..NEW TROPICAL DEPRESSION FORMS IN THE TROPICAL ATLANTIC...EXPECTED
TO PASS WELL NORTH OF THE LESSER ANTILLES...
AT 5 PM AST...2100Z...THE CENTER OF NEWLY FORMED TROPICAL DEPRESSION
THIRTEEN WAS LOCATED NEAR LATITUDE 15.4 NORTH...LONGITUDE 46.8
WEST OR ABOUT 965 MILES...1555 KM...EAST OF THE LESSER ANTILLES.
THE DEPRESSION IS MOVING TOWARD THE WEST-NORTHWEST NEAR 13 MPH
...20 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE
NEXT 24 HOURS.
MAXIMUM SUSTAINED WINDS ARE NEAR 30 MPH...45 KM/HR...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24
HOURS.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB...29.74 INCHES.
REPEATING THE 5 PM AST POSITION...15.4 N... 46.8 W. MOVEMENT
TOWARD...WEST-NORTHWEST NEAR 13 MPH. MAXIMUM SUSTAINED
WINDS... 30 MPH. MINIMUM CENTRAL PRESSURE...1007 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
11 PM AST.
NOAA Advisory #1 for Tropical Depression 13:
http://www.nhc.noaa.gov/text/refresh/MIATCPAT3+shtml/282022.shtmlFor NOAA list of Current Hurricanes see:
http://www.nhc.noaa.gov/index.shtml?From NOAA:
"The terms "hurricane" and "typhoon" are regionally specific names for a strong "tropical cyclone". A tropical cyclone is the generic term for a non-frontal synoptic scale low-pressure system over tropical or sub-tropical waters with organized convection (i.e. thunderstorm activity) and definite cyclonic surface wind circulation (Holland 1993).
Tropical cyclones with maximum sustained surface winds of less than 17 m/s (34 kt, 39 mph) are called "tropical depressions" ....
Once the tropical cyclone reaches winds of at least 17 m/s (34 kt, 39 mph) they are typically called a "tropical storm" and assigned a name. If winds reach 33 m/s (64 kt, 74 mph)), then they are called:
* "hurricane" (the North Atlantic Ocean, the Northeast Pacific Ocean east of the dateline, or the South Pacific Ocean east of 160E)
* "typhoon" (the Northwest Pacific Ocean west of the dateline)
* "severe tropical cyclone" (the Southwest Pacific Ocean west of 160E or Southeast Indian Ocean east of 90E)
* "severe cyclonic storm" (the North Indian Ocean)
* "tropical cyclone" (the Southwest Indian Ocean)
http://www.aoml.noaa.gov/hrd/tcfaq/A1.html