Sunday, September 23, 2012

TS JELAWAT [LAWIN] - Update #008


for Sunday, 23 September 2012 [8:47 AM PhT]

Typhoon2000 (T2K) NEWS (Friday September 21, 2012):

Currently issuing 6-hrly web, email, SMS, & iTyphoon app updates (except 12 Midnight) on JELAWAT (LAWIN).


+ USA (JTWC/1-min avg): 110 km/hr
+ Japan (JMA/10-min avg): 100 km/hr
+ Philippines (PAGASA/10-min avg): 105 km/hr
+ Beijing (NMC/2-min avg): 95 km/hr
+ Taiwan (CWB/10-min avg): 100 km/hr
+ Korea (KMA/10-min avg): 110 km/hr

+ Hong Kong (HKO/10-min avg): 95 km/hr
:: Click here to see Multi-Agency Forecast Tracks


6:00 AM PhT (22:00 GMT) Sun 23 September 2012
Sources: T2K Analysis/JTWC Warnings/Dynamic Models/SatFixes
View: T2K TC Update Archives (2004-2012)
Tropical Storm JELAWAT (LAWIN) almost a Typhoon as it drifts slowly westward...its forecast path pointing more towards the north...Outer rainbands continues spreading across Eastern Visayas and portions of the Bicol Region.

Residents and visitors along Eastern Visayas, Bicol Region and Luzon should closely monitor the progress of Jelawat (Lawin).

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.


Time/Date: 6:00 AM PhT Sun September 23, 2012
Location of Center: 11.9º N Lat 129.1º E Lon
Distance 1: 404 km (ENE) closer to Borongan City
Distance 2: 453 km (ENE) closer to Tacloban City
Distance 3: 494 km (ESE) closer to Catarman, N.Samar
Distance 4: 564 km (SE) closer to Virac, Catanduanes
Distance 5: 567 km (ESE) closer to Sorsogon City
Distance 6: 601 km (ESE) closer to Legazpi City
Distance 7: 667 km (SE) closer to Naga City
Distance 8: 913 km (SE) closer to Metro Manila
MaxWinds (1-min avg): 110 kph (60 kts) near the center
Peak Wind Gusts: 140 kph (75 kts)
Present Movement: West @ 07 kph (04 kt)
Towards: Philippine Sea
NOAA 24hr Rainfall Accum (near center): 500 mm (VHigh)
Minimum Central Pressure: 978 millibars (hPa)
Saffir-Simpson Typhoon Scale: Tropical Storm
Size (in Diameter): 555 km (300 nm) [Average]
Wind Area Distribution (in Knots): Current Wind Profile
Max Sea Wave Height (near center): 18 ft
Possible Storm Surge Height: 1-3 ft [0.3-0.9 m]
T2K StormTracks (for Public): Google Map (Flash) | GIF
(for Philippines only)


JELAWAT (LAWIN) is expected to move very slowly NW during the next 12 hours...and will make a gradual turn toward the North during the next 24 to 72 hours. On the forecast track, the core of JELAWAT will continue to remain over the warm open waters of the Philippine Sea, well to the east of Luzon and no longer affecting any land areas.

Maximum Sustained Winds (1-min. avg) have increased to 110 km/hr (60 knots) with higher gusts. A continued increase in strength will be expected during the next 2 to 3 days...and JELAWAT could become a Typhoon today.

Tropical Storm Force Winds (62-117 km/hr) extend outward up to 120 kilometers (65 nautical miles) from the center. JELAWAT is an average-sized tropical cyclone with a diameter of 555 kilometers (300 nautical miles) across.

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

MONDAY MORNING: Starts moving slowly north...becomes a Category 1 Typhoon...about 465 km E of Virac, Catanduanes [6AM SEP 24: 13.4N 128.5E @ 140kph].
TUESDAY MORNING: Maintains its northerly track across the Philippine Sea...becomes a Category 2 Typhoon...about 673 km E of Casiguran, Aurora [6AM SEP 25: 16.0N 128.4E @ 165kph].
WEDNESDAY MORNING: Reaches Category 3 strength as it turns NNW across the North Philippine Sea...about 590 km E of Santa Ana, Cagayan [6AM SEP 26: 18.6N 127.8E @ 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.


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.

CENTRAL DENSE OVERCAST (CDO) - over water (Philippine Sea)...possible "Eye" may be forming underneath the cirrus canopy. Near-Typhoon Conditions w/ Near-Typhoon Force Winds (100-117 kph) will be expected along the CDO (click here to know more about CDO).
INNER RAINBANDS - over water (Philippine Sea)...not yet affecting any land areas.. Tropical Storm Conditions with Tropical Storm Force Winds (62-99 kph) will be expected along these bands.
OUTER RAINBANDS - its westernmost part affecting & spreading across Eastern Visayas and portions of Bicol Region. 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 high rainfall) can be expected along areas affected by the outer & inner rainbands (see above)...with isolated amounts of 201 to 500 mm (high to very high) along areas near the center of Jelawat (Lawin) (click to open NOAA's eTRaP graphic).

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!

PAGASA Philippine Storm Warnings Signals

Kindly visit: The official PAGASA Website to view the Signals hoisted

External Links for TS JELAWAT (LAWIN)

PAGASA: Hourly Updates
View NOAA-CIRA's: Latest Full Wind Analysis
JTWC Latest Tracking Chart: wp1812.gif
Multi-Agency Forecast TrackMap: Near Real-Time
TSR Wind Probabilities: Current to 5 Days Ahead
JAXA TRMM Page: Latest Rainrate (in mm/hr)
NASA TRMM Page: Jelawat's Rainrate Archives (in mm/hr)
Zoomed Satellite Pic: NOAA's Near Real-Time
Wunderground Animation: 6-12 hr. GIF Loop








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

For the complete details on TS JELAWAT (LAWIN)...go visit our website @:


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