An evaluation of the Impact Based Warning tool in the Na

NOAA Customer Surveys

IBW survey

Evaluation of the Impact Based Warning Tool in the National Weather Service Central Region

OMB: 0648-0342

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OMB Control No. 0648-0342
Expiration Date: 4/30/2015

This is a voluntary survey.

This survey is intended to evaluate the use of National Weather Service threat tags and impact statements by emergency managers and media broadcasters. Threat tags and impact statements are issued by the National Weather Service during tornado and severe thunderstorm warnings.

Circle the number that indicates your degree of satisfaction.

Not at all Not No Satisfied Extremely Not

satisfied satisfied opinion satisfied applicable

  1. 2 3 4 5 N/A

1. The ability of threat tags and impact statements to convey needed information about thunderstorm and tornado impacts 1 2 3 4 5 N/A

2. The addition of the words “CONSIDERABLE” and “CATASTROPHIC” to convey increased severity of impacts during a tornado warning 1 2 3 4 5 N/A

During a tornado warning, threat tags may be issued. Read through the list of threat tags and associated impact statements.

Threat Tag

Impact Statement

Base threat tag

MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED. SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS. EXTENSIVE TREE DAMAGE IS LIKELY.


Considerable damage threat tag

YOU ARE IN A LIFE THREATENING SITUATION. MOBILE HOMES WILL BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE DESTRUCTION POSSIBLE. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS. EXPECT TREES TO BE UPROOTED OR SNAPPED.

 

Catastrophic damage threat tag

YOU COULD BE KILLED IF NOT UNDERGROUND OR IN A TORNADO SHELTER. COMPLETE DESTRUCTION OF NEIGHBORHOODS...BUSINESSES AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.




3. Ability of impact statement to convey timing (when the storm will hit my area)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

4. Ability of impact statement to convey location (where the storm will hit)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

5. Ability of impact statement to convey magnitude (potential size)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

6. Ability of impact statement to convey storm history (what damage/impacts has the storm had so far)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

7. Ability of impact statement to convey duration (how long the storm will last)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

8. Ability of impact statement to convey confidence (how confident is the NWS forecaster)

    • When base threat tag is issued 1 2 3 4 5 N/A

    • When considerable damage threat tag is issued 1 2 3 4 5 N/A

    • When catastrophic damage threat tag is issued 1 2 3 4 5 N/A

9. Alignment of impact statements with tornado damage threat tag

1 2 3 4 5 N/A

Read through the list of wind speeds and associated impact statements.

Winds

Impact Statement

Winds of 60 mph

EXPECT DAMAGE TO ROOFS…SIDING AND TREES.

Winds of 80 mph

MOBILE HOMES WILL BE HEAVILY DAMAGED. FLYING DEBRIS WILL BE DANGEROUS TO PEOPLE AND ANIMALS. EXPECT CONSIDERABLE DAMAGE TO ROOFS…WINDOWS AND VEHICLES. EXTENSIVE TREE DAMAGE AND POWER OUTAGES ARE LIKELY.

Winds of 100 mph

YOU ARE IN A LIFE THREATENING SITUATION. MOBILE HOMES WILL BE DESTROYED. EXPECT CONSERIABLE DAMAGE TO HOMES AND BUSINESSES. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS. EXPECT EXTENSIVE TREE DAMAGE AND POWER OUTAGES.


10. Impact statements for wind properly communicate the damage threat.

1 2 3 4 5 N/A

Read through the list of hail sizes and associated impact statements.

Winds

Impact Statement

Hail up half dollar/walnut size (1.25 inches)

DAMAGE TO VEHICLES IS EXPECTED.


Hail ping pong ball size (1.50 inches) to tennis ball size (2.50 inches)

PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE TO ROOFS…SIDING…WINDOWS AND VEHICLES.


Hail baseball size (2.75 inches) and larger

PEOPLE AND ANIMALS OUTDOORS WILL BE SEVERELY INJURED. EXPECTED SHATTERED WINDOWS…EXTENSIVE DAMAGE TO ROOFS…SIDING AND VEHICLES.



11. Impact statements for hail properly communicate the damage threat.


1 2 3 4 5 N/A

12. Regardless of current or past practices, what kind of impact information would be most useful to your operations to receive from the NWS?


____________­­­­­­­­­­­­­­­­­­______________________________________________­__________


13. What is your primary job classification?

Emergency Manger Media Broadcaster Other:___________________

14. How long have you been in your current position?

Less than a year 1-5 year 6-10 year 11-20 years 20+ years

15. What is your primary National Weather Service Office? ___________________________

OMB Approval No. 0648-0342 / Expires: 30 April 2015


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