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OBS.# DATE / TIME* PRES.(mb.) -/+ (mb.) WIND SPD/DIR STORM DISTANCE REMARKS
16 11:00am 997.3 +0.3 26 kph/W 124 km. NE Lowest barometric
pressure recorded
@ 8:32am: 996.6 mb.
Pressure now
slowly rising...
17 2:00pm 998.0 +0.7 24 kph/WSW 138 km. NNE =End of 3-hr. Obs.=
Typhoon moving away
as strong gale force
winds with moderate
to heavy rainfall
continues.
18 8:00pm 1002.0 +4.0 08 kph/SW 197 km. NNE =End of 6-hr. Obs.=
Parts of Naga City
flooded. Moderate
to heavy rainfall
still prevailing
although gale
force winds no
longer present.
19 05-18/8:00am 1006.4 +4.4 19 kph/SW 369 km. N =Final Observation=
Cloudy and breezy
conditions at the
moment. Flood waters
subsided. Overall,
light damage
especially on trees,
billboards, and few
shanties. Agricultu-
ral crops adversely
affected due to
flood waters and
winds.
Other Pertinent Data:
 Wind Speed (10-min. Ave.) / Wind Direction & Pressure Readings Over Virac, Catanduanes*
> 3am (19 utc) May 17.....145 kph/North.....970.5 mb.
> 4am (20 utc) ...........160 kph/NNW.......969.6 mb.
> 5am (21 utc) ...........160 kph/WNW.......967.0 mb.
> 6am (22 utc) ...........185 kph/West......965.8 mb.
* - Based on data retrieved from PAGASA Manila through local office.
40-Hour Cumulative Rainfall Over Naga City/Camaligan, Camarines Sur**
> May 16 to 18 ........................ 150 mm.
____________
Total ............................... 150 mm.
** - Based on 11am (03utc) May 16 to 4am (20utc) May 18 readings from PAGASA Bicol River Basin Flood Forecasting Center (BRBFFC),
Camaligan, Camarines Sur, Philippines. Special thanks goes to Mr. Fred Consulta, Arnold Agtarap, & Mr. Arthur Balang (Head) for
giving us the rainfall data.
Note: Wind Speeds are based on 1-min. average. Values are lower due to obstruction of trees.
* - Based on local time (Philippine Standard Time) [-8 = UTC]
Instruments used: WeatherMax (Barometer & Wind Direction) by Maximum, Inc. &
Weather Wizard III (Wind Speed & Gusts) by Davis Instruments.
Published: Friday, 28 May 2004
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