WEATHER.COM.PH / T2K TROPICAL CYCLONE UPDATES
TYPHOON PRAPIROON (NINA) UPDATE NUMBER 005
Issued: 12:00 NN PhT (04:00 GMT) Tuesday 09 Oct 2012
Next Update: 6:00 PM PhT (10:00 GMT) Tuesday 09 Oct 2012
The large Typhoon PRAPIROON (NINA) has slowed down while moving westward across the North Philippine Sea...remains far away from land and not a threat to the Philippines.
Meanwhile, rains with isolated squalls (locally known as "Subasko") and thunderstorms associated with the northerly surface windflow, enhanced by Prapiroon (Nina) will continue to affect the Bicol Region and Samar Provinces today.
Residents and visitors along Northern Luzon, Taiwan and Okinawa 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 1062 km east-southeast of Santa Ana, Cagayan or 1088 km south-southeast of Okinawa, Japan...currently moving west slowly with a forward speed of 9 km/hr.
Maximum Sustained Winds (1-min. avg) are at 120 km/hr near the center with higher gusts. Typhoon Force Winds (118 km/hr or more) extend outward up to 30 kilometers (15 nautical miles) from the center...and Tropical Storm Force Winds (62-117 km/hr) extend outward up to 165 kilometers. These winds remain over the open sea and are not affecting any land areas. Prapiroon (Nina) is a large-sized tropical cyclone with a diameter of 890 kilometers across. The 24-hour rainfall accumulation near the center of Prapiroon (Nina) is estimated to be extreme (500 mm).
3-DAY FORECAST OUTLOOK*
Prapiroon (Nina) is expected to continue moving slowly west to west-northwest during the next 24 hours with a turn to the northwest and north through 48 hours. Through 72 hours, Prapiroon (Nina) may recurve sharply northeastward across the North Philippine Sea. On the forecast track, the core of Prapiroon (Nina) will remain over the open sea through Friday.
Continued strengthening of its wind speed is expected during the next 3 days as the system continues to move over warm sea surface temperatures...and Prapiroon (Nina) could become a category 2 typhoon on Wednesday.
The following is the summary of the 3-day forecast outlook on this system:
WEDNESDAY NOON: Moving west-northwest...becomes a category 2 typhoon...about 865 km east of Santa Ana, Cagayan [12PM OCT 10: 18.3N 130.4E @ 160kph].
THURSDAY NOON: Approaching Category 3 status, turns northwest to northward...about 818 km east-southeast of Basco, Batanes [12PM OCT 11: 19.8N 129.8E @ 175kph].
FRIDAY NOON: Becomes a Category 3 typhoon as it starts to recurve towards the northeast...remains over the open sea...about 937 east-northeast of Basco, Batanes [12PM OCT 12: 21.0N 131.0E @ 185kph].
*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 - over water (North & Central Philippine Sea)...not affecting any land areas. Cloudy/Rainy 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 500 mm (heavy to extreme) along areas near the center of Prapiroon (Nina).
Important Note: Please keep in mind that the above forecast outlook, effects-hazards, current monsoon intensity, & tropical cyclone watch changes every 6 to 12 hrs!
CURRENT TECHNICAL INFORMATION
Time/Date: 12:00 NN PhT Tue October 09, 2012
Class/Name: Typhoon Prapiroon (Nina)
Location of Eye: 17.6º N Lat 132.2º E Lon
Distance 1: 1030 km (ENE) closer to Palanan Bay, Isabela
Distance 2: 1088 km (SSE) closer to Okinawa, Japan
Distance 3: 1062 km (ESE) closer to Santa Ana, Cagayan
Distance 4: 1113 km (E) closer to Tuguegarao City
Distance 5: 1119 km (ESE) closer to Basco, Batanes
MaxWinds (1-min avg): 120 kph near the center
Peak Wind Gusts: 150 kph
Present Movement: West @ 09 kph
Towards: North Philippine Sea
24hr Rainfall Accum (near center): Extreme [500 mm]
Minimum Central Pressure: 974 millibars (hPa)
Size (in Diameter): 890 km [Large]
Max Sea Wave Height (near center): 22 feet
Possible Storm Surge Height: 4-5 ft (1.2-1.7 m)
T2K StormTracks (for Public): GIF | Google Map (Flash)
CURRENT NOAA/MTSAT-2 INFRARED (IR) SATELLITE IMAGE:
CURRENT TRACKING MAP:
_____________________________________________________________________________>> 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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> http://www.typhoon2000.com
> http://www.maybagyo.com
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