 2014 was Earth's warmest September on record, the period January - September was tied with 1998 and 2010 as the warmest first three-quarters of any year on record, and the past 12 months--October 2013 through September 2014--was the warmest consecutive 12-month period among all months since records began in 1880, said NOAA's National Climatic Data Center (NCDC) today. NASA also rated September 2014 as the warmest September on record. If 2014 maintains the ...

Climate Summaries

Updated: 9:04 PM GMT on October 22, 2014

Gulf of Mexico's 93L a Heavy Rain Threat; 92L Kills 5 in Canary Islands

By: Dr. Jeff Masters, 3:29 PM GMT on October 20, 2014

Moisture from Tropical Storm Trudy, which made landfall on the Pacific coast of Mexico about 75 miles east-southeast of Acapulco on Saturday morning, has moved northwards across Mexico into the southern Gulf of Mexico's Bay of Campeche. A large area of low pressure (93L) is forming there, and will bring heavy rains to Mexico's Yucatan Peninsula, Western Cuba, and South Florida on Wednesday through Friday. Satellite loops show the low has plenty of heavy thunderstor...

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About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.