TYPHOON “YUTU” (local name: ROSITA)
25-31 October 2018

Preparation Measuresand Early Warning
The Weather and Climate Authority

Best Trackof ofTCTyphoon
YUTU (localname:ROSITA)
TrackYutu(1826)

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The Weather and Climate Authority

Developed into TropicalDepression at 8:00 PM PHT 21 Oct
near Micronesia and intensified into
Tropical Storm at 8:00 AM PHT 22Oct.
Peak intensity at 8:00 PM PHT 24Oct (900 hPa, 115 kt)
Entered PAR as Typhoon at 6:30 AM
PHT 27 Oct (920 hPa, 105 kt)
Landfall at Dinapigue, Isabela at4:00 AM PHT 30 Oct as Typhoon (955hPa, 80 kt) and traversed themountainous regions of Isabela,Quirino, Nueva Viscaya, Benguet andLa Union.
Exit Luzon Landmass as Severe
Tropical Storm at 2:00 PM PHT 30Oct (980 hPa, 55 kt)
Exit PAR as Tropical Storm at 8:00
PM PHT 31 Oct (992 hPa, 45 kt)
Weakened into LPA at 8:00 PM PHT
2 Nov (1012 hPa).

Warning Information
A total of forty-four (44) domestic information, in the form of twenty-two (22) severe weather bulletins(SWB) and five (5) tropical cyclone advisories (TCA), and eighteen (18) tropical cyclone warnings forshipping (TCWS) were issued.
• The first TCA was issued on 25 October at 11:00 AM.
• The first SWB was issued on 27 October at 11:00 AM.
• The first PAGASA Press Conference was held on 27 October at 11:00 AM.
• A total of 30 provinces were placed under Tropical Cyclone Warning Signals (TCWS) during thepassage of YUTU with the highest being TCWS #3.
As part of disaster preparation activities, the first Pre-Disaster Risk Assessment (PDRA) meeting washeld by the National Disaster Risk Reduction and Management Council on 26 October 2018.
Meanwhile, a total of eighteen (18) tropical cyclone warnings (WTPH20 RPMM) were sent for regional
exchange with other meteorological centers via the WMO Global Telecommunications System.

The Weather and Climate Authority

National Warnings use the local name “ROSITA” instead of “YUTU”

The Weather and Climate Authority

National Warnings use the local name “ROSITA” instead of “YUTU”

The Weather and Climate Authority

National Warning uses the local name “ROSITA”
instead of “YUTU”
The Weather and Climate Authority

Significant Meteorological Observation
The lowest mean sea level pressure (MSLP) of 951 hPa, during thetyphoon passage, was recorded in Bayombong, Nueva Ecija at
9:00 AM on 30 October.
Meanwhile, the highest gust observation of 169 km/h was recordedat Isabela State University station in Echague, Isabela at 6:37 AMof 30 October. Other significant observations are shown in Table 1.
For comparison, the figure on the right shows the highest warning
signal issued during the passage.
Field Station

Mean Sea Level Pressure(hPa)Peak Gust(km/h)

NVSU, Bayombong, Nueva Vizcaya

951.0112

ISU, Echague, Isabela

960.0*

169

Casiguran, Aurora

971.8

130

Baguio City, Benguet

985.0

79

Table 1. Significant wind and pressure observations during the passage.
*obtained using an aneroid barometer

The Weather and Climate Authority

National Warning uses the local name “ROSITA”
instead of “YUTU”

Forecast Track Error - 24-hour: 28.3 km
48-hour: 67.2 km
72- hour: 112 km

The wettest day during the typhoon passage was 30 October.
Baguio and Cabanatuan stations in Northern Luzon recorded
the highest 24-hour rainfall (total amount of rainfall in 1 day).
Each location had approximately 140 mm of rainfall. This isfollowed by Baler station at 119 mm.

The Weather and Climate Authority

National information uses the local name “ROSITA”.
Northern Luzon and the northeastern portion of Central
Luzon received the bulk of the rainfall. Baguio City
reported the highest 5day total rainfall (147.6 mm). Aparri,
Cagayan and Cabanatuan City, Nueva Ecija ranked 2ndand 3rd with 146.8 and 132.6 mm, respectively.

Preliminary Damage Statistics
As of 06 November 2018, a total of eleven (11) dead, two (2) injured and one (1) missing in regions of CALABARZON and CAR.
The estimated total cost of damages is P2.9 billion incurred from damages to agriculture in Regions I, II, III and CAR.

The Weather and Climate Authority

Effects of Typhoon YUTU (local name: Rosita)
The Weather and Climate Authority

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