TY “GLENDA” [RAMMASUN] - APEC Typhoon. Edna … · TY “GLENDA” (RAMMASUN) (July 13-17, ......

Typhoon “GLEnDA” [RAMMASUN]

EDNA L. JUANILLO Philippines

TY “GLENDA” (RAMMASUN) (July 13-17, 2014)

• It formed as a Tropical Depression (TD) over the Caroline Islands, Pacific Ocean, moving from west to west northwest toward the eastern border of the PAR (11 Jul 2014);

• It gained strength and reached storm intensity in the morning of Jul 12 while over the Pacific Ocean and it was given an international name [RAMMASUN], a Siamese word for "Thunder God" contributed by Thailand;

• It entered the PAR as Tropical Storm (TS) in the afternoon of 13 Jul and was named "GLENDA". It then reached typhoon intensity and continued to move closer to Bicol-Samar Area;

• "GLENDA" as a typhoon, has crossed Bicol Region, Southern Tagalog Provinces and Bataan;

• "GLENDA" has attained 150 kph maximum sustained winds and gustiness up to 180 kph;

• Period of Occurrence of TY "GLENDA" inside the PAR is from Jul 13 (5pm) - 17 (11am), 2014 and PSWS # 3, was in effect in affected areas.

OTHER RELATED INFO •“GLENDA” is the 2nd tropical cyclone in July and the seventh during the year 2014; •It is the second tropical cyclone that crossed the country (after TS "BASYANG" Jan 30 -01 Feb); •It stayed in the PAR for five (5) days which is normal number of days of occurrence of a tropical cyclone. •So far, it is the strongest tropical cyclone to cross the country.

Isobaric, Streamline and Rainfall

Analyses, 11 Jul 2014

PWF ISSUED AT : 5:00 AM 11 JULY 2014

VALID BEGINNING : 5:00 AM TODAY UNTIL 5:00 AM OF NEXT DAY

SYNOPSIS: INTERTROPICAL CONVERGENCE ZONE (ITCZ)

AFFECTING MINDANAO.

FORECAST: DAVAO REGION AND CARAGA WILL HAVE CLOUDY

SKIES WITH LIGHT TO MODERATE RAINS AND THUNDERSTORMS.

METRO MANILA AND THE REST OF THE COUNTRY WILL BE PARTLY

CLOUDY TO CLOUDY WITH ISOLATED RAINSHOWERS OR

THUNDERSTORMS.

.

For 24 Hours, light

rains were recorded

in major parts of the

country with

patches of no rain

in Luzon and

Samar (Visayas)




VALID BEGINNING : 5:00 AM TODAY UNTIL 5:00 AM OF

NEXT DAY

SYNOPSIS: INTERTROPICAL CONVERGENCE ZONE (ITCZ)

AFFECTING MINDANAO.

FORECAST: PALAWAN AND MINDANAO WILL HAVE CLOUDY

SKIES WITH LIGHT TO MODERATE RAINS AND

THUNDERSTORMS. METRO MANILA AND THE REST OF THE

COUNTRY WILL BE PARTLY CLOUDY TO CLOUDY WITH

ISOLATED RAINSHOWERS OR THUNDERSTORMS.

The 24-Hour

recorded rainfall

in major parts of

the country is still

in the light

category.





SYNOPSIS: INTERTROPICAL CONVERGENCE ZONE (ITCZ) AFFECTING

MINDANAO. MEANWHILE, AT 4:00 AM TODAY, THE TROPICAL STORM

RAMMASUN OUTSIDE THE PHILIPPINE AREA OF RESPONSIBILITY

(PAR) WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT 1,540 KM

EAST OF SOUTHERN LUZON (13.6ºN, 139.6ºE). IT IS FORECAST TO

MOVE WEST AT 22 KPH.

