Presentation is loading. Please wait.

Presentation is loading. Please wait.

Dennis Cavanaugh – Melissa Huffman – Jennifer Dunn – Mark Fox National Weather Service Rio Vista, TX Image: Kevin Rose.

Similar presentations


Presentation on theme: "Dennis Cavanaugh – Melissa Huffman – Jennifer Dunn – Mark Fox National Weather Service Rio Vista, TX Image: Kevin Rose."— Presentation transcript:

1 Dennis Cavanaugh – Melissa Huffman – Jennifer Dunn – Mark Fox National Weather Service Rio Vista, TX Image: Kevin Rose

2 15 May 2013 Tornado Outbreak Overview 19 tornadoes 19 tornadoes One EF-4 tornado (Granbury) One EF-4 tornado (Granbury) One EF-3 tornado (Cleburne) One EF-3 tornado (Cleburne) 6 fatalities, over 50 injuries 6 fatalities, over 50 injuries Over $100 million in property damage Over $100 million in property damage Dallas/Fort Worth Metroplex Granbury Cleburne Tornado Paths

3 Integrated Warning Teams Local emergency management/government officials Local emergency management/government officials National Weather Service National Weather Service Media representatives Media representatives Public Public Virtual Operations Support Teams (VOST) Virtual Operations Support Teams (VOST) Can also include agencies that support FEMA’s Emergency Support Functions, amateur radio Can also include agencies that support FEMA’s Emergency Support Functions, amateur radio

4 Integrated Warning Teams Get persons in a threat area to take protective action Get persons in a threat area to take protective action Protective action decision making requires a need for repetitive messaging as individuals will seek to confirm threats from multiple sources (Mileti and Sorensen, 2000) Protective action decision making requires a need for repetitive messaging as individuals will seek to confirm threats from multiple sources (Mileti and Sorensen, 2000) Build community resiliency Build community resiliency

5 Data To evaluate IWT messaging during the event, 1229 instances of communication were collected from the following sources:

6 IWT Interactions NWSMediaEMPublicVOST NWS Media EM Public VOST Communications documented between 7-10 PM Communications documented between 7-10 PM Columns represent receivers, rows represent communicators Columns represent receivers, rows represent communicators

7 Rumor Tracking Identified pieces of information (rumors) to track Identified pieces of information (rumors) to track Created adjacency matrix to document directed communications from data Created adjacency matrix to document directed communications from data Successful communication defined as documented instance of interaction occurring within 15 minutes of introduction into the IWT Successful communication defined as documented instance of interaction occurring within 15 minutes of introduction into the IWT Digraph used to visualize adjacency matrix Digraph used to visualize adjacency matrix Emergency Management VOST Public Media NWS Digraph for communication of an NWS warning

8 Rumor Modeling – By Example Digraph for communication of an NWS warning SendersRecipients Ann Carla, Ehaz Bert Carla, Dana CarlaEhaz Dana Ann, Carla EhazBert AnnEhaz Dana Carla Bert An rumor network:

9 Rumor Modeling – By Example Digraph for communication of an NWS warning SendersRecipients Ann Carla, Ehaz Bert Carla, Dana CarlaEhaz Dana Ann, Carla EhazBert An rumor network: AnnBertCarlaDanaEhazAnn00101 Bert00110 Carla00001 Dana10100 Ehaz01000

10 Rumor Modeling – By Example An rumor network: AnnBertCarlaDanaEhaz Ann00101 Bert00110 Carla00001 Dana10100 Ehaz01000 AnnEhaz Dana Carla Bert Digraph

11 Emergency Management VOST Public Media NWS DigraphNWSMediaEMPublicVOSTNWS01101 Media00010 EM00010 Public00000 VOST00010 Corresponding adjacency matrix Rumor Modeling: NWS Warning Communication

12 Why is NWS to public communication assigned a 0 in the model? 15 May 2013 Public Response Survey, NWS Fort Worth 29 Respondents CASA Public Response Survey, Dr. Joseph Trainor 169 Respondents Rumor Modeling: NWS Warning Communication

13 Emergency Management VOST Public Media NWS DigraphNWSMediaEMPublicVOSTNWS01101 Media00010 EM00010 Public00000 VOST00010 Corresponding adjacency matrix Rumor Modeling: NWS Warning Communication

14 Confirmation of the TornadoReport of Significant Damage Emergency Management VOST Public Media NWS Emergency Management VOST Public Media NWS Results: Granbury Tornado

15 Confirmation of the Tornado Report of Significant Damage A5A5A5A5NWSMediaEMPublicVOST NWS00000 Media00230 EM00230 Public00320 VOST00230 A5A5A5A5NWSMediaEMPublicVOSTNWS Media EM Public VOST Given enough time for message transmission, are there any communication gaps within the IWT? A5A5A5A5NWSMediaEMPublicVOSTNWS00000 Media00230 EM00230 Public00320 VOST00230 With several IWT members not receiving the message, the availability of the message for public consumption was limited. Results: Granbury Tornado

16 Confirmation of the Tornado Report of Significant Damage A5A5A5A5NWSMediaEMPublicVOSTNWS00000 Media00230 EM00230 Public00320 VOST00230 A5A5A5A5NWSMediaEMPublicVOSTNWS Media EM Public VOST Results: Granbury Tornado

17

18 Questions? Dennis Cavanaugh Melissa Huffman Jennifer Dunn Mark Fox


Download ppt "Dennis Cavanaugh – Melissa Huffman – Jennifer Dunn – Mark Fox National Weather Service Rio Vista, TX Image: Kevin Rose."

Similar presentations


Ads by Google