for Sunday, 29 May 2011 [1:24 PM PhT]
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Typhoon2000 (T2K) NEWS (Sunday May 29 2011):
Currently issuing 6-hrly web, twitter, SMS and e-mail updates (except 12:00 Midnight) on TS SONGDA (CHEDENG).
SONGDA (CHEDENG) MAX WIND SPEED PER AGENCY:
+ USA (JTWC/1-min avg): 100 km/hr
+ Japan (JMA/10-min avg): 110 km/hr
+ Korea (KMA/10-min avg): 110 km/hr
+ Taiwan (CWB/10-min avg): 105 km/hr
+ Beijing (NMC/2-min avg): 95 km/hr
+ Hong Kong (HKO/10-min avg): 110 km/hr
:: Click here to see Multi-Agency Forecast Tracks
TROPICAL STORM SONGDA [CHEDENG/04W/1102]
T2K PUBLIC ADVISORY NUMBER 030
12:00 PM PhT (04:00 GMT) Sun 29 May 2011
Sources: T2K Extrap Analysis/JTWC Warning #036/SatFixes
View: Advisory Archives (2004-2011)
Tropical Storm SONGDA (CHEDENG) continues to transition into an Extratropical Cyclone...now passing fast across the Southern Coast of Shikoku, on its way to Honshu's coastline.
Residents and visitors along the Southern Coast of Japan (Kyushu-Shikoku-Honshu) should closely monitor the progress of SONGDA (CHEDENG).
Do not use this for life or death decision. This advisory is intended for additional information purposes only. Kindly refer to your country's official weather agency for local warnings, advisories & bulletins.
CURRENT STORM INFORMATION
Time/Date: 12:00 PM PhT Sun May 29 2011
Location of Center: 32.2º N Lat 133.6º E Lon
Distance 1: 145 km (78 nm) South of Kochi, Japan
Distance 2: 300 km (162 nm) ENE of Kagoshima, Japan
Distance 3: 450 km (243 nm) WSW of Nagoya, Japan
Distance 4: 685 km (370 nm) WSW of Tokyo, Japan
MaxWinds (1-min avg): 95 kph (50 kts) near the center
Peak Wind Gusts: 120 kph (65 kts)
Present Movement: NE @ 55 kph (30 kts)
Towards: Southern Coast of Honshu
24hr Rainfall Accum (near center): 90 mm (Medium)
Rainrate (near center): 50-80 mm/hr (Heavy)
Minimum Central Pressure: 985 millibars (hPa)
Saffir-Simpson Typhoon Scale: TS
Size (in Diameter): 775 km (420 nm) / Large
Wind Area Distribution (in Knots): Current Wind Profile
Max Sea Wave Height (near center): 28 ft (8.5 m)
Possible Storm Surge Height: 0-3 ft [0.0-0.9 m]
Wunder TrackMap (for Public): 9:00 AM JST Sun May 29
FORECAST OUTLOOK ANALYSIS (up to 24 hours)*
SONGDA (CHEDENG) is forecast to continue lose tropical characteristics as it passes along the Southern Coast of Japan within the next 12 to 24 hours and will become Extratropical as it moves out into the cooler waters of the North Pacific Ocean. 
THIS EVENING [SUN]: Passing along the southern coast of Honshu, Japan...about 215 km SW of Tokyo, Japan [8PM MAY 29: 34.1N 138.4E @ 85kph]. TOMORROW MORNING [MON]: Completes Extratropical (XT) transition...weakens further as it mcves Eastward - away from the SE Coast of Honshu and into the North Pacific Ocean...about 730 km ESE of Tokyo, Japan [8AM MAY 30: 34.5N 147.6E @ 75kph].
Maximum Sustained Winds (1-min. avg) have decreased to near 95 km/hr (50 knots) with higher gusts. SONGDA (CHEDENG) is a Tropical Storm (TS) on the Saffir-Simpson Tropical Cyclone Scale. Tropical Storm Force Winds (62-117 km/hr) extend outward up to 250 kilometers (130 nautical miles) from the center. SONGDA is a large-sized tropical cyclone with a diameter of 775 kilometers (420 nautical miles).
*Please be reminded that the Forecast Outlook changes every 6 hours, and the Extended Forecast Track have an average error of 250 km on Day 3...450 km on Day 4...and 650 km on Day 5, while the wind speed forecast error, averages 35 kph per day. Therefore, a turn to the left or right of its future track and changes in its wind speed must be anticipated from time to time.
