the massachusetts tornado outbreak of june 1, 2011€¦ · long-track ef3 two ef1s one ... 2011:...
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The Massachusetts Tornado Outbreak of June 1, 2011
Joe DelliCarpini Science and Operations Officer
NOAA/NWS Taunton, MA
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Event Overview
4 tornadoes Long-track EF3 Two EF1s One EF0
4 fatalities, 72 injuries $175 million in damage Damage to 1400 houses and 78 businesses 10,000 acres of woodlands destroyed
NASA Landsat Photo
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Event Overview
Tornadoes were part of a larger severe weather outbreak in a high CAPE, high shear environment
Hail up to 2” in diameter Scattered reports of wind damage
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Synoptic Environment
500 mb closed low in southern Canada Shown to be associated with most New England tornadoes (WFO BOX local study)
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Radar and Surface Plot: 14 UTC
Banacos et al 2011
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Satellite and Surface Plot: 16 UTC
Banacos et al 2011
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Elevated Mixed Layer
Banacos et al 2011
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Elevated Mixed Layer
Banacos et al 2011
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Radar and Surface Plot: 19 UTC
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SPC Mesoanalysis: 19 UTC
Banacos et al 2011
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KENX 0.5 REF/SRM: 2006 UTC
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KENX/KBOX 0.5 SRM: 2015 UTC
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Importance of NWSChat
Courtesy WWLP-TV
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KBOX 0.5 REF/SRM: 2036 UTC
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KBOX 0.5 REF/SRM: 2100 UTC
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KBOX 0.5 REF/SRM: 2113 UTC
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KBOX 0.5 REF/SRM: 2127 UTC
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Best Practices
Skywarn Operations Provided first verified report of tornado Nearly continuous reports as it was on the ground
NWSChat Continuous flow of information to and from WFO
Live NWR Broadcast 436 pm Severe Weather Statement
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Challenges
Raise forecaster awareness of higher-end tornado events Follow-up Tornado Drill assigned
Radar operations New color curves for VEL/SRM Proficiency in adjusting PRF
Roles and responsibilities Formal Severe Weather Operations Plan developed
EMs, Media, and other partners Focused meetings
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Reference
Banacos, P.C., M. L. Ekster, J. W. DelliCarpini, and E. J. Lyons, 2011: The New England Tornadoes of 1 June 2011. To be submitted to The Electronic Journal of Severe Storms Meteorology
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The Massachusetts Tornado Outbreak of June 1, 2011