2008 Forecast Verification Summary

Weather during Winter 2007 / 2008 and Summer 2008 have had largely unexpected Energy Sector implications to those not advised of Dave Melita’s accurate long range forecasts.

Winter 2007/08 Temperature and Precipitation Forecasts Issued October 2007

2008 Temperature Anomaly Dec 2007 to Feb 2008

2008 Temperature Anomaly Dec 2007 to Feb 2008

Precipitation Anomaly Dec 2007 to Feb 2008

Precipitation Anomaly Dec 2007 to Feb 2008

Winter 2007 / 08 Mean Temperature and Precipitation Verification

winter_temperature_measured_anomaly_2008

winter_precipitation_measured_anomaly_2008

At the end of winter of 2007/08 the largely unexpected low natural gas storage condition made the upcoming summer forecast all the more critical. The fundamental basis of Dave’s forecast issued May 2008 was that summer 2008 would average much more moderate than the excessive heat of the preceding summer 2007 in the major energy consuming areas of the Midwest and East.

Summer 2008 Temperature and Precipitation Forecasts Issued May 2008

Temperature Anomaly June to August 2008

Temperature Anomaly June to August 2008

Precipitation Anomaly June to August 2008

Precipitation Anomaly June to August 2008

Summer 2008 Mean Temperature and Precipitation Verification

summer_temperature_measured_anomaly_2008

summer_precipitation_measured_anomaly_2008

Among the listed primary forecast components issued in May was the following: “June is forecast to represent the greatest positive departures from average temperatures in the northern mid Atlantic and Northeast of the upcoming summer.”

Dave’s June Forecast

daves_june_temperature_forcast_anomaly_2008

Observed June 2008

daves_june_temperature_observed_anomaly_2008



November 29 - Long Range Summary

Above average warmth which predominated the majority of the West and northern Plains throughout November is quickly expanding eastward, with the Northeast last to shift warm. A cold start to the coming week across the Northeast featuring temperatures 5° below average is certain to briefly reverse 5° above average midweek, before cold air returns at the end of the week. All models prolong this modest volatility across the Northeast characterized by near seasonal mean temperatures when averaged over several day time scales through the end of the 1st full week of December. Extended range models eventually flood the Northeast with milder air during the 11-15 day period, but this accompanies large scale pattern change directing notably colder air through west central Canada into the Rockies and Plains. Central U.S. cooling forecast to start late in the 6-10 day period may not mark onset of sustained below average temperatures. However, that is not the case across Canada where progressive cooling sets the stage for significantly colder mid December conditions across the northern Plains and Upper Midwest, which are likely to expand into the East by the final week of the month to persist through early January.

 


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