Latest Message

(2020/01/16 14:15 HKT)

The "Astronomical, Geographic and Meteorological Events of 2019" has concluded. Thank you for your support. A total of 80 votes were received this year, and the top three events are listed below:

• Rank #1: Cyclone WIPHA became the tropical cyclone farthest away from HK in decades to necessitate the #8 Signal (53 votes; 66.25%)
• Rank #2: At 11.4 degrees, January 1 was the only cold day in 2019 (51 votes; 63.75%)
• Rank #3: The winter of 2018-19 was the warmest on record in Hong Kong (49 votes; 61.25%)

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

  

+Click to view cold/very cold places

Earthquake Info

+M 6.1 - 57km SE of East End, Cayman Islands

+M 7.7 - 125km NNW of Lucea, Jamaica

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

Tropical Cyclone Information [Details] [HKO link]

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

The following photo shows the real-time view of Victoria Harbour, as viewed from Central towards the east.

Astronomical / Tidal Information [Details] [HKO link]

Info for 29/01/2020 (Wednesday):

Astro. Info				Tide
Sunrise	:	07:03		06:16	0.66 m
Sunset	:	18:09		13:28	1.49 m
Moonrise	:	09:53		17:28	1.19 m
Moonset	:	21:55		23:35	2.04 m

Jan 30, 05:28 HKT: Moon Apogee: 405400 km

Feb 02, 09:42 HKT: First Quarter

Weather at a Glance [Details] [HKO link]

Data as of 13:40 on 29/1/2020

• In Brief
• Detailed

15.2 C	43 %	1019.3 hPa
All measurements taken at Hong Kong Observatory

HKO	Temp.:	15.2 C
	RH.:	43 %
	Apparent Temp.:	15.2 C
	Dew Point:	2.7 C
	Temp. of today:	16.5 / 11.0 C (Range 5.5 C)
	Mean SLP.:	1019.3 hPa
King's Park	Wind:	10 km/h (N)
	UV:	4 (Moderate)
	Rain:	0.0 mm (past 15 min)

Upper-Level Weather Information [Details]

Data as of 08:00 HKT on 29/1/2020 - Level of instability:

Delta P Values

At 2020/01/29 11 HKT: [Explanation] [Values for the past 10 days]

Delta p(972) = 6.1 (15-18 hours)
Delta p(S) = 0.9

3-day Weather Forecast [Click for 9-day] [HKO link]

Data as of 11:30 HKT 29/Jan/2020

General Situation: The winter monsoon will continue to bring cold and dry weather to southern China in the next couple of days. It will be generally fine over the region. Temperature difference between day and night will be relatively large over inland areas. An easterly airstream is expected to affect the coast of Guangdong during the weekend to early next week. Temperatures will rise and it will become cloudier gradually over the region. Another surge of the monsoon will bring cooler weather to southern China midweek next week.

Date	30/1 (Thu)	31/1(Fri)	1/2(Sat)
Weather	Fine. Cold in the morning. Very dry during the day.	Fine and dry. Cold in the morning.	Sunny periods. Cool in the morning.
Wind	N to NE force 3 to 4, occasionally force 5 offshore at first.	E to NE force 4, force 5 offshore later.	E force 4 to 5.
Temp.	11 - 18 °C	12 - 18 °C	14 - 18 °C
R.H.	35 - 70 %	45 - 75 %	65 - 85 %

Extended Temperature Outlook [HKO link]

Maximum temperature:

Minimum temperature:

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

Satellite / Radar Images [Details]

Radar: 256 km range	Radar: 128 km range	Radar: 64 km range	Satellite: IR imagery*

* The Satellite imagery above is taken by Himawari-8 operated by the Japan Meteorological Agency (JMA).

Aviation Weather Observation Report [HKO link]

Data as of 13:30 HKT on 29 Jan 20

Original code: METAR VHHH 290530Z 33009KT 300V360 CAVOK 14/01 Q1020 NOSIG=

Wind	Visibility	Weather	Cloud Base	Temperature	Dew Point	Pressure (QNH)
9 knots from 330 degrees (NNW), variability: 300-360 degrees	10 km or above	No significant weather	No cloud below 5000 feet, no cumulonimbus.	14 oC	1 oC	1020 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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