[wxqc] Moisture Content

[Evan Bookbinder]

The "combination of slices" in a worst-case sense is the Composite
Reflectivity product.

Evan 

> -----Original Message-----
> From: wxqc-bounces at lists.gladstonefamily.net 
> [mailto:wxqc-bounces at lists.gladstonefamily.net] On Behalf Of 
> Victor Engel
> Sent: Wednesday, May 02, 2007 7:31 PM
> To: Discussion of weather data quality issues
> Subject: Re: [wxqc] Moisture Content
> 
> Right. Didn't mean to confuse. Right now there is a storm 
> reading 84 Kg/m^2, and there is no mention of hail.
> 
> The problem with the slices is that they're not combined. Or 
> is there a resource that graphically shows this combined data 
> somewhere that I'm unaware of.
> 
> With this low pressure zone hovering over Texas, I've been 
> enjoying watching the storms and comparing the various tools 
> out there.
> Yesterday, I sent an email to someone pointing out a storm 
> where there seemed to be a very strong local difference in 
> relative velocities. I suggested that maybe it would produce 
> a tornado. Half an hour later, there was a tornado warning 
> from the same storm, somewhat north of Fredericksburg.
> 
> On 5/1/07, Evan Bookbinder <Evan.Bookbinder at noaa.gov> wrote:
> > Just to avoid any confusion in Victor's post, there is no 
> correlation 
> > between VIL and hail probability/size...the latter variables come
> 
> ... this seems to have been cut off. Did you intend more?
> 
> > VIL is a vertical integration (summation) of the amount of 
> > reflectivity returns over a given "pixel". Its usefullness 
> is really 
> > aged in an era where we have quick acess to the various 
> tilts/slices 
> > from the radar, but was used as a quick glance to find the 
> 'worst' heavy rain producers quickly.
> >
> > Max values really depend on how VIL is calculated. Wunderground is 
> > using an averaged 1x1 sq. km pixel with a 58 dBZ cap in the VIL 
> > calculation. Values of 80-100 would be seen with really 
> deep/intense 
> > storms in the summer. 71 is very high.
> >
> > Evan
> >
> >
> > > -----Original Message-----
> > > From: wxqc-bounces at lists.gladstonefamily.net
> > > [mailto:wxqc-bounces at lists.gladstonefamily.net] On Behalf 
> Of Victor 
> > > Engel
> > > Sent: Tuesday, May 01, 2007 6:56 PM
> > > To: Discussion of weather data quality issues
> > > Subject: Re: [wxqc] Moisture Content
> > >
> > > What I meant was VIL (vertically integrated liquid). The storm 
> > > currently at 71 Kg/m^2 is predicted by weatherunderground 
> to have a 
> > > 100% chance of producing damaging hail with size up to 
> 2.75 inches.
> > >
> > > On 5/1/07, Victor Engel <brillig at gmail.com> wrote:
> > > > I hope this isn't too far off-topic. I've just recently
> > > discovered the
> > > > wonderful animated radar images provided on weatherunderground.
> > > > Currently there are some storms exceeding the scale, which
> > > maxes out
> > > > at 70 Kg/m^2. Oh, wait a minute. The scale just added
> > > another 5 Kg. I
> > > > guess it's an adaptive scale. How high do these moisture
> > > readings get?
> > > >
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