Typhoon NIDA continues to weaken as it moves slowly northwestward.

NIDA (26W) MAX WIND SPEED PER AGENCY:

+ USA (JTWC/1-min avg): 140 km/hr
+ Japan (JMA/10-min avg): 130 km/hr
+ Korea (KMA/10-min avg): 130 km/hr
+ Hong Kong (HKO/10-min avg): 130 km/hr
+ Taiwan (CWB/10-min avg): 120 km/hr
+ Beijing (NMC/2-min avg): 120 kph

TYPHOON NIDA [26W/0922]
T2K PUBLIC ADVISORY NUMBER 029
6:00 PM PST (10:00 GMT)
Tue 01 December 2009
Source: T2K Analysis/JTWC Warning #038 & SatFix
# View: Advisory Archives (2004-2009)

Typhoon NIDA continues to weaken as it moves slowly northwestward.

*Cooler dry air, increasing upper-level winds (aka. Vertical Wind Shear) and slightly lower sea surface temperatures are the ones that contribute for the weakening of NIDA.

*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: 6:00 PM PST Tue Dec 01 2009
Location of Eye: 20.5º N Lat 137.6º E Lon
Distance 1: 610 km (330 nm) SW of Iwo To
Distance 2: 270 km (145 nm) East of P.A.R.
Distance 3: 1,625 km (878 nm) East of Batanes, PH
MaxWinds (1-min avg): 140 kph (75 kts) near the center
Peak Wind Gusts: 165 kph (90 kts)
6-hr Rain Amounts (near the center): 250 mm [Heavy]
Minimum Central Pressure: 967 millibars (hPa)
Saffir-Simpson Typhoon Scale: Category 1
Present Movement: WNW @ 05 kph (03 kts)
Towards: Western Pacific Ocean
Size (in Diameter): 760 km (410 nm) / Large
Max Sea Wave Height (near center): 28 ft (8.5 m)
Coastal Storm Surge Height: 4-5 feet [1.2-1.7 m]
Wunder TrackMap (for Public): 2 PM PST Tue Dec 01

+ Forecast Outlook: NIDA is expected to continue moving WNW and weaken fast within the next 2 days. This system will be downgraded into a Tropical Storm tomorrow as cold dry air, increasing upper level winds and cooler sea surface temperatures enters its circulation. It will then start recurving towards the NE on Thursday (2PM Dec 03: 22.9N 135.5E). The 2 to 3-day Medium-Range Forecast shows the system becoming an Extratropical Cyclone while accelerating NE-ward on Friday (2PM Dec 04: 26.5N 138.0E). This recurvature scenario is due to an appoaching strong middle-latitude low pressure (aka. frontal system) digging from the north. Please be reminded that the Forecast Outlook changes every 6 hours, so a turn to the left or right of its future track and other possibilities must be considered.

+ Effects & Hazards: NIDA is not affecting any major islands at this time. 6-hr total rainfall amounts of 5 up to 150 mm (light to moderate rain) can be expected along the outer and inner bands...with isolated amounts of 250 mm (heavy rain) just north of NIDA's ill-defined Eye or along the Northern EyeWall. Click here to view the latest NOAA's eTRaP graphic on the storm's rainfall amount.

+ Current NE Monsoon Intensity: MODERATE >> Clear to mostly cloudy skies with passing occasional rains and squalls (subasko) can be expected along the following affected areas: EASTERN LUZON, BICOL REGION, MASBATE AND NORTHERN VISAYAS. Light to moderate northeasterly winds (not in excess of 40 kph) can be expected on these areas.

[Important Note: Please keep in mind that the above forecast outlook, effects, current monsoon intensity, & tropical cyclone watch changes every 6 to 12 hrs!]
External Links for TY NIDA (27W)

View NOAA-CIRA's Latest Wind Analysis
JTWC Latest Tracking Chart: wp2609.gif
TSR Wind Probabilities: Current to 3-days Ahead
NASA-JAXA TMI Page: Latest Rainrate 01
EORC-JAXA TRMM Page: Latest Rainrate 02
Zoomed Satellite Pic: NOAA's Near Real-Time
Wunderground Animation: 6-12 hr. GIF Loop