<s>
SIGWX	B-Application
is	O
a	O
Significant	O
Weather	O
Chart	O
defined	O
by	O
ICAO	O
.	O
</s>
<s>
The	O
SIGWX	B-Application
charts	O
only	O
show	O
the	O
forecast	O
for	O
the	O
specific	O
hour	O
,	O
however	O
it	O
is	O
common	O
place	O
for	O
parameters	O
such	O
as	O
the	O
JetStream	O
,	O
CAT	O
&	O
CB	O
to	O
be	O
interpreted	O
+	O
/	O
-	O
3	O
hours	O
of	O
the	O
chart	O
validity	O
time	O
.	O
</s>
<s>
ITCZ	O
)	O
on	O
WAFS	O
SIGWX	B-Application
forecasts	O
(	O
in	O
BUFR-code	O
and	O
PNG	O
chart	O
form	O
)	O
.	O
</s>
