23 areas under Signal No. 1 due to Tropical Depression Lannie

Twenty-three areas are under Tropical Cyclone Wind Signal (TCWS) No. 1 on Monday after the low pressure area east of Surigao del Norte intensified and became a tropical depression now named Lannie, PAGASA said in its weather bulletin.

TCWS is in effect over:

1. the southern portion of Masbate (Pio V. Corpuz, Cataingan, Palanas, Dimasalang, Uson, Mobo, Milagros, Mandaon, Esperanza, Placer, Cawayan, Balud);
2. the southern portion of Romblon (Cajidiocan, San Fernando, Magdiwang, Santa Maria, Odiongan, Alcantara, Ferrol, Looc, Santa Fe, San Jose);
3. the southern portion of Oriental Mindoro (Roxas, Mansalay, Bulalacao, Bongabong);
4. the southern portion of Occidental Mindoro (Sablayan, Calintaan, Rizal, San Jose, Magsaysay); 
5. the northern portion of Palawan (El Nido, Taytay, Dumaran, Araceli) including Calamian and Cuyo Islands;
6. Eastern Samar;
7. Samar;
8. Biliran;
9. Leyte;
10. Southern Leyte;
11. Capiz;
12. Aklan;
13. Antique;
14. Iloilo;
15. Guimaras;
16. Negros Occidental;
17. the northern and central portions of Negros Oriental (Bais City, Mabinay, City of Bayawan, Basay, City of Tanjay, Manjuyod, Bindoy, Ayungon, Tayasan, Jimalalud, La Libertad, City of Guihulngan, Vallehermoso, Canlaon City);
18. Cebu;
19. Bohol;
20. Surigao del Norte;
21. Dinagat Islands;
22. the northern portion of Agusan del Norte (Magallanes, Remedios T. Romualdez, City of Cabadbaran, Tubay, Santiago, Jabonga, Kitcharao, Butuan City);
23. the northern portion of Agusan del Sur (Sibagat, City of Bayugan, Prosperidad); and the northern portion of Surigao del Sur (San Miguel, Marihatag, San Agustin, Cagwait, Bayabas, Tago, City of Tandag, Cortes, Lanuza, Carmen, Madrid, Cantilan, Carrascal, Lianga)

These areas have strong winds prevailing or expected within 36 hours.

Lannie may possibly make landfall in the vicinity of Siargao-Bucas Grande Islands in the next six hours.

Rainfall

Moderate to heavy and at times intense rains may be expected over Visayas, Bicol Region, Mimaropa, Calabarzon, and Caraga.

Meanwhile, Metro Manila, Bulacan, Bataan and the rest of Mindanao may have light to moderate with at times heavy rains. 

Flash floods, scattered flooding, and rain-induced landslides may occur in areas prone to these hazards.

Coastal waters

The seas may be moderate to rough in the next 24 hours especially in areas under TCWS No. 1.

This would make it risky for those with small seacraft to travel.

If possible, mariners should avoid navigating under these conditions.

Location, track

At 4 a.m., the center of Tropical Depression Lannie was located at 100 km east of Surigao City, Surigao del Norte.

It has maximum sustained winds of 45 km/h near the center, gustiness of up to 55 km/h, and central pressure of 1002 hPa.

From the center, strong winds or higher than that category are extending outwards up to 200 km.

Lannie is moving northwestward at 20 km/h.

After landfall in the vicinity of Siargao-Bucas Grande Islands, Lannie will turn west northwestward, cross Dinagat Islands and Visayas, then emerge over the Sulu Sea on early Tuesday near or over the Cuyo archipelago.

From there, Lannie will then move northwestward, possibly passing near or over northern Palawan or Calamian Islands on Tuesday morning or early afternoon.

Lannie with then emerge over the West Philippine Sea late Tuesday afternoon or evening.

It may intensify into a tropical storm by Wednesday afternoon, and severe tropical storm by the end of the forecast period.

PAGASA advised the public and disaster risk reduction and management offices concerned to take the necessary precautions.

Sunrise was at 5:46 a.m. Sunset will be at 5:44 p.m.

The next weather bulletin will be issued at 8 a.m. —KG, GMA News