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Tropical Storm Jangmi (2014)

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This article is about the 2014 tropical cyclone. For other uses, see Jangmi and Seniang.
Tropical Storm Jangmi (Seniang)
Tropical storm (JMA scale)
Tropical storm (SSHWS)
Jangmi over the Philippines on December 29
FormedDecember 28, 2014
DissipatedJanuary 1, 2015
Highest winds10-minute sustained: 75 km/h (45 mph)
1-minute sustained: 85 km/h (50 mph)
Lowest pressure996 hPa (mbar); 29.41 inHg
Fatalities66 confirmed
Damage$28.3 million (2014 USD)
Areas affectedPhilippines, Borneo
Part of the 2014 Pacific typhoon season

Tropical Storm Jangmi, known in the Philippines as Tropical Storm Seniang, was a weak but destructive tropical cyclone that impacted the Philippines during late December 2014. It produced heavy rainfall which caused serious flooding. Flooding in Philippines caused 66 deaths and at least $28.3 million damage.[1]

The last of twenty-three named storms of the annual typhoon season, the late-season cyclone remained weak throughout most of its lifespan. The tropical storm reached peak strength on December 29 near Surigao del Sur, Mindanao.[2] Jangmi dissipated just before the 2015 Pacific typhoon season started.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On December 26, both the JTWC and PAGASA started to monitor a tropical disturbance well east of Mindanao, Philippines just where Sinlaku formed. On December 27, the JMA started to monitor a tropical depression, that had developed within favourable conditions for further development, about 630 km (390 mi) to the west of Koror, Palau.[3][4] Over the next day the depression gradually developed further and was named Seniang by PAGASA as it moved northwesterly along a ridge of high pressure, while atmospheric convection wrapped into the system's low level circulation centre.[5][6] Both the JTWC and PAGASA upgraded the depression to a tropical storm late on the same day.[citation needed]

Early on December 29, the JMA upgraded the system to a tropical storm, naming it Jangmi. At the time of the upgrade, Jangmi made landfall over the town of Hinatuan in the province of Surigao del Sur. The storm traversed the CARAGA region, and exited the landmass of Mindanao during the afternoon hours of the same day, as it had accelerated to the northwest. Late on December 30, Jangmi made landfall over Cebu and southern Negros, right before the JTWC downgraded it to a tropical depression. On December 31, the JTWC issued the final warning to Jangmi, and the JMA downgraded it to a tropical depression at noon the same day. The system was last noted by the JMA and the JTWC on January 1, 2015, dissipating over Borneo, just before the 2015 Pacific typhoon season started.[citation needed]

Impact

Philippines

Effect of TS Seniang (Jangmi) on the Philippines
Casualties
 Region   Dead  Injured Missing
  VI Western Visayas 3 7 0
 VII Central Visayas 21 8 4
VIII Eastern Visayas 32 26 0
   X Northern Mindanao 4 0 0
  XI Davao 2 0 0
XIII CARAGA 4 2 2
Total 66 43 6
Damage
Amount
₱ million  US$ million 
Infrastructure 552.4 12.3
Agriculture[a] 719.2 16.0
Total damages 1,271.6 28.3
Source [1]

Tropical Storm Jangmi made landfall in Surigao del Sur on December 29.[2][7] It produced heavy rains and caused flooding in Southern Philippines.[8]

In Malacañang, PCOO Secretary Coloma defended the government from criticism that not enough was done to prevent the high casualty count, saying agencies gave timely warnings and that President Aquino had directed government to mobilize all resources to help the victims.[8]

Retirement

Because the total cost of damage reached at least ₱ 1 billion, the name Seniang was retired by PAGASA, and replaced by Samuel for the 2018 season.[9][10]

See also

Notes

  1. ^ Damages of agriculture according to the NDRRMC include crops, livestocks, high-value commercial crops (HVCC) and fisheries.

References

  1. ^ a b "SitRep No. 22 re Effects of Tropical Storm SENIANG". National Disaster Risk Reduction and Management Council. January 10, 2015. Archived from the original (PDF) on February 27, 2015. Retrieved January 10, 2015. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help). Similarly to Tropical Storm Sinlaku but it is Minimal Winds than Jangmi. But Sinlaku is struck on Mindanao in Late November. But Jangmi is struck on Late December/
  2. ^ a b "'Seniang' now a tropical storm; makes landfall". Sun Star. December 29, 2014. Retrieved January 9, 2015.
  3. ^ "JMA WWJP25 Warning and Summary December 27, 2014 06z". Japan Meteorological Agency. December 27, 2014. Archived from the original on December 27, 2014. Retrieved January 1, 2015.
  4. ^ Joint Typhoon Warning Center. "Significant Tropical Weather Advisory for the Western and South Pacific Oceans December 27, 2014 06z". United States Navy, United States Airforce. Archived from the original on December 28, 2014. Retrieved January 1, 2015.
  5. ^ Joint Typhoon Warning Center (December 28, 2014). "Prognostic Reasoning for Tropical Depression 23W December 28, 2014 03z". United States Navy, United States Airforce. Archived from the original on December 28, 2014. Retrieved January 1, 2015.
  6. ^ "Severe Weather Bulletin Number One Tropical Cyclone Warning: Tropical Depression "Seniang", December 27, 2014 21z". Philippine Atmospheric, Geophysical and Astronomical Services Administration. July 5, 2014. Archived from the original on January 2, 2015. Retrieved January 2, 2015. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  7. ^ "SitRep No. 2 re Effects of Tropical Storm SENIANG" (PDF). National Disaster Risk Reduction and Management Council. December 29, 2014. Retrieved January 8, 2015. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  8. ^ a b "At least 54 dead, mostly from slides, floods in Visayas, Mindanao". Interaksyon. December 31, 2014. Retrieved January 1, 2015. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  9. ^ "Pagasa kills names of killer typhoons". Philippine Daily Inquirer. February 8, 2015. Archived from the original on February 9, 2015. Retrieved February 9, 2015. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  10. ^ "Philippine Tropical Cyclone Names". Philippine Atmospheric, Geophysical and Astronomical Services Administration. Retrieved February 1, 2015.

External links

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