[AZ-Observing] Re: How to interpret the Clear Sky Clock
- From: Stan Gorodenski <stanlep@xxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Tue, 27 Nov 2012 13:15:54 -0700
NOW there is no disconnect. When I posted my message the NWS forecast
said 'Mostly Clear' as I stated in my original message. Now it says
'Partly Cloudy'.
Stan
On 11/27/2012 11:22 AM, Tom Polakis wrote:
> There's no disconnect. The NWS forecast reads "partly cloudy," which
> is what it will be for the average Joe in 18 hours. Most folks just
> want to know if it's going to rain or not; they don't care if there is
> cirrus covering 20% or 80% of the sky.
> The Clear Sky Chart is more appropriate for astronomers. That forecast map
> for total cloud shows a mixture of light blue and white. It's likely that
> you will catch glimpses of the moon, Jupiter, and bright stars in with that
> thick cirrus. So "partly cloudy" sounds about right.
>
> For what it's worth, CSC uses a forecast model from Environment Canada, while
> NWS is obviously a U.S. service.
>
> Tom
> --
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