EFFECTS & HAZARDS SUMMARY CURRENT SW MONSOON INTENSITY: MODERATE >> Mostly cloudy with possible occasional rains w/ squalls can be expected along the following affected areas: WESTERN LUZON, WESTERN VISAYAS, PALAWAN, MINDORO, ROMBLON, MARINDUQUE, SOUTHERN TAGALOG PROVINCES including METRO MANILA & SUBIC BAY. Light to moderate SW to Westerly winds (not in excess of 40 kph) will blow.
SONGDA's circulation continues to decay as observed on satellite imageries. Below are the summary of the typhoon's parts and its hazards affecting specific areas: INNER RAINBANDS - decaying while along the coast of Shikoku, spreading inland. Tropical Storm Conditions w/ Tropical Storm Force Winds (65-117 kph) can be expected along these bands. OUTER RAINBANDS - spreading across Western and Central Japan. Tropical Depression Conditions w/ moderate to strong winds (30-61 kph) can be expected along these bands (click here to know more about Rainbands). 24HR TOTAL RAINFALL ACCUMULATION - from 5 up to 50 mm (low to moderate rainfall) can be expected along the outer & inner rainbands...with isolated amounts of up to 80 mm (high) to the northeast of the center of SONGDA. (click to open NOAA's eTRaP graphic).
Important Note: Please keep in mind that the above forecast outlook, extended forecast, effects-hazards, current monsoon intensity, & tropical cyclone watch changes every 6 to 12 hrs!
JTWC (US NAVY & AIR FORCE) REMARKS:
REMARKS (for Meteorologists): 8 AM (00 GMT) SUN 29 MAY POSITION: 30.6N 131.7E.
*TROPICAL STORM (TS) 04W (SONGDA), LOCATED APPROXIMATELY 490 NM
WEST-SOUTHWEST OF YOKOSUKA, JAPAN, HAS TRACKED NORTHEASTWARD AT
30 KNOTS OVER THE PAST SIX HOURS AS IT GETS ABSORBED INTO THE
BAROCLINIC ZONE. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS THE
LOW LEVEL CIRCULATION CENTER HAS BECOME FULLY EXPOSED, TRAILING
BEHIND THE CENTRAL CONVECTION THAT HAS SIGNIFICANTLY DECOUPLED
NORTHEASTWARD DUE TO STRONG SOUTHWESTERLY VERTICAL WIND SHEAR. THE
INITIAL POSITION IS BASED ON THE ABOVE ANIMATION WITH HIGH
CONFIDENCE AND THE INITIAL INTENSITY IS EXTRAPOLATED FROM NEARBY
SHIP OBSERVATIONS AND SURFACE REPORTS ALONG THE COAST OF KYUSHU.
DVORAK ESTIMATES HAVE BECOME UNREPRESENTATIVE DUE TO THE DISPLACED
CLOUD SIGNATURE. UPPER LEVEL ANALYSIS INDICATES THE MID-LATITUDE
TROUGH THAT APPROACHED FROM THE WEST HAS PICKED UP THE SYSTEM AND
ERODED ITS VERTICAL STRUCTURE. THIS IS EVIDENT ON WATER VAPOR
SATELLITE IMAGERY...(more)
>> SONGDA, meaning: A river in northwestern Viet Nam. Name contributed by:Viet Nam.
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LATEST WUNDERGROUND.COM TRACKING CHART:
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RECENT MULTI-AGENCY TROPICAL CYCLONE FORECAST TRACKING CHART: 
> Image source: NOAA SATELLITE CENTER: http://www.ssd.noaa.gov/mtsat/flt/t1/rgb.jpg
> Image source: Wunderground.com Tropical Page (http://www.wunderground.com/tropical)
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LATEST 24 HR. TOTAL RAINFALL AMOUNTS / ENSEMBLE TROPICAL RAINFALL POTENTIAL (eTRaP):
> Image source: NOAA Satellite & Information Service (http://www.ssd.noaa.gov/PS/TROP/etrap.html)
>> 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.srh.noaa.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 TS SONGDA (CHEDENG)...go visit our website @:
> http://www.typhoon2000.com
> http://www.maybagyo.com
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