5
TUESDAY, NOVEMBER 13, 1984
TROPICAL STORM ROY FORMED NEAR GUAM ON OCTOBER 11. IT DISSIPATED ABOUT 400 NAUTICAL MILES NORTH OF GUAM TWO DAYS LATER.
TROPICAL STORM SUSAN DEVELOPED NEAR NANSHA ON OCTOBER 12. IT CROSSED THE VIETNAM COAST IN THE EVENING AND DEGENERATED INTO AN AREA OF LOW PRESSURE ABOUT 80 NAUTICAL MILES NORTH OF HO CHI MINH CITY EARLY ON OCTOBER 13.
TYPHOON THAD FORMED ABOUT 240 NAUTICAL MILES EAST SOUTHEAST OF GUAM ON OCTOBER 19. IT RECURVED NEAR IWO JIMA ON OCTOBER 21 AND BECAME AN EXTRATROPICAL CYCLONE OVER THE PACIFIC ON OCTOBER 24.
TYPHOON VANESSA DEVELOPED NEAR THE CAROLINE ISLANDS ON OCTOBER 23. IT PASSED NEAR GUAM ON OCTOBER 24 AND RECURVED SOUTH OF THE RYUKYUS ON OCTOBER 28. IT FINALLY BECAME AN EXTRATROPICAL CYCLONE MOVING TOWARDS THE ALEUTIAN ISLANDS ON OCTOBER 31.
SEVERE TROPICAL STORM WARREN FORMED OVER THE SOUTH CHINA SEA ON OCTOBER 23. IT MOVED NORTH NORTHWESTWARDS AT FIRST BUT BECAME SLOW-MOVING ABOUT 200 NAUTICAL MILES SOUTHEAST OF XISHA BETWEEN OCTOBER 25 AND 28.
WARREN MOVED EASTWARDS TOWARDS THE PHILIPPINES ON OCTOBER 28, DUE TO THE INFLUENCE OF TYPHOON VANESSA. IT REVERTED WESTWARDS ACROSS THE SOUTH CHINA SEA ON OCTOBER 29 AS VANESSA RECURVED AND MOVED AWAY NORTHEASTWARDS TOWARDS THE OGASAWARA ISLANDS. WARREN WAS ABOUT 200 NAUTICAL MILES SOUTH OF XISHA AND WAS MOVING WEST SOUTHWESTWARDS TOWARDS VIETNAM AT THE END OF THE MONTH.
DURING THE MONTH NO AIRCRAFT WERE DIVERTED FROM HONG KONG LUE TO ADVERSE WEATHER.
A THUNDERSTORM WARNING WAS ISSUED ON OCTOBER 4. A FLOOD WARNING AND A LANDSLIP WARNING WERE ISSUED ON OCTOBER 11. THE RED FIRE DANGER WARNING WAS IN EFFECT ON OCTOBER 3. 20 TO 22 AND 27 TO 29. THE YELLOW FIRE DANGER WARNING WAS IN EFFECT ON OCTOBER 7, 13, 14 AND 20.
THE ONLY SIGNAL HOISTED DURING THE MONTH WAS AS FOLLOWS:
SIGNAL
WEATHER SYSTEM
WINTER MONSOON
STRONG MONSOON
DATE AND TIME OF LOWERING
DATE AND TIME OF HOISTING
OCTOBER 31 12.05 AM
OCTOBER 31
6 AM
THE MONTH'S
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