Weather Bulletin: Typhoon Nona in Bicol


ISSUED AT 11:00 PM, 14 DECEMBER 2015
(Valid for broadcast until the next bulletin to be issued at 5 AM tomorrow)


• Estimated rainfall amount is from heavy to at times intense within the 250 km diameter of the typhoon.
• Flash floods and landslides are expected over the areas under signals # 2 and 3, while storm surges of up to 3 meters are possible.
• Nona is expected to pass over Mindoro provinces tomorrow afternoon.

Location of eye/center: At 10:00 PM today, the eye of Typhoon “NONA” was located based on all available data including Virac Doppler Radar over Sibuyan Sea or 100 km East Northeast of Romblon, Romblon (12.7°N, 123.2°E).

Strength: Maximum sustained winds of 150 kph near the center and gustiness of up to 185 kph.

Forecast Movement: Forecast to move West at 15 kph.

Forecast Positions:
• 24 hour (tomorrow evening): 120 km West of San Jose, Occidental Mindoro
• 48 hour (Wednesday evening): 230 km Northwest of Puerto Princesa City, Palawan
• 72 hour (Thursday evening): 410 km West of Puerto Princesa City, Palawan
• 96 hour (Friday evening): 790 km West Southwest of Puerto Princesa City, Palawan (Outside PAR)
• 120 hour (Saturday evening): 1210 km West Southwest of Puerto Princesa City, Palawan (Outside PAR)

Public Storm Warning Signal No 03
(121-170 kph Expected in 18hrs.)

LUZON: Oriental Mindoro Masbate including Ticao and Burias Islands, Albay, Marinduque and Romblon

Impacts of the wind
• Heavy damage to high–risk structures;
• Moderate damage to medium- risk structures;
• Light damage to low-risk structures
• Increasing damage (up to more than 50%) to old, dilapidated residential structures and houses of light materials. Majority of all nipa and cogon houses may be unroofed or destroyed
• Houses of medium strength materials (old, timber or mixed timber-CHB structures, usually with G.I. roofing’s); some warehouses or bodega-type structures are unroofed.
• There may be widespread disruption of electrical power and communication services.
• Almost all banana plants are downed
• Some big trees (acacia, mango, etc.) are broken or uprooted,
• Dwarf-type or hybrid coconut trees are tilted or downed.
• Rice and corn crops may suffer heavy losses
• Damage to shrubbery and trees with foliage blown off; some large trees blown down.

Open Sea Wave Height: > 14.0 meters

Storm surge may reach up to 3.0 meters

Public Storm Warning Signal No 02
(61-120kph Expected in 24 hrs.)

LUZON: Camarines Sur, Camarines Norte, Sorsogon, Catanduanes, Southern Quezon, Batangas, Calamian Group of Islands and Occidental Mindoro including Lubang Island

VISAYAS: Northern Samar

Impacts of the wind

• Light to Moderate damage to high risk structures;
• Very light to light damage to medium-risk structures;
• No damage to very light damage to low risk structures
• Unshielded, old dilapidated schoolhouses, makeshift shanties, and other structures of light materials are partially damaged or unroofed.
• A number of nipa and cogon houses may be partially or totally unroofed.
• Some old galvanized iron (G.I.) roofs may be peeled or blown off.
• Some wooden, old electric posts are tilted or downed.
• Some damage to poorly constructed signs/billboards
• In general, the winds may bring light to moderate damage to the exposed communities. Most banana plants, a few mango trees, ipil-ipil and similar types of trees are downed or broken
• Some coconut trees may be tilted with few others broken
• Rice and corn may be adversely affected
• Considerable damage to shrubbery and trees with some heavy-foliaged trees blown down.

Open Sea Wave Height: 4.1-14.0 meters

Storm surge possible at coastal areas

Public Storm Warning Signal No 01
(30-60kph Expected in 36 hrs.)

LUZON: Metro Manila, Cavite, Laguna, Bulacan, Rizal, Northern Palawan, Bataan and rest of Quezon including Polillo Island

VISAYAS: Eastern Samar, Samar, Biliran, Leyte, Northern Cebu including Bantayan and Camotes Islands, Aklan, Capiz, Antique and Iloilo

Impacts of the wind
• Very light or no damage to low risk structures,
• Light damage to medium to high risk structures
• Slight damage to some houses of very light materials or makeshift structures in exposed communities. Some banana plants are tilted, a few downed and leaves are generally damaged.
• Twigs of small trees may be broken.
• Rice crops, however, may suffer significant damage when it is in its flowering stage.

Open Sea Wave Height: 1.25-4.0 meters

PSWS elsewhere has now been lifted. The public and the disaster risk reduction and management council concerned are advised to take appropriate actions and watch for the next Severe Weather Bulletin to be issued at 5 AM tomorrow.


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