92W DEVELOPING AS SW WINDFLOW AND MONSOON TROUGH REMAINS

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(AS OF 4P[06:30UTC] APRIL 21, 2009)

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TROPICAL DISTURBANCE WARNING 92W

9N, 114E

ALMOST STATIONARY

SLP 1006MB

15KTS

RAINRATE:16-17mm/hr

SYNOPSIS: SOUTHWESTERLY WINDFLOW OVER LUZON AND WESTERN VISAYAS, MONSOON TROUGH (ITCZ) OVER VISAYAS AND MINDANAO.

Tropical disturbance 92w slowly organizing over South China sea though its convection remain not wrapping around LLCC. Shear so far remain low with upper divergence remain fair at 20kts. 92W now under watch but possibly upgraded to alert within the next 12-24hrs.

Southwesterly windflow remain affecting Luzon and Western Visayas and expect some light-heavy shower/TS along the area.

Monsoon trough also slowly developing along Mindanao.

Winds will be remain at 28kph over S-SW at Luzon and Western Visayas becoming SE-S over the rest of the country.

92W will be closely monitored as environment along South China sea are favourable for tropical cyclogenesis.

AREAS MOSTLY PRECIPITATED BASED ON 3BR2RT TRMM IN THE PHILIPPINES

1 DAY
35.00 mm CALAPAN/MINDORO ISL 14.63 121.02

35.00 mm OZAMIS/MINDANAO ISL 8.18 123.85

36.00 mm MAMBURAO/MINDORO IL 13.22 120.60

41.00 mm BISLIG/MINDANAO ISL 8.22 126.32

41.00 mm HINATUAN/MINDANAO 8.37 126.33

42.00 mm ILOILO/PANAY ISLAND 10.70 122.57

43.00 mm TACLOBAN/LEYTE ISL 11.25 125.00

47.00 mm ILIGAN/MINDANAO ISL 8.15 124.22

49.00 mm CUYO ISLANDS 10.85 121.03

50.00 mm LUMBIA AIRPORT 8.43 124.28

52.00 mm IBA/LUZON ISLAND 15.33 119.97

53.00 mm CLARK AFB/LUZON ISL 15.18 120.55

53.00 mm CROW VALLEY GNRY RG 15.32 120.38

61.00 mm CATBALOGAN/SAMAR IL 11.78 124.88

61.00 mm MUNOZ/LUZON ISLAND 15.72 120.90

79.00 mm CAGAYAN DE ORO 8.48 124.63

110.00 mm CALBAYOG/SAMAR ISL 12.07 124.55
3 DAYS
110.00 mm ILIGAN/MINDANAO ISL 8.15 124.22

128.00 mm MUNOZ/LUZON ISLAND 15.72 120.90

131.00 mm LUMBIA AIRPORT 8.43 124.28

180.00 mm CALBAYOG/SAMAR ISL 12.07 124.55

226.00 mm CAGAYAN DE ORO 8.48 124.63

7 DAYS
205.08 mm ILIGAN/MINDANAO ISL 8.15 124.22

258.79 mm CALBAYOG/SAMAR ISL 12.07 124.55

263.67 mm BALER RADAR 15.75 121.63

302.73 mm CAGAYAN DE ORO 8.48 124.63