archive: SETI [ASTRO] Middle Latitude Auroral Activity Watch is Active -

SETI [ASTRO] Middle Latitude Auroral Activity Watch is Active -

Larry Klaes ( lklaes@bbn.com )
Tue, 01 Jun 1999 13:53:54 -0400

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>Date: Sun, 30 May 1999 07:15:05 -0300 (ADT)
>From: Michael Boschat <andromed@ATM.DAL.CA>
>X-Sender: andromed@Sleet
>To: ASTRO <astro@lists.mindspring.com>
>Subject: [ASTRO] Middle Latitude Auroral Activity Watch is Active - 0520
UT - May 30
>Sender: owner-astro@brickbat12.mindspring.com
>Reply-To: Michael Boschat <andromed@ATM.DAL.CA>
>
>>From Solar Terrestrial Dispatch - Alberta, Canada
>==================================================
>
>Middle Latitude Auroral Activity Watch is Active - 0520 UT - May 30
>
> Auroral activity was quiet to unsettled over the last 24 hours. A
>complete and thorough analysis of all available data concerning the
>large 27 May solar coronal mass ejection now seems to indicate that the
>source of the disturbance was on the backside of the Sun, not on the
>facing side as was previously believed. As a result, there is considerable
>doubt that the aforementioned disturbance will actually impact the Earth.
>It very likely was directed away from the Earth on the opposite side of
>the Sun.
> Nevertheless, we are going to maintain the active status of the Middle
>Latitude Auroral Activity Watch over the next 24 hours in the event that a
>higher speed coronal hole associated solar wind stream begins to buffet
>the Earth.
>Should this happen, auroral activity could initially intensify to levels
>that may briefly become visible from some upper-middle latitude locations.
>
> NOTE: Northern high latitude stations are now experiencing adverse
> seasonal twilight conditions. Regular reports from the higher northern
> latitude stations will therefore cease until later this fall.
>
> ** End of Aurora Report **
>
>
>