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Published byTamsin Newton Modified over 9 years ago
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EFCC Weather Outlook 5 June 2012
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Fire Season Key Elements From NWCC Below normal snowpack Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Snow Water Equivalent By River Basin
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Snow Water Equivalent By River Basin
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Snow Water Equivalent By River Basin
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt Early snowmelt Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Snow Water Equivalent Mt. Hood Test Site Average So Far Last Year
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Snow Water Equivalent Cascade Summit (Central Cascades) Average This Year Last Year
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Snow Water Equivalent Wolf Creek (NE Mountains) Average This Year Last Year
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought Long term drought Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Drought Monitor May 29 th, 2012
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Drought Monitor May 29 th, 2012
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall Below normal June rainfall Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Precipitation Probability June 2012
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August Dry July / August Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Precipitation Probability July, August, September
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Temperature Probability July, August, September
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer)
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Fire Season Key Elements From NWCC Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Remains to be Seen Remains to be Seen Below normal snowpack - YES Early snowmelt - YES Early snowmelt - YES Long term drought – YES (South Central) Long term drought – YES (South Central) Below normal June rainfall - No Below normal June rainfall - No Dry July / August - YES Dry July / August - YES Dry lightning episodes (2-3 per summer) Dry lightning episodes (2-3 per summer) Remains to be Seen Remains to be Seen
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El Niño/La Niña Predictions Various Forecasting Techniques La Niña El Niño
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El Niño/La Niña Predictions Various Forecasting Techniques
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ENSO Neutral Summers 500mb Height
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ENSO Neutral Summers 500mb Height Anomaly
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ENSO Neutral Summers 850mb Temperature Anomaly
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Analog Years El Niño/La Niña
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Analog Years El Niño/La Niña Paul Werth 1951 2009 1963 1976
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Analog Years El Niño/La Niña Paul Werth 1951 2009 1963 1976 Pete Parsons 1951 1972 2009
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Analog Years El Niño/La Niña Paul Werth 1951 2009 1963 1976 Pete Parsons 1951 1972 2009 Jim Little 1963 1972 2001 200919752000
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EFCC Weather Outlook Bottom Line
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EFCC Weather Outlook Bottom Line In many respects a rather “average” summer Driest areas east of Cascades Driest months August and September Best chances for dry lightning August and September
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EFCC Weather Outlook 5 June 2012 Questions? Contact jlittle@odf.state.or.us Questions? Contact jlittle@odf.state.or.us
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EFCC Weather Outlook 5 June 2012 Questions? Contact jlittle@odf.state.or.us Questions? Contact jlittle@odf.state.or.us
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EFCC Weather Outlook 5 June 2012 Questions? Contact jlittle@odf.state.or.us Questions? Contact jlittle@odf.state.or.us
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