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Wind speed for TCs affecting HK
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NW Pacific - ASCAT image
NW Pacific - Winds / analyses
NW Pacific - Steering charts
Reference: TC names
Reference: Beaufort scale
Reference: TC classification
Reference: HKWW TC policy
Links to TC sites
TC Watch > ENSO Watch [Refresh] [中文]
 Real-time SOI Data |
Numerical data from here and values are calculated using the 1887-1989 base period. This information is usually updated every weekday at 2:00pm (AEST), public holidays excluded.
| Date | Pressure at Tahiti (hPa) | Pressure at Darwin (hPa) | Daily value | 30-day average SOI | 90-day average SOI |
| 19-Oct-2021 | 1016.99 | 1011.70 | 15.47 (-5.87) | 11.45 (+0.10) | 8.84 (+0.08) |
| 18-Oct-2021 | 1016.85 | 1010.65 | 21.34 (+1.68) | 11.35 (+0.24) | 8.76 (+0.14) |
| 17-Oct-2021 | 1015.49 | 1009.55 | 19.66 (-8.77) | 11.11 (+0.17) | 8.62 (+0.12) |
| 16-Oct-2021 | 1015.90 | 1008.60 | 28.43 (+6.77) | 10.94 (+0.62) | 8.50 (+0.12) |
| 15-Oct-2021 | 1014.90 | 1008.65 | 21.66 (+4.77) | 10.32 (+0.38) | 8.38 (-0.1) |
| 14-Oct-2021 | 1013.66 | 1008.15 | 16.89 (+2.39) | 9.94 (+0.07) | 8.48 (-0.17) |
| 13-Oct-2021 | 1013.09 | 1007.95 | 14.50 (+1.54) | 9.87 (-0.45) | 8.65 (-0.26) |
| 12-Oct-2021 | 1012.85 | 1007.95 | 12.96 (+10.64) | 10.32 (-0.39) | 8.91 (-0.15) |
| 11-Oct-2021 | 1011.85 | 1008.60 | 2.32 (+6.45) | 10.71 (-0.06) | 9.06 (-0.26) |
| 10-Oct-2021 | 1011.65 | 1009.40 | -4.13 (-6.64) | 10.77 (-0.1) | 9.32 (-0.23) |
| 9-Oct-2021 | 1012.98 | 1009.70 | 2.51 (-10.57) | 10.87 (-0.17) | 9.55 (-0.14) |
| 8-Oct-2021 | 1014.42 | 1009.50 | 13.08 (-1.04) | 11.04 (+0.32) | 9.69 (-0.04) |
| 7-Oct-2021 | 1013.78 | 1008.70 | 14.12 (+6.77) | 10.72 (+0.68) | 9.73 (-0.01) |
| 6-Oct-2021 | 1012.23 | 1008.20 | 7.35 (-5.22) | 10.04 (+0.30) | 9.74 (-0.04) |
| 5-Oct-2021 | 1012.14 | 1007.30 | 12.57 (-5.28) | 9.74 (-0.07) | 9.78 (+0.01) |
| 4-Oct-2021 | 1013.21 | 1007.55 | 17.85 (+1.74) | 9.81 (+/-0.00) | 9.77 (+0.16) |
| 3-Oct-2021 | 1014.09 | 1008.70 | 16.11 (+2.57) | 9.81 (+0.21) | 9.61 (+0.17) |
| 2-Oct-2021 | 1014.94 | 1009.95 | 13.54 (+2.78) | 9.60 (+0.36) | 9.44 (-0.02) |
| 1-Oct-2021 | 1015.26 | 1010.70 | 10.76 (-7.49) | 9.24 (+0.05) | 9.46 (-0.09) |
| 30-Sep-2021 | 1016.39 | 1011.00 | 18.25 (-12.24) | 9.19 (-0.24) | 9.55 (-0.09) |
| 29-Sep-2021 | 1017.85 | 1010.40 | 30.49 (-6.41) | 9.43 (+0.08) | 9.64 (-0.01) |
| 28-Sep-2021 | 1018.58 | 1010.05 | 36.90 (+12.65) | 9.35 (+0.78) | 9.65 (+0.29) |
| 27-Sep-2021 | 1016.65 | 1010.25 | 24.25 (+24.49) | 8.57 (+0.66) | 9.36 (+0.27) |
| 26-Sep-2021 | 1013.18 | 1010.90 | -0.24 (+15.68) | 7.91 (-0.21) | 9.09 (+0.06) |
| 25-Sep-2021 | 1011.09 | 1011.45 | -15.92 (+2.26) | 8.12 (-0.72) | 9.03 (-0.11) |
| 24-Sep-2021 | 1011.46 | 1012.20 | -18.18 (-7.96) | 8.84 (-0.95) | 9.14 (-0.27) |
| 23-Sep-2021 | 1013.45 | 1012.85 | -10.22 (-10.34) | 9.79 (-0.74) | 9.41 (-0.23) |
| 22-Sep-2021 | 1014.79 | 1012.45 | 0.12 (-12.9) | 10.53 (-0.17) | 9.64 (-0.16) |
| 21-Sep-2021 | 1015.81 | 1011.30 | 13.02 (+4.88) | 10.70 (+0.32) | 9.80 (+0.07) |
| 20-Sep-2021 | 1016.79 | 1013.10 | 8.14 | 10.38 | 9.73 |
Charts: 2021 | 2020 | 2019 | 2018 | 2017 | Source: The State of Queensland, Australia
| ENSO Wrap Up (Source: here) |
Issued on
SOI summary:
Sea surface temperature summary:
ENSO outlooks:
Last Accessed: Wed Oct 20 2021 02:44:47 HKT
Last Modified: Wed Jul 24 2019
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Statistics |