FORECAST: MINDANAO WILL EXPERIENCE CLOUDY SKIES WITH

LIGHT TO MODERATE RAINS AND THUNDERSTORMS. METRO MANILA

AND THE REST OF THE COUNTRY WILL BE PARTLY CLOUDY TO

CLOUDY WITH ISOLATED RAINSHOWERS OR THUNDERSTORMS.

Major parts of the

country recorded

light rains.





SYNOPSIS: AT 4:00 AM TODAY, THE CENTER OF TROPICAL STORM

“GLENDA” WAS ESTIMATED BASED ON ALL AVAILABLE DATA AT 750

KM EAST OF VIRAC, CATANDUANES (13.4ºN, 132.0ºE) WITH MAXIMUM

SUSTAINED WINDS OF 80 KPH AND GUSTINESS OF UP TO 95 KPH. IT

IS FORECAST TO MOVE WEST AT 30 KPH.

FORECAST: BICOL REGION AND EASTERN VISAYAS WILL HAVE

CLOUDY SKIES WITH LIGHT TO MODERATE RAINSHOWERS AND

THUNDERSTORMS. METRO MANILA AND THE REST OF THE COUNTRY

WILL BE PARTLY CLOUDY TO CLOUDY WITH ISOLATED RAINSHOWERS

OR THUNDERSTORMS.

Moderate rains

observed in the

provinces of Samar

while light to

moderate rains in

other parts of the

country with patches

of no rain in Luzon

and Mindanao.




VALID BEGINNING : 5:00 AM TODAY UNTIL 5:00 AM OF NEXT

DAY

SYNOPSIS: AT 4:00 AM TODAY, THE EYE OF TYPHOON “GLENDA”

WAS LOCATED BASED ON ALL AVAILABLE DATA AT 270 KM EAST

OF LEGASPI CITY (12.7ºN, 126.4ºE) WITH MAXIMUM SUSTAINED

WINDS OF 120 KPH AND GUSTINESS OF UP TO 150 KPH. IT IS

FORECAST TO MOVE WEST AT 20 KPH.

FORECAST: METRO MANILA, BICOL REGION, CALABARZON,

MARINDUQUE AND SAMAR WILL EXPERIENCE STORMY WEATHER

WHILE CENTRAL LUZON, AND THE PROVINCES OF ROMBLON,

NORTHERN PART OF LEYTE, MINDORO, AKLAN, CAPIZ,

PANGASINAN, NUEVA VIZCAYA AND QUIRINO, WILL HAVE RAINS

WITH GUSTY WINDS AND THE COASTAL WATERS ALONG THESE

AREAS WILL BE ROUGH TO VERY ROUGH.

Moderate to heavy rains

recorded in Southern

Bicol and Southern

Quezon while, light to

moderate rains over

Samar, Leyte, Masbate,

Marinduque, Southern

Tagalog provinces

including Mindoro and

Metro Manila.

Typhoon Glenda (Rammasun) making landfall in the Philippines

on July 15





SYNOPSIS: AT 4:00 AM TODAY, THE EYE OF TYPHOON “GLENDA” WAS

LOCATED BASED ON ALL AVAILABLE DATA AND SUBIC RADAR STATION

IN THE VICINITY OF NAGCARLAN, LAGUNA OR 70 KM SOUTHEAST OF

METRO MANILA (14.0ºN, 121.4ºE) WITH MAXIMUM SUSTAINED WINDS OF

150 KPH AND GUSTINESS OF UP TO 185 KPH. IT IS FORECAST TO MOVE

WEST NORTHWEST AT 26 KPH.

