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Difference in tropical cyclone activity across the JTWC AOR between El Niño and La Niña months


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Difference in tropical cyclone activity across the JTWC AOR between El Niño and La Niña months based on 1979-2021 best track data records and NOAA's Oceanic Niño Index (ONI). Warm colors (red hue) represent increased activity during El Niño events and cool colors (blue hue) represent increased activity during La Niña events.



Rédigé par PATRICK HOAREAU le Saturday, December 6th 2025 à 11:32
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WESTERN PACIFIC: Typhoon 04W(SINLAKU) CAT 1 US is tracking over increasingly cooler seas with ETT forecast to complete by 48h//171000 UTC

WESTERN PACIFIC: 04W(SINLAKU) CAT 3 US forecast to remain a Typhoon for the next 48h before becoming a strong extratropical storm/SOUTH INDIAN: Invest 92S//161000 UTC

WESTERN PACIFIC: Typhoon 04W(SINLAKU) large and still powerful CAT 3 US, slow mover lead to a prolonged period period of destructive winds over the MARIANAS/ SOUTH INDIAN: Invest 92S//150900 UTC

WESTERN PACIFIC: Super Typhoon 04W(SINLAKU) CAT 4 US exhibiting an eye-wall replacement cycle with imminent landfall near AGUIJAN or TINIAN with very destructive winds/ SOUTH INDIAN: Invest 92S/140900 UTC /

WESTERN PACIFIC: Super Typhoon 04W(SINLAKU) CAT 5 US peaked at 160kt,forecast to hit directly TINIAN and SAIPAN islands in 24h at Super Typhoon Intensity//130900 UTC