Monday, May 15, 2006

TYPHOON CHANCHU [CALOY/02W/0601] #12


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Typhoon2000 STORM UPDATE #12
Name: TYPHOON CHANCHU [CALOY/02W/0601]
Issued: 7:00 PM MANILA TIME (11:00 GMT) SUN 14 MAY 2006
Next Update: 7:00 AM (23:00 GMT) MON 15 MAY 2006
Source: JTWC TROPICAL CYCLONE WARNING #023
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CHANCHU (CALOY) STILL GAINING STRENGTH...NOW A CATEGORY THREE
TYPHOON WITH WINDS OF 185 KM/HR
...HONG KONG UNDER A POSSIBLE
THERAT.

+ FORECAST OUTLOOK: The core of CHANCHU is expected to continue
moving West to WNW across the South China Sea today, before taking
a sharp NNW to Northward track in response to an approaching mid-
latitude low pressure located over Western China. The three-day
forecast still shows the system becoming a Super Typhoon (with
1-min. sustained winds of 250 kph, Category 5) before striking
and making landfall near Hong Kong, China around night time
Thursday (May 17).


+ EFFECTS: CHANCHU's core (eye + eyewall) remains over the South
China Sea with its outer rainbands covering almost the entire South
China Sea and Western Philippines. These rainbands will continue to
bring moderate to heavy rainfall with moderate to strong winds, and
could produce life-threatening flash floods and mudslides along
river banks, low-lying areas and mountain slopes over the affected
areas. Residents residing along the coastal beachfront areas of
Palawan, Western Luzon & Western Visayas are advised to seek higher
grounds due to possible high waves from the sea. Coastal Storm Surge
flooding of up to 9 to 12 feet can be expected along the path of
CHANCHU advising all sea vessels to remain at port and avoid
passing over it
.


+ CURRENT MONSOON INTENSITY: This storm is still enhancing the
Southwest Monsoon bringing moderate to heavy rains along Western
sections of Visayas and Mindanao. These rains may produce life-
threatening flash floods and mudslides along river banks, low-
lying areas and mountain slopes of the affected areas.


Important Note: Please keep in mind that the above forecast outlook,
effects & current monsoon intensity changes every 06 to 12 hours!
_______________________________________________________________________

TIME/DATE: 5:00 PM MANILA TIME (09:00 GMT) 14 MAY
LOCATION OF CENTER: LATITUDE 14.0º N...LONGITUDE 116.2º E
DISTANCE 1: 520 KM (280 NM) WSW OF METRO MANILA, PH
DISTANCE 2: 450 KM (243 NM) WSW OF SUBIC BAY, PH
DISTANCE 3: 945 KM (510 NM) SSE OF HONG KONG, CHINA
MAX SUSTAINED WINDS [1-MIN AVG]: 185 KM/HR (100 KTS)
PEAK WIND GUSTS: 230 KM/HR (125 KTS)
MINIMUM CENTRAL PRESSURE (est.): 944 MILLIBARS (hPa)
MAX WAVE HEIGHT**: 34 FEET (10.3 METERS)
SAFFIR-SIMPSON SCALE: CATEGORY 3
RECENT MOVEMENT: WEST @ 19 KM/HR (10 KTS)
GENERAL DIRECTION: SOUTH CHINA SEA
STORM'S SIZE (IN DIAMETER): 1,000 KM (540 NM)/VERY LARGE
VIEW T2K TRACKING MAP: 5 PM SUN MAY 14
TSR WIND PROBABILITIES: CURRENT TO 120 HRS LEAD


PHILIPPINE STORM SIGNALS*:
#01 - LUBANG ISLAND, BATAAN, AND ZAMBALES.

09-21 HR. FORECAST:
> 2 AM (18 GMT) 15 MAY: 14.2N 115.4E / 205-250 KPH
> 2 PM (06 GMT) 15 MAY: 15.1N 114.5E / 220-270 KPH

REMARKS: 2 PM (06 GMT) 14 MAY POSITION: 13.9N 116.5E.
^ UPPER AIR OBSERVATIONS AND CLOUD TRACK WINDS INDICATE THE
SUBTROPICAL HIGH PRESSURE RIDGE ANCHORED OVER SOUTHEASTERN CHINA
IS BEGINNING TO SPLIT UNDER THE INFLUENCE OF MID-LATITUDE
LOW-PRESSURE TROUGH OVER CENTRAL CHINA. A WEAK RIDGE REMAINS
TO THE WEST OF THE STORM BUT IS EXPECTED TO WEAKEN FURTHER
IN RESPONSE TO A DEVELOPING SHORTWAVE TROUGH OVER THE GANGES
RIVER DELTA REGION. RIDGING IS EXPECTED TO REBUILD TO THE
EAST OF TY 02W AND STEER THE STORM TO THE NORTH OVER THE
NEXT 12 TO 24 HOURS. TY CHANCHU IS EXPECTED TO MAKE LANDFALL
IN THE
VICINITY OF HONG KONG NEAR 96 HOURS AND DISSIPATE
RAPIDLY OVER LAND. THE EUROPEAN MODELS (EGRR AND ECMWF) ARE
DEPICTING AN ALTERNATE FORECAST SCENARIO IN WHICH A STRONGER
MIDLATITUDE TROUGH BREAKS DOWN THE SUBTROPICAL RIDGE TO THE
EAST OF THE SYSTEM AND CAUSES TY 02W TO RECURVE BEFORE MAKING
LANDFALL AND TRACK FURTHER EAST TOWARD THE TAIWAN
STRAIT.
. (more info)

>> CHANCHU {pronounced: chan~chu}, meaning: Pearl, a smooth,
rounded lustrous deposit formed in the shells of certain
oysters and is often used for jewelry. Many Macau souvenirs
are made of it. Name contributed by: Macau, China

_______________________________________________________________________

PAGASA CURRENT POSITION, MOVEMENT AND INTENSITY (10-min. ave.):
> 4 PM (06 GMT) 14 MAY: 14.3N 116.4E / WNW @ 13 KPH / 130 kph

:: For the complete PAGASA bulletin, kindly visit their website at:
http://www.pagasa.dost.gov.ph/wb/tcupdate.shtml
_________________________________________________________________________________
RECENT MTSAT-1R SATELLITE IMAGE:


> Image source: Digital-Typhoon.org (Nat'l. Institute of Informatics) (http://www.digital-typhoon.org)
__________________________________________________________________________________________

LATEST T2K TRACKING CHART
:


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NOTES:
^ - JTWC commentary remarks (for Meteorologists) from their latest warning.
* - Based on PAGASA's Philippine Storm Warning Signals, # 4 being the
highest. Red letters indicate new areas being hoisted. For more
explanations on these signals, visit:
http://www.typhoon2000.ph/signals.htm

** - Based on the Tropical Cyclone's Sea Wave Height near its center.
__________________________________________________________________________________________

>>
To know the meteorological terminologies and acronyms used on
this update visit the ff:

http://typhoon2000.ph/tcterm.htm
http://www.nhc.noaa.gov/aboutgloss.shtml
http://www.srhnoaa.gov/oun/severewx/glossary.php
http://www.srh.weather.gov/fwd/glossarynation.html
http://www.nhc.noaa.gov/acronyms.shtml
__________________________________________________________________________________________

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For the complete details on the TY CHANCHU (CALOY)...go visit our website @:

>
http://www.typhoon2000.com
> http://www.maybagyo.com

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