FORECAST: METRO MANILA, CALABARZON, CENTRAL LUZON AND THE

PROVINCES OF MINDORO, CAMARINES, ALBAY, ROMBLON,

PANGASINAN, NUEVA ECIJA, LA UNION, BENGUET AND SOUTHERN

AURORA WILL EXPERIENCE STORMY WEATHER WHILE THE PROVINCES

OF ILOCOS SUR, NUEVA VIZCAYA, QUIRINO, CATANDUANES,

SORSOGON, MASBATE, REST OF AURORA AND TICAO ISLAND WILL

HAVE RAINS WITH GUSTY WINDS AND THE COASTAL WATERS ALONG

THESE AREAS WILL BE ROUGH TO VERY ROUGH. THE REST OF LUZON

AND OF VISAYAS WILL EXPERIENCE CLOUDY SKIES WITH LIGHT TO

MODERATE RAINS AND THUNDERSTORMS. MINDANAO WILL BE PARTLY

CLOUDY TO CLOUDY WITH ISOLATED RAINSHOWERS OR

THUNDERSTORMS.

Moderate rains over

Zambales and Bataan

while light to moderate

rains in other parts of the

country with patches of no

rain over eastern Samar

and southeastern

Mindanao.





SYNOPSIS: AT 4:00 AM TODAY, THE EYE OF TYPHOON “GLENDA”

WAS LOCATED BASED ON ALL AVAILABLE DATA AT 380 KM WEST

SOUTHWEST OF DAGUPAN CITY (15.8ºN, 116.8ºE) WITH MAXIMUM

SUSTAINED WINDS OF 130 KPH AND GUSTINESS OF UP TO 160 KPH.

IT IS FORECAST TO MOVE WEST NORTHWEST AT 20 KPH .

MEANWHILE, THE LOW PRESSURE AREA (LPA) WAS ESTIMATED AT

940 KM EAST OF NORTHERN MINDANAO (10.2 °N, 135.6 °E)

FORECAST: METRO MANILA, CENTRAL LUZON, CALABARZON AND

THE PROVINCES OF MINDORO, PALAWAN, LA UNION, BENGUET AND

PANGASINAN WILL HAVE OCCASIONAL RAINS. THE REST OF THE

COUNTRY WILL BE PARTLY CLOUDY TO CLOUDY SKIES WITH

ISOLATED RAINSHOWERS AND THUNDERSTORMS.

Light to moderate

rains observed in

many parts of the

country with

patches of no

rain.





SYNOPSIS: SOUTHWEST MONSOON AFFECTING THE WESTERN SECTION

OF LUZON. MEANWHILE, AT 4:00 AM TODAY, TROPICAL STORM [MATMO]

OUTSIDE THE PHILIPPINE AREA OF RESPONSIBILITY (PAR) WAS ESTIMATED

BASED ON ALL AVAILABLE DATA AT 1000 KM EAST OF NORTHERN

MINDANAO (10.2°N, 135.4°E) WITH MAXIMUM SUSTAINED WINDS OF 65 KPH

AND GUSTINESS OF UP TO 80 KPH . IT IS FORECAST TO MOVE NORTH

NORTHWEST SLOWLY. \

FORECAST: METRO MANILA, CENTRAL LUZON, CALABARZON AND THE

PROVINCES OF MINDORO AND PALAWAN WILL HAVE OCCASIONAL RAINS.

THE REST OF THE COUNTRY WILL BE PARTLY CLOUDY TO CLOUDY WITH

ISOLATED RAINSHOWERS AND THUNDERSTORMS.

Light to moderate

rains observed in

many parts of the

country with patches

of no rain over

western Visayas.

Total RR and Track of TY “GLENDA

“Glenda” entered the eastern border of the PAR as a tropical storm in the afternoon of Jul 13. It

continued to move west to west northwest and reached typhoon strength before it made landfall.

“GLENDA” has crossed Bicol Region, Southern Tagalog Provinces and Bataan. It left the western

border in the morning of Jul 17. Along its path, the observed cumulative rainfall were moderate to

heavy while light to moderate rains over the nearby provinces. “GLENDA”s rainfall pattern

appeared that it did not enhance the southwest monsoon flow and it behaved like a winter cyclone

where the concentration of rainfall is only along its path.

Top Five (5) PAGASA Stations Recorded

Extremes Weather Parameters

Hi-24 Hr RR

in mm

Hi-Wind Gust

in kph

Minimum SLP

in hPa Stn. No.

545

Name

Sorsogon

RR

247.8

Stn. No.

444

Name

Legaspi

Gust

162

Stn. No.

444

Name

Legaspi

MSLP

964.2

444 Legaspi 238.2 428 Sangley Pt. 162 435 Alabat 975.5

435 Alabat 195.0 545 Sorsogon 122 432 Ambulong 975.8

427 Tayabas 187.4 429 NAIA 113 545 Sorsogon 983.5

546 Catarman 143.5 425 P. Area 108 427 Tayabas 983.9

Source: TY Passage Report Coming From PRSD

Graph of 12 Hourly Estimated Minimum Central

Pressure and Maximum Sustained Winds ESTIMATED 12 HOURLY MAXIMUM SUSTAINED WINDS NEAR THE CENTER OF TY"GLENDA"

JUL 13 - 17, 2014

0

20

40

60

80

100

120

140

160

71300 12 71400 12 71500 12 71600 12 71700 12

MONTH/DATE/TIMEM

SW

IN

KP

H

ESTIMATED 12 HOURLY MINIMUM SEA LEVEL PRESSURE OF TY"GLENDA"

JUL 13 - 17, 2014

940

950

960

970

980

990

1000

71300 12 71400 12 71500 12 71600 12 71700 12

MONTH/DATE/TIME

MS

LP

IN

h

Pa

“GLENDA” has entered the PAR in the afternoon of Jul 13 as a tropical storm.It gained

strength and became a typhoon as it moved closer to Bicol-Samar Area. “GLENDA” with

maximum sustained winds of 150 kph and a central pressure of 963.0 hPa crossed Bicol

region, Southern Tagalog provinces and Bataan. PSWS# 3 was the highest which in effect

to areas along the path of typhoon “GLENDA”, and it left the western border in the

morning of Jul 17 still in a typhoon category.

Summary • The month of July is peak of the southwest monsoon where major parts of the country

usually experience rains especially the western portions

• Tropical Cyclones (TCs) that enter PAR generally move WNW-NW then to N out of the northern border;

• TC “GLENDA” was spotted over the Caroline Is. on the 11th of Jul. as a tropical depression; maintaining its west to west northwest course. It gained storm intensity and given an international name [RAMMASUN];

• It entered the PAR as storm and was given a local name “GLENDA”. It continued to move in a W-WNW direction due to the persistence of the ridge of the NPHPA and intensified further into a typhoon due to favorable conditions such as weak vertical shear and warm sea surface temperatures;

• As a typhoon, it continued to move closer to the country and track across Bicol Region, Southern Tagalog Provinces and Bataan;

• It left the western border of the PAR in the morning of July 17;

• “GLENDA” while inside the PAR, attained maximum sustained winds of 150 kph and gustiness of up to 180 kph.

• Public Storm Warning Signal # 3 was in effect over areas along its path specifically Metro Manila;

• It is the second and strongest tropical cyclone that crossed the country this year after TS “BASYANG” (Jan 30-01 Feb);

• The track and rainfall pattern of “GLENDA” were quite unusual if compared from the normal during the period;

• The impacts of TY “GLENDA”, based on the initial report of the Office of Civil Defense were as follows: a) Damage to Properties (Agri, Infra & Others) = P18,083.603 B, b) Casualties: Dead-106, Injured-1,250 & Missing-5 and c) Affected Regions: I, III, IVa&b, VII and NCR.

TY “GLENDA” [RAMMASUN] - APEC Typhoon. Edna … · TY “GLENDA” (RAMMASUN) (July 13-17, ......

Documents

Transcript of TY “GLENDA” [RAMMASUN] - APEC Typhoon. Edna … · TY “GLENDA” (RAMMASUN) (July 13-17, ......