Sunday, October 14, 2012

Typhoon PRAPIROON (NINA) - Update #020

 


for Sunday, 14 October 2012 [1:54 PM PhT]

WEATHER.COM.PH / T2K TROPICAL CYCLONE UPDATES

TYPHOON PRAPIROON (NINA) UPDATE NUMBER 020

Issued: 12:00 NN PhT (04:00 GMT) Sunday 14 Oct 2012
Next Update: 6:00 PM PhT (10:00 GMT) Sunday 14 Oct 2012

Typhoon PRAPIROON (NINA) has moved north-northeast slowly while over the North Philippine Sea...weakens further.

Meanwhile, another system is developing over the Western Pacific. Tropical Disturbance 90W (LPA) located over the Northern Marianas...and is likely to become a Tropical Depression within the next 6 to 24 hours. It was moving northwest towards the Iwo To and Chichi Jima Islands and is not a threat to the Philippines.

Residents and visitors along Okinawa and Southern Japan should closely monitor the development of Prapiroon (Nina).


Do not use this for life or death decision. This update is intended for additional information purposes only. Kindly refer to your national weather agency for official warnings, advisories or bulletins.


CURRENT STORM ANALYSIS

As of 12 noon today, the eye of Typhoon Prapiroon (Nina) was located over the open waters of the North Philippine Sea...about 953 km east-northeast of Basco, Batanes or 568 km south-southeast of Okinawa City, Japan...currently moving north-northeast slowly with a forward speed of 7 km/hr.

Maximum Sustained Winds (1-min. avg) have decreased to 120 km/hr near the center with higher gusts. Typhoon Force Winds (118 km/hr or more) extend outward up to 35 kilometers (20 nautical miles) from the center...and Tropical Storm Force Winds (62-117 km/hr) extend outward up to 350 kilometers. These winds will remain over the open sea, not affecting any land areas. Prapiroon (Nina) is a very large-sized tropical cyclone with a diameter of 1,000 kilometers across. The 24-hour rainfall accumulation near and north of the center of Prapiroon (Nina) is estimated to be heavy (400 mm).


3-DAY FORECAST OUTLOOK*

Prapiroon (Nina) is expected to move slowly north to north-northwestward during the next 24 to 48 hours...and recurve sharply northwestward throughout the forecast period. On the forecast track, the core of Prapiroon (Nina) will continue to remain over the open sea, but may move closer to Okinawa on Tuesday and Wednesday and exit the Philippine Area of Responsibility (PAR).

This typhoon may re-strengthen slightly during the next 2 days and weaken on day 3.

The following is the summary of the 3-day forecast outlook on this system:

MONDAY NOON: Moving slowly northward as it maintains its strength...about 512 km southeast of Okinawa, Japan [12PM OCT 15: 23.0N 131.1E @ 120kph].
TUESDAY NOON: Turns north-northwest as it nears Okinawa and Ryukyu Islands...about 366 km southeast of Okinawa, Japan [12PM OCT 16: 24.5N 130.7E @ 140kph].
WEDNESDAY NOON: Recurves to the northeast away from Okinawa and Ryukyu Islands...about 400 east of Okinawa, Japan [12PM OCT 17: 26.3N 131.8E @ 130kph].

*Please be reminded that the Forecast Outlook changes every 6 hours, and the Day 3 Forecast Track have an average error of 250 km...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

Below is the summary of the storm's parts and its hazards affecting specific areas. You can also view this image link for you to understand the parts.

CLOUD-FILLED EYE - over water (North Philippine Sea)...not affecting any land areas. Possible calm and lull conditions (with <20 kph winds) will be expected inside the eye (click here to know more about the EYE).
EYEWALL - over water (North Philippine Sea)...not affecting any land areas. Typhoon Conditions with Typhoon Force Winds (>118 kph) will be expected within this wall (click here to know more about the Eyewall).
INNER RAINBANDS - over water (North Philippine Sea)...not affecting any land areas. Tropical Storm Conditions with Tropical Storm Force Winds (62-117 kph) will be expected along these bands.
OUTER RAINBANDS - its outermost part affecting and spreading across Okinawa and Ryukyu Islands. Tropical Depression Conditions with moderate to strong winds (<62 kph) will be expected along these bands (click here to know more about Rainbands).
24HR TOTAL RAINFALL ACCUMULATION - from 5 up to 200 mm (low to heavy rainfall) can be expected along areas affected by the outer & inner rainbands (see above)...with isolated amounts of 201 to 400 mm (heavy) along areas near and north of the center of Prapiroon (Nina).

Important Note: Please keep in mind that the above forecast outlook, effects and hazards summary changes every 6 to 12 hrs!



CURRENT TECHNICAL INFORMATION

Time/Date: 12:00 NN PhT Sun October 14, 2012
Class/Name: Typhoon Prapiroon (Nina)
Location of Eye: 22.3º N Lat 131.0º E Lon
Distance 1: 548 km (SSE) closer to Naha Airport, Okinawa
Distance 2: 559 km (SSE) closer to Kadena Air Base, Okinawa
Distance 3: 568 km (SSE) closer to Okinawa City
Distance 4: 686 km (SSE) closer to Amami Is., Ryukyus
Distance 5: 953 km (ENE) away from Basco, Batanes
MaxWinds (1-min avg): 120 kph near the center
Peak Wind Gusts: 150 kph
Present Movement: NNE @ 07 kph
Towards: Western Pacific Ocean
24hr Rainfall Accum (near center): Heavy [400 mm]
Minimum Central Pressure: 974 millibars (hPa)
Size (in Diameter): 1,000 km [Very Large]
Max Sea Wave Height (near center): 31 feet
Possible Storm Surge Height: 4-5 ft (1.2-1.7 m)

T2K StormTracks (for Public): GIF | Google Map (Flash)


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CURRENT NOAA/MTSAT-2 SATELLITE ANIMATION:

http://www.ssd.noaa.gov/PS/TROP/floaters/22W/imagery/rgb-animated.gif


CURRENT NOAA/MTSAT-2 INFRARED SATELLITE IMAGE
:

http://www.ssd.noaa.gov/PS/TROP/floaters/22W/imagery/rb0-lalo.jpg


CURRENT TRACKING CHART:


http://www.typhoon2000.ph/advisorytrax/2012/nina20.gif

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NOTE:

>> 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.nhc.noaa.gov/acronyms.shtml
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For the complete details on TY PRAPIROON (NINA)...go visit our website @:

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

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