I'm not really shure, just guessing but I assume visibility will not be sufficient with snow. We need to have at least 5000 m ground visibility in D and 1.500 m visibility in G - I'm not shure if you would comply with these rules during snowfall,
That's the same as Canada and the U.S.: 3 statute miles in controlled airspace, 1 statute mile in uncontrolled airspace. Ottawa is clear and sunny today, but here are some other Canadian METARs:
CYYQ 261400Z 04003KT 4SM -SN OVC010 M15/M17 A3017 RMK SC8 SLP220 CYYG 261400Z 33020G33KT 6SM -SHSN BLSN OVC021 M08/M11 A2983 RMK SC8 SLP105 CYHZ 261400Z 32026G35KT 15SM -SHSN DRSN BKN028 M07/M11 A2980 RMK SC7 SLP098
Churchill, Manitoba (up on Hudson Bay) is reporting 4 miles (6,000m) visibility in light snow. That's marginal VFR, and the low ceiling would require SVFR to enter a control zone. Charlottetown, PEI is reporting 6 miles (10,000m) visibility in light snow showers *and* blowing snow, which is entirely legal VFR. Halifax, Nova Scotia (CYHZ) is also reporting light snow showers and drifting snow, with visibility of 15 statute miles (24,000m).
Personally, I would not fly through any of these, but not because of the visibility. The small dewpoint spread, low ceilings, and relatively warm temperatures all suggest icing conditions, especially in Halifax and Charlottetown. I prefer to fly through small dry snow falling from higher clouds, not big, wet snow flakes falling from clouds near the ground. Churchill might not be so bad, but I'd have to check if there was an inversion above the field that would bring me into warmer (and icier) temperatures.
All the best,
David
_______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
