JTWC Patrick Hoareau
WNP: Invest 95W now on the map// ENP: update on 05E(ENRIQUE)/ North Atlantic: 04L(DANNY). 29/06utc update - 06/29/2021 - 10:53
2021 JUNE 29 0630UTC #WESTERNNORTHPACIFIC INVEST #95W UPDATE As of 03:00 UTC June 29, 2021: Location: 20.0°N 140.9°E Maximum Winds: 12/18 kt Minimum Central Pressure: 1010 mb LOCATED AT...
WNP, NIO, SHEM: no suspect areas at the moment// ENP: Hurricane 05E(ENRIQUE): 80knots/Cat1, TCFA for Invest 96L, 28/06utc update - 06/28/2021 - 11:00
2021 JUNE 28 0630UTC #EASTERNNORTHPACIFIC HU #05E #ENRIQUE WARNING 12/UPDATE As of 00:00 UTC June 28, 2021: Location: 19.4°N 105.8°W Maximum Winds: 80 kt ( 150km/h) Gusts: 100 kt ( 185km/h)...
WNP: 06W(CHAMPI): Cat 1 Typhoon, failed to intensify further, environment will become unfavourable after 12hours, 26/03utc update - 06/26/2021 - 07:42
2021 JUNE 26 0310UTC #WESTERNNORTHPACIFIC TY #06W #CHAMPI WARNING 21/UPDATE As of 00:00 UTC June 26, 2021: Location: 24.8°N 139.7°E Maximum Winds: 65 kt ( 120km/h) Gusts: 80 kt ( 150km/h)...
WNP: 06W(CHAMPI) has reached Typhoon intensity, near-rapid intensification likely next 24hours, 25/09utc update - 06/25/2021 - 13:02
2021 JUNE 25 0815UTC #WESTERNNORTHPACIFIC TY #06W #CHAMPI WARNING 18/UPDATE As of 06:00 UTC June 25, 2021: Location: 22.1°N 139.2°E Maximum Winds: 65 kt ( 120km/h) Gusts: 80 kt ( 150km/h)...
WNP: 06W(CHAMPI) is intensifying, forecast to peak as a US/CAT 2 Typhoon by 36hours, 25/03utc update - 06/25/2021 - 07:22
2021 JUNE 25 02UTC #WESTERNNORTHPACIFIC TS #06W #CHAMPI WARNING 17/UPDATE As of 00:00 UTC June 25, 2021: Location: 21.1°N 139.4°E Maximum Winds: 60 kt ( 110km/h) Gusts: 75 kt ( 140km/h)...
WNP: 06W(CHAMPI) is forecast to intensify rather rapidly next 36hours to Typhoon intensity, 24/03utc update - 06/24/2021 - 07:18
2021 JUNE 24 0245UTC #WESTERNNORTHPACIFIC TS #06W #CHAMPI WARNING 13/UPDATE As of 00:00 UTC June 24, 2021: Location: 18.6°N 140.0°E Maximum Winds: 40 kt ( 75km/h) Gusts: 50 kt ( 95km/h)...
WNP: TS 06W(CHAMPI) is getting better organized, forecast to peak at Typhoon intensity by 72hours, center relocated at 23/06utc - 06/23/2021 - 13:30
2021 JUNE 23 09UTC #WESTERNNORTHPACIFIC TS #06W #CHAMPI WARNING 10/UPDATE As of 06:00 UTC June 23, 2021: Location: 17.1°N 140.5°E Maximum Winds: 40 kt ( 75km/h) Gusts: 50 kt ( 95km/h) Minimum...
Western North Pacific: TD 06W is still forecast to intensify next 72hours, 23/03utc update - 06/23/2021 - 07:18
2021 JUNE 23 0245UTC #WESTERNNORTHPACIFIC TD #06W #CHAMPI WARNING 9/UPDATE As of 00:00 UTC June 23, 2021: Location: 15.0°N 140.1°E Maximum Winds: 30 kt ( 55km/h) Gusts: 40 kt ( 75km/h) Minimum...
