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Which part of the country (mention in terms of region or state names) has more severe weather days (look at the map severe weather days per year 2003-2012) and why do you think the region is more prone to these events?

Which part of the country (mention in terms of region or state names) has more severe weather days (look at the map severe weather days per year 2003-2012) and why do you think the region is more prone to these events?

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Which part of the country (mention in terms of region or state names) has more severe weather days (look at the map severe weather days per year 2003-2012) and why do you think the region is more prone to these events? 

1 s aan nk a 11 fTTI ainne Severe Weather Reports Per Year (2003-2012) Termado Days Per Year From 2003-2012 Reparts M a 1taade a m Severe Weather Days Per Year From 2003-2012 Reports Cey vartas er ta twntt m ak my u Lee : a s a e le it ir b a aad nn Water ion Wathe Severe Hail Days Fer Year From 2001-2012 Reports Severe Thunderstom Wind Days Per Year From 2003-2012 Reports Dayr ath atum1meort afn na at 5 mer Cay th a vart i part ot a hudentem auet 25 mer L NORA NORA Wte These maps were created by gridding the total number of daily severe weather reports (Midnight to 11:59pm CDT) over the 10-year period from 2003 through 2012 on a 80km grid. The resulting grid numbers are then divided by 10 and smoothed to arrive at the annual average number of days with a report of severe weather based on official NWS Storm Data records. The 80km grid-point value corresponds to the number of events within 25 miles of a point. While the resulting maps generally match our understanding of severe weather climatology, there are a few exceptions that come about as a result of how the severe weather event is quantified. Even through the data are smoothed, severe weather reports cluster around population centers. This can be seen on the "any" or "all" severe weather map in the upper left. Maximum values show up around Charlotte, NC, Huntsville, AL, Jackson, MS, Springfield, MO, and Dallas, TX. These are locations where more severe weather is reported because more people live in those areas. The hail reports used to generate the hail frequency map are from reports of hail 1 inch or greater in diameter. Large hail reports are most common from Rapid City, SD to Denver, CO, Dodge City, KS, and Springfield, MO. The wind report map perhaps poses the greatest challenge in terms of representing where a greater severe thunderstorm wind threat may exist. The majority of severe thunderstorm wind reports are verified by falling trees *not* by observed wind gusts of 50 knots or greater. Thus, there is a distinct tendency for severe thunderstorm winds to be reported in areas with more trees. Recent peer-reviewed studies have compared the severe weather reports used to make these maps with automated observations (for wind), and radar data (for hail). These studies have found that greater concentrations/frequencies of severe hail (based on radar) and 50kt or greater severe thunderstorm wind gusts (based on automated observations) are more likely to occur over parts of the Great Plains and Midwest than what might be indicated in the maps shown here. (Click each map for full resolution version.)
Transcribed Image Text:1 s aan nk a 11 fTTI ainne Severe Weather Reports Per Year (2003-2012) Termado Days Per Year From 2003-2012 Reparts M a 1taade a m Severe Weather Days Per Year From 2003-2012 Reports Cey vartas er ta twntt m ak my u Lee : a s a e le it ir b a aad nn Water ion Wathe Severe Hail Days Fer Year From 2001-2012 Reports Severe Thunderstom Wind Days Per Year From 2003-2012 Reports Dayr ath atum1meort afn na at 5 mer Cay th a vart i part ot a hudentem auet 25 mer L NORA NORA Wte These maps were created by gridding the total number of daily severe weather reports (Midnight to 11:59pm CDT) over the 10-year period from 2003 through 2012 on a 80km grid. The resulting grid numbers are then divided by 10 and smoothed to arrive at the annual average number of days with a report of severe weather based on official NWS Storm Data records. The 80km grid-point value corresponds to the number of events within 25 miles of a point. While the resulting maps generally match our understanding of severe weather climatology, there are a few exceptions that come about as a result of how the severe weather event is quantified. Even through the data are smoothed, severe weather reports cluster around population centers. This can be seen on the "any" or "all" severe weather map in the upper left. Maximum values show up around Charlotte, NC, Huntsville, AL, Jackson, MS, Springfield, MO, and Dallas, TX. These are locations where more severe weather is reported because more people live in those areas. The hail reports used to generate the hail frequency map are from reports of hail 1 inch or greater in diameter. Large hail reports are most common from Rapid City, SD to Denver, CO, Dodge City, KS, and Springfield, MO. The wind report map perhaps poses the greatest challenge in terms of representing where a greater severe thunderstorm wind threat may exist. The majority of severe thunderstorm wind reports are verified by falling trees *not* by observed wind gusts of 50 knots or greater. Thus, there is a distinct tendency for severe thunderstorm winds to be reported in areas with more trees. Recent peer-reviewed studies have compared the severe weather reports used to make these maps with automated observations (for wind), and radar data (for hail). These studies have found that greater concentrations/frequencies of severe hail (based on radar) and 50kt or greater severe thunderstorm wind gusts (based on automated observations) are more likely to occur over parts of the Great Plains and Midwest than what might be indicated in the maps shown here. (Click each map for full resolution version.)
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