All,
I know many EM, NWS and NOAA folks read this site and this is a more important issue than might be imagined. Please allow me to comment:
I agree Bill. If you sitting in Greensburg with the sirens going off, like they have probably many many times before (when nothing happened - radar indicated rotation etc.), wondering what the best course of action is, and your weather radio beeps and the wording states after declaring a large violent tornado is coming, THIS IS A TORNADO EMERGENCY you're gonna take a direct hit, then it's a no brainer to use that wording under the circumstances of last Friday evening. People are gonna react to that in an instant! Mike U did an awesome job.
There are several points I wish to respond to:
Couldn't agree more that Mike and DDC NWS did a superb job.
However, unless you have your WR-SAME encoded system set up to ALARM on all severe weather statements (and no one that I know does), you would never have learned about the "tornado emergency." It was NOT a tornado warning. Look at the text:
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
941 PM CDT FRI MAY 4 2007
KSC097-050300-
/O.CON.KDDC.TO.W.0025.000000T0000Z-070505T0300Z/
KIOWA KS-
941 PM CDT FRI MAY 4 2007
your weather radio beeps and the wording states after declaring a large violent tornado is coming, THIS IS A TORNADO EMERGENCY you're gonna take a direct hit,
Except it wouldn't have beeped. This message would not have triggered NWR or any other alarm system (such as the coders for NOAA Weather Wire) to trigger because it is not a tornado warning. And, no one wants to be awakened in the middle of the night for a severe weather statement.
Even if someone had set their NWR for "Statements" the system cannot narrow it down to "Greensburg" -- everyone in Kiowa Co. would have heard it (see text above). So, to some, it would have been a false alarm. It is the polygons that are intended to make the warnings more location-specific.
The comment is made above about "nothing happening" with tornado warnings. This is true for two reasons. The countywide warnings were not geographically specific and our imperfect state-of-the-art. The polygon warnings address the former. We need to work on the latter as I said in my earlier response.
Believe me, there is a practical side to storm warnings and simple is better than complex. We hear that from our clients and the people we work with constantly.
Added complexity has unintended consequences. With regard to "tornado warnings with hurricanes" we told people to "go to the lowest floor" as a 30 ft. storm surge came inland during Katrina. Did that make any sense?
Flood warnings are way too complex. We added unnecessary, and sometimes negative, complications by issuing tornado warnings for hurricane-force winds (something that has been fixed). Lets not take a good system (polygon tornado warnings) that is a big step forward and add unnecessary complexity by adding another "layer" on the warning process without giving it very, very careful thought.
Mike