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Dolly made landfall just south of Tampico, Mexico Tuesday night and will continue as a tropical rainstorm over northeastern Mexico through the middle of the week.
While seas and surf will diminish beyond Wednesday, torrential rainfall will continue over northeastern Mexico into Thursday and Friday.
Further interaction with land and increasing mountainous terrain will cause Dolly to break up, but moisture will continue to drift northwestward.
Kottlowski warns that the system will bring the risk of life threatening flash flooding and mudslides in the foothills and higher terrain of the Sierra Madre Oriental Mountains, regardless of how strong the system is.
More than a foot of rain can fall on the foothills and mountains in the Mexico states of Tamaulipas, San Luis Potosi, Hildalgo and Nuevo Leon.
Major cities in Mexico that can be affected include Monterrey, Ciudad Victoria, Tampico and La Pesca.
The Texas cities of Brownsville, McAllen, Harlingen and Laredo will also capture some of Dolly's drenching rainfall. Spotty showers and thunderstorms will reach as far to the north as Del Rio, Corpus Christi and San Antonio, Texas.
On a positive note, much of the area from the Yucatan Peninsula to northeastern Mexico, South Texas and the Southwest states is in need of rain.
Downpours affected the Yucatan Peninsula and part of Central America this weekend, where rainfall has been well below average this year so far.
The combination of rain from Dolly and Norbert are projected to bring rain to the southwestern U.S. and part of California late this week.
In terms of the 2014 Atlantic hurricane season, the year so far has been running slower than average in some cases and ahead of average in others.
Excluding Dolly, there have been four other tropical depressions in the Atlantic, of which three strengthened and became hurricanes.
The average date for the fourth named system is Aug. 23. However, the average date for the third hurricane of the season is Sept. 9. Cristobal became the season's third hurricane on Aug. 24.
The last time it has taken this long to get to the letter "D" in storm names was in 1994, when Debby formed on Sept. 9.
AccuWeather Meteorologists Alex Sosnowski and Jordan Root contributed content to this story.
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