Monday, December 14, 2015

Typhoon Nona in Bicol


(Valid for broadcast until the next bulletin to be issued at 11 PM today)


• Estimated rainfall amount is from heavy to at times intense within the 300 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 cross Burias Island tonight and pass over Mindoro provinces tomorrow afternoon.

Location of eye/center: At 4:00 PM today, the eye of Typhoon “NONA” was located based on all available data including Virac Doppler Radar over Bulusan, Sorsogon (12.7°N, 124.1°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 17 kph.

Forecast Positions:
• 24 hour (tomorrow afternoon): In the vicinity of Mamburao, Occidental Mindoro
• 48 hour (Wednesday afternoon): 245 km West of Calapan City, Oriental Mindoro
• 72 hour (Thursday afternoon): 360 km West of Coron, Palawan
• 96 hour (Friday afternoon): 500 km West of Puerto Princesa City, Palawan (Outside PA)
• 120 hour (Saturday afternoon): 900 km West Southwest of Puerto Princesa City, Palawan (Outside PAR)

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

LUZON: Sorsogon, Masbate including Ticao and Burias Islands, Albay, Camarines Sur, Camarines Norte, Catanduanes, Southern Quezon, Marinduque and Romblon

VISAYAS: Northern Samar

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 4.0 meters

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

LUZON: Batangas, Rizal, Laguna, Cavite, rest of Quezon including Polillo Island, Oriental Mindoro and Occidental Mindoro including Lubang Island

VISAYAS: Eastern Samar, Samar and Biliran

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, Bulacan, Bataan, Pampanga, Southern Zambales, Southern Aurora and Coron

VISAYAS: Leyte, Northern Cebu including Bantayan and Camotes Islands, Aklan, Capiz, Northern Antique, Northern Negros Occidental and Northern 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 11 PM today.

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