Draft:Tropical Storm Penha (2026): Difference between revisions

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Tropical Storm Penha, locally known as Basyang, is an ongoing tropical storm, that is currently affecting some areas in Visayas and Mindanao. The second named storm of the annual typhoon season, Penha originated from a low-pressure area that formed east-northeast of Yap. The system was classified as a tropical depression by the JMA on February 3, while PAGASA named it Basyang. On February 4, the JTWC followed suit, while designating it as 02W. The JMA then upgraded the depression into a tropical storm, assigning it the name Penha at 21:00 JST (12:00 UTC) of the same day, the replacement name of Vongfong after the 2020 season. The JTWC followed suit on the following day.

On February 2, the JTWC started monitoring a low-pressure area that developed 128 nautical miles (235 km) east-northeast of Yap, with satellite imagery indicating a weak and broad low-level circulation center (LLCC).^[1] The JMA followed suit the following day, identifying the system as a tropical depression.^[2] On February 3, at 17:30 PHT (09:30 UTC), the system entered the Philippine Area of Responsibility (PAR), with PAGASA assigning it the name Basyang.^[3][4] The JTWC issued a TCFA for Basyang a few hours later as it showed signs of organization.^[5] On February 4, at 03:00 UTC, the JTWC followed suit, upgrading the system as a tropical depression, designating it as 02W. The system was cited by satellite imagery with a partially exposed LLCC, being displaced to the south of flaring convection.^[6]The system became highly asymmetric with slow consolidation, while lacking organized banding and deep convection being displaced.^[7]On 18:00 UTC, the JMA upgraded the system into a tropical storm, assigning it the name Penha, the replacement name for Vongfong after the 2020 season.^[8]PAGASA followed suit afterwards.^[9]A microwave pass revealed a well-defined but broad circulation, while the system is experiencing marginally favorable, environmental conditions.^[10]The storm’s LLCC became heavily sheared, with convection being displaced in the northwest.^[11]

On the following day, February 5, the JTWC officially upgraded Penha into a tropical storm, while slowly consolidated. The system starts to have improved vertical alignment inside warm, sea-surface temperatures, with moderate vertical wind shear and poleward outflow.^[12]

On February 4, PAGASA issued Tropical Cyclone Wind Signal No. 1 at 05:00 PHT (21:00 UTC the previous day) in the southern portion of Surigao del Sur,^[13]at 11:00 PHT (03:00 UTC) in the rest of Surigao del Sur, Bucas Grande Island, Siargao Island, and the eastern portion of Surigao del Norte,^[14]and at 17:00 PHT (09:00 UTC) in the rest of Surigao del Norte, Agusan del Norte, Agusan del Sur, Camiguin, Dinagat Islands, Southern Leyte, the eastern portion of Misamis Oriental, the northern portion of Davao Oriental, the southern portions of Eastern Samar and Samar, and the central and southern portions of Leyte.^[15]At 23:00 PHT (15:00 UTC), as the system was upgraded into a tropical storm, Tropical Cyclone Wind Signal No. 2 was issued in Surigao del Sur.^[16]

In the following day, at 02:00 PHT (18:00 UTC), Signal No. 2 was further issued in Agusan del Norte, Bucas Grande Island, Siargao Island, the northern and eastern portions of Agusan del Sur, the northeastern portion of Bukidnon, the southern portion of Surigao del Norte, the southeastern portion of Misamis Oriental, and Boston, Davao Oriental, while Signal No. 1 was issued in the rest of Leyte, Biliran, Bohol, Camiguin, Capiz, Cebu, Guimaras, Iloilo, Negros Occidental, Negros Oriental, Siquijor, the central portion of Eastern Samar, the northern and eastern portions of Bukidnon, the northern and central portions of Davao de Oro and Misamis Occidental, the northeastern portion of Lanao del Sur, the eastern portions of Lanao del Norte and Zamboanga del Norte, the southern portion of Aklan, and the central and southern portions of Antique.^[17]At 05:00 PHT (21:00 UTC the previous day), Signal No. 2 was issued again in the rest of Agusan del Norte, Misamis Oriental, and Surigao del Norte, Camiguin, and the northern portion of Bukidnon, while Signal No. 1 is further issued in the rest of Bukidnon, Lanao del Sur, and Misamis Occidental, Davao del Norte, the central portions of Davao Oriental and Zamboanga del Norte, the northern portions of Cotabato and Zamboanga Sibugay, the northern and central portions of Zamboanga del Sur, and Davao City.^[18]At 08:00 PHT (00:00 UTC), Signal No. 2 was further issued in the rest of Agusan del Sur, the northern portion of Bukidnon, the northeastern portion of Misamis Occidental, and Iligan City, while Signal No. 1 is issued in the rest of Aklan and Antique, and the Cuyo Islands,^[19]while at 11:00 PHT (03:00 UTC), Signal No. 2 was further extended in Siquijor, the southern portions of Bohol and Cebu, and the southeastern portion of Negros Oriental, while Signal No. 1 was issued in Cagayancillo Island.^[20]