Tropical Depression Nine Forms in the Gulf
Oct 22, 2014 3:11 AM
An area of disturbed weather in the Bay of Campeche finally became organized enough to warrant an upgrade to Tropical Depression Nine late Tuesday evening.
Tropical Depression Nine will slowly track eastward over the next 12 to 24 hours before making landfall on Mexico's Yucatan Peninsula this evening. Despite its close proximity to land, the Gulf waters are very warm with temperatures well into the 80s. Thus, Tropical Depression Nine should strengthen into Tropical Storm Hanna before making landfall.
The main impact across the Yucatan over the next several days will be heavy rainfall that can cause flash flooding. After Hanna crosses the Yucatan, it should weaken back into a tropical depression as it then enters the northwestern Caribbean sometime on Friday.
Beyond this time, Hanna should continue to drift eastward or even slightly south of east as it tracks across the western Caribbean, likely remaining south of Cuba.
Elsewhere across the basin, a tropical wave will move through the Windward Islands Wednesday and Thursday, but strong wind shear will keep this feature from developing.
The area of low pressure near the Azores and Canary Islands continues to drift westward. Thunderstorms associated with this feature are not wrapping around the center of circulation and it remains a non-tropical system.
By AccuWeather.com Senior Meteorologist Dan Pydynowski and Meteorologist Steve Travis
Atlantic Basin Maps
National Hurricane Center Outlook
332 ABNT20 KNHC 220529 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT WED OCT 22 2014 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on newly formed Tropical Depression Nine, located over the Bay of Campeche. A large non-tropical low located over the far eastern Atlantic Ocean, a few hundred miles south of the Azores, is producing disorganized thunderstorms and winds to gale force. This system could still acquire some subtropical characteristics during the next day or so while it moves westward to west-southwestward at 10 to 15 mph. Upper-level winds are forecast to become less conducive for subtropical or tropical cyclone formation by tonight, and development after that time is not likely. Additional information on this system can be found in High Seas Forecasts issued by Meteo France. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...10 percent. && Public Advisories on Tropical Depression Nine are issued under WMO header WTNT34 KNHC and under AWIPS header MIATCPAT4. Forecast/Advisories on Tropical Depression Nine are issued under WMO header WTNT24 KNHC and under AWIPS header MIATCMAT4. High Seas Forecasts issued by Meteo France can be found under WMO header FQNT50 LFPW. $$ Forecaster Pasch
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