US METAR RMK Section decoding
Good Day Everybody!
I could need some help in decoding the RMK section of the US/Canada METARs. For example METAR Calgary:
METAR: CYYC 190800Z 34018KT 1 1/4SM -SN DRSN BKN010 OVC021 M09/M10 A3005 RMK SN4SC3SC1 /S01/ RVR RWY28 4500 FT SLP238
Any idea what "...SN4SC3SC1 /S01/ ..." stands for?
In US METARs sometimes you find also in the RMK section something like this: 931023. 931 seems to be the group identifier, but what group?
I do very much appreciate any help. Anybody found any website with an extensive decoding of the RMK section for US/Canada METARs?
Thanks a lot.
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