KWSI station of origin and arbitrary directories in $LDMHOME

I have recently noticed many new subdirectories being created in the
$LDMHOME directory.  These directories are all one (1) and two (2) alpha
characters in length. EXAMPLE:'+2' ';1' 'Y' '0'

Upon examination of the data they all seem to have the station of origin as
KWSI, for example:

^A^M
867 ^M
FDCNO KWSI 302000^M
^^FDC !FDC 1/2850 N14 FI/T FLYING W  LUMBERTON, NJ.^M
     VOR-A AMDT 2 ...^M
       MSA FROM ROBBINSVILLE (RBV) VORTAC 025-270 1700, 270-025 2100.^M
^^FDC !FDC 1/2852 DCA FI/T RONALD REAGAN WASHINGTON NATIONAL, ^M
WASHINGTON, DC. ^M
  VOR/DME OR GPS RWY 19, AMDT 9...^M
     S-19 MDA 940/HAT 926 ALL CATS. VIS CATS A/B RVR 6000,^M
     CAT C 2 3/4, CAT D 3.^M
     CIRCLING MDA 940/HAA 924 ALL CATS. VIS CATS A/B 1 1/4,^M
     CAT C 2 3/4, CAT D 3.^M
     MINIMUM ALTITUDE AT DCA 5.00 DME (FAF) 1600.^M
     DCA 3.0 DME STEPDOWN FIX NA.^M
     VDP DCA 2.2 DME NA.^M
     ALTERNATE MINIMUMS: CATS A/B 940-2, CAT C 940-2 3/4, ^M
     CAT D 940-3.^M
^^^M
^C^A^M
916 ^M
FDCNO KWSI 302000^M
^^FDC !FDC 1/2853 FDC CANCEL 1/2742 DCA^M
^^^M
^C

This bulletin gets placed into a directory called ~ldm/O/20.

pqcat -v reveals:

Nov 30 21:16:07 pqcat: Starting Up (6337)
Nov 30 21:16:07 pqcat:      357 20011130182856.123  DDPLUS 242  FDCN00    O
301828

I get my data directly from a WSI HCSN feed and from the Canadian Met.
Center's Anikom Satellite service.

Is anyone else getting these randomly created subdirectories in the $LDMHOME
directory?

Stephen Sinnis
Pelmorex Inc.
ssinnis@xxxxxxxxxxxxxxx