SUNDAY, JUNE 15, 1986
LOLA FORMED ABOUT 1 780 KM EAST-SOUTHEAST OF GUAM EARLY ON MAY 17. IT WAS MOVING SLOWLY AT FIRST AND INTENSIFIED RAPIDLY TO A TYPHOON THE NEXT DAY. LOLA TOOK A NORTHWESTERLY TRACK ON MAY 19 BUT TURNED NORTHWARDS ON MAY 21 OVER THE PACIFIC ABOUT 800 KM NORTHEAST OF GUAM. IT TURNED NORTHEASTWARDS EARLY ON MAY 22 AND PASSED ABOUT 290 KM NORTHWEST OF MARCUS ISLAND ON THE SAME DAY. LOLA BECAME EXTRATROPICAL ON MAY 23 WHILE ACCELERATING NORTHEASTWARDS TOWARDS THE ALEUTIAN ISLANDS,
TROPICAL STORM MAC FORMED OVER THE NORTHERN PART OF THE SOUTH CHINA SEA ABOUT 190 KM SOUTHWEST OF DONGSHA ON MAY 23. IT MOVED EASTWARDS INITIALLY BUT TURNED NORTH-NORTHEASTWARDS OVER THE BASHI CHANNEL NEAR BATAN ON MAY 26, MAC BECAME ALMOST STATIONARY IN THE EVENING OF MAY 27 ABOUT 180 KM SOUTHEAST OF TAIPEI, IT THEN ADOPTED A EAST-NORTHEAST COURSE ON MAY 28. AFTER PASSING TO THE SOUTH OF THE RYUKYU ISLANDS, MAC DISSIPATED ABOUT 370 KM EAST- SOUTHEAST OF OKINAWA LATE ON MAY 29.
DURING THE MONTH, ONE AIRCRAFT WAS DIVERTED FROM HONG KONG DUE TO ADVERSE WEATHER, THUNDERSTORM WARNINGS WERE ISSUED ON MAY 2, 3, 6, 11, 12, 13, 14
12, 13, 14, 30 AND 31. FLOOD WARNINGS WERE ISSUED ON MAY 11, 12 AND 14. AʼLANDSLIP WARNING WAS ISSUED ON MAY 12.
SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
DATE AND TIME OF LOWERING
WEATHER SYSTEM
SIGNAL
DATE AND TIME OF HOISTING
WINTER MONSOON STRONG MONSOON
WINTER MONSOON STRONG MONSOON
MAY 18
MAY 14 10,00 PM
1.10 AM
MAY 15
2.30 AM
MAY 18 11.00 PM
WINTER MONSOON STRONG MONSOON
MAY 21
3.20 PM
MAY 23
6.13 AM
THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL WERE:
SUNSHINE
147.8 HOURS 14.8 HOURS BELOW NORMAL
=
WERE
RA INFALL
CLOUD INESS
RELATIVE HUMIDITY
378.7 MM -
80.6 MM ABOVE NORMAL
769%
3% MORE THAN NORMAL
84%
1% HIGHER THAN NORMAL
MEAN MAXIMUM TEMPERATURE 28.4 DEGREES C =
MEAN TEMPERATURE
MEAN MINIMUM TEMPERATURE
MEAN DEW POINT
TOTAL EVAPORATION
0.5 DEGREE C BELOW NORMA.
25.9 DEGREES C = 0.1 DEGREE C ABOVE NORMAL
24.2 DEGREES C = 0.3 DEGREE C ABOVE NORMAL
23.0 DEGREES C
116.4 MM
=
3.3 DEGREE C ABOVE NORMAL
30.0 MM BELOW NORMAL