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EAX Severe Weather Climatology

EAX Severe Weather Climatology. Chris Bowman EAX Spring Seminar 2011. EAX Severe Weather Climatology. Motivation. Methodology. 30 years of reports from 1/1/1980 to 12/31/2009 5514 reports of severe weather 2762 wind reports (all) 2388 hail reports (≥1”) 364 tornadoes (all)

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EAX Severe Weather Climatology

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  1. EAX Severe Weather Climatology Chris Bowman EAX Spring Seminar 2011

  2. EAX Severe Weather Climatology Motivation Methodology 30 years of reports from 1/1/1980 to 12/31/2009 5514 reports of severe weather 2762 wind reports (all) 2388 hail reports (≥1”) 364 tornadoes (all) Reports divided by month and time of day • Seems like our severe weather occurs later in the day and last longer in the season than we staff for • Are we staffing appropriately during the convective season • Brought this notion up with Julie who suggested a study be done before changes are made • Our original severe weather climatology is outdated

  3. EAX Severe Weather ClimatologyResults • June is peak severe month, 1900 CDT is peak severe time • Hail & Tornadoes peak in May, Wind peaks in June • ≈ 95% of all severe weather occurs from March through September • ≈ 23% of our severe weather occurs in March, August and September • 68.8% of all severe weather occurs from 1 pm – 10 pm Not bad, but…. • 73.6% of all severe weather occurs from 3 pm – midnight CDT, 90.1% of tornadoes, 70% of wind and 75.1% of hail That’s better, but… • 72.5% of our severe weather occurs from 2pm – 11 pm and this allows some time to “settle into” the shift and not walk in guns blazing

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