Warning(s) in Force [Details] [Def]

Wind Alert [HKO link]

During the past 10 minutes ending at 03:40 HKT 31/7/2010:

Ngong Ping recorded STRONG force gusts (53 km/h - F7)

Ngong Ping recorded STRONG force mean wind (45 km/h - F6)

Earthquake Info

+M 6.2, off the east coast of the Kamchatka Peninsula, Russia

+M 4.7, Mindoro, Philippines

Weather Details around Hong Kong [Details] [HKO link]

Tropical Cyclone Information [Details] [HKO link]

Astronomical / Tidal Information [Details] [HKO link]

Info for 31/07/2010 (Saturday):

Astro. Info				Tide
Sunrise	:	05:55		00:55	1.6 m
Sunset	:	19:05		05:53	1.1 m
Moonrise	:	21:57		11:54	1.9 m
Moonset	:	10:00		18:27	0.8 m

Aug 03, 05:03 TDT: LAST QUARTER

Weather at a Glance [Details] [HKO link]

Data as of 03:40 on 31/7/2010

• In Brief
• Detailed

29.0 C	82 %	1007.0 hPa
All measurements taken at Hong Kong Observatory

HKO	Temp.:	29.0 C
	RH.:	82 %
	Apparent Temp.:	35.2 C (EXTREME CAUTION)
	Dew Point:	25.6 C
	Temp. of today:	29.5 / 29.0 C (Range 0.5 C)
	Mean SLP.:	1007.0 hPa
King's Park	Wind:	1 km/h (SW)
	UV:	N/A
	Rain:	0.0 mm (past 15 min)

Upper-Level Weather Information [Details]

Data as of 20:00 HKT on 30/7/2010 - Level of instability:

3-day Weather Forecast [Click for 7-day] [HKO link]

Data as of 16:30 HKT 30/Jul/2010

General Situation: A ridge of high pressure over the western Pacific is extending westwards. It will bring fine and hot weather to southeastern China over the weekend and early next week.

Date	31/7 (Sat)	1/8(Sun)	2/8(Mon)
Weather	Mainly fine apart from one or two showers.	Fine and hot apart from one or two isolated showers.	Fine and very hot.
Wind	S to SW force 3 to 4.	S to SE force 3 to 4.	Light winds force 2.
Temp.	27 - 32 °C	28 - 32 °C	28 - 33 °C
R.H.	70 - 95 %	70 - 90 %	65 - 90 %

Weather Conditions in South China Sea [Details] [HKO link]

Air Pollution Index [Details] [EPD link]

Data as of 03:45 on 31/7/2010

Forecast:	General Station:	15	to	40
	Roadside Station:	45	to	65

General Station			Roadside Station
Kwun Tong	32	NO2	Causeway Bay	59	NO2
Kwai Chung	29	RSP	Mong Kok	51	NO2
Tsuen Wan	29	NO2	Central	39	NO2
Sham Shui Po	27	NO2
Tai Po	24	RSP
Yuen Long	23	NO2	Key:
Sha Tin	19	NO2	Low [0-25]
Eastern	18	NO2	Medium [26-50]
Tap Mun	17	RSP	High [51-100]
Tung Chung	17	O3	Very High [101-200]
Central/Western	14	RSP	Severe [201-500]

Real-time Weather Photos [Details] [HKO link]

The following photo shows the real-time view of Victoria Harbour (active from 6am to 9pm), as viewed from Central towards the east.

Satellite / Radar Images [Details]

Radar: 256 km range	Radar: 128 km range	Radar: 64 km range	Satellite: IR imagery (03:03)*

* The Satellite imagery above is taken by MTSAT-1R operated by the Japan Meteorological Agency (JMA).

Aviation Weather Observation Report [HKO link]

Data as of 03:30 HKT on 31 Jul 10

Original code: METAR VHHH 301930Z 20007KT 9999 FEW015 29/25 Q1007 NOSIG=

Wind	Visibility	Weather	Cloud Amount	Cloud Base	Temperature	Dew Point	Pressure (QNH)
7 knots from 200 degrees (SSW)	10 km or above	No significant weather	1 to 2 oktas	1500 feet	29 oC	25 oC	1007 hPa

Next Two Hours Change

No Significant Change

Meteorological Calculation

A. Conversion between units Please select unit --------- Temperature --------- C     Celsius F     Fahrenheit K     Kelvin R     Rankine --------- Length --------- km     Kilometre mi     Statute Mile NM     Nautical Mile --     Degree of Latitude m     Metre ft     Foot --------- Speed --------- km/h     Kilometre per Hour m/s     Metre per Second mph     Statute Mile per Hour kt     Knot (Nautical Mile per Hour) --------- Direction --------- Degree(s) => Direction --------- Pressure --------- hPa/mb     Hectopascal/Millibar inHg     Inch of Mercury atm     Atmosphere mmHg     Torr

B. Calculation of distance between places on Earth Place 1:     Lat :   Long : Place 2:     Lat :   Long :

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