Wednesday, July 20, 2011

Typhoon MA-ON [08W] - Update #025

 


for Wednesday, 20 July 2011 [12:30 PM PhT]

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Typhoon2000 (T2K) NEWS (Monday July 18 2011):

Currently issuing 6-hrly web, twitter and e-mail updates (except 12:00 Midnight) on Typhoon MA-ON (INENG).


MA-ON (INENG) MAX WIND SPEED PER AGENCY:

+ USA (JTWC/1-min avg): 110 km/hr
+ Japan (JMA/10-min avg): 100 km/hr
+ Korea (KMA/10-min avg): 130 km/hr
+ Taiwan (CWB/10-min avg): 100 km/hr
+ Beijing (NMC/2-min avg): 120 km/hr
+ Hong Kong (HKO/10-min avg): 140 km/hr
:: Click here to see Multi-Agency Forecast Tracks


TROPICAL STORM MA-ON [INENG/08W/1106]

T2K PUBLIC ADVISORY NUMBER 025

12:00 PM PhT (04:00 GMT) Wed 20 July 2011
Source: T2K Extrap Analysis/JTWC Warning #035/SatFixes
View: Advisory Archives (2004-2011)
MA-ON (INENG) has crossed the southernmost portion of the Wakayama Prefecture, along the Kii Peninsula a few hours ago. The eye has emerged along the SE coast of the peninsula while moving eastward into the NW Pacific Ocean. Its intensity has dropped to just below typhoon threshold.

Residents and visitors along the Southern Japan should closely monitor the progress of MA-ON (INENG).

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 Wed July 20 2011
Location of Eye: 33.6º N Lat 136.5º E Lon {Radar Fix}
Distance 1: 100 km (55 nm) East of Tanabe, Japan
Distance 2: 135 km (73 nm) ESE of Wakayama, Japan
Distance 3: 180 km (97 nm) SSW of Nagoya, Japan
Distance 4: 375 km (203 nm) WSW of Tokyo, Japan
MaxWinds (1-min avg): 110 kph (60 kts) near the center
Peak Wind Gusts: 140 kph (75 kts)
Present Movement: East @ 20 kph (11 kts)
Towards: NW Pacific Ocean
CPA [ETA] to Tokyo: Thu Morning [2-4AM JST]
6-12hr Rainfall Accum (SE of center): 100 mm (Med-High)
Rainrate (near center): 15-25 mm/hr (Moderate)
Minimum Central Pressure: 978 millibars (hPa)
Saffir-Simpson Typhoon Scale: Tropical Storm
Size (in Diameter): 1020 km (550 nm) / Very Large
Wind Area Distribution (in Knots): Current Wind Profile
Possible Storm Surge Height: 0-3 ft [0.0-0.9 m]
Wunder TrackMap (for Public): 9:00 AM JST Wed July 20

FORECAST OUTLOOK ANALYSIS (up to 2 days)*

MA-ON (INENG) is expected to continue moving East to ESE away from Japan and maintain its near-typhoon strength within the next 24 to 36 hours...shall turn ENE to NE-ward by Friday morning (48 hours) across the NW Pacific Ocean. Below is the summary of the 2-day forecast for this system.

THIS EVENING (WED):  Maintains its near-Typhoon strength while moving ESE into the NW Pacific Ocean...about 215 km ESE of Tanabe, Japan [8PM JUL 20: 33.1N 137.6E @ 110kph].
TOMORROW MORNING (THU):  No change in strength...maintains its ESE movement...about 380 km South of Tokyo, Japan [8AM JUL 21: 32.3N 139.8E @ 110kph].
TOMORROW EVENING (THU):  Still no change in strength & movement...about 510 km SSE of Tokyo, Japan [8PM JUL 21: 31.5N 141.9E @ 110kph].
FRIDAY MORNING:  Turns East to ENE while over the NW Pacific...about 600 km SE of Tokyo, Japan [8AM JUL 22: 31.8N 144.2E @ 110kph].

Maximum Sustained Winds (1-min. avg) are near 110 km/hr (60 knots) with higher gusts. MA-ON (INENG) is a Strong Tropical Storm on the Saffir-Simpson Tropical Cyclone Scale. A little change in strength can be expected. Tropical Storm Force Winds (62-117 km/hr) extend outward up to 270 kilometers (145 nautical miles) from the center. MA-ON remains a very large-sized tropical cyclone with a diameter of 1,020 kilometers (550 nautical miles) across.

EXTENDED FORECAST TRACK (3 to 5 days)*

SATURDAY MORNING:  Accelerates NE-ward across the open waters of the NW Pacific [8AM JUL 23: 34.3N 147.7E @ 110kph].
SUNDAY MORNING:  Starts to lose strength as it rapidly accelerates NE-ward into a much cooler sea-surface temperatures (SSTs) & unfavorable environment...becoming Extratropical [8AM JUL 24: 38.5N 151.7E @ 100kph].
MONDAY MORNING:  Weakens further as it nears Extratropical status [8AM JUL 25: 43.6N 156.7E @ 85kph].

*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

MA-ON's (INENG) very large circulation continues to deteriorate after interacting with the rugged terrain of Kii Peninsula. Below is the summary of the storm's parts and its hazards affecting specific areas:

WEAK EYE - remains over water or near the Eastern Coast of Kii Peninsula. Possible calm and lull conditions (with <20 kph winds) can be expected inside the eye (click here to know more about the EYE).
DECAYING EYEWALL - spreading & affecting SE part of the Kii Peninsula. Near-Typhoon Conditions with Near-Typhoon Force Winds (86-118 kph) can be expected within this wall (click here to know more about the Eyewall).
INNER RAINBANDS - spreading & affecting Rest of Kii Peninsula & other parts of Southern Honshu, west of Tokyo. Tropical Storm Conditions w/ Tropical Storm Force Winds (62-85 kph) can be expected along these bands.
OUTER RAINBANDS - spreading & affecting Shikoku, Central & Southern Honshu including Metropolitan Tokyo. Tropical Depression Conditions w/ moderate to strong winds (30-61 kph) can be expected along these bands (click here to know more about Rainbands).
6-12HR TOTAL RAINFALL ACCUMULATION - from 5 up to 50 mm (low to medium rainfall) can be expected along the outer & inner rainbands...with isolated amounts of up to 100 mm (med-high) near the center of MA-ON (INENG), especially along the SE portion. (click to open NOAA's eTRaP graphic).
COASTAL STORM SURGE FLOODING - possible 0 to 3 feet above normal tide levels...accompanied by large and dangerous battering waves can be expected along the coastal and beach front areas of the Kii Peninsula & other parts of Southern Honshu today. Minimal damage is likely on this type of storm surge. Danger from Rip Currents or Rip Tides can be expected along the beach-front areas of Japan and the outlying islands of Okinawa, Ryukyu, Chichijima, Iwo To and other neaby areas.
(click here to know more about Storm Surge).

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) WED 20 JULY POSITION: 33.6N 135.6E.
*TROPICAL STORM (TS) 08W (MA-ON), LOCATED APPROXIMATELY 220 NM
WEST-SOUTHWEST OF YOKOSUKA, JAPAN, HAS TRACKED EASTWARD AT 07 KNOTS
OVER THE PAST SIX HOURS.  ANIMATED MULTISPECTRAL SATELLITE IMAGERY
(MSI) SHOWS CONVECTION HAS SIGNIFICANTLY DECREASED ON THE
NORTHWESTERN PERIPHERY OF TS 08W IN RESPONSE TO A NARROW 200 MB
TROUGH EXTENDING SOUTHWESTWARD ACROSS THE EASTERN SEA OF JAPAN. 
INTERACTION WITH HONSHU IS ALSO RESULTING IN A DECREASE IN
CONVECTIVE ACTIVITY WITHIN MA-ON.  A 23/2345Z 91 GHZ SSMIS MICROWAVE
SATELLITE IMAGE ALSO INDICATES ONLY MINIMAL CONVECTION NEAR THE LOW
LEVEL CIRCULATION CENTER (LLCC) WITH A DEEPER BAND WELL TO THE
EAST.  ANIMATED WATER VAPOR IMAGERY SHOWS A SUBSIDENT REGION
AFFECTING THE NORTHERN HALF OF TS 08W.  DECREASED POLEWARD OUTFLOW
IS ALSO EVIDENT ON WATER VAPOR IMAGERY.  MA-ON IS CURRENTLY OVER THE
EXTREME SOUTHERN TIP OF THE KII PENINSULA, AND THIS POSITION IS
BASED ON RADAR, SURFACE OBSERVATIONS, AND MSI.  CURRENT INTENSITY IS
BASED ON A RJTD DVORAK INTENSITY ESTIMATE RANGING FROM 55 TO 65
KTS.  UPPER LEVEL STREAMLINE ANALYSIS PLACES TS MA-ON JUST SOUTH AND
EAST OF AN UPPER LEVEL TROUGH AND ASSOCIATED SUBSIDENT REGION IN
NORTHERN HONSHU.  TS 08W IS UNDER THE STEERING INFLUENCE OF A
FLATTENED, DEEP-LAYERED, SUBTROPICAL RIDGE (STR) EXTENDING FROM THE
PHILIPPINES TO THE DATELINE...(
more info)

>> MA-ON, meaning: Horse saddle (name of a peak)Name contributed by: Hong Kong, China.
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RECENT WUNDERGROUND.COM (JTWC) TRACKING CHART
:

 
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RECENT MULTI-AGENCY TROPICAL CYCLONE FORECAST TRACKING CHART:


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RECENT MTSAT-2 "DAY & NIGHT VISION" SATELLITE IMAGE
:


> Image source:  NOAA SATELLITE CENTER: http://www.ssd.noaa.gov/mtsat/flt/t1/rgb.jpg 
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RECENT WUNDERGROUND SATELLITE ANIMATION:  



> Image source:  Wunderground.com Tropical Page (http://www.wunderground.com/tropical)
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LATEST 6-12HR. TOTAL RAINFALL AMOUNTS / ENSEMBLE TROPICAL RAINFALL POTENTIAL (eTRaP)
:  



> Image source:
  NOAA Satellite & Information Service (
http://www.ssd.noaa.gov/PS/TROP/etrap.html)
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NOTE:
 
  * - JTWC commentary remarks (for Meteorologists) from their latest warning.
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>> 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 TY MA-ON (INENG)...go visit our website @:

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

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http://www.typhoon2000.ph/disclaimer.htm


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