The last 2 years have seen a very quiet hurricane season, but the Atlantic is showing some activity in a few tropical waves, and now tropical depression number 4. The pre-formations to hurricanes start with the tropical waves that come off the African coast, to low pressure systems, to tropical depressions, tropical storms, then to a hurricane. As ham radio operators we should at least be aware of the current activity provided by the National Hurricane Center. No activity will show on the main page until a storm is named, but the real activity is located on the link for tropical weather outlook, which can also be plugged into your google reader or other rss reader. This information on this page is what will later become the active storms that may effect the southern U.S. or Caribbean.
The latest information right now is:
WTNT34 KNHC 131454
TROPICAL DEPRESSION FOUR ADVISORY NUMBER 1
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL042007
1100 AM EDT MON AUG 13 2007
…FOURTH DEPRESSION OF THE SEASON FORMS IN THE FAR EASTERN
AT 1100 AM EDT…1500Z…THE CENTER OF TROPICAL DEPRESSION FOUR WAS
LOCATED NEAR LATITUDE 12.0 NORTH…LONGITUDE 31.6 WEST OR ABOUT 520
MILES…840 KM…WEST-SOUTHWEST OF THE SOUTHERNMOST CAPE VERDE
ISLANDS AND ABOUT 2000 MILES…3220 KM…EAST OF THE LESSER
THE DEPRESSION IS MOVING TOWARD THE WEST NEAR 21 MPH…AND THIS
GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS.
MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH…55 KM/HR…WITH HIGHER
GUSTS. SOME STRENGTHENING IS FORECAST…AND THE DEPRESSION COULD
BECOME A TROPICAL STORM DURING THE NEXT 24 HOURS.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 1005 MB…29.68 INCHES.
REPEATING THE 1100 AM EDT POSITION…12.0 N…31.6 W. MOVEMENT
TOWARD…WEST NEAR 21 MPH. MAXIMUM SUSTAINED WINDS…35 MPH.
MINIMUM CENTRAL PRESSURE…1005 MB.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 PM EDT.
information provided by noaa