Skip to main content
Hong Kong Observatory Brand Hong Kong - Asia's world city
GovHK Traditional Chinese Simplified Chinese Search Search Site Map Contact Us
Print Version
Back
Print Version

Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 17/SEP/2014
(Next update at 09:30 HKT 17/SEP/2014)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     SEV TURB AND SEV GUSTS.  GALE FORCE WINDS.
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 1 A.M., TYPHOON KALMAEGI WAS CENTRED NEAR
     21.3 DEGREES NORTH 107.2 DEGREES EAST AND IS
     FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 14
     KNOTS, MOVING INLAND OVER THE NORTHERN PART OF
     VIETNAM AND WEAKENING GRADUALLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  130/20, 25-30 AT FIRST
                  TEMPO VRB/25G40 IN TS
       OFFSHORE:  130/25-30, UP TO 40 AT FIRST         29-32
   B.   2000 FT:  150/25-30, 40G60 AT FIRST            23
   C.   5000 FT:  140/30, UP TO 50 AT FIRST            18
   D.  10000 FT:  150/35, UP TO 50 AT FIRST            10
   E.  18000 FT:  160/35, UP TO 55 AT FIRST            MS3
   F.  24000 FT:  120/40, UP TO 50 AT FIRST            MS12
   G.  30000 FT:  120/40                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY. THERE WILL BE SQUALLY SHOWERS
      AND A FEW THUNDERSTORMS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2000 FT  TEMPO FEW CB 800 FT
      SCT 1500 FT  BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 3000 M IN SHOWERS.  TEMPO 1500 M IN TS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     FRESH SOUTHEASTERLY WINDS,  STRONG OFFSHORE AND
     ON HIGH GROUND. SHOWERS WILL EASE OFF LATER WITH
     SUNNY INTERVALS.=
===================================================================
Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
===================================================================
Aviation Weather Observation and Forecast Information for Hong Kong International Airport
To know more about clouds, please see Commonly observed clouds in Hong Kong.

Last revision date: <17 Sep 2014>