Typhoon “Jenny” Update: Weakening Trend Continues as it Veers Towards Southern Taiwan

Typhoon “Jenny” has shown signs of weakening but remains a significant weather disturbance as it begins its west northwestward turn towards Southern Taiwan.

Current Status:

• Location (as of 4:00 AM): The eye of Typhoon Jenny was pinpointed approximately 270 km East Northeast of Itbayat, Batanes (22.0°N, 124.1°E).
• Intensity: The typhoon boasts maximum sustained winds of 150 km/h near its center, with gusts reaching up to 185 km/h. Its central pressure is measured at 955 hPa.
• Movement: Jenny is currently moving in a West Northwestward direction at a speed of 10 km/h.
• Wind Extent: Strong to typhoon-force winds are extending up to 560 km from the typhoon’s center.

Tropical Cyclone Wind Signals (TCWS) in Effect:

1. TCWS No. 3:
   • Areas Covered: Northern portion of Batanes (Itbayat)
   • Wind Threat: Storm-force winds
   • Warning Lead Time: 18 hours
   • Wind Speed Range: 89 to 117 km/h (Beaufort 10 to 11)
   • Potential Impact: Moderate to significant threat to life and property
2. TCWS No. 2:
   • Areas Covered: Rest of Batanes, Northern portion of Babuyan Islands (Babuyan Is., Calayan Is.)
   • Wind Threat: Gale-force winds
   • Warning Lead Time: 24 hours
   • Wind Speed Range: 62 to 88 km/h (Beaufort 8 to 9)
   • Potential Impact: Minor to moderate threat to life and property
3. TCWS No. 1:
   • Areas Covered: Rest of Babuyan Islands, Northern portion of mainland Cagayan (Santa Ana, Gonzaga, Buguey, Santa Teresita, Lal-Lo, Camalaniugan, Pamplona, Claveria, Aparri, Ballesteros, Abulug, Allacapan, Sanchez-Mira, Santa Praxedes, Lasam, Gattaran), Northern portion of Apayao (Calanasan, Pudtol, Luna, Santa Marcela, Flora), Northern portion of Ilocos Norte (Piddig, Bangui, Vintar, Burgos, Pagudpud, Bacarra, Adams, Pasuquin, Carasi, Dumalneg, Laoag City)
   • Wind Threat: Strong winds
   • Warning Lead Time: 36 hours
   • Wind Speed Range: 39 to 61 km/h (Beaufort 6 to 7)
   • Potential Impact: Minimal to minor threat to life and property

Hazards Affecting Land Areas:

• Heavy Rainfall Outlook:
  • Today: Batanes is expected to receive 100-200 mm of rainfall, while the northern portion of Babuyan Islands may receive 50-100 mm.
  • Tomorrow: Both Batanes and the northern portion of Babuyan Islands are forecasted to receive 50-100 mm of rainfall.
  • Note: Elevated or mountainous areas may experience higher rainfall amounts, leading to potential flooding and rain-induced landslides.
• Severe Winds:
  • The wind signals serve as a general warning for wind threats in specific areas due to the typhoon. Coastal and upland/mountainous areas may experience slightly stronger winds.
  • The Southwest Monsoon, enhanced by Jenny, will bring gusty conditions over various areas not under any Wind Signal, especially in coastal and upland/mountainous regions.

Hazards Affecting Coastal Waters:

• A Gale Warning is currently in effect for the coastal waters along the seaboards of Northern Luzon. Mariners, especially those operating smaller vessels, are advised to exercise caution.

Track and Intensity Outlook:

• Typhoon Jenny is forecasted to move west northwestward in the next 12 hours, then westward thereafter. It is expected to make landfall over the southern portion of Taiwan tomorrow morning and exit the Philippine Area of Responsibility (PAR) by tomorrow afternoon or evening.
• The weakening trend is anticipated to continue due to increasing dry air entrainment and vertical wind shear. Its passage over the rugged terrain of southern Taiwan will further weaken the typhoon. Once over the Taiwan Strait, additional cool dry air from the north will result in continued weakening.

Given these developments, the public and disaster risk reduction and management offices are advised to take all necessary precautions. Residents in areas identified as highly or very highly susceptible to these hazards are urged to heed evacuation and other instructions from local officials.

Source: PAGASA