archive: SETI [ASTRO] Daily Summary of Auroral Activity

SETI [ASTRO] Daily Summary of Auroral Activity

Larry Klaes ( lklaes@bbn.com )
Fri, 28 May 1999 08:53:22 -0400

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>Date: Fri, 28 May 1999 08:14:00 -0300 (ADT)
>From: Michael Boschat <andromed@ATM.DAL.CA>
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>To: ASTRO <astro@lists.mindspring.com>
>Subject: [ASTRO] Daily Summary of Auroral Activity
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>Reply-To: Michael Boschat <andromed@ATM.DAL.CA>
>
>>From Solar Terrestrial Dispatch - Alberta - Canada
>====================================================
>
> Daily Summary of Auroral Activity
>
> CURRENT CONDITIONS AND SYNOPTICAL INFORMATION
> ---------------------------------------------
>
> 0900Z / 28 MAY AURORAL ACTIVITY SYNOPSIS:
>
> Auroral activity was quiet to slightly unsettled over the last 24
> hours.
> Mostly quiet conditions should continue through the next 24 hours.
> Sometime during roughly the first half of the UTC day of 29 May, a fast
> moving coronal mass ejection is expected to impact the Earth. Although
> this disturbance is not expected to be particularly strong, it has the
> potential to produce periods of minor to major auroral storming over
> the high and middle latitude regions. For this reason, a Middle
> Latitude Auroral Activity WATCH will be issued for 29 May. If the
> disturbance arrives on-time, North American observers may be well
> positioned for observing enhanced auroral activity.
> Unfortunately, the phase of the moon will strongly inhibit attempts to
> view activity after moonrise (near 9:45 pm local time). Nevertheless,
> there is an outside chance the disturbance could become vigorous enough
> in intensity to become easily visible even under the near-full phase of
> the moon. The disturbance should last roughly 18 to 24 hours.
> Thereafter, auroral activity should become quiet once again.
>
> NOTE: High latitude stations are now experiencing adverse seasonal
> twilight conditions. Regular reports from the higher latitude stations
> will therefore cease until later this fall.
>
> ** End of Aurora Report **
>
>
>