A Semi-objective Technique for Forecasting Thunderstorms in Eastern Virginia

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A thunderstorm forecast technique is evaluated on a day by day basis during the months May through September, 1960. The over-all verification probability is 0.92. In a comparison test with persistence forecasts, the semi-objective method has a 24 per cent greater verification probability and shows more than thrice the skill factor.

1 Present address: Det. 2, Weather Group, Langley AFB, Virginia.

A thunderstorm forecast technique is evaluated on a day by day basis during the months May through September, 1960. The over-all verification probability is 0.92. In a comparison test with persistence forecasts, the semi-objective method has a 24 per cent greater verification probability and shows more than thrice the skill factor.

1 Present address: Det. 2, Weather Group, Langley AFB, Virginia.

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