[EAS] Silos continue - or not

[Mike McCarthy]

BZW technical criteria will not cross purposes. BZW has a 12 hour
conditions time duration along with continuous winds greater than 30MPH
combined with concurrent heavy snow. SQW is a short fuse event similar to
warm weather events.

Such would be better suited as a SPS after the SQW. Problem is SPS (or SVS
for that matter) is not a SAME criteria message on NWR.

We used to relay BZW as a short fuse alert when the NWS issued them
mid-event or shortly before the start. Now that they issue the warning at
the same time as other winter hazard event products well in advance (more
than 6 hours), we find it's no longer suitable for an EAS relay despite
the fact it is a life hazard warning message. In this case, it's the
advance time.

Moreover and similar to earthquakes, blizzards tend to announce themselves
 unlike tornadoes and flash floods.

MM

On Thu, December 19, 2019 3:15 pm, Dale Lamm wrote:
>
> Hopefully the NWS will re-issue the warning message with BZW, SVS or SPS,
> something we do process. Un-attended night operation at many stations is
> a fact of life. Fortunately, snow squalls are typically a daytime
> occurrence.
>