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H+1 obs appearing in H+0 file (fwd)


===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================

---------- Forwarded message ----------
Date: Tue, 29 Feb 2000 14:23:34 -0500 (EST)
From: Kevin Tyle <address@hidden>
To: address@hidden
Subject: H+1 obs appearing in H+0 file

Hi,

I've noticed that hourly METAR observations for
many sites seem to appear in two separate hourly files,
at least for those receiving via NOAAPORT.  Example:

>From today's 18Z sao file:

154 ^M^M
SAUS41 KWBC 291800^M^M
METAR^M^M 
<snip>
KCAK 291751Z 19010KT 10SM SCT200 BKN250 11/M02 A3022=^M^M

and later, in the same file:

440 ^M^M
SAUS41 KCLE 291852^M^M
MTRCAK^M^M
METAR KCAK 291851Z 19010KT 10SM FEW150 SCT200 BKN250 12/M03 A3019 ^M^M
RMK AO2 SLP229 T01221028^M^M
^M^M

It appears that many of the METARs that come in their own individual
bulletin are for hour H+1 but appear in file H+0.

This doesn't seem right.  Has anyone else noticed this, and is there
some good explanation that is escaping me?  This doesn't, BTW, occur
for the DDS feed from FOS.

Thanks,

Kevin Tyle <address@hidden>
MESO, Inc.
Troy, NY