WNP: 06W has reached Tropical Storm intensity, forecast to reach Typhoon intensity by 72hours, 22/09utc update - 06/22/2021 - 13:10
2021 JUNE 22 0745UTC #WESTERNNORTHPACIFIC TS #06W WARNING 6/UPDATE As of 06:00 UTC June 22, 2021: Location: 13.9°N 142.5°E Maximum Winds: 35 kt ( 65km/h) Gusts: 45 kt ( 85km/h) Minimum Central...
WNP: TD 06W is tracking to the South of Guam, forecast to reach Tropical Storm intensity by 24hours, 21/21utc update - 06/22/2021 - 01:30
2021 JUNE 21 2025UTC #WESTERNNORTHPACIFIC TD #06W WARNING 4/UPDATE As of 18:00 UTC June 21, 2021: Location: 12.6°N 144.5°E Maximum Winds: 30 kt ( 55km/h) Gusts: 40 kt ( 75km/h) Minimum Central...
WNP: TD 06W, Up-dated position at 21/09utc, forecast to track south of Guam within 12hours - 06/21/2021 - 14:15
2021 JUNE 21 0935UTC #WESTERNNORTHPACIFIC TD #06W WARNING 2/UPDATE As of 09:00 UTC June 21, 2021: Location: 11.9°N 145.8°E Maximum Winds: 30 kt ( 55km/h) Gusts: 40 kt ( 75km/h) Minimum Central...
WNP: TD 06W(Invest 94W) approaching Guam and slowly intensifying, 21/03utc update - 06/21/2021 - 07:35
2021 JUNE 21 0230UTC #WESTERNNORTHPACIFIC TD #06W WARNING 1 As of 00:00 UTC June 21, 2021: Location: 11.2°N 147.4°E Maximum Winds: 30 kt ( 55km/h) Gusts: 40 kt ( 75km/h) Minimum Central...
Western North Pacific: Invest 94W now under watch, Up-graded to Medium at 18/14utc - 06/18/2021 - 13:10
2021 JUNE 18 1435UTC #WESTERNNORTHPACIFIC INVEST #94W UPDATE As of 12:00 UTC June18, 2021: Location: 6.0°N 153.7°E Maximum Winds: 15/20 kt Minimum Central Pressure: 1008 mb LOCATED AT 18/12UTC...
05W(KOGUMA) peaked over the Golf of Tonkin, now Southeast of Hanoi// Tropical Cyclone Formation Alert for Invest 92E, 12/21utc updates - 06/13/2021 - 00:55
2021 JUNE 12 2025UTC #WESTERNNORTHPACIFIC TD #05W #KOGUMA WARNING 4/ As of 18:00 UTC June12, 2021: Location: 20.5°N 106.5°E Maximum Winds: 25 kt Gusts: 35 kt ( 65km/h) Minimum Central...
WNP: TD 05W tracking over Hainan, forecast to reach T.Storm intensity within 12hours over the Gulf of Tonkin, Eastern North Pacific Invests, 12/09utc updates - 06/12/2021 - 12:25
2021 JUNE 12 0745UTC #WESTERNNORTHPACIFIC TD #05W WARNING 2/UPDATE As of 06:00 UTC June12, 2021: Location: 19.0°N 108.8°E Maximum Winds: 25 kt Gusts: 35 kt ( 65km/h) Minimum Central Pressure:...
SCS: Tropical Cyclone Formation Alert for Invest 92W, likely to intensify, track over Hainan and then Gulf of Tonkin, 11/12h30utc update - 06/11/2021 - 17:10
2021 JUNE 11 1245UTC #WESTERNNORTHPACIFIC INVEST #92W TCFA/UPDATE As of 12:00 UTC June11, 2021: Location: 18.0°N 112.2°E Maximum Winds: 18/23 kt Minimum Central Pressure: 1005 mb LOCATED AT...
South China Sea: Invest 92W is up-graded to Medium, 11/06utc update - 06/11/2021 - 13:55
2021 JUNE 11 0930UTC #WESTERNNORTHPACIFIC INVEST #92W UPDATE As of 06:00 UTC June11, 2021: Location: 18.0°N 112.7°E Maximum Winds: 20 kt Minimum Central Pressure: 1000 mb LOCATED AT 11/06UTC...
South China Sea: JTWC is now monitoring Invest 92W apprx 520km South of Hong Kong, 10/0830utc update - 06/10/2021 - 12:40
2021 JUNE 10 0825UTC #WESTERNNORTHPACIFIC INVEST #92W UPDATE As of 06:00 UTC June10, 2021: Location: 17.6°N 115.0°E Maximum Winds: 15/20 kt Minimum Central Pressure: 1000 mb LOCATED AT...
2 week cyclonic development potential: heightened potential for development through mid-June, 09/06utc update - 06/09/2021 - 10:40
Issued at 08/1730UTC by NOAA. In collaboration with the JTWC and several well known organizations. Archives: HERE Cheers, Patrick Hoareau JTWC PH ILES SOEURS Joint Typhoon Warning...
Western North Pacific: Invest 91W on the map to the Southwest of Kwajalein - 06/08/2021 - 11:30
2021 JUNE 08 07UTC #WESTERNNORTHPACIFIC INVEST #91W UPDATE As of 06:00 UTC June 08, 2021: Location: 5.6°N 167.5°E Maximum Winds: 15 kt Minimum Central Pressure: 1008 mb LOCATED AT 08/06UTC...
Western North Pacific: no Suspect Area at the moment// Eastern North Pacific: TCFA for Invest 92E - 06/07/2021 - 12:10
JTWC PH ILES SOEURS Joint Typhoon Warning Center
WNP: 04W (CHOI-wan) has begun to turn Northeastward, clipping Southern Taiwan,forecast to dissipate by 48h South of Kyushu, 03/21utc update - 06/04/2021 - 02:10
TS 04W. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS THE BROAD AREA OF CONVECTION ASSOCIATED WITH THE SYSTEM HAS BECOME TOTALLY OFFSET TO THE WEST-SOUTHWEST FROM A FULLY EXPOSED LOW LEVEL...
WNP: 04W (CHOI-wan) is back to Tropical Storm intensity, extended forecast track to include likely extra-tropical transition in 4/5 days - 06/03/2021 - 07:30
TS 04W. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS A SYSTEM THAT HAS DEEPENED, ALBEIT WITH A PARTIALLY EXPOSED LOW LEVEL CIRCULATION (LLC) AS THE BROAD CENTRAL CONVECTION HAS BECOME OFFSET TO THE...
WNP: TD 04W (CHOI-wan) is forecast to intensify a bit within 24hours, track Southwest of Manila and then over the South China Sea, 02/09utc update - 06/02/2021 - 13:45
TD 04W. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A SMALL, DISORGANIZED LOW LEVEL CIRCULATION CENTER(LLCC) JUST NORTHEAST OF MINDORO, WITH A RECENT FLARE UP OF MODERATE TO DEEP CONVECTION NOW...
WNP: 04W (CHOI-wan) : forecast to track over the Sibuyan Sea within 24hours as a 35knot Tropical Storm, 01/21utc update - 06/02/2021 - 01:42
TD 04W. 01/20UTC. 6H LOOP.ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A DISORGANIZED LOW-LEVEL CIRCULATION WITH DEEP CONVECTION BEING SHEARED TO THE SOUTHWEST OF THE CENTER. 2021 JUNE 01...
04W (CHOI-wan) : struggling to organize, forecast intensity is much lower than the previous forecast// Invest 93S and Invest 90W on the map, 01/03utc update - 06/01/2021 - 08:55
TS 04W. DUE TO THE WESTWARD SHIFT IN THE FORECAST TRACK OVER THE PHILIPPINES THROUGH 72H, THE INTENSITY FORECAST IS SIGNIFICANTLY LOWER THAN THE PREVIOUS FORECAST. 2021 JUNE 01 0425UTC...
WNP: 04W(CHOI-wan) : the forecast track is now closer to Samar in 24h, Confidence in the forecast is moderate, 31/21utc update - 06/01/2021 - 01:45
TS 04W(CHOI-wan). SATELLITE ANIMATION DEPICTS INTENSE (-82C TOPS) DEEP CONVECTION SPREADING OVER AND OBSCURING THE LOW-LEVEL CIRCULATION CENTER. 2021 MAY 31 2050UTC #WESTERNNORTHPACIFIC TS #04W...
WNP: 04W named (CHOI-wan) is forecast to intensify to Typhoon/CAT 1 in 36hours and then track close to the East of Catanduanes, 31/09utc update - 05/31/2021 - 13:32
TS 04W(CHOI-wan). ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS THE LOW-LEVEL CIRCULATION (LLC) IS PARTIALLY EXPOSED, OFFSETTING THE REGION OF DEEPENED CENTRAL CONVECTION WITH OVERSHOOTING CLOUD...
WNP: 04W is now analyzed as 50knot Tropical Storm, forecast to reach Typhoon intensity by 36hours, 31/03utc update - 05/31/2021 - 07:25
TS 04W. 31/0230UTC. 4H LOOP.ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS THE LOW LEVEL CIRCULATION HAS BECOME PARTIALLY EXPOSED, OFFSETTING AN OTHERWISE DEEPENED CENTRAL CONVECTION WITH...
Les News
A new version (V8.2) of the AMSR2 winds for Tropical Cyclones (TC-winds) has been released
03/06/2026
- PATRICK HOAREAU
3 Week Tropical Cyclone Formation Probability//03/03/26
03/04/2026
- PATRICK HOAREAU
Pluviométrie pour la saison estivale 2025/26 à MAURICE et à RODRIGUES, update le 27/02/26
02/27/2026
- PATRICK HOAREAU
3 Week Tropical Cyclone Formation Probability//12/30/25
12/31/2025
- PATRICK HOAREAU
2021 STORM YEAR JTWC TROPICAL ACTIVITY TIMELINE
12/23/2025
- PATRICK HOAREAU
Difference in tropical cyclone activity across the JTWC AOR between El Niño and La Niña months
12/06/2025
- PATRICK HOAREAU
Liens utiles
3 Week Tropical Cyclone Formation Probability//03/03/26
3 Week Tropical Cyclone Formation Probability//12/30/25
2021 STORM YEAR JTWC TROPICAL ACTIVITY TIMELINE
Difference in tropical cyclone activity across the JTWC AOR between El Niño and La Niña months
Major HURRICANE 05E(ERICK) near CAT 4 US making landfall
3 Week Tropical Cyclone Formation Probability//03/03/26
3 Week Tropical Cyclone Formation Probability//12/30/25
2021 STORM YEAR JTWC TROPICAL ACTIVITY TIMELINE
Difference in tropical cyclone activity across the JTWC AOR between El Niño and La Niña months
Major HURRICANE 05E(ERICK) near CAT 4 US making landfall
MAURICE: Avis de Pluies Torrentielles en début d'après midi, précipitations particulièrement intenses sur la région de Port Louis//0617h30
MMS/Vacoas: Janvier 2023: le plus pluvieux à MAURICE depuis 20ans! RODRIGUES: proche de la normale...
ILES SOEURS: la REUNION et MAURICE douchées par des pluies localement fortes// Et ce n'est probablement pas fini// 26/19h
MAURITIUS: significant rain at last!
MMS/Vacoas: dry to very dry December 2022 for MAURITIUS and RODRIGUES & the outer islands//Forecast for JAN & FEB 2023
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