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The Fast Break Newsletter: February 2011

Seasonal climate and risk information for Victorian cropping regions

Volume 6/Issue 2 - 28th February 2011 | www.dpi.vic.gov.au/climaterisk | ISSN 1833-719

 

Past outlook (January 11th)

Current outlook (February 21st)

PACIFIC OCEAN: Cool
INDIAN OCEAN: Neutral
RAINFALL: Wetter to slightly wetter
TEMPERATURE: No clear signal
PACIFIC OCEAN: Cool (weak La Niña)
INDIAN OCEAN: Slightly cool
RAINFALL: Average/slightly wetter
TEMPERATURE: No clear signal

30 Day Moving SOI

The SOI remains strongly positive indicating that the Walker Circulation is enhanced and that the pressure at Darwin is lower than at Tahiti (an indicator of La Niña conditions).

http://www.bom.gov.au/climate/enso/

SOI 30

Air Pressure (MSLP last 30 days NOAA)

Air Presssure (MSLP last 30 days NOAA). Average (top), anomaly (below). Pressure has been lower through Indonesia, off WA and below Tasmania. Pressure was slightly higher off the coast of NSW and higher off SW WA.

feb-11-slp_30b_fnl.gif

http://www.esrl.noaa.gov/psd/map/images/fnl/slp_30b.fnl.gif

NOAA/NESDIS SST Anomaly (degrees C), 4/4/2011

The equatorial Pacific continues to remain cooler than average (below La Niña thresholds), but is showing a warming trend. The Indian ocean off WA is warm, the Coral Sea is rewarming after being cooled by cyclone Yasi.

http://www.osdpd.noaa.gov/ml/ocean/sst/anomaly.html

feb-11-3.gif

OLR Totals

Victoria has been slightly cloudier for the last 30 days. There is large amounts of cloud off NW WA. Cloudiness continues to remain below average near the dateline at the equator (brown) often an indicator for La Niña.

http://www.bom.gov.au/climate/mjo

feb-11-4.gif

Modelled Climate and Ocean Predictions 28th February 2011

  Month of Run Forecast Months Autumn Pacific Ocean NINO 3.4 Autumn Eastern Indian Ocean Autumn Rainfall Autumn Temperature
Coupled GCM’s System 3 ECMWF Europe Feb MAM Cool (weak La Niña)

Slightly cool

Slightly wetter? Slightly cooler?
POAMA BoM Australia Feb MAM Slightly cool Slightly cool Average, slightly wetter E Gipps, Average, slightly cooler N, slightly warmer Gipps
SINTEX JMA Japan Feb MAM Cool (La Niña) Slightly cool Average, wetter E, slightly drier SW Cooler
CFS03 NCEP USA Feb MAM Cool (weak La Niña) Slightly cool Slightly Wetter Slightly Cooler
GSM ECPC USA Feb MAM   Slightly wetter E/average W Slightly Warmer
Ensemble UKMO UK Feb MAM Cool (weak La Nina) Slightly cool Average Average
IRI USA Feb MAM Cool (La Nina) Slightly cool Neutral Neutral
APCC Korea Experimental Feb MAM   Slightly wetter, Average SW Average
Statistical BoM Seasonal forecast Feb MAM   Average, slightly drier Slightly Warmer
QDNRM Qld Australia Feb MAM   Average, slightly drier  
ESS DAF WA Feb FMA Cool (La Nina)   May-Oct Average, slightly drier Gipps  
Legend
 
Wetter: increased chances of wetter than average conditions.
Warmer: increased chances of warmer than average conditions.
Neutral: the chances of wet, average and dry or warm, average and cool are equal.
Drier: increased chances of drier than average conditions.
Cooler: increased chances of cooler than average conditions.

 

  Fore-cast Months Winter Pacific Ocean NINO 3.4 Winter Eastern Indian Ocean Winter Rainfall Winter Temp Comments Web Address
Coupled GCM’s System 3 ECMWF Europe JJA Slightly cool

Slightly cool, neutral

Average? Average? Victoria doesn't feature on their map of the world! link
POAMA BoM Australia JJA Neutral Neutral Average, slightly wetter SW coast Warmer W, slightly warmer E Experimental link
SINTEX JMA Japan JJA Cool (La Niña) Neutral Average, slightly wetter coast Average Experimental link
CFS03 NCEP USA JJA Slightly cool Neutral Average Average   link
GSM ECPC USA JJA   Average Average   link
Ensemble UKMO UK MJJ Slightly cool Neutral Average Average   link
IRI USA JJA Slightly cool Neutral Neutral Neutral/ slightly warmer coast   link
APCC Korea Experi-mental         Experimental summary for 20 CGC models. link
Statistical BoM Seasonal forecast         Comparison between current SST’s and historic rainfall link
QDNRM Qld Australia         5 phase system based on previous 2 months SOI link
ESS DAF WA JJA Slightly cool       David Stephens and team. NINO 3 SST. link
Legend
 
Wetter: increased chances of wetter than average conditions.
Warmer: increased chances of warmer than average conditions.
Neutral: the chances of wet, average and dry or warm, average and cool are equal.
Drier: increased chances of drier than average conditions.
Cooler: increased chances of cooler than average conditions.
 

 

Editors:
Dale Grey Cobram DPI 03 5871 0600 dale.grey@dpi.vic.gov.au
Chris Sounness Horsham DPI 03 5362 2111 chris.sounness@dpi.vic.gov.au

Published by the Department of Primary Industries, Grains
110 Natimuk Rd
Horsham Vic 3401