ICU_188

 ICU_188

support material for the ICU 188 teleconference (MJJ 2016) including preliminary rainfall outlooks from METPI

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Nicolas Fauchereau

May 03, 2016
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Transcript

  1. 1.

    Island Climate Update 188 Forecast period: May – July 2016

    Teleconference Wednesday 4th of May 2016 (12:30 PM NZ Cme) 4/05/16 1
  2. 2.

    1) Some words on Rainfall / ConvecCon and SST anomalies

    last month (April 2016) 2) ENSO (Pacific Ocean – Atmosphere system): situaCon and forecast 3) Madden-Julian OscillaCon (MJO) diagnosCcs and forecasts 4) METPI Rainfall Forecast 5) METPI SST Forecast 4/05/16 2 Outline
  3. 6.

    4/05/16 6 •  Well below = < 40 % of

    normal •  Below = between 40 and 80 % •  Normal = between 80 and 120 % •  Above = between 120 and 160 % •  Well above = > 160 % Past 6 months rainfall anomalies for ICU Islands group (TRMM)
  4. 11.

    The ENSO Precipita;on Index (ESPI) for the last 30 days

    (3 May) is +0.95 (El Niño) SOI and ESPI INDICES 4/05/16 hTp://trmm.gsfc.nasa.gov/trmm_rain/ Events/thirty_day.html 11
  5. 15.

    ENSO forecast © NIWA (Na)onal Climate Centre Na)onal Guidance) 4/05/16

    15 CPC/IRI Early-Month Consensus ENSO Forecast ProbabiliCes IRI/CPC Mid-Month Plume-Based ENSO Forecast ProbabiliCes Season La Niña Prob. Neutral Prob. El Niño Prob. MJJ 2016 5% 76% 29% ASO 2016 52% 40% 8% NDJ 2016/17 60% 30% 10% Climate Model or Group MJJ 2016 ASO 2016 NDJ 2016/17 POAMA2.4 (Australia) Neutral Neutral Unavailable ECMWF (EU) Neutral Neutral Unavailable EuroSIP (EU) Neutral Neutral Unavailable LDEO5 (USA) Neutral Neutral Neutral NCEP CFS (USA) Neutral La Niña La Niña Met Office (UK) Neutral + Unavailable Unavailable SCRIPPS/MPI (USA/FRG) La Niña La Niña La Niña NASA-GMAO (USA) La Niña La Niña Unavailable JMA (Japan) Neutral La Niña Unavailable FRCGC SINTEX (Japan) Neutral Neutral La Niña CPC CCA (USA) Neutral + Neutral - La Niña NOAA Linear Inverse (USA) Neutral Neutral Neutral - CLIPER (USA) Neutral Neutral - La Niña Florida State Univ. (USA) Neutral + Neutral - Neutral -
  6. 21.
  7. 22.

    4/05/16 22 METPI rainfall results May – July 2016 ICU

    Rainfall Guidance ISLAND PROBABILITY OUTLOOK CONFIDENCE Cook Islands (Northern) 20 30 50 ABOVE Moderate-High Tokelau 20 30 50 ABOVE High Tuvalu 20 30 50 ABOVE High Marquesas 20 35 45 ABOVE High Tuamotu Islands 25 35 40 AVG - ABOVE High Society Islands 25 40 35 AVG - ABOVE High Samoa 30 35 35 CLIMATOLOGY Moderate-High Pitcairn Island 30 40 30 NEAR NORMAL Moderate Kiribati (Western) 35 35 30 CLIMATOLOGY Moderate Papua New Guinea 35 35 30 CLIMATOLOGY Moderate-High New Caledonia 35 40 25 AVG - BELOW High Solomon Islands 35 40 25 AVG - BELOW Moderate-High Austral Islands 40 35 25 AVG - BELOW Moderate-High Kiribati (Eastern) 40 35 25 AVG - BELOW Moderate Wallis & Futuna 40 35 25 AVG - BELOW Moderate-High Cook Islands (Southern) 45 35 20 BELOW Moderate-High Niue 45 35 20 BELOW Moderate-High Tonga 45 35 20 BELOW Moderate-High Vanuatu (South) 45 35 20 BELOW Moderate-High Fiji 50 30 20 BELOW Moderate-High Vanuatu (North) 50 30 20 BELOW Moderate-High FSM 50 30 20 BELOW Moderate-High Rainfall outcomes estimated from an average of dynamical and statistical models for the Pacific Ocean region. The first three columns indicate the probability for rainfall occurring in one of three terciles (lower-L, middle-M, upper-U). The fourth column is