<s>
Volumetric	B-Algorithm
Imaging	I-Algorithm
and	I-Algorithm
Processing	I-Algorithm
of	I-Algorithm
Integrated	I-Algorithm
Radar	I-Algorithm
,	O
known	O
by	O
the	O
acronym	O
VIPIR	B-Algorithm
,	O
is	O
an	O
analysis	O
and	O
display	O
program	O
for	O
Doppler	B-Application
weather	I-Application
radar	I-Application
,	O
created	O
and	O
sold	O
by	O
Baron	O
Services	O
.	O
</s>
<s>
WSR-88D	B-Algorithm
,	O
or	O
NEXRAD	B-Algorithm
,	O
Doppler	B-Algorithm
radars	O
scan	O
at	O
various	O
elevations	O
,	O
creating	O
a	O
volume	O
scan	O
.	O
</s>
<s>
This	O
data	O
can	O
be	O
manipulated	O
in	O
a	O
three-dimensional	B-Algorithm
view	O
by	O
VIPIR	B-Algorithm
.	O
</s>
<s>
The	O
result	O
of	O
this	O
process	O
is	O
a	O
three-dimensional	B-Algorithm
image	O
of	O
the	O
storm	O
,	O
which	O
may	O
be	O
rotated	O
and	O
viewed	O
from	O
any	O
angle	O
.	O
</s>
<s>
VIPIR	B-Algorithm
images	O
can	O
be	O
constructed	O
from	O
multiple	O
sources	O
,	O
including	O
Doppler	B-Application
weather	I-Application
radar	I-Application
and	O
NEXRAD	B-Algorithm
.	O
</s>
<s>
Included	O
in	O
VIPIR	B-Algorithm
are	O
algorithms	O
that	O
analyze	O
precipitation	O
data	O
in	O
order	O
to	O
find	O
signatures	O
of	O
severe	O
thunderstorms	O
,	O
accumulation	O
of	O
rain	O
or	O
snow	O
,	O
and	O
other	O
weather	O
patterns	O
of	O
interest	O
.	O
</s>
<s>
VIPIR	B-Algorithm
automatically	O
locates	O
thunderstorms	O
over	O
the	O
radar	O
coverage	O
area	O
using	O
algorithms	O
analyzing	O
the	O
water	O
content	O
of	O
each	O
storm	O
,	O
its	O
motion	O
and	O
wind	O
fields	O
.	O
</s>
<s>
The	O
ones	O
capable	O
of	O
producing	O
a	O
tornado	B-Language
are	O
flagged	O
by	O
red	O
or	O
yellow	O
cylinders	O
according	O
to	O
the	O
strength	O
of	O
the	O
vortex	B-Application
as	O
defined	O
by	O
the	O
tornado	B-Algorithm
vortex	I-Algorithm
signature	I-Algorithm
criteria	O
similar	O
to	O
those	O
the	O
National	O
Weather	O
Service	O
uses	O
.	O
</s>
<s>
To	O
do	O
this	O
,	O
it	O
uses	O
the	O
presence	O
of	O
a	O
BWER	B-Algorithm
in	O
reflectivity	O
and	O
atmospheric	O
rotation	O
picked	O
up	O
by	O
Doppler	B-Application
weather	I-Application
radar	I-Application
.	O
</s>
<s>
VIPIR	B-Algorithm
tracks	O
snowfall/rainfall	O
accumulations	O
.	O
</s>
<s>
The	O
BTI	O
,	O
a	O
product	O
that	O
was	O
recently	O
introduced	O
,	O
is	O
mainly	O
used	O
to	O
determine	O
the	O
probability	O
of	O
the	O
presence	O
of	O
a	O
tornado	B-Language
or	O
tornadoes	B-Language
inside	O
a	O
tornadic	B-Algorithm
vortex	I-Algorithm
signature	I-Algorithm
on	O
the	O
rear	O
flank	O
of	O
the	O
storm	O
,	O
to	O
better	O
alert	O
potential	O
high	O
risk	O
areas	O
for	O
tornadoes	B-Language
and	O
to	O
easily	O
track	O
them	O
.	O
</s>
<s>
The	O
higher	O
the	O
BTI	O
value	O
is	O
,	O
the	O
more	O
likely	O
a	O
tornado	B-Language
is	O
on	O
the	O
ground	O
.	O
</